EPSON TERMINAL PRINTER LQ-860/1060 TECHNICAL MANUAL
NOTICE ‘ All rights reserved. Reproduction of any part of this manual in any form whatsoever without SEIKO EPSON’s express written permission is forbidden. ‘ The contents of this manual are subject to change without notice. “ All efforts have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.
REV.-A PRECAUTIONS Precautionary notations throughout the text are categorized relative to 1) personal injury, and 2) damage to equipment: DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by a DANGER headings. WARNING Signals a precaution which, if ignored, could result in damage to equipment.
REV.-A PREFACE This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of the LQ-860/l 060. The instructions and procedures included herein are intended for the experienced repair technician, and attention should be given to the precautions on the preceding page. The chapters are organized as follows: Chapter 1 - Provides a general product overview, lists specifications, and illustrates the main components of the printer.
REVISION TABLE REVISION DATE ISSUED =)= -v- I CHANGE DOCUMENT I I 1st issue I
REV.-A TABLE OF CONTENTS CHAPTER 1. GENERAL DESCRIPTION CHAPTER 2. OPERATING CHAPTER 3. OPTIONAL CHAPTER 4. DISASSEMBLY, ASSEMBLY, A N D PRINCIPLES EQUIPMENTS CHAPTER 5. TROUBLESHOOTING CHAPTER 6.
REV.-A CHAPTER 1 GENERAL DESCRIPTION 1.1 FEATURES-=M~.”H..H..-M..M .-.~..H.H”.UM.-.-.~.M.-.-Ho ...-.---.-.Hu.-.M1..1-1 1.2 SPECIFICATIONS .fl.-..-~..-.~.~.-..-..-tiuu. ‘iHu.o.u..-ttio.-.--.-.-tio.- .~.-l-3 1.2.1 Hardware Specifications”... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..........................1-3 1.2.2 Firmware Specifications -.-.-ti.m.-.o.tito.-.tim.-.ti .-.~--.~.~-.~’~-..l-9 1.3 INTERFACE OVERVIEW ----- C.~..~-..-..M~MU.6fiM-H..fi.- .m-.fi.-fifHM-.
REV.-A LIST OF FIGURES Figure 1-1. LQ-860/1060 Exterior Views ““””””””””””””””””””””””””””””””””””””” ““”””””””””””””””””””l-1 Figure 1-2. Printheacf Pin Configuration -.--”-”””””””””””””””””””””””””””””””” ““”””””””””””””””””””””l-3 Figure 1-3. Cut Sheet Paper Printable Area ““”””-”””””””””””””””””””””””””””””””” ““”””””””””””””””l-5 Figure 1-4. Fanfold Paper Printable Area .“”.””H””””.”-.”.””””””.”””””o”””””.”. s“”..””.”””.””4”””””1-6 Figure 1-5.
REV.-A LIST OF TABLES Table 1-1. Table 1-2. Table 1-3. Table 1-4. Table 1-5. O Optional Units ........ ’......., . . . . . . . . .......... ..... ”... ””..’” ““”””””””””””””””””””””””” ““” ””l-2 Optional Interface Bc~ards -..-.~..~.~..uH”-..-.uH”-o- ““~-~”~”--”~”~””fll-2 ..... Line Feed Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Cut Sheet Paper Specified Conditions -.....m.
REV.-A 1.1 FEATURES The LQ-860/1080 printerS a r e multifunction~ll, features of the these printers 24-pin printhead, impact dotmatrix printers. The main are: . Upward compatibility with the LQ-850/1050 . ~ maximum print speed of 290 cps in super draft mode at 10 CPI, of 270 Cps in draft mode at 12 CP1’ and of 90 CPS in LQ mode at 12 CPI o Direct selection of font and pitch in SelecT’YPe feature from the contrOl panel . Both 8-bit parallel and RS-232C serial interfaces . Color printing capability .
REV.-A r..,.+.-.. , Table 1-1. Optional Units I No. I Name LQ-860 o Pull tractor unit C800071 1LQ-106O ~ – ! o Pull tractor unit C800101 C806141 I Cut sheet feeder (single-bin) C806181 Cut sheet feeder (single-bin) C806151 o ; – ~ Cut sheet feeder (double-bin) C806191 Cut sheet feeder (clouble-bin) #7762 Ribbon cartridge (black) o 87763 Ribbon cartridge (color) o ff7764 Ribbon cartridge (film) o #7407 Multi font module o I - 0 ! — o Table 1-2.
REV.-A 1.2 SPECIFICATIONS This section describes the specifications for the printer without the Identity Module option. Specifications not affected by firmware (hardware specifications) are the same whether or not the Identity Module is installed. 1.2.1 Hardware Specifications Printing Method Serial, impact dot matrix Pin Configuration See Figure ‘I-2 (12x2 staggered, diameter: 0.2 mm).
REV.-A “ Do not perform reverse feeding for more than 1/6 “. “ Because accuracy of paper feed cannot be assured, do not perform reverse feeding after the paper end has been detected. b) When using pull tractor feed : “ Adjust the paper release lever at front position. “ Remove the paper tension unit and mount the pull tractor unit. o Use the paper path when a single sheet is inserted. WV I 1~1 I U~ll Iy-’~UW l-~Ull‘---”-” 11 cX,LUl ‘---A IGC7J “.
REV.-A Refer to Table 1-5. Continuous paper Table 1-5. Continuous Paper Specified Conditions LQ-860 I LQ-I 060 1 I Width I 101-254 (4.0-10.0”) I 101-408 (4.0-16.0”) I [mm] H 4 (1 original +3) at normal temperature 3 (1 original +2) at all temperature range Plain paper Quality Total Thickness 0.085-0.32 (0.0025-0.01 2“) [mm] 1 sheet” .”14-22 (52-82 g/m2) Weight [lb] 4 sheets” ””12-15 (40-58.2 g/m2) for each I Printable Area Cut sheet paper See Figure 1-3. 7.2–10.1 *1 (14.
REV.-A See Figure 1-4. Fanfold (continuous) paper - 10*1(1 6)”, 4! 101 - 254 (406) m m Printable area *2 & 4 I *2 0 0 Printable area i 0.35”, 9 mm or more + 0.35”, 9 mm or more t Printable area 0 0 0 0 0 0 0 0 0 0 0 o o L 0 XYZ i AE& 0 0 0 0 - - 0 - - - - 0 - - - - - - — . — - - - - - - - - - - - — — 0 o 0 0 0 o o 0 T T X’fz AE~ 0 o 0 0 0 0 0 0 0 0 0 0 0 0 NOTES : 1. Values in the parentheses are apply to LQ-106O. 2. 0.
REV.-A NOTES : 1. Printing of Iabes is only available at normal temperature. 2. Labels must be fanfold. 3. Labels with pressure-sensitive paper must be jointed by pasting along the dots or lines, and the total thickness must be less than or equal to 0.3 mm (0.0118”) to be printed out under conditions that must be between 5 to 35-C and 10 to 4. Examples of Iavels: 80°/0 RH. AVERY CONTINUOUS FORM LABELS AVERY MINI-LINE LABELS Lever Adjustment See Figure 1-5 and l-able 1-6. Table 1-6.
REV.-A Dimensions See Table 1-8 (Details are shown in Figures A-36 and A-39.) Weight See Table 1-8. Table 1-8. Dimensions and Weinght I I I LQ-860 Width [mm] Height [mm] 469 194 I I LQ-106O I 609 i 194 Weight [Kg] Depth [mm] II 399 I 399 I 10 I 13 1 I I I I NOTE : Excluding paper feed knob and sheet guide. Electrical Specifications See Table 1-9. Table 1-9. Electrical Specifications Voltage [V AC] 100-120 V Version 220-240 V Version 108-132 198-264 ~. .:,, “ -, 49.
REV.-A Reliability 5 million lines (excluding printhead) MCBF (MCBF . . . Mean Cycles Between Failure) MTBF LQ-860 : 4000 POFI (duty 25 LQ-106O : 6000 POI-I (duty 25 0 /0) 0 /0) (POH . . . . F)ower On Hours) Printhead life 200 milion strokes/wire Safety Approvals Safety standards UL478 (U.S.A. version) CSA22.2#f54 VDE0806 (TUV) (European version) Radio Frequency (RFI) FCC class B (U.S.A. version) Interference VDE0871 (self-certification) (Europe version) 1.2.
REV.-A Table 1-11. Printing Mode Print Pitch 10 Conden- Emphas- sed ized 0 0 1 1 12 0 x 0 1 1 15 0 x 0 1 %oporticmal Double Character Printing Speed Width Pitch [CPS] [cPI] Draft LQ 0 10 225”’ 75 80 136 1 5 113 38 40 68 0 10 113 75 80 136 1 5 56 38 40 68 o 17.1 193 129 137 233 1 8.
REV.-A * 1 : 290 CPS at super draft printing (DIP SVV 1-6 is off). NOTES : 1. Max. means the value when t:he maximum width characters are printed. 2. 3. Min. means the value when the minimum width characters are printed. “ —“ means that LQ character set is automatically selected when proportional pitch is specified. Character Matrix See Figure 1-6 and Table 1-12. (Superscript Character) Pin Nos. 17 to 24 are not used when superscript printing.
REV.-A Character Size P.: .: , See Table I-12. Table 1-12. Character Matrix and Character Size Printing Mode Face Matrix HDD Character Size H. XV. (mm) Unit ESC Sp DRAFT, 10 pitch 9 X 23 120 1.9x 3.2 120 DRAFT, 12 pitch 9 X 23 120 1.9x 3.2 120 DRAFT, 15 pitch 9X 1 6 120 1.0 X 2.3 120 DRAFT, 10 pitch, condensed ... 240 ... 120 DRAFT, 12 pitch, condensed ... 240 ... 120 LQ, 10 pitch 29X 23 360 2.0x 3.2 180 LQ. 12 pitch 29X 23 360 2.0 x3.
REV.-A 1.3 INTERFACE OVERVIEW The LQ-860/1060 has both 8-bit parallel interface and RS-232C serial interface as standard. They can be selected by DIP switches 2-3 and 2-4 respectively. (This detail of DIP switch settings, refer to Table 1-20.) 1.3.1 8-bit Parallel Interface Specifications Data Transmission Mode 8-bit pallarel Synchronization By STROB= pulse Hand Shaking By BUSY and ACKNLG (either or both) Logic Level TTL compatible Data Transmission Timing See Figure 1-7.
Table 1-13. 8-bit Parallel l/F Connector Pin Assignments Pin No. Signal Return 1/0 Description 1 STROBE 19 I Strobe pulse to read the input data. Pulse width must be more than 0.5 ,US. input data is latched after falling edge of this signal. 2 DATA1 20 I Parallel input data to the printer. 3 DATA2 21 I “HIGH” level means data “1”. 4 DATA3 22 I “LOW” level means data “O”.
REV.-A As to the wiring for the interface, be sure to use a twisted-pair cable for each signal and never fail to connect the return side. To prevent noise, cables should be shielded and connected to the chassis of the host computer and the printer. Table 1-14.
REV.-A 1.3.2 RS-232C Serial Interface Specifications Data Transmission Mode RS-232C serial Synchronization Asynchronous Handshaking (By DTR (FIEV) signal or X-ON/OFF Protocol (Refer to Table 1-15 and Figure 1-9.) Table 1-15. Serial Interface Handshaking DTR Signal X-ON/OFF protocol Description MARK X-OFF (DC3/13H) When the number of bytes remaining in the input buffer reaches 256 or less, the signal level goes to MARK, or and X-OFF code is sent to the host computer.
REV.-A Data Transmission Timing See Figure 1-10. ‘T” ~ s [ +V) DTR ( – VI ( + v] RXD ( -v) r - - - - - - - - - - - - - - - - - - - - y :!S!12131:15-FF::; Data Bit P~rlty Start Elit DTR Handshake ( + v] g:F[<[[[iFEE3 RXD Data Elit [ -v) ,+apB,+/— ‘T “ P\ri~y Start Blt + -- -- i~ 4 * -- -- ik ( + v) - - - [ - - [ if 4+ TXD ( -v] D a t a Bit Bit (X-OFF) Start – . - - [ - -[ IF’ 4+ S;;;t D~t:OB;t x-ON/X-OFF Protocol NOTES : 1. The value of “T” varies according to the input data. 2.
REV.-A Table 1-16. RS-232C Serial l/F Connector Pin Assignments Pin No. Signal Dir. 2 TXD o 20 DTR o Description Transmit data. Indicates when printer is ready to receive data. “MARK” level indictes printer is not ready to receive data. 11 REV (=2nd RTS) o Same as DTR. 3 RXD I Receive data. 7 SIGNAL GND – Signal (Logic) ground level. 1 CHASSIS GND – Printer chassis ground. NOTE : “Direction” of signal flow is as viewed from the printer. f ‘:, .
REV.-A 1.4 DIP SWITCH AND JUMPER SEITINGS This section describes DIP switch settings and jumper settings on the JUNMM board. 1.4.1 DIP Switch Settings The DIP switches that users can set are SW”I and SW2. These switches are positioned at the left side of the control panel, and have the functions as :>hown in Tables 1-17 through 1-21, (note that the status of the DIP switches are read only when the printer power on or an INIT signal is input.) Table “I-17. DIP Switch 1 Settings OFF ON Function DIP SW.
