Specifications

ManualsBrandsEpson ManualsPrint & Scan570e - LQ B/W Dot-matrix Printer

Summary of content (49 pages)

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REV.-A CHAPTER 1 GENERAL DESCRIPTION ( 1.1 FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.2.1 Hardware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.2.2 Firmware Specifications . .
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REV.-A /’ 1.1 FEATURES The LQ-570+ is a small, light-weight, low-cost, printer with advanced paper handling that is upper corrmatible with the LQ-510/550 and compatible with the LQ-570/1070. The printets main features areas folbws: 1. 2. 3. 4. 5. 6. 7. 8. 9.
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REV.-A 1 I Model Table 1-2. Optional Units Description C806371(EAI ver.) I Single-bin cut sheet feeder(80-column) C806372(others) I Single-bin cut sheet feeder(80-column) C806381(EAI ver.) I High-capacity cut sheet feeder(80-column) C806382(others) I High-capacity cut sheet feeder(80-column) C800191(EAI ver.) I Tractor unit(80~lumn) C800192(others) I T r a c t o r unit(80adumn) 7753 I Fabric ribbon cartridge(80-column) 7768 I Fabric ribbon cattridae(80-column) 6 Figure 1-1.
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REV.-A ~- 1.2 SPECIFICATIONS This section provides specifications for the LQ-570+ printer. 1.2.1 Hardware Specifications Printing method Pin mnfiguration Serial, impact, dot matrix 24 wires (12x 2 staggered, diameter 0.
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REV.-A Table 1-3. Specifications for Cut Sheets ( Width Length Thickness Weight Quality 148 mm to 257 mm (5.8 in. to 10.1 in.) (top insertion) 182 mm to 257 mm (7.2 in. to 10.1 in.) (front insertion) 364 mm (14.3 in.), maximum 0.065 mm to 0.14 mm (0.0025 in. to 0.0055 in.) 14 lb to 24 lb (52.3 g/m’*2 to 90 g/m**2) plain paper or recycled paper(under normal temperature) Table 1-4. Specifications for Cut Sheets (Carbonless Duplicating Paper) Width Length Thickness Weight Quality Copies 182 mm to 216 mm (7.
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REV.-A ( 220240 V version Rated voltage 220 to 240 VAC Input voltage range 198 to 264 VAC Rated frequency 50 to 60 Hz Input frequency 49.5 to 60.5 Hz Rated current 1.0 A Power consumption Approx. 33W(during a self-test in draft mode,10 cpi) Insulation resistance 10 megohms, minimum(at 500 VDC between AC Iines and chassis).
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REV.-A (’ 1.2.2 Firmware Specifications Control code EPSON ESC/P 2( ESWPTM level 2: EPSON new control code for printers) IBM emulation mode (European version only)”l NOTE: ● 1 :The European version is equipped with the IBM emulation mode, Please refer to the emulation mode specification for details. Printing direction Input data buffer Character code Character tables Fonts and pitches Bit-map fonts.
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REV.-A See tables 1-8 and 1-9. See Table 1-8. See Table 1-10. See Table 1-10. Printing speed ~ printing COlumns Character matrix Character size Table 1-8. Printing Text Mode) Print Pitch 10 T m I 80 10 225 75 on I 137 17.
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REV.-A Table 1-9. Printing (Bit Image Mode) Pins Density (dpi) Bit Image Printing Mode Printable Dots Printing Speed (ips) 8 Single-density 60 480 22.5 8 Dual-density 120 960 11.2 8 Double-speed, dual-density 120 960 22.5 8 Quadrupledensity 240 1920 11.2 8 CRT graphics 80 640 11.2 8 CRT graphics II 90 720 15.0 24 Single-density 60 480 22.5 24 Dual-density 120 960 11.2 24 CRT graphios II 90 720 15.0 24 Tripledens”~ 180 1440 7.
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REV.-A Table 1-10. Character Matrix and Character Size (“ Printing Mode Face Matrix HDD Character S&e Unit ESC sp Draft, 10 pitch 9 x 22 120 1.9 x 3.1 120 Draft, 12 pitch 9x22 120 1.9 x 3.1 120 Draft, 15 pitch 7 X 16 120 1.0 X 2.3 120 Draft, 10 pitch, mndensed ------ 240 ------- 120 Draft, 12 pitch, oondensed ------ 240 . . . . . .. 120 LQ, 10 pitch 31 x 22 360 2.2 x 3.1 180 LQ, 12 pitch 27X 22 360 1.9 x 3.1 180 LQ, 15 pitch 22 X 360 1.6 X 2.