REV.-A q Table 1-19. DIP Switch 2 Settings ‘g Function ON OFF Factory Setting 2-1 Page length 12” 11 “ OFF 2-2 1“ skip-over perforation Valid Invalid OFF 2-3 Interface selection DIP SW. OFF See Table 1-20. OFF 2-4 2-5 OFF See Table 1-21. Baud rate selecton OFF 2-6 2-7 Auto fear-off mode Valid Invalid OFF 2-8 Auto LF Valid Invalid OFF Table 1-20. Interface Selection Table 1-21. Baud Rate Selection -%.
REV.-A 1.4.2 Jumper Settings Table 1-22 shows the jumper settings. Table 1-22. Jumper Settings No. / ) Location Type 27256 27512 6A 512 256 JI 4M/2M-BIT IM-BIT 512K/256K-BIT 3A ROM MASK-ROM J2 B4 +5 +5 J3 RD A16 RD 4M/2M-BIT 1 M-BIT’ (CG1) 512K/256K-BIT 256K-BIT ROM RAM +5 MASK-ROM J4 B4 +5 +5 J5 RD A16 RD RD J6 B1 B1 B2 WR SLCT-IN inable SLCT-IN disable SLIN GND LQ-860 LQ-106O J8 Close Open J9 Open Open J7 NOTE : Bold indicates the factotw settings.
REV.-A 1.5 SELF-TEST OPERATION The LQ-860/1060 printer has the following self-test operation. The control ROM version No. and the DIP switch settings also printout when the self-test is performed. Table 1-23 lists the self-test operating instructions and Figure 1-12 shows the self-test printing. Table 1-23. Self-Test Operation Type-face Draft ,- Lu stop Start Turn the power ON while Push the ON LINE switch, and turn the pressing the LINE FEED switch. power OFF.
REV.-A 1.6 HEXADECIMAL DUMP FUNCTION In hexadecimal dump mode, the printer prints out the data it receives in hexadecimal format. The printer prints a column of 16 hexadecimal values, followed by a column containing the 16 corresponding ASCII characters. If there is no corresponding printable character for a value (e.g., a control code, such as a carriage return or line feed), a period (.) is printed in the ASCII column in the position of the code.
REV.-A #-:;,, x, 1.7 PRINTER INITIALIZATION There are two initialization methods: hardware initialization and software initialization. 1.7.1 Hardware Initialization This type of initialization occurs when printer power is turned on or when the printer receives the INIT signal from the host via the 8-bit parallel interface. When printer is initialized in this way, it perfc)rms the following actions : . Initializes printer mechanism - Clears downloaded character set . Clears the input data buffer .
REV.-A REV.-A 1.8 BUZZER OPERATION AND ERROR CONDITIONS This section describes the buzzer operation and error conditions of the printer. 1.8.1 Buzzer Opeartion The buzzer ring as follows: ● When a BEL code is sent to the printer, the buzzer sounds for 0.5 seconds ● When an error has occured . Carriage mechanism trouble o Color select mechanism trouble . C.G. ROM error Sounds 5 times (rings for 0.5 sescmds with 0.5 seconds interval.) . Paper end Sounds 3 times (rings for 0.1 seccmds with 0.
REV.-A 1.9 MAIN COMPONENTS The LQ-860/1060 printer includes the following major subassemblies: . Model-5810/5860 printer machanism “ JUNMM board (main board) . MONPS/MONPSE board (power supply board, 120V and 220/240V versions) “ Control panel (JUNPNL-W board) Figure 1-14 shows the LQ-860/1060 component locations. MONPS/MONPSE Board JUNMM Board Fan Unit \ ‘%.: , ’ I Control Panel Mlodel-5810 PI‘inter Mechanism LQ-860 ,. ., ~: Model-5860 Printer Mechanism . LQ-106O Figure 1-14.
REV.-A 1.9.1 Printer Mechanism This section describes features and paper feed operations of the printermachanism. 1.9.1.1 Printer Mechanism Features The printer mechanism is composed of three stepper motorsused in carriage move, paper feed, and color select/ribbon feed, a 24-pin printhead, five sensors (home position, paper end, friction/traCtOr, platen gap, and color position sensors), and metal frames. Model-5810 Model-5860 Figure 1-15.
REV.-A f!,, 1.9.1.2 Paper Feed Operations Paper Loading and Paper Ejection The paper release lever has a disengage capability for the optional pull tractor unit’s drive mechanism. Therefore, these printers provide some improved paper handling functions that can be performed by using a combination of the paper release lever and LOAD/EJECT switch on the control panel.
REV.-A 1.9.2 JUNMM Board (Main Board) Figure 1-16 shows the JUNMM board, which contains a 8-bit one chip CPU ~PD78213 (4B) to control the operation of the printer. Driver circuits for the motors, sensors, and printhead are also included on this board. Other main ICS on the JUNMM board are: Gate Array IC “ EO5A1OAA (8B) .............. Memory management unit (MMU) IC o E05A24GA (5A) ............&bit parallel I/F’, port expansion IC “ E05A02LA (2A) ............ ”..
REV.-A 1.9.3 MONPS/MONPSE Board (Power Supply Circuit Board) The power supply circuit board is located on one of two boards, the MONPS for 120 V AC operation and the MONPSE for 220/240 V operation. The basic construction of the two board is the same: each board contains a power switch, fuses, line filter circuit, and switching regulator circuit. Compactness of the circuitly is made possible by use of a DC-to-13C converter. .{ ‘“ ... , Figure 1-17. MONPS Board !. ~. .
REV.-A 1.9.4 Control Panel [n the control panel, seven switches and seventeen LEDs, as shown in Figure 1-18. The functions of the switches and indicators are given immediately below the illustration. Figure 1-18. Control Panel ON LINE Switch This switch toggles the printer between ON-LINE and OFF-LINE modes. The printer is automatically set to ON-LINE mode and becomes ready at power on. If the printer is set to OFF-LINE mode, printing is stopped and the printer becomes BUSY.
REV.-A PITCH Switch Pressing this switch selects the character pitch, and continuing to press the switch for more than 0.5 seconds select the next character pitch, seq~lencially. The PITCH indicator lights beside the currently selected character pitch to confirm its status. NOTE : Settings by FONT and PITCH switches are stored as defaults. So that the last FONT, PITCH settings becomes effective when the printer is initialized. TEAR OFF Switch Advance the paper to the tear-off position.
REV.-A CHAPTER 2 OPERATING PRINCIPLES ...... 2.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1 . 2.1.1 Connector Descriptions . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . .●.. . . . . . . . . . . . . . . . . . . . . . . .2-1 . 2.1.2 Printer Mechanism Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REV.-A ... 2.3.3.2 Switch Status Read Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43 .. 2.3.4 State Detection and Sensor Signal Input Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44 .. 2.3.4.1 Reference Voltage Supply Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-45 .. 2.3.4.2 35 V Line Voltage Detection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-46 ...
REV.-A LIST OF FIGURES Figure 2-1. ... Printer Mechanism Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2 Figure 2-2. .... Printing Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3 Figure 2-3. .. Relationship Between PG Sensor and Platen Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Figure 2-4. ...
REV.-A Figure 2-33. ... Handshaking with DTR Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-38 Figure 2-34. ... Handshaking with X-ON/X-OFF Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38 Figure 2-35. ... RS-232C Serial Interface Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-39 Figure 2-36. ..
REV.-A LIST OF TABLES Table 2-1. .... Printhead Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4 Table 2-2. PG Sensor Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .. . . . . . . . . . . . . . . . . . . . .2. - 4 Table 2-3. .. Carriage Movement Mechanism Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7 Table 2-4. ....
REV.-A Table 2-33. Relationship Paper Release Lever Position and P35 Voltage”””””””””””””-”2 -54 Table 2-34. Relationship Printhead Coil Drive Cycle and Print Mode o“””oo””o”s”oo”*”.0”02-56 Table 2-35. Relationship E05A24CiA Terminal States and CR Motor Coil Current* ””~2-59 Table 2-36. Relationship CR Motor Speed and Phase Switching System ”””””””””* *””. ””2-64 Table 2-37. ... Various PF Motor Control Relationships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REV.-A 2.1 GENERAL This chapter will describe features and operations of the Model-5810/5860 Printer mechanism! MONpS/ MONPSE power circuit board, JUNMM control circuit board, and control panel. In this section, the following abbreviations ate used : CR : Carriage CS: Color select F/T: Friction/tractor HP: Home position PE : Paper end PF: Paper feed PG : Platen gap RF: Ribbon feed 2.1.1 Connector Descriptions Figure A-26 shows the connection between the JUNMM board and other units.
REV.-A . f’ 2.1.2 Printer Mechanism Operations The Model-5810/5860 is a serial printer mechanism equipped with a 24-pin impact dot printhead. This mechanism has various new features to reduce manual paper handling. A block diagram is shown in Figure 2-1. I 35V t + Printing Mechanism ei” ~ ~5v 35” @ Driver Circuit CR Motor Color Select Ribbon Feed Mechanism @ 7.?. ,,/. I @CR HP S.,]sor @ ,.,.- I Carriage Mechanism I I I I I I I I .
REV.-A 2.1.2.1 Printing Mechanism Figure 2-2 shows the printing mechanism and Table 2-1 lists theprinthead specifications. The printhead has 24 wires arranged in twcl staggered lines (12 wires for each line). These wires are connected to their own wire drive coils. The basic printing operations are as follows: 1.
REV.-A Table 2-1. Printhead Specifications Item Remarks Description Type Impact dot Pin Diameter 0.2mm Refer to Section 1.2. 1. Pin Configuration 12 line x 2 COI. Dot Pitch 1 /180” Drive Voltage 35 VDC * 1 00/0 Coil Resistance 29 ohmst2 ohms 25°C, for one coil Drive Frequency Drive Mode Normal mode Copy mode Normal Paper thickness* to : 0.06mm StOS0.25mm copy Paper thichness” tl : 0.25mm Stl SO.32mm Built-in ,— . - . - - . detected by the PG sensor (Heter to I at)le Z-Z.).
REV.-A The printhead is equipped with a thermistor as an element which continuously monitors the printhead temperature to prevent the head driving coil in the printhead from being burnt or deteriorated when the printhead temperature rises abnormally due to continuous printing. The printhead temperature monitored by the thermistor is converted into a voltage signal, and is fed back to the control circuit. According to the result, the printhead protection is performed. (Refer to Section 2.3.4.4.
REV.-A 2.1.2.2 Carriage Movement Mechanism Figure 2-4 shows the carriage movement mechanism and Table 2-3 lists its specifications. The printhead is mounted on the carriage, and the entire unit is supported by the two carriage guide shafts. The carriage is fixed to the timing belt on one side and is moved when the CR motor drives the timing belt. Printing is accomplished by the combination of printhead and carriage mechanism operations.
REV.-A Table 2-3. Carriage Movement Mechanism Specifications =:= (MIN.) Refer to Table Refer to Table 2-5. 2-4. Table 2-4. CR Motor Specifications Type Coil Remarks Description Item I Four-phase 200-pole HB type I Rsisitance I 2.
REV.-A 2.1.2.3 Ribbon Feed/Color Select Mechanism The mechanism consists of a ribbon feed mechanism which feeds up the ink ribbon of the ribbon cartridge and the color select mechanism which switches colors of the color ink ribbon. Switching between the above two mechanisms is performed in accordance with the rotational direction of the CS/RF motor. . When the CS/RF motor rotates in the foiward direction (C. W.) : Color select mechanism . When the CS/RF motor rotates in the reverse direction (C. C. W.
REV.-A , Ribbon Breaking Spring Inked Ribbon – \ Cartridge c ~ + ‘, & h Ribbon Feed Roller Ribbon PressureRoller Planetary Ribbon Drive Gear 7 Motor Ribbon Feed Transmission Gear \ Figure 2-5I. Ribbon Feed Mechanism The ribbon feed mechanism is mounted on the carriage. As the CS/RF motor rotates counterclockwise (C. C.W.), the ribbon drive pulley rotates to feed the ribbon (Refer to see Table 2-8). Table 2-8. Ribbon Feed Gear Train I CS/RF Motor Rotation I c. c. w.
REV.-A Color Select Mechanism If the color ribbon cartridge is mounted on the carriage, the color select mechanism operates to allow seven-color printing. Table 2-9 shows the specifications of the color ribbon select mechanism. Table 2-9. Coler Select Mechanism Specifications Motor Driving Method Ribbon Shift Direction Black*2 CS/RF motor ; Crank gear Refer to transmission Color Select*’ Refer to Table 2-10. J Cyan Table 2-7.
REV.-A 1. Outline The color-inked ribbon is divided into four strips as shown in Figure 2-6. One strip can be selected by vertically moving the color ribbon cartridge using point @ of the carriage as a fulcrum. 0$ Color Ribbon Cartridge / ;;1 — -_— . -— [Selected Color] [deg] 6.075 Yellow 2.025 ..,. Magenta -— Printing Point Carriage P’?~ ——-Q-— “- ~:’’:~:”’:::: Down Figure 2-6. Color Ribbon Strip Selection 2. Operations Figure 2-7 shows the color select mechanism.
REV.-A Color Ribbon Cartridge Carriage Black Ribbon Cartridge 1 E%ck — Cyan ~a9enta yellow b) When a black ribbon is used a) When a color ribbon is used Ribbon Feed Transmi .,. .. , .. +..,, . Ribbon Feed Planetary ever Ribbon Feed Transmission Gear am r CSIRF M II 1 ‘ — . — B –— C — M— ‘f— —.—’—’— /)c - CS Reduction Gear Cross Section c) Gear Train Figure 2-7. Color Select Mechanism 2-12 - . . .. $. ... . ~ .., ,.
REV.-A 2.1.2.4 Paper Feed Mechanism The PF motor drives the platen and tractor via the paper feed transmission gear, and feeds the paper. If the paper runs out, the PE sensor detects it. The kind of the paper being used (cut sheet or fan-fold paper) is detected by the F/T sensor (interlocked with the paper release lever). Table 2-13. Paper Feed Mechanism Specifications Motor Dirving Method 1 Paper Feeding per Step Sensor l/360r/step IPESensor PF motor ; Gear Refer to transmission Table 2-14.
REV.-A Push tractor feeding and friction feeding are ciescribed below. The paper feeding methods consist of push tri~ctor feeding (for continuous paper) and friction feeding (for cut sheet paper). Refer to Table 2-17. Table 2-17.
REV.-A Friction Feeding Figure 2-8 shows the friction feed system paper feed mechanism. Insert the paper from the paper entrance with, the paper release lever being turned backwards. The paper is pushed to the platen by the paper feed roller, and is pulled into the printer due to friction generated between the paper and the platen. At this time, the tractor gear is released from the tractor transmission gear as the paper release lever shift. Therefore, no power is conveyed to the push tractor.
REV.-A Push Tractor Feeding Figure 2-9 shows the push tractor feed system paper feed mechanism. This mechanism feeds paper when the PF rector is driven with the paper release lever being turned center and the fan-fold paper being set at the tractor unit. Paper Release Lever (center) Tractor Transmission Gear \ Paper Tension Roller Gear \ ---35? Paper Tension Roller Transmission Gear r % ’ lb >- I -7/% ,.
REV.-A 2.2 POWER SUPPLY CIRCUIT OPERATION (MONPS/MONPSE board) The DC voltages required to operate the mechanisms and control circuits are supplied from the supply board in this unit. There are two kinds of power supply boards, the MONPS board for 100 V or 120 V operation and the MONPSE board for 220 V or 240 V operation. Refer to Table 2-18. Since the MONPS board has almost the same structure as the MONPSE board, this section will describe the MONPS board. Table 2.,18. Power Supply Voltages E= 2.2.
REV.-A ~“!>., Y ,.. Figure 2-10 shows a block diagram of the power supPlY circuit. External noise on the AC line is first attenuated by the input filter circuit. Then the AC voltage is converted to DC by the full-wave rectifier, and is smoothed by the smoothing circuit. The surge-suppression circuit suppresses surge current that flows when the power is turned on.
REV.-A 2.2.2 Input Filter Circuit Figure 2-11 shows the input filter circuit. The filter circuit attenuates external noise and inhibits noise generated in the printer from going out over t:he AC line. The coils and capacitors employed in this filter are able to handle ‘fluctuations of the AC input line. Frame ground (F. G.) is connected between C4 and C5, which handle leakage current from the frame to the AC line. b * t% A C IN C3 L-——. TO DB I J Figure 2-11. Input Filter Circuit 2.2.
REV.-A 2.2.4 Main Switching Circuit This circuit uses a ringing choke converter (RCC) AC input switching power circuit. This system has the merits of using fewer parts and a smaller trarlsformer, and is often used when a smaller power supply is required. 2.2.4.1 Circuit Operation Figure 2-14 shows the main switching circuit. When the power is applied, drive current Is flows to the base of switching transistor QI via starting resistor R14.
cc REV.-A o N N ,n 1= u) cc -b co’ n4 2 %1-- I Figure 2!-14.
REV.-A f?” -.. l(A), Icof Q1 o h_P ( ~ A ) Icof Q1 - . —._— — k=i’L low I__._z t 10+ o E-== t I t on I t off I ~ T P ( L I =ton +t.aff) I Figure 2-16. RCC System Switching Operation Figure 2-15. Waveforms at Primary and Secondary Sides of T1 .+“. ““’” ,.
REV.-A 2.2.5 +35 V Voltage Regurator Circuit The back electromotive described in Section 2.2.4.1 causes diode D20 on the secondary side of transformer TI to conduct, which supplies power. Consequently, the amount of energy stored by the transformer during a unit period of time becomes equal to the power output. That is: p = + ”L1”(*”ton)2”f=v””t” ‘::;witchingfrequency ton : on-time of Q1 O f Q1 The output voltage is detected by R22 and f?23.
REV.-A 2.2.6 Over Voltage Protection Circuit As described in 2.2.5, the power supply circuit of this unit not only uses the voltage regulator circuit to stabilize the output voltage (VO) and provide feedback to the switching circuit, but it also contains an over voltage protection circuit to protect against malfunctions of the voltage regulator circuit. Figure 2-18 shows the over voltage protection circuit.
REV.-A 2.2.7 +5 V Switching Regulator Circuit Figure 2-19 shows the +5 VDC switching regulator. This circuit employs a hybrid type switching regulator IC STR20005 (IC20) which consists of a voltage regulator circuit along with coilL20 and capacitor C25 at the external output section.
REV.-A IV) , E!%‘:‘:;;“ +of CMP , ‘of ~ ’ tI I 3 3JI s ; 1; CMP o [v] Collecfor of Trl o t— Figure 2-20. CMP input and Output Voltage Comparison 2.2.7.3 Soft Start When power is supplied capacitor Cl, connected between the CMP negative side and GND, increases the Tri output at time constant R3 x C2 so that the on-time of Trl gradually becomes longer (Refer to Figure 2-21). This circuit smoothes the rising of output voltage Vo and prevents overshoot.
REV.-A 2.2.8 ~12 V Half-Wave Rectifier-Smoothing Circuit The power from this circuit is mainly supplied to the RS-232C Interface on the optional interface board. Both the +12 V and –12 V lines have their own half-wave rectifier circuits. The smoothing circuits cosist of capacitors C23 and C24, and include dummy resistors R27 and R28 which control the rise of voltage when the +12 V lines have no load, as well as current limiting resistors R25 and R26. (Refer to Figure 2-22.
REV.-A 2.3 CONTROL CIRCUIT BOARD (JUNMM Board) Figure 2-23 shows a block diagram of the JUNMM board. The printer employs 8-bit one-chip CPU .cPD78213 of which functions and performance are better than those of conventional 8-bit one-chip CPU ,uPD781O, to control all of the printer operaticm. The printer is driven with a 9.83 MHz clock. Moreover, various gate array ICS and hybrid ICS are employed to lighten load to the CPU, so that the CPU circuit can be simplified and data can be processed at high speed.
REV.-A 2.3.1 Reset Circuit Figure 2-24 shows the reset circuit. After being input to the E05AIOAA gate array (MMU :8B), the reset signal resets the gate array, then is sent out to the other devices. Reset operation (hardware reset) is performed when: ● The printer power is turned on or off. ●A identity/font module is installed or removed with the power on. SLOTB P ,.7QA.77 r“m= CPU (46) JUNMM BOARD of E05A24GA (116) SLOTA # RESET of EXTERNAL CN2 ) h IV THLD Figure 2-24. Reset Circuit 2.3.1.
REV.-A 2.3.1.2 Power ON/OFF Reset Figure 2-24 shows the reset circuit and Figure 2-26 shows the waveform the this operation. When the power is switched on and Vx rises, voltage is applied to the integration circuit (composed of R47, C23, D32). The voltage at C23 increases and when VTHLD reaches (Schmitt trigger), and the reset circuit in V P the output switches from low to high the MMU sets the ROUT signal high (Figure 2-26, TRI).
REV.-A 2.3.1.3 Font/Identity Module Installation and Removal Reset Figure 2-24 shows the reset circuit and Figure 2-27 shows the module installed/removed reset timin9. The font and identity modules should not be installed or removed while the power is on. If this is done, the ROUT signal must be set low to prevent a JIJNMM board circuit malfunction. After reset, the CPU starts execution and selnds a RD signal to the memory devices.
REV.-A Table 2-20. State of Module 1 1 , I %!!W E:= H H ‘“’stay *’L.H.-.d =“O’s’”’ H H 4“” %.*..,.
REV.-A 2.3.1.4 ST-RAM (7A) Battery Backup Circuil The ST-RAM (7A) employs a lithium battery (3.00 to 3.35 VDC) for backup, and is used to maintain the initial data for the printer mechanism and settings for the control panel when the printer power is turned off. Figure 2-28 shows the ST-RAM (7A) battery backup circuit, and Table 2-21 shows the ST-RAM conditions when the power is turned on or off. mBT1 3 C1:L-F--Z$ H J R58 Q42 R59. / Vss (7A) Figure 2-28.
REV.-A #....l ,%:.. 1 2.3.2 Interface --, This printer has both an 8-bit parallel interface and an RS-232C serial interface. 2.3.2.1 8-Bit Parallel Interface Operating Principles Figure 2-29 shows the 8-bit parallel interface data transmission timing. Data is transferred between a host computer and the printer using the following sequence: BUSY fl[a) ACKNLG /4 FZ!3i= DATA )) [( STROBE [( Figure 2-29.
REV.-A 8-bit Parallel Inteface Circuit Figure 2-30 shows the 8-bit parallel interface circuit. Address mapping. for the E05A24GA (llB) is performed by the CPU via the MMU (8B). The gate array IC E05A24GA (llB) is employed to simplify the control required from the CPU. ● Refer to Appendix A.1.1.7 for the details of the E05A24GA.
f-.,,. : 1 I 7 1 Set default values on DC1 is sent. GI’A (llB). I_ I 4 I 1 I Set initial values on STROBE is sent. control terminals. I f--=--n — ● &bit data is latched and BUSY is sent. ● IBF goes low and CPU recognize the data is input. — ● CPU read the data. 5= ● IBF goes high. $ .-- q>,. 1 J CPU process the data. ... ~,:’., . .. . . w I ] ACKNLG goes high. I I I o A Circuit Operation Figure 2-31.
REV.-A . INIT goes low. ● ITO goes low and CPU (4B) recognizes host computer sends INIT signal. 1 CPU performs initialize oper -ation. (Refer to section 1.7.) CPU write the data G/A [ (llB) to change ~ from IOW to high. Figure 2-32. INIT Signal Proseccing Table 2-22. 8-Bit Parallel l/F Signals BUSY READY/ERROR PE — 1 H Disable Gose high, when .— STROSE pulse is I PRINTE HOST (acknowledge) ON-LINE READY OFF-LINE NOT READY sent from host. L L H An error has occurred.
REV.-A 2.3.2.2 RC-232C Serial Interface Operating Principles The two handshaking methods are as follows : 1. Status flag . . . DTR (REV) signal The DTR signal is set to SPACE (+V) when the printer can accept data and is set to MARK (–V) when the printer is in an error state or when the empty area in the input buffer reaches 256 bytes or less. In this way, handshaking with the host is accomplished by setting the DTR signal to either SPACE or MARK. (Refer to Figure 2-33.) F-i [ + v) __--.
REV.-A Circuit Description Figure 2-35 shows the RS-232C serial interface circuit. Data transmitted from the host computer is converted from EIA (+3 to +27 V, –3 to –27’ V) to TTL O V, +5 V voltage levels by the RS-232C line driver 75189 (1OA). The converted data is sent to the CPU via buffers in the E05A24GA (llB). On the contrary, data transmitted from the CPU is sent to the 75188 (9A), converted from TTL to EIA voltage levels, and transmitted to the host computer.
f’:! .. I Serial data are sent on RXD. I I line data buffer vacant area reach 256 byte or 1 .BUSY’”H” (DTR=MARK). -Send X-OFF (13H). [ I t- line data buffer vacant Figure 2-36. RS-232C Serial Interface Circuit Operation 4 From CPU INITIALIZE 1A OPERATION P BUSY [ ‘-+~ k’st~::-+;DA SPACE ~~~~ RXD MARK [ INPUT BUFFER VACANT AREA M X-OFF TA ----: ;; ———————+ * !+ S256byte Z528 byte t 8K byte Figure 2-37.
REV.-A 2.3.3 Control Panel Interface Circuit Figure 2-38 shows the control panel interface circuit. This circuit is mainly divided into the following two blocks: . LED drive section ● Switch status read section Descriptions of the above sections will now be given. ● Refer to Figure A-33 for the detailed circ:uits on the JUNPNL board.
,-c.,.,\ REV.-A 2.3.3.1 LED Drive Section Each LED is controlled and driven by port expander driver IC MSM58371, which includes a 12-bit shift register and LED drivers. Figure 2-39 shows the data transfer timing fc,r the MSM58371, and Figure 2-40 shows a block diagram of the MSM58371. .— The MSM58371 converts 12-bit serial data (CITLED) from the CPU into parallel data using a synchronous clock (CKLED) and trigger signal (LDLED), then outputs the data to the output ports (01 to 012).
REV.-A 2.3.3.2 Switch Status Read Section The state of each switch is read periodically by the CPU through five ports (P67, P26, P27, P74, and P75). When the state of a switch is found to be different from the previous value, the new value is transferred to the LED drive section as data to rewrite the switch status.
REV.-A 2.3.4 State Detection and Sensor Signal Input Circuits This section describes the state detection circuits on the JUNMM board and sensor signal input circuits. Table 2-24 lists the state detection circuits on the JUNMM board. Table 2-25 lists the sensors connected to the JUNMM board. Table 2-24. State Detection Circuits CPU Signal Reading Port Description Name 35V Line Voltage Monitors the 35 V Detection Circuit line voltage VR1 Reading Circuit Reference Section AN1 Reads the correct- 2.
REV.-A 2.3.4.1 Reference Voltage Supply Circuit Figure 2-41 shows the circuit that supplies reference voltage AVREF (4.75 VDC) to the A/D conve~er in the CPU. In this circuit, programmable shunt a regulator TL431 (5B) is used to output the reference voltage. +12 R30 +5 D30 AVREF 51 Vr~f C17 R29 C16 + CPU (4B) @ / 0+ :(5B) G R28 ! VG A AVss 5 0 b:‘--’ c J 77$- 0) : Ifef @ : 1. Figure 2-41.
REV.-A 2.3.4.2 35 V Line Voltage Detection Circuit As shown in Figure 2-42, this circuit detects t:he voltage on the 35 V line. The detected voltage is divided by R51 and R52, and the voltage at point (~ is input to the AN1 terminal of the CPU. AVSS t 50 GP /H Figure 2-42. 35 V Line Voltage Detection Circuit in Figure 2-43 and Table 2-26, if the +35 V line drops to +31.7 V or less during high-duty cycle printing, the printer is protected as follows: 1. Printing is performed at normal speed. 2.
REV.-A 2.3.4.3 VR11VR2 Reading Circuit Figure 2-44 shows the VR1/VR2 reading circuit. The values (voltages) set by VRI and VR2 are used to control the corrections for bidirectional printing in the Draft and LQ modes. VR1 is used for bidirectional printing in the LCI mode, and VR2 is used for bidirectional printing in the Draft mode. Vr~f \ VR2 AN2 5 5 CPU (4B) * AN:3 5 4 AVS3 5 0 / NOTE: Refer to Section 4.3.3.1 for adjustment of VR1 and VR2. Relationship Figure 2-44.
REV.-A 2.3.4.4 Printhead Temperature Detection Circuit Figure 2-45 shows the printhead temperature detection circuit. This circuit detects the temperature using a thermistor in the printhead. Vret R27 R26 57 ANO CN8 I I 116 (- PRINTHEAD I THERMISTOR c8 ; ,;: C14 r} CPU (4B) [15 I 50 AVSS 1 I \ J ,. . . . Figure 2-45. Printhead Temperature Detection Circuit The temperature of the printhead rises as the solenoids in the printhead continue to be driven.
REV.-A Table 2-28 shows the relationship between the upper/lower limit values for printhead temperature, and the voltage at the ANO terminal of the CPU. Table 2-28.
REV.-A 2.3.4.5 CR HP Sensor Circuit Figure 2-47 shows the CR HP sensor circuit, This circuit determines the home position of the carriage. CARRIAGE FLAG CN1O 11 r ---- ~ - - - — - ~ ---- - ~ ; R49 ! 1 1 1A IY +5 R42 R35 38 P22 IY’ CPU (4B) 2’ IP”3-: L ---- ~“~Kti ~ -__–- ~ __.. _ _ ~ [ Figure 2-47. CR HP Sensor Circuit Table 2-29 shows the relaticmship between the carriage flag and the voltage at the P22 terminal of the CPU Table 2-29.
REV.-A 2.3.4.6 CS Sensor Circuit Figure 2-46 shows the CS sensor circuit. When the color printing is executed, the circuit detects the color home position (black) and each color ribbon section (cyan, magenta, and yellow) of the color ribbon. CS DRIVE CAM FLAG CPU (4B) Figure 2-48. CS Sensor Circuit Table 2-30 shows the relationship between the CS drive cam flag and the voltage at the P23 terminal of the CPU. Table 2-30.
REV.-A 2.3.4.7 PG Sensor Circuit Figure 2-49 shows the PG sensor circuit. The circuit detects the position (platen gap) of the head adjustment lever of the printer mechanism, and selects either normal or COPY mode at printing. +5 1 F’G I ““sO’ L_L, / . .~, -..- Figure 2-49. PG Sensor Circuit Table 2-31 shows the relationship between the head adjustment lever position and the voltage at the P37 terminal of the CPU. Table 2-31.
REV.-A 2.3.4.8 PE Sensor Circuit Figure 2-50 shows the PE sensor circuit. This circuit determines whether paper exists in the printer or not. / CN1l 1 R43 R36 37 ~ P21 :4:: I PE \ I I I A Figure 2-50. PE Sensor Circuit Table 2-32 shows the relationship between the paper state and the voltage at the P21 terminal of the CPU. . Table 2-32.
REV.-A 2.3.4.9 FIT Sensor Circuit Figure 2-51 shows the F/T sensor circuit. The circuit detects the paPer release lever position (paper feed system) of the printer mechanism. / CN15 ! R79 R37 f : 59 ~35 CPU (4B) FIT’ \ I I 7)7 Figure 2-51. F/T Sensor Circuit Table 2-33 shows the relationship between the paper release lever position and signals at the CPU port P35. Table 2-33.
REV.-A 2.3.5 Printhead Control and Drive Circuit Figure 2-52 shows the printhead control/driv~? circuit block diagram. The CPU (4B) transmits print data for one line in three steps (8-bit data x 3 =24 dots) and stores the data in control gate array E05A02LA (2A), then CP[J outputs the printhead trigger pulse (HPW) to the E05A02LA. When the HPW signal is low, the drive transisi:ors which drive the printhead coils are activated, and printing is executed.
REV. -A #-,!, *., , 2.3.5.1 Relationship Between Paper Thickness and Print Mode a. The CPU detects a platen gap value (head adjustment lever position : Ist to 3rd position/4th to 8th position) via the F/T sensor. With this value, the CPU printing energy controls the printhead drive cycle and drive pulse so that will be appropriate. (See Table 2-34.) Table 2-34.
REV.-A 2.3.5.2 Relationship Between Printhead Drive Pulse Width and +35 V Line Voltage As described in Section 2.3.5.1, this printer has two kinds of printhead drive pulse widths depending on the head adjustment lever position. Figure 2-53 shows the relationship between the printhead drive pulse width and +35 V line voltage.
REV.-A g:.:,, 2.3.6 CR Motor Control and Drive Circuit Figure 2-55 shows the CR motor controlldrive circuit block diagram. The CR motor is controlled by the CPU (46). Phase switching signals are output from the CPU ports (POO to P03) which have the real time output function. The phase switching signal output from the CF)U is sent to the constant current drive IC (1A). In order to drive the carriage motor at constant speed, the IC inputs the reference voltage which corresponds to the motor speed.
REV.-A 2.3.6.1 Reference Voltage Generation Circ!uit Figure 2-56 shows the reference voltage generation circuit and Table 2-35 shows the relationship between each terminal state of the gate array E05A24GA (IIB) and CR motor coil current. This circuit changes the voltage applied to ‘the RX terminal of the CR motor driver IC S1730(5A (1A) using the combination of R5, R6, R7, and R8 so thi~t the current limiting value for the current flowing to a coil of the CR motor varies.
REV.-A 2.3.6.2 CR Motor Drive Circuit Figure 2-57 shows the CR motor drive circuit. Figure 2-58 shows the CR motor drive circuit signal timing. This circuit employs unipolar stepper motor driver IC S17300A (1A), and drives the CR motor using constant current chopper type control. The chopper type control is performed by a separately-excited system.
REV.-A POO (4B : Pin 62) 5 V/DIV. OA (1A: Pin 5) 50 V/DIV. RSA (1A: Pin 3) 1 V/DIV. 0.5 ms/DIV. NOTE: In the Draft, normal self test mode: Figure 2-58.
REV.-A The blocks are as follows. Phase Drivers (A to D) These drivers are turned on and off upon receiving the drive pulses POO to P03 from the CPU (4B) via inverter (l B). When the drive pulse is LOW, the corresponding phase driver turns on. CMPl and CMP2 CMP1 or CMP2 compares the reference voltage at the minus terminal with the voltage applied to the plus terminal, which is from the current detection resistor (R96 or R2).
REV.-A 2.3.6.3 CR Motor Control CR Motor Phase Switching System The CR motor is a 4-phase stepper motor, and each phase is controlled by the corresponding terminal (POO to P03) of the CPU (4B) via the inverter (16). Two phase switching systems are used; 2-2 phase switching and 1-2 phase switching. One step of the 2-2 phase switching system corresponds to two steps of the 1-2 system. Figure 2-59 shows the CR motor phase switching timing.
REV. -A .:-’. , Table 2-36. Relationship CR Motor Speed and Phase Switching System Driving State Speed No. o Phase Switching System Carriage Speed [PPS] Cycle [~s/step] CR Motor Constant Speed, Coil Current Deceleration [A/COiIl I A c c e l e r a t i o n NOTE : The carriage speed ar Holding 1 2 3 4 5 1-2 2-2 2-2 3600 2700 1800 1350 900 600 278 370 556 741 1111 1667 0.8 0.8 0.6 0.6 0.6 0.6 1.2 1.2 0.8 0.6 0.6 0.6 — 0.
REV.-A Carriage Motion Area and Speed Control The carriage motion area is shown in Figure 2-60. This is mainly divided into three areas: 1) acceleration area, 2) printable area, and 3) deceleration area. The printer has six carriage speeds (Refer to Table 2-36.). Printable area Acceleration area 48(’ I I 120 I I 8“ (13.6”)* Deceleration area ~ I I 120 --i I I I I I I : Speed I I I I I * 48 Pulse 960 pulse (1,632 Pulse)* H:P. ~ * : ( ) means LQ-106O. Figure 2-60. Carriage Motion Area 1.
REV.-A Speed O — Speed 1 — Speed 2 — Speed 3 ———— Speed 4 — %eed 5 — v Printable : 1 High Spaed High Speed Skip ntable 4rea - .1- 4 Hiah Soeed Skip Control Range I -1 min. 8CH Non-printable Area min. 9CH a) . .,.. * .. . ,”’ Constant Speed -+ High Speed Skip Speed O \ stop y’ -,, I l’----- High Spaad Skip Acceleration Area 5CH -- High Speed Skip Constant Spaed Area min. ICH * High Speed Skip Deceleration Aree 5CH 4 m ● High Speed Skip Control Range min.
REV.-A 2.3.7 PF Motor Control and Drive Circuit The PF motor is driven only by the 2-2 phase switching system, and the minimum paper feeding amount is 1/360 inch. Table 2-37 shows the various PF motor control relationships. Table 2-37. Various PF Motor Control Relationships PF Motor Coil Current [A/Coil] State 1 1 Holding 0.08 MAX. Driving 0.95 MAX. Acceleration/ Deceleration Control Paper Feeding Amount [Inches] 1 Remarks 1 — . — ~25/360 Not performed. Refer to Tables ~25/360 Performed.
REV.-A 2.3.7.1 PF Motor Drive Circuit .’. . The PF motor is driven using only 2-2 phase switching and regulated +35 VDC. Figure 2-62 shows the PF motor drive circuit and Figure 2-63 shows the pulse timing. Table 2-40 lists the relationships between various PF motor control factors. +5 +35 P14 5~;4 I 6 I COMCD I I ; 5 ] COMAB I“; R78 63 ZD9 E05A24GA (IIB) P20 P21 R53 30 ZD1O R54 31 ;“” ZD1l P22 .,. R55 32 ZD12 P23 R56 33 I t GP Figure 2-62.
REV.-A 2.3.7.2 PF Motor Phase Switching Timing The PF motor is a 4-phase stepper motor, and the phases are controlled by E05A24GA (11 B) terminals P20 to P23. 2-2 phase switching is used for this motor. Figure 2-64 shows the PF motor phase switching timing. P20 :; I——L___ E05A24GA (llB) 1 Rotation 1 I Step 2 1 3 C.c. w ~ C.w 1 4 (Paper feed forward direction) Figure 2-64.
REV.-A .@ ,., 2.3.8 CS/RF Motor Control and Drive Circuit $’ . . The CS/RF motor is directly controlled by the CPU (4B), and is driven by a constant voltage. The CS/RF motor has two functions (color select and ribbon feed). Switching between the two functions is performed in accordance with the rotational direction (forward (C. W.) or reverse (C. W)) of the CS/RF motor. Table 2-41 shows relationships between the various CS/RF motor controls. Table 2-41.
REV.-A 2.3.8.1 CS/RF Motor Drive Circuit ,The CS/RF motor is driven using 2-2 and 1-2 phases switching and regulated +35 VDC. Figure 2-65 shows the CS/RF motor drive circuit and Figure 2-66 shows the pulse timing. Table 2-43 lists the relationships between various CS/RF motor control factors. +5 +35 4 P33 CPU (4B) P04 P05 P06 P07 J t GP Figure 2-65. CS/RF Motor Drive Circuit P04 (46: Pin 2) 5VIDIV. Q24 Collector 50VIDIV. 5ms/DIV. NOTE : draft normal self-test, at ribbon feed Figure 2-66.
REV.-A .= , .,< 2.3.8.2 CS/RF Motor Phase Switching Timing The CS/RF motor is a 4-phase stepper motor, and the phases are controlled by CPU (4B) terminals P04 to P07. 2-2 and 1-2 phase stitchings are used for this motor. Figure 2-67 shows the CS/RF motor phase switching timing. Step ~ C,W (Color select) a) [ 1 4 3 2 Rotation P04 I I I 1 2-2 Phase Excitation ON OFF I P05 CPU (4B) ‘N OFF I I ON ’06 O F F I I I I I I I 1 I I I Step 2 5 6 I I I I I 4 3 I I 7 8 ~ C.
REV.-A CHAPTER 3 OPTIONAL EQUIPMENTS 3.1 GENERAL ~””c--””-.’u”u~””u”- ““uu”M””.-M”H’”u~”u”cH”MH”-” .HSMH”-..--U”3”--”3-1 3.2 OPTIONAL INTERFACES-”.-”- ““Hu”.H””-u””-”-”MoH”u”-.uc~”” ~“-~”H”MHH.M”~-”3-l 3.2.1 81431nterface Board ““.--”.-”-.”--””-”--.”-”---- “.-”-.--”-.--”--”--”3-2 3.3 PULL TRACTOR UNIT””-M””--- “c-”~”H.u”-””~”M”H”M”H””HHsM “H”-.~”-”uH”~.~cc”H3~4 3.3.1 Paper Feed Operations “--”-”-”-”-”””--””-”-”--”-””- -“-”-””---”--””’-3-5 ... 3.3.1.1 Pull Sproket Feed Operation . . . . . . . . . . . . .
REV.-A LIST OF TABLES Table 3-1. Optional Interfaces ..fl~.-.-.-..”o”.oH.”o--””H’”- ““~-”~~~~-””~”~-””=~”-””3-l Table 3-2. 8143 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . “-----””--”-”--”---3-2 Table 3-3. DIP Switch Settings .--..--.--....-...-.-.-””-.”” --”-”-”----”-”-”-”””-”-3-3 Table 3-4. Bit Rate Selection .-.--.--.-..-...-..---..-’-.” .---”------”--”-”-”--3-3 Table 3-5. 8143 Handshaking Control --.-.....-...-.-.-....-.-”---- -“-.--”--”-”---3-3 Table 3-6.
REV.-A 3.1 GENERAL This chapter describes the options available for the LQ-860/1060. 3.2 OPTIONAL INTERFACES The LQ-860/1060 uses the 8100 series optional interlaces. The main oPtional interfaces are listed in Table 3-1. Table 3-1. Optional Interfaces ~ I Cat. No.
REV.-A 3.2.1 8143 Interface Board When the RS-232C and 20 mA neutral current loop are in use, the printer will also support the 8143 new serial interface.
REV.-A DIP Switch Settings Table 3-3 shows the 8143 DIP switch settings, and Table 3-4 lists the bit rates selected by theDIP switch settings. When a standard 8-bit parallel interface is used instead of the 8143 l/F board, DIP switch 1-8 should be turned off. Table 3-3. DIP Switch Settings DIP SW Function No. OFF ON 1-1 (JB3) Bit rate selection See Table 3-4. 1-2 (J8/7) Data length selection 7 bits 8 bits 1-3 (JB 1) I Bit rate selection I See Table 3-4.
REV.-A 3.3 PULL TRAcTOR UNIT available The C80007t and C800~Ol for the LQ-860 and LQ-106(1. PuII are optional pull tractor units, sproCkd feeding and push-PUll feedin9 er are possible by mounting the Pull tractor unit ins@ad of the PaP ~~~~~~n3~:1;h0ws the exterior views of the LQ-860/1060 with pull tractor unit. LQ4315Q with C8W071 f-:: LQ-1060 with C8OO1O1 Figure 3-I.
REV.-A 3.3.1 Paper Feed Operations The operational differences between the standard push tractor and the CmO070/C800090 Pull tractor unit are described in below. 3.3.1.1 Pull Sproket Feed Operation Figure 3-2 shows the gear arrangement and paper path used with pull sproket feeding. Sproket Paper H Ribbon aper Feed Reduction Gear Feed Motor Pinion Gear / \- Platen Gear Paper Feed Roller (release) Figure 3-2. Pull Sprocket Feeding Gear Arrangement and Paper Path 3.3.1.
REV.-A 3.3.2 Dissasembly and Assembly This section describes the pull tractor sprocket assembly L (Left) and R (Right) removal, which requires special explanation. Step 1 : Remove the E-ring RE (2.3) from sprocket mountin9 plate L (Left), then remove the sprocket paper holding lever and sprocket paper holding spring L. Step 2: Remove the two HNO (4) nuts from sprocket mountin9 Plate L. Step 3: Remove the platen shaft holder. Step 4: Remove the sprocket frame L.
REV.-A 3.4 CUT SHEET FEEDER For the LQ-860/1060, both the single-bin cut sheet feeder C606141 /C806181 and double-bin cut sheet feeder C806151 /C806191 are available. Both cut sheet feeders are controlled by the firmware included in the printer. The cut sheet feeder has the following features : . Can handle cut sheets and envelopes in the same manner as fanfold paper. ● Can ● use fanfold paper without dismounting the cut sheet feeder. Allows user to load a sheet by control panel operation.
REV.-A ,.....[ ::, 3.4.1 Specifications Cut Sheet Feeder Hopper Capacity Cut sheets: 150 sheets.........82 g/m2 paper 185 sheets......,..64 g/m2 paper Envelopes: (only for bin 1 of the double bin cut sheet feeder) 25 sheets, maximum...... xerographic or bond paper 30 sheets, maximum...... airmail paper NOTE : For the double-bin CSF, only bin 1 can be used for envelopes. NOTE : If the weight of paper differs from above values, total thickness of sheets must be less than O. 59” (15 mm).
REV.-A Dimensions and Weight Refer to Table 3-6. Table 3-6. Dimensions and Weight CSF Width [mm] Depth [mm] Height [mm] Weight [Kg] C806141 384 440 408 Approx. 2.5 C806151 364 548 408 Approx. 3.8 C806181 525 440 408 Approx. 3.2 C806191 525 548 408 Approx. 4.8 NOTE : Dimensions are the measured values with the CSF being mounted on the printer.
REV.-A Paper NOTES: 1. All other paper with medium or high wood content and very light or very heavy paper must be operationally tested prior to regular use. Paper with a textured, embossed, glossy, or hammered surface also must be tested individually to prior to regular use. 2. The cut sheet feeder may not feed smoothly with some kinds of paper. 3. Using curled or curved paper causes the paper to jam. Therefore, paper should always be removed from the platen when the printer is not in use.
REV.-A 3.4.2 CSF Operating Principles The printer can be set to the cut sheet feeder mode by either the hardware or software setting. Hardware Setting The cut sheet feeder mode can be set with the DIP SW2-8 at the left side of the control panel. See Table 3-8. Table 3-8. CSF Mode Setting with DIP SW DIP SW Fubction ON OFF 2-8 Cut sheet feeder mode ON OFF Software Setting The cut sheet feeder can be controlled from the host computer by using the following software commands*’.
REV.-A 3.4.2.1 Paper Path and Gear Train Figure 3-7 shows the paper path when the cut sheet feeder is mounted. The LQ-860/1060 with the cut sheet feeder being mounted can handle the fan-fold paper as it is. It is not necessary to dismount the cut sheet feeder. However, the following operation is required to make the printer handle the fan- fold paper: ● Position the paper release lever at the center. ● Turn the paper switch cover downward, and turn the continuous paper guide plate upward.
REV.-A Figure 3-8 shows the gear train. When the continuous paper is used, the paper release lever pushes up the friction/tractor switch lever. At this time, the drive switch gear is in the release state and cancels the power conveyed from the paper ejecting gear. Therefore, the cut sheet feeder does not perform paper loading but paper ejection. ~~ Drive Gear D Drive Gear ~ \ Paper Loading Drive Gear .
REV.-A ,$--”’:, 3.4.2.2 Bin Switch Operation Selection between bin 1 and bin 2 of the cut sheet feeder (double-bin model) is performed by the panel setting or the software command. How the paper is loaded by the selected bin is illustrated in Figures 3-9 and 3-10. Bin 1 or 2 is selected depending on the number of steps for driving the paper feed motor in the reverse direction at Step 1 NOTE : Bin selection for the single-bin CSF is performed in the same way as bin 1 selection for the double-bin CSF.
REV.-A START: Platen (Rotates with platen gear) STEP 1: 4 STEP 2: 0 0 \ STEP 3: o 0 q:... . ..-~ ----- Rotation: @ Forward @ Reverse Figure 3-10.
REV.-A ,: ””’ , 3.4.3 Disassembly and Assembly + This section describes the procedure for removing the hopper unit of the cut sheet feeder. Unless otherwise specified, the disassembled parts are reassembled by simply performing the disassembly operation in the reverse sequence. The tools are listed in Table 3-9. Table 3-9. Repair Tools I Designation I Availability Part NO. I Phillips screwdriver No.
REV.-A Paper Support Shaft Holder Side Frame Figure 3-12. Paper Support Shaft Holder Removal ng Shaft Holder Paf>e Platen s Figure 3-13. Hopper Unit Removal WARNING When required to replace one paper loading roller, both right and left rolers must be replaced at the same time. ASEMBLY POINT: . When installing the paper loading roller, be sure to verify the direction of the roller on its surface. (Refer to Figure 3-13.) .
REV.-A 3.4.4 Preventive Maintenance Due to their proven design, cut sheet feeder requires a minimum of preventive maintenance. Required preventive maintenance includes : ● General cleaning of the device. ● Checking the mechanical functions. Cleaning of the paper loading rollers and the paper ejecting rollers is necessary at regular intervals and can be carried out after instruction. Intervals are determined by the time in operation and the paper type being used.
REV.-A CHAPTER 4 DISASSEMBLY, ASSEMBLY, AND ADJUSTMENT 4.1 GENERAL REPAIR INFORMATIONC “..u.,””-.”HSM”M”H”MU”M””H””H “xMco’~-.Hou”oH.4-l 4.2 DISASSEMBLY AND ASSEMBLY”””--””H””-~””U”~M” -“OH”--.”~”~MOM”UOUH””””-4-5-5 4.2.1 Upper Case and Control Panel Removal ““”-.-”~”~”~”~~”.”~~””~.-”~ 4.2.2 Push Tractor Unit Removal .“-”””.-”-.-””--”-”-””--”-””- ““-.4-6 -“-”-”--”-”-”-”4-7 4.2.3 Circuit Board Removal””””.”””.””””.””.””.”””.” c“”.”””””0””.”.”.”.c””.”c”o.”0”.””-c. “.”””’”4-8 4.2.3.
REV.-A 4.3.3 Electric Board Adjustment ““”””” ““”””””””””” ““”””””” ““” “ ““” ““”’””””-”” ““”” ““” “ ““”””””””””4-40 g:,.., 4.3.3.1 Bidirectional Value Adjustment ~“”~”””~”-----”-”~”””f”””=wo”=wo LIST OF FIGURES Figure 4-1. LQ-860/1060 Parts . . . . . . . . . . . . . . ..“.. . . . . . . . . . . . . . . . . .“.”””””.. ““””””.”” .“. .“.””” ““” ”” ”” ”-4-2 Figure 4-2. Transport Locking Brackets Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... -.
REV.-A Figure 4-34. Mainframe Unit ““-””---””-”-””--.”-”-”--”- ““-”--”-””--”-.-.---”-4-28 Figure 4-35. BaseFrameUnit .“”””-”......”””””””””””””””””””””””””” Figure 4-36. Carriage Removal “u””-M”-”-u”~”H”~”u”-.uoHo-” H“-.~o~”--o~H-.-H-294-29 Figure 4-37. Leaf Spring and .“”””.”””””””.”.”.”-”...””””””””””.4-28 Parallel Adjustment Bush lnstatlation -u-”.”-M”-.u-”-”M”--”Moc2929 Figure 4-38. Paper Guide Plate Spring and Paper Guide Plate Removal “tiH”HoM”-””M”tiou”””-MM”o”m “~~”~”4-30 Figure 4-39.
REV.-A 4.1 GENERAL REPAIR INFORMATION This chapter describes the disassembly procedures to be used for replacing any of the main components of the LQ-860/1060. Required and helpful tools, measuring instruments, and lubricants and adhesive listed in Tables 4-1 through 4-3. Table 4-1. Repair Tools Designation Necessary Part. No. Convenient Philips screw driver #2 Box driver (7 mm across) o B743800200 o B741700200 Thickness gauge (0.
REV.-A ,7.. “!. Figure 4-1 shows some of the parts found on the LQ-880/1080. Sheet \ Guide I ‘heetGuidecover247!2%A Option Board Cover ‘rin’er;:;covex,a’ nK”ob Control paper I Panel Paper Release Lever Tension Unit Push Tractor Unit I Power Switch Figure 4-1. LQ-860/1060 Parts 4-2 *.. . . . . ‘%.
REV.-A WARNING There are several precautions you should take after performing troubleshooting and when packing the printer for transport: 1. Slide the printhead to the middle of the printer. Then remove the paper tension unit. 2. Remove the sheet guide, ribbon cartridge, and platen knob. 3. Using a philips screw driver #2, reattach the two transport locking brackets. w rt Locking Brakets Figure 4-2. Transport Locking Brackets Installation 4.
REV.-A Screws, washers, nuts, etc. are abbreviated using the conventions below. Table 4-4.
REV.-A 4.2 DISASSEMBLY AND ASSEMBLY Components of the LQ-860/1060 may be assembled simply by performing the disassembly operation in reverse sequence. Assemboly procedures, therfore, have been omitted. The sequence of this disassembly in this section is grouped into three parts: (1) removal of the upper case, (2) removal of the push tractor unit, (3) removal of the circuit boards, and (4) disassembly of the printer mechanism. This sequence is shown in Figure 4-3. 4.2.2 4-7 Push Tractor Unit Removal 4.
REV.-A ,<:,, *. 4.2.1 Upper Case and Control Panel Removal To check the interior of this printer, first remove the upper case using the steps listed in the paragraphs below. DANGER Prior to beginning the following procedures, be sure to disconnect the power cord and interface cable, and remove the paper installed in the printer. Step 1 : Remove the CBB (M4x25) screw securing the upper and lower cases.
REV.-A 4.2.2 Push Tractor Unit Removal Remove the push tractor unit before removing the circuit boards and the printer mechanism from the lower case. Step 1 : Remove the upper case (Refer to Section 4.2.1.). Step 2: Position the paper release lever at the its front setting. Step 3: Remove the two CBS(0) (M3x6) screws securing the push tractor to the printer mechanism. Step 4: Remove the push tractor unit by pushing it to the back.
REV.-A [,. .. . 4.2.3 Circuit Board Removal This printer includes two circuit boards : the JUNMM controller circuit board and MONPS/MONPSE power supply circuit board. 4.2.3.1 JUNMM Board Removal Step 1 : Remove the upper case (Refer to Section 4.2.1.). Step 2: Remove the push tractor unit (Refer to Section 4.2.2.). Step 3: Disconnect connectors CN5 and CN9, which connect the MONPS/MONPSE board.
REV.-A CBS(0) (M3x6) – Lithium Battery CCB (M3xIO) Figure 4-8. JUNMM Board Removal DANGER ● A lithium battery is mounted on the JUNMM board. Be careful not to lay the board down on a conductive surface, nor let any metal chips fall on to the board. It is very dangerous to allow the lithium battery to short, because it could burst. ● Danger of explosion if the battery is incorrectly replaced. Replace only with same or equivalent type recommended by Seiko Epson Corp..
REV.-A 4.2.3.2 Fan Unit Removal Step 1 : Remove the upper case (Refer to Section 4.2.1.). Step 2 : Disconnect the connector CN2 on the MONPS/MONPSE board, then remove the fan unit (Refer to Figure 4-Io.). Step 3: Open the bent tab, then separate the fan motor from the fan adapter. Fan Motor I Fan Adaptor / / Tab ‘.. . Figure 4-9. Fan Unit Removal ASSEMBLY POINT : .
REV.-A 4.2.3.3 MONPS/MONPSE Board Removal Step 1 : Remove the upper case (Refer Step 2: Remove the push tractor unit (Refer to Section 4,2.2.). Step 3: Remove the fan unit (Refer to Section 4.2.3.2.). Step 4: to Section 4.2.1.). Disconnect the connector CN1 which connect the JUNMM board and the CN2 which connect the fan unit. Step 5: Remove the two CBB (M3x12) and two CBS(0) (M3x8) screws securing to lower case.
REV.-A 4.2.4 Printer Mechanism Disassembly This section describes the procedures for disassembling the main components of the printer mechanism. Refer to Figures A-36 and A-37 in Appendix during assembly. 4.2.4.1 Printer Mechanism Removal Step 1 : Remove the upper case (Refer to Section 4.2.1.). Step 2: Remove the platen knob. Step 3: Remove the push tractor unit (Refer to Section 4.2.2.).
REV.-A 4.2.4.2 Printhead Removal Step 1 : Remove the printer cover A. Step 2: Slide the carriage to the left, then remove the ribbon cartridge. Step 3: Move the head lock levers to the outside. Step 4: Shift the printhead slightly toward the platen side, pull it upward, slide it to the right, and remove from the carriage. Step 5: Disconnect the two head cables (F and R) from the connectors at the printhead. Head Lock Lever Carriage Pri;thead Figure 4-13.
REV.-A Head Cables (F and R) and Color Select Cable Board Removal 4.2.4.3 Step 1 : Remove the Step 2: Remove the printhead (Refer to Section 4.2.4.2.). Step 3: Disconnect the connector of the color select/ribbon Step 4: Disconnect the connector of the color select sensor. Step 5: Open the four tabs securing the color select cable board to the carriage, then remove the color printer mechanism (Refer to Section 4.2.4.1.). feed motor. select cable board from the carriage.
REV.-A 4.2.4.4 Carriage Motor Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2: Cut the wire clamp, then remove the carriage motor lead wire from the base frame. (See Figure 4-12.) Step 3: Remove the belt tension spring. Step 4: Remove the four CBS(0) (M3x6) screws securing the carriage motor to the base frame. Step 5: Remove the carriage motor. CBS(0) (M3x6) Carriage Motor Beit Tension Spring Figure 4-17. Carriage Motor Removal ASSEMBY POINT: .
REV.-A f:. . 4.2.4.5 Timing Belt Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2: Remove the carriage motor (Refer to Section 4.2.4.4.). At this time, it is not necessary to cut the wire clamp, which binds the lead wires from the NOTE : carriage motor. Place the carriage over the notch in middle of the base frame, and release the two engaged Step 3: parts of the timing belt and carriage from the bottom side of the base frame.
REV.-A 4.2.4.6 Home Position Sensor Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2: Press the two tabs of the home position sensor on the bottom of the base frame. Step 3: Remove the home position sensor. Step 4: Disconnect the connector from the home position sensor. Home Position Sensor Cable Home Position Sensor a) Top View b) Botom View Figure 4-20.
REV.-A 4.2.4.7 Platen Gap Sensor Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2: Cut the wire clamp, then remove the carriage lead wires, from the base frame. (See Figure 4-12.) Step 3: Position the head adjustment lever at a setting between the 1st and 2nd positions. Step 4: Remove the two tabs securing the platen gap sensor to the left frame, then remove the sensor. Tab Head Adjustment Lever Platen (.- u a) b) Inside Left Outside Left Figure 4-21.
REV.-A 4.2.4.8 Paper Feed Motor Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2: Remove the two CBS(0) (M3x6) screws. Step 3: Remove the paper feed motor. Paper Feed Motor CBS(0) (M3x6) Figure 4-22. Paper Feed Motor Removal FADJ”STMENTRE”U’RED ● When the paper feed motor is replaced or the fixing screws are loosened, perform the following Section 4.3.1.
REV.-A 4.2.4.9 Friction/Tractor Sensor Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2 : Position the paper release lever at the its back setting. Step 3: Remove the CPS(P) (M3x1O) screw securing the friction/tractor sensor to the right frame, then remove the sensor. PaDer Release Lever ,/’ / / Friction/Tractor Sensor (M3x1O) Figure 4-23. Friction/Tractor Sensor Removal ASSEMBLY POINT : .
REV.-A 4.2.4.10 Paper End Sensor Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2: Loosen the two bends securing the paper end sensor to the back of the paper guide. Step 3: Remove the paper end sensor. Paper End Sensor Paper Guide B&d Figure 4-24.
REV.-A 4.2.4.11 Platen Unit Removal Step 1 : Remove the upper case (Refer to Section 4.2.1.). Step 2: Remove the two CBNS (M3x6) screws securing the platen cover to left and right frames, then remove the platen cover. i,.; Figure 4-25. Platen Cover Removal Step 3: Position the paper release lever at the its middle setting. Step 4: Push on the left shaft holder tab, and rotate it forward. Step 4: Push on the right shaft holder tab, and rotate it forward.
REV.-A 4.2.4.12 Color Select Sensor Removal Step 1 : Remove the upper case (Refer to Section 4.2.4.1.). Step 2: Position the color select sensor mounting part of the carriage at the cutout in the base frame. Step 3: Open the tab of the ribbon drive base, then remove the color select sensor from the carriage. Step 4: Disconnect the connector of the color select sensor from the color select cable board. Color Select Sensor / Base Frame \* Figure 4-27.
REV.-A 4.2.4.13 Color Select/Ribbon Feed Motor Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2 : Remove the printhead and head cable from the carriage. (Refer to Section 4.2.4.2.) Step 3: Disconnect the color select/ribbon feed motor and color select sensor connectors from the cable board. (Refer to Section 4.2.4.3.) Step 4: Remove the head cable holder, then remove the cable board from the carriage. (Refer to Section 4.2.4.3.
REV.-A ASSEMBLY POINT : . When installing the ribbon drive gear, set it as shown in Figure 4-30. I & I I Ribbon Drive Gear 1111 LS (3.4x0.06x11) ~ / +Carriage Figure 4-30.
REV.-A 4.2.4.14 Paper Release Lever and Sub Paper Release Lever Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2: Remove the paper feed motor (Refer to Section 4.2.4.8.). Step 3: Remove the tractor transmission gear spring, washer PW (5.2xO.3X1O), paper feed reduction gear, and tractor transmission gear. Step 4: Remove the platen unit (Refer to Section 4.2.4.11.). Step 5: Press the paper release lever tab at the inside of the right frame, then remove the lever.
REV.-A 4.2.4.15 Main Frame Unit and Base Frame Unit Separation Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2: Remove the timing belt (Refer to Section 4.2.4.5.). NOTE: The carriage motor need not be removed. Step 3: Remove the paper feed motor (Refer to Section 4.3.4.8.). Step 4: Remove the paper release lever and sub paper release lever (Refer to Section 4.2.4.14.). Step 5: Remove the platen gap sensor from left frame. (Refer to Section 4.2.4.7.
REV.-A Figure 4-34. Main Frame Unit n-- Figure 4-35. Base Frame Unit ADJUSTMENT REQUIRED ● When the paper feed motor is replaced or the fixing screws are loosened, perform the following adjustment: Section 4.3.1.3 Paper Feed Motor Gear Backlash Adjustment ,“ ,.
REV.-A 4,.2.4.16 Carriage Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2 : Separate the main and the base frame units (Refer to Section 4.2.4.15.). Step 3: Remove the two HNO (4) nuts from left frame, which secure carriage guide shafts A and B. Step 4: Remove the HNO (4) nut from the right frame. Step 5: Spread both left and right frames apart, and remove the carriage guide shafts A and B. Step 6: Pull the carriage out from the carriage guide shafts A and B.
REV.-A 4.2.4.17 Paper Guide PIate Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2: Separate the main and base frame units (Refer to Section 4.2.4.15.). Step 3: For the LQ-860, remove three paper guide plate springs or for the LQ-106O remove four paper guide plate springs with the mechanism status. Step 4: Remove the paper guide plate. @ L o Plate Paper Guide Plate Spring Figure 4-38.
REV.-A 4.2.4.18 Paper Feed Roller Unit Removal Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2 : Separate the main and base frame units (Referr to Section 4.2.4.15.). Step 3: Remove three paper feed springs for the LQ-860 or four for LQ-106O from the hook on the base frame. Step 4; Remove the paper feed roller unit. ASSEMBLY POINT : ● When installing the paper feed roller unit, check that the stopper at the bottom edge of the unit is placed in the groove of the base frame.
REV.-A 4.2.4.19 Push Tractor Unit Disassembly This section describes the removal of the tractor assembly (left). Since disassembled Patis can be assembly procedures have been omitted. reassembled by using the removal procedures in reverce order, Step 1 : Remove the shaft holder from the tractor left frame. Step 2: Remove the CBS(0) (M3x6) screw securing tractor left frame to the tractor base frame. Step 3: Remove the HNO (4) nut securing the tractor guide shaft Step 4: Remove the tractor left frame.
REV.-A 4.2.4.20 Paper Tension Unit Disassembly This section describes the removal of the paper tension roller shaft assembly. Since disassembled parts can be reassembled by using these procedures in reverse order, the assembly procedures have been omitted. Step 1 : Remove the RE (4) on the paper tension roller shaft at the outside of the paper tension left frame.
REV.-A q?, 4.3 ADJUSTMENT This section describes the adjustment procedures required when reassembling this printer. When disassembly or replacement is performed during maintenance or repaires of the parts described in this section, the following adjustments should be performed to ensure proper operation. 4.3.1 Printer Mechanism Adjustment This section describes the printer mechanism adjustment. 4.3.1.
REV.-A I /’” Thicknes s Gau9e (0.41 AO.02 mm) / ’ ” I Cafria9e’Guide Shafi B Figure 4-45.
REV. -A 4.3.1.2 Platen Gap Adjustment Adjust the gap between the platen and the printhead when : ● When the mounting positions of carriage guide shaft B and the head adjustment lever are changed. Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2: Remove the printhead (Refer to Section 4.2.4.2.). Step 3: Remove the Ribbon mask holder with the ribbon mask (Refer to Figure 4-44.). Step 4: Reinstall the printhead on the carriage.
REV.-A I1/ Thicknss Gauge , (0.41+0.02 mm) Screwdriver Lever I I ‘“ I I Carriage Guide Shaft B[ 1 I Figure 4-46.
REV.-A Screwdriver 0.41 tO.02 mm d 1= Screw a a>b up b ,, . , %.. Figure 4-47. Carriage Guide Shaft B Eccentric 4-38 1 Figure 4-48.
REV.-A 4.3.2 Paper Feed Motor Gear Backlash Adjustment This adjustment is required either when: ● The paper feed motor is replaced or when its mounting position is shifted. Step 1 : Remove the printer mechanism (Refer to Section 4.2.4.1.). Step 2: Loosen the two CPS(0) (M3x6) screws on the paper feed motor. Step 3: Manually rotate the paper feed motor, and adjust the gear backlash between the pinion and the paper feed reduction gear. Allowable backlash: 0.10+0.
REV.-A 4.3.3 Electric Board Adjustment This section describes the JUNMM board adjustment. if replace the JUNMM board or printer mechanism, perform the adjustment in below. 4.3.3.1 Bidirectional Value Adjustment If printing is misaligned in during bidirectional printing, align the printer by adjusting JUNMM board, according to the alignment sequence flowchart shown VRI and VR2 on the in Figure 4-50 (Refer to Figure 4-51 for the positions of the switches and VRS). Table 4-6.
REV.-A ( ( ) START e as * Align the printing position. Feed the paper backward VR2 Adjustment Feed the paper backward for 1000 steps. Y Depress the ON LINE. 1 I 1 I I Initialize the I printer. Depress the TEAR OFF. I I 1 Pef-formthetestprint. I I I I END ( Figure 4-50.
REV.-A A I 1 Print character “l” for three lines at mode =3. I I Feed the paper forward for 1060 steps. I w I Adjust the VR2. 1 [ 1 Depress LINE FEED. I I I -A I Which mode select VR1 adjust or enter VR1 Adjustment 1 J’it * (5 B Figure 4-50. Print Position Alignment Sequence 4-42 $-””+,.
REV.-A Figure 4-51. Positions of Switches and VRS Printing Position Alignment Check Figure 4-52 shows three lines of test printing with characters “1”. Using this printout, check the following: Odd Line......... Reference Even Line.........Move Figure 4-52. Test Printing for Printing Alignment Check which directionof the even-numbered line (2’nd) is shifted as compared tothe odd-numbered lines (lstand3’rd) ● To shift the even-numbered iinetothe left, press the TEAR OFF switch.
REV.-A CHAPTER 5 TROUBLESHOOTING 5.3.1 5.3.2 JUNMM Board Unit Repair H“.MO”.H-.”-”H”.~-”-.”-”H”H” -“uu”H””u”--”u.5-2O 5.3.3 Printer Mechanism Unit Repair .“--””-..-”-.-”-”-.”--”-.”- -“-”-”--”-”5-22 MONPS/MONPSE Board Unit Repair “’”U”-””H”-”-””U-”-””-U”H”-”U ~“-””5-14 LIST OF FIGURES Figure 5-1. Troubleshooting Procedure ““” ”””””””””””””””””””””””””””””” ““” ”” ”” ”” ”” ”” ”” ”” ”” ”” ”” ”” ”” ”””5-1 Figure 5-2.
REV.-A 5.1 GENERAL Because various types of trouble can occur, trouble shooting is not easy to perform. Here, a simple procedure is provided to perform trouble shooting, as shown 5,2 in Figure 5-1. 5-2 Unit Replacement Figure 5-1. Troubleshooting Procedure First, perform repair by unit replacement to determine defective units. Then replace the defective components in the defective unit.
REV.-A 5.2 UNIT REPLACEMENT The unit replacement is based on system analysis. According to the particular symptom found by the multimeter, the units listed in Table 5-2 need to be replaced. First, find the corresponding symptom by referring to Table 5-3, then check the problem by referring to the flow charts on the pages indicated in the column “Reference Pages.” Table 5-2. Unit Lists Fuse (Fl) MONPS BOARD MONPSE BOARD Unit No. Description Unit Name 120V 3.15A UL, CSA X502O61O6O 250V 2.
REV.-A Table 5-3. Symptoms and Reference pa9es -. Referel Problem Indicators Symptom printer does not oper- ● NO LEDs ate at all with power ● Fan switch on ● Printer Carriage mechanism is not initialized Pag( are lit on the control panel. 5-4 unit does not operate. mechanism is not initialized. ● Carriage does not stop at the home position after the power is 5-5 turned on. . The buzzer rings ( J x 5) indicating for an error.
REV.-A f’:.... ... 1. Printer does not operate at all with power switch on. I Measure the AC input voltage. I N Use correct AC input voltage. voltage normal ? Replace the fuse Fl, and disconnect connector CN1 on the MONPS/MONPSE board. Y oA Disconnect connector CNI on the MONPS/MONPSE board, turn the printer power on, and measure the output voltage’1 I ‘t N voltage - normal ? r Connect CN1 on the MONPS/MONPSE board. Dscomect connectors on the JUNMM board, except CN5, CN9 and CN16.
REV.-A 2. Printer mechanism is not initialized v turned on, is the mechanism I Replace the printer mechanism. N Replace the JUNMM board. Confirm that the C.G. ROM (3A) is inserted correctly.
REV.-A 3. Incorrect printing with normal carriage operation a) In the self-test or normal printing mode: Using a black ribbon cartridge. START I ● Install the black ribbon cartridge. ● Perform the self-test. Y Align the bi-directional printing positions. (Refer to Section 4.3.2.1.) I I r I Check the printhead thermistor not open. v Y m + u Are the resista- Y Replace the printhead. ... .... f:, d perform the self-test. ~“” Replace the printer mechanism.
REV.-A b) In the self-test: Using a color ribbon cartridge u Replace the printer mechanism. color ribbon cartridge move I Perform the self-test. I JUNMM board. I *V I L Align the bi-directional printing positions. (Refer to Section 4.3.2.1.
REV.-A 4. Abnormal paper feed Select the corresponding paper feeding method by N feeding method and the ‘:::’:’;:’paper A T N rotate smoothly when turned Replace the printer mechanism. ,fi..
REV.-A 5. Abnormal control panel oper loading operation when push the FORM FEED, LINE FEED, and N d= Y Load the paper and push the ON LINE switch. N 9 Operate each switch and confirm that the corresponding LED is lit with beep. I I I switch and LED operate Y Replace the panel unit. I Y N Replace the JUNMM board.
REV. -A ~:,,, <.. . ..,, 6. Incorrect printing in ON LINE mode s Refer to other troubleshooting Check the settings of the interface between the printer and host wnlcn Inremace :- !-- :-- .--..I n I Check the interface cable between the printer and host computer as follows: I I Change the settings. ● Are the signal connections correct ? ● Is the interface cable connected firmly ? I Is the fault corrected ? 1 T7 END Are the settings correct ? Replace the JUNMM board.
REV.-A Table 5-4. MONPS Board Environmental Condition w ‘owersupp’y’ine +35–GP 35.5 35.5 35.4 +12– GND 9.7 9.7 9.8 –12– GND –9.9 –10.0 –10.0 +5–GND 5.1 5.1 5.1 NOTES : 1. These voltage are measured when printer is in waiting mode. 2. Input voltage is 120V AC. Table 5-5. MONPSE Board Environmental Condition Output Voltage [V] Power Supply Line O“c 25°C 4o”c +35–G, 35.4 35.4 35.4 +12– GND 11.8 11.8 11.8 –12–GND –12.1 –12.1 –12.2 +5–GND 5.1 5.1 5.1 NOTES : 1.
REV.-A 5.2 UNIT REPAIR This section describes unit repair procedure of the defective unit isolated in the former section. The following pages describe repair by replacing defective components or elements in the MONPS/MONPSE board, JUNMM board, and the printer mechanism. Each section consists of the following five portion : 1. Problem: Check problems against those given in this column. 2. Symptom : Compare symptoms to those given in this column. 3. Cause: Possible causes by symptom are listed. 4.
JUNMM BOARD E512 o z (o ‘n -. L - I I mw 1 .—— m—n m cn C9 .@ -u m PRINTER MECHANISM NOTE : These cables and connectors are longer than the distance between the JUNMM board and the printer mechanism, and MONPS/MONPSE board to make troubleshooting easier. Figure 5-3.
REV.-A f,... 5.3.1 MONPS/MONPSE Board Unit Repair y’ The power supply circuit (MONPS/MONPSE board) is divided into three blocks: (1) Input filter circuit, (2) Secondary side, and (3) Main switching circuit. + 35 v AC IN +5V Q + 12V [ Figure I I 5-4. MONPS/MONPSE I Board Block Separation < “, * .-”, ’ If trouble occurs, first determine the faulty block and then find the bad component, referring to Table 5-7 and Figure 5-6. DANGER 1.
REV.-A Table 5-7. MONPS/MONPSE Board Unit Repair Symptom +5 V line is dead. Caus Checkpoint IC20 Solution / .’ / Replace IC20. malfunction. +35 V line is Refer to the checkpoint list for the +35 dead. V line. +35 V line is Input filter circuit Check the input voltage waveform at dead. malfunction. the DBI input terminal. Check whether the input filter circuit is partly shorted or open. . Q1 is open between the “ Check the voltage waveform at the “ Replace Q1. Tl,,-,, terminals.
Fiaure 5-6. MONPS/MONPSE Board Voltage Waveforms Masuring Position DB1 Q2 EtE Channel (AVn) 1 Inwt Side ;ollecto Emitter 1 Voltage Waveform Condition Storage Power OFF OFF C6 1 + Power ON TYl T2 TI 2 (lNV.
Figure 5-6.
REV.-A Fiaure 5-6. MONPS MONPSE Board Voltage Waveforms . ... z’ L.”. $.. ? : .:, -.
Figure 5-6.
REV.-A ,.*: . \, 5.3.2 JUNMM Board Unit Repair If trouble occurs with the JUNMM board, troubleshoot it as described in Table 5-8. Table 5-8. JUNMM Board Unit Repair Problem Symptom Cause The printer VX does not The VX gen- does not reach 5 VDC. eration cir- operate at all. cuit is defec- (The POWER tive. LED is lit.) Checkpoint Check that transistor Q5 is on. Solution ON : Replace Q48. OFF: Replace Q5 or ZD8.
REV.-A Table 5-8. JUNMM Board Unit ReDair . Problem Symptom Paper is not The paper Drive fed normally. feed motor transistor operates defective. Cause Solution Checkpoint is abnormally. Observe the waveforms to check that the Replace the output signals (at pins 30, 31, 32, and 33) correspond- of the IC (lIB) and the output voltages ing defective between collectors and emitters of the element. corresponding drive transistors (Q30 through Q41) synchronize (see Figs. 2-57 and 2-58).
REV.-A ;f-? -- 5.3.3 Printer Mechanism Unit Repair If trouble occurs with the printer mechanism, troubleshoot it as described in Table 5-9. Refer to Sections 4.2 DISASSEMBLY AND ASSEMBLY and 4.3 ADJUSTMENT for replacement and adjustment of parts. Table 5-9. Printer Mechanism Unit Repair Problem Checkpoint Symptom Cause When the The carriage The carriage printer mech- operates ~ motor anism is abnormally. defective. Solution . Measure each coil resistance of the is carriage motor.
REV.-A Table 5-9. Printer Mechanism Unit Repair Problem Solutic Symptom Cause Checkpoint Printing is Printing pressure does The PG sen- Check that the PG sensor opens Replace abnormal. not change after the sor is defec- when the head adjustment lever PG sens{ head adjustment lever tive. is set to any of the Ist to 3rd is set to the copy mode position, and it closes when set position (the carriage at any of the 4th to 8th position. speed is not decelerated).
REV.-A CHAPTER 6 MAINTENANCE LIST OF FIGURES Figure &l. LQ-106o(LQ-MO) Lubrication Application Points Diagram -”- ”. ”””. ””’’ ”” ”” ”. ””6-2 LIST OF TABLES Table 6-1. Lubricants" -."".... ".... """"" "". """"... ""-. "."" -."". "o."."""- ... ”. ””. ”” ”” ””. ”” ””. ””. ”. ”” ”” ””. ”” ”””6-1 Table 6-2. Lubrication Points (Refer to Figure 6-l.) o“.”” ““” ”-o O“”O”-” ””O” ”.s ””o ”” ”. ””c ””.
REV.-A 6.1 PREVENTIVE MAINTENANCE Proper maintenance is essential to maintain optimal printer performance for the longest possibly period and to minimize malfunction frequency. Preventive maintenance includes regular cleaning of the case exterior, using neutral detergent, and occasional vacuuming of the mechanism interior to remove dust and paper particles. Following cleaning, refer to Section 6.2 LUBRICATING APPLICATION to verify that the unit is adequatery lubricated.
REV.-A APPENDIX A.1 PRINCIPLE IC SPECIFICATIONS -..-”-””.-”--.”-”-”-”-.-””-- .-”-.-”-.-.-”---.-A-I A.1.l JUNMM Board “-~uo.”H”.~.”-”u””-””~-””-.~H .“~”-”o”H”M.~”-M.o-o-.--o-lA-l A.1.l.l ~PD78213” -.”.-”””-””-”-””--””-.-”-”-”- --”-”-.-””-.-””-”--”-.A-2 A.1.1.2 2 7 2 5 6 “---”--.”---”.-”.-.”--.-.-.-” --”-.--””-”-”--”-.”--7-”-A-7 A.1.1.3 HM65256BLSP-12 ““-””--””--”””---””-””--””-”- A.1.1.4 HM6264ALP42 -“”-s””-.””--””-”--”.-.-”-”--- “-”-”-.-.-”--”-”-A-9 A.1.1.5 E05A02LAMoH””-..-H...
REV.-A p), Figure A-1 7. Figure A-18. Figure A-1 9. Figure A-20. Figure A-21. Figure A-22. Figure A-23. Figure A-24. Figure A-25. Figure A-26. Figure A-27. Figure A-28. Figure A-29. Figure A-30. Figure A-31. Figure A-32. Figure A-33. Figure A-34. Figure A-35. Figure A-36. SI-7300A Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .... ””....””...”””..”-.”””.””””””. ““A-1 9 SI-7300A Internal Circuit . . . . . . . . . . . . . . . . . . . . . . ...... <“......““ ...””” .“ ““”. ““-.
REV.-A Table A-1 6. CN6 Pin Assignments .“..” .” ”” ”. ”” ”” ””... ””””..”” ““”.. ””. ”” ”” ””. ”... ””””-”.”. .“.””.””””.”A-29 Table A-1 7. Table A-1 8. CN7 Pin Assignments””-”””” .“” ” .... ””””.””..”..”...--.”””.”-- “.”.””-”.””.-”..”””-..”.” “A-29 .... CN8 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-29 Table A-1 9. CN9 Pin Assignments u..-”M””H”””~”U”~”””.””-”-”-. -“u”M”H-”M””-”HuoA-30 Table A-20.
REV.-A A.1 PRINCIPLE IC SPECIFICATIONS This chapter describes the principal ICS used in this printer. A.1.l JUNMM B o a r d Table A-1 shows the primary ICS used on the JUNMM board. Table A-1. JUNMM Board Primary ICS Location IC Name Type Description Reference Section 4B gPD78213 GQ36 CPU NMOS 8-Bit A.1 .1.1 6A 27512-20 EP-ROM Program ROM A.1.1.2 3 A I M 1 O A 2O Y A IMask-ROM llM-Bit C . G. 1 - 5A HM65256BLSP-12 PS-RAM 32K x 8-Bit 120 ns A.1 .1.
REV.-A A.1.l.l ,f?. ,uPD78213 ,uPD78213 is an 8-bit single chip microcomputer that can access a IM byte memory space. The main functions are as follows : . High speed : 0.40YS instruction cycle (9.83 MHz) .
II BUS CONTROL . SYSTEM CONTROL I } I L I 1 LJ Pc (n 3 m 1 . . . u’~ (lJ** I PERIPHERAL BUS IIF Figure A-2.
REV.-A Tahk Functions . ---- A-2. . . -- IIPD78213 ~. — - —— - Terminal — Pin No. Terminal 1/0 I Signal Name Description +5 VDC 49 VDD 17, 32 Vss I — 48 1. c. – 13 P60 o SBO 12 P61 o SB1 Switch bank 1 11 P62 o SB2 Switch bank 2 10 P63 o P66 o SB3 —.
REV.-A Table A-2. ,uPD78213 Terminal Functions Pin No.
REV.-A Figures A-3 and A-4 show bus interface timing for the basic ,uPD78213 ICLK*l A8– A15 (out) ADO– AD7 Upper Address “’@ii@---i’z’cEi@ -cEi@--’ ’’--c ASTB (out) \ RD (out) *I: System clwk frequency Figure A-3. Memory Read Timing ICLK*l A8–A15 ADO-AD7 (out) Upper Address “-’c@D’i’z-< tii-Z - }{ Oata ASTB(out) \ \ m (out) / / *1: System clock frequency .. .-, . . . ‘, ., ,. Figure A-4.
A.1.1.2 2 7 2 5 6 The 27256 is an EP-ROM, which is an ultra-violet erasable and electrically programmable ROM. Fertures .32768 words x 8bits VPF ,, 4 !2 2 27 At4 3 26 A13 . TTL compatible input/output A? 28 Vcc p !2j A 8 “ +5 VDC single power A6 [{ . Access time 200 ns (MAX.) As 24 A 9 b 5 A4 .28 pins (DIP) A3 Terminal Functions A2 A$ . AO-A14 Address input . CE “ OE AO Chip enable input 0 0 Output enable input 0 1 0 2 . DO-D7 Data output GNO . Vcc Power supply (+5 VDC) .
REV.-A A.1.1.3 f,--- ‘. HM65256BLSP-12 This is a 8K-byte CMOS static RAM which has low power consumption, and itS inPut/outPut level is compatible with the TTL ICS. Fertures .32768 words x 8 bits . TTL compatible input/output . +5 VDC single power - CS access time 120 ns .28 A14 I 2 8 Vcc A12 2 27 ~ A7 2 6 A13 3 2s AO A6 4 (MAX.) pins (DIP) As s 24 A4 6 23 AI I Al A9 22 R 7 Ill Terminal Functions o AO-A14 .
REV.-A A.1.1.4 HM6264ALP-12 This is a 8K-byte CMOS static RAM which has low power consumption, and its input/outPut level is compatible with the TTL ICS. 1 z VDO A12 2 27 m A? 3 26 A6 Ii 25 A8 A5 5 24 A9 NC Features .8192 words x 8 bits . TTL compatible input/output “ +5 VDC single power . CS access time . . . 120ns (MAX.) A4 6 .28 pins (DIP) Terminal Functions . AO-A12 Address input A2 8 21 AIO Al 20 xl 9 AO 10 . OE Output enable input D o 11 1 D 1 12 .
REV.-A A.1.1.5 E05A02LA The E05A02LA is a gate array IC used to lighten the load on the CPU when processing print data. Figure A-Il. E05A02LA Pin Diagram r — — — — — — ” DO-D7 — REDY H I \ Ha HPW R ST CT AO H17 \ H24 Im 1 I Figure A-12.
Table A-6. E05A02LA Terminal Functions Pin No.
REV.-A A.1,1.6 g’” EO5A1OAA The gate array is a memory management unit iC which contains reset circuit, address latch, memory management unit, and so on. GND 680 mo BANK MMI03 MLT AB 15 A814 AB 1’ i jl:o Vcc CPU w: m m A88 OBI 060 ABO AB2 AB 3 ~D BANKO AB i DB2 AB7 CAR2 m AB4 A 66 BANKI CSBEO DB6 AB13 AB12 AB9 DB3 DB4 DB5 DB7 Vcc CSBOO BANK4 BANK5 BANK3 ROUT DISC THLD A85 CS13F0 CSB40 MM1OI PORT2 PORT I PORTO m GND ;’ “i—: 1 L Figure A-13. EO5A1OAA Pin Diagram $,’”:.
GNO VOD (+5V) $! AB I 5- 8 I 1 “ ADDRESS ALE DB 7 - 0 c LATC I-i LOWER ADDREsS DATA AB 15-0 MAN AGEMENT D87*0 m w? m R-6 T PO RTO’-2 BIT DATA PROCESSING 7 1/32 I w * e - EXTERNAL MEMORY MANAGEMENT E= COUNTE CAR 1/0 DEVICE MANAGEMENT I . MM1OO MMIO I MMJ02 MMI03 MMI04 CSBOO CSB40 CSBCO CSBDO CSBEO CSBFO RAM _OL PROe B80 m BANKS-O ‘ANKDEcODER- CAR2 * THL D DI SC w RESET cIRCUIT MLT c Pu Figure A-14.
REV.-A Table A-7. E05A1 OAA Terminal Functions f% -.. . Function Pin No.
REV.-A Table A-7. EO5A1OAA Terminal Functions Function Pin No.
REV.-A A.1.1.7 E05A24GA This gate array IC has an 8-bit parallel l/F circuit and an expanded port function. GND P14 P13 P12 PIT Plo GND AFXT D7 D6 D5 D4 D3 D2 D1 DO GND CLK TESTEN DINO DIN1 DIN2 DIN3 DIN4 Vcc DIN5 DIN6 CIIN7 STE RXD INIT GND IOUT m m RST N.C. SLCT m SOUT WDOG m m m A2 Vcc Al AO SLCT IN PI% GND P23 RDY N.C. BUSY ACK N.C. ERROR N.C. PE GND P20 P21 P22 Figure A-15.
REV.-A Table A-8. E05A24GA Terminal Functions Pin No.
Table A-8. E05A24GA Terminal Functions Pin 27,22, 25, 18 14 41 17 45 No. I Name I 10 I NC o IOUT Cs RST SOUT I I o Function Not used Not used Chip select signal Reset signal Output Serial data .... .4.
REV.-A A.1.1.8 SI-7300A The SI-7300A is a unipolar constant current chopper type driver IC, and includes a control/drive circuit for a 4-phase stepper motor. n 0 S1-730 O n n Figure A-17. SI-7300A Pin Diagram ( 78 GND 7 V:c R~A A!N B?N BOUT 1 JT : Figure A-18.
REV.-A Table A-9. SI-7300A Terminal Functions Description Pin No.
REV.-A A.I.1.9 TL431 The TL431 is a high accuracy temperature compensated shunt regulator. The output voltage can be changed between 2.5 to 36V by adding two external resistors. The TL431 has high stability and outputs a large current so that it can replace various zener diodes. Features . Temperature compensated reference voltage (50PPM/”C TYP.) . Low zener current (400,uA TYP.) “ High response speed “ Low dynamic output impedance “ Low noise a r. u R .J .19. L. CATHODE ANODE REF Figure A-19.
REV.-A gn ... A.1.l.11 7486 A.1.1.1O 7406 Vcc 4B 14 13 4A 12 4y 11 30 3A 3Y 10 9 8 w w I Figure A-20. 7406 Pin Assignment Figure A-21. 7486 Pin Assignment A.1.1.12 75188 A.1.1.13 75189 . .. Vcc INPUT A OUTPUT A INPUT A Vcc RESPONSE CONTROL A INPUT D1 INPUT D2 OUTPUT A INPUT BI OUTPUT D INPUT B2 INPUT CI RESPONSE CONTROL B OUTPUT B INPUT C2 OUTPUT B GND INPUT B OUTPUT C GND $, .Vcc INPUT D RESPONSE CONTROL D OUTPUT D INPUT C RESPONSE CONTROL C OUTPUT C Figure A-23.
REV.-A A.1.2 MONPS/MONPSE Board Table A-10 shows the primary ICS used on the MONPS/MONPSE board. Table A-10. MONPS/MONPSE Board Primary ICS Description Reference Section Location IC Name Type Q5. Q20 TL431 CLPB Ic Adjustable Precision Shunt Regulator A. 1. 1.9 IC20 STR20005 Ic +5 V DC Chopper-type Switching Regulator A. 1. 2.
REV.-A A.1.2.1 STR20005 The STR20005 is a chopper type switching regulator IC which obtains a stable output voltage of +5V. 2 3 4 5 1 000== Figure A-24. STR20005 Pin Diagram 4 3 o TR I 0 T 2 ;R3 R2 ~ R4 MIC I k r–-‘ I I START I – < ‘+–-<‘ - - – – l , ,4. h i I CIRCUIT I I I o I REFER= I “ I I vOLTAGE I ; —cl R5 I I ~ 1- ————— > k. — — ——— ‘ ‘T 105 ! Figure A-25. STR20005 Equivalent Circuit Table A-1 1.
REV.-A A.2 CONNECTOR PIN ASSIGNMENTS Figure A-26 shows interconnections of the primary connectors and cables. Table A-12 gives a summary of each connector. NOTE : The signal directions for the connectors are as viewed from the JUNMM board, ~ –– – --7 ~ . –– .- 7 L w 1 -1 b + i? z o v tg k= ~– – – 5 v 1 I -7 , # 8100 SERIES [ I I IF BOARD I kd L– –––––J #8E4 or #8E5 g% .
&.-& ..... .. > Table A-1 2. Connector Summary JUNMM Description Destination Board Cable Reference Table CN1 1 CN2 I 36 26 CN3 I 44 CN4 6 CN5 4 Host computer . l/F 1-13 (8-bit parallel) #81 XX l/F board l/F — Not used Printer 1- (option) A-13 l– I — CR motor A-14 mechanism A-15 MONPS/MONPSE board Printer CS/RF motor — A-16 — A-17 - A-18 mechanism CN7 15 Printer Printhead (R) 1 ... A %.
REV.-A x I : LQ.1060 uses #8BX. x 2 : Metric screws are used. Inch screws are used in #8E5.
REV.-A Table A-13. CN2 Pin Assignments Pin No.
REV.-A Table A-16. CN6 Pin Assignments Pin No. Name 1/0 Description 1 CSRBA o Phase A drive pulse 2 CSRBB o Phase B drive pulse 3 CSRBC o Phase C drive pulse 4 CSRBD o Phase D drive pulse 5 COM o Common phases A to D 6 GND Ground 7 CSLED o +5 VDC 8 CSHOME I Color select sensor signal Table A-1 7. CN7 Pin No. Name 1/0 1 2 3 4 5 9 10 11 12 13 14 15 6. 7.
REV.-A Table A-1 9. CN9 Pin Assignments Description Pin No. Name 1/0 1. 2 GND — 3. 4 +5 I +5 VDC 5 +12 I +12 VDC 6 –12 I –12 VDC Ground Table A-20. CN1 O Pin Assignments Pin No. Signal 1/0 1 CRLED 2 GND o — 3 CRHOME I Description +5 VDC Ground Carriage home position signal T a b l e A - 2 1 . CN11 P i n A s s i g n m e n t s “ . Description Pin No. Signal 1/0 1 PELED — Not used 2 GND — Ground 3 PE I Paper end signal Table A-22. CN12 Pin Assignments Pin No.
REV.-A Table A-25. CN16 Pin Assignments Pin No.
REV.-A Table A-26. CN17 Pin Assignments Description 1/0 Pin No.
REV.-A Table A-27. CN18 Pin Assignments Pin No.
REV.-A A.3 DRAWINGS ---- - ; 3 : - - J32 J ., $ TI g-: 4 Figure A-27.
--—. J30 - - 33r --J32 - d IC20 r -m b 13 - G a TI El m C2 J24 ● L cl mow’ BLUE u 7“ Figure A-28.
,# . .2,; 1 . 1 1 - “1 A I b -:’2” ‘ Ozaz 1202 UOEE vu C-O ZZH’Z . I ● ———— Figure A-29.
REV.-A ... “. 818 %1 UXZO* A..*. N xl 8M ,“,,, . 93 OX*9* 118 xl Onz(b en J T Figure A-30.
t,, L — -- g,-. ,.. ..,. - . . . . ,.. ,. ‘+ ;; Figure A-31.
EPSON SEIKO EPSON CORPORATION PRINTER DIVISION EPSON OVERSEAS MARKETING LOCATIONS EPSON AMERICA, INC 2780 Lomita 81vd., Torrance, Calif. 90505, U.S.A Phone: (21 3) 539-9140 Fax: (21 3) 539-0953 EPSON DEUTSCH LAND GmbH Zulpicher StraBe 6,4000 Dtisseldorf 11 F. R. Germany Phone: (021 1 ) 56030 Fax: (21 1 ) 504-7787 EPSON UK LTD. Campus 100, Maylands Ave, EPSON FRANCE S.A. 68 bis, rue Marjolin 92300. Hemel Hempstead Hertfordshire, HP2 7EZ U.K.