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REV.-A ~- 1.5 DIP SWITCHES AND JUMPER SETTING This section describes the DIP switch selections and jumper setting for the LQ-570+ printer. 1.5.1 DIP Switch Setting for ESC/P 2 mode This printer is”equipped with two banks of DIP-SWITCHES and they are located on the control panel. The tablel -12 through 1-15 shows the available function settings of two DIP switches. (Note that the status of the DIP switches is only read at power on or upon receipt of the /lNIT signal.) Table 1-12.
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REV.-A f Tdda . ---- 1.14. . . . Intamational . .. .----- —--— Character --—- .–. *t ~ktion Table 1-3 Country 1-1 1-2 ON ON ON Us. ON ON ON OFF OFF OFF OFF ON OFF OFF ON ON OFF OFF OFF ON OFF ON OFF ON OFF France Germany U.K. Denmark 1 Sweden Italy Spain 1 1I Others Europe 437 850 860 863 665 437Greek 653 852 + + + + B~-SCll Ab.komp 437 1I I I I I i ----...... I -— When SW 1-4 is ON. - - . . — . - When SW 1-4 is Off. NOTE: ● is not available on the European version(P0437 is selected).
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REV.-A (’ 1.5.2 DIP Switch Setting for IBM emulation mode In the IBM emulation mode, with the DIP awitch 1-6 to ON, some other awitches are recognized by the printer in different meanings from the ESC/P 2 mode. Please refer to the emulation mode specif.=tion for details. Table 1-16. Setting for DIP Switch 1 I Description No. I u I 2I I 1 3 Setting See the table 1-14 set 2 Graphic print direction ! Unidir.
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REV.-A (- 1.6.11 Printer Protection for Heavy-Duty Printing This printer has a printhead protection function to prevent it from overheating and to handle the printer when the head driver voltage drops. If head temperature exceeds its maximum value, printing stops automatically until the head temperature drops to a certain value before printing resumes. Printing resumes at a lower print speed at first. However, as the head temperature decreases, print speed increases to normal speed automatically.
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REV.-A 1.7 MAIN COMPONENTS The main mmponents of the LQ-570+ printer are designed for easy removal and replacement at maintenance and repair of the printer. The main composed of this printer are: the main control board; the CPU on this board controls all main functions. 1) C107 MAIN board: the control panel bowd. 2) C062 PNL board: 3) C062 PSWPSE board: the power supply board. 4) M-5J1O: the printer mechanism. Figure 1-11. LQ-570+ Component Layout 1.7.
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REV.-A ( 1.7.2 C062 PNL Board (Control Panel Circuit Board) The C062 PNL board is the LQ-570+ control panel, which includes the indicator LEDs, switches, and DIP switches. Figure 1-13. (X62 PNL Board 1.7.3 C062 PSB/PSE Board (Power Supply Circuit Board) The power supply unit consists of a switching regulator circuit, which mnverts the AC line vottage to the DC voltages (for example, +35V and +5V) used by the printer. The C062 PSB board is 120V input type, and the C062 PSE board is 220/240V input type.
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REV.-A ~ 1.7.4 Printer Meohanism (M-5J1O) The M-5J1o printer mechanism was developed specifically for use with LQ-570+ printer. The components inciude a carriige motor, carriage mechanism, paper-feed motor, paper-feed mechanism, ribbon-feed mechanism, printhead, and sensors. This printer mechanism ailows three ways of paper insertion. /“ Figure 1-15. Modei-6J10 Printer Mechanism 1.7.5 Housing The LQ-570+ housing consists of the upper, lower, and front cases. The front case houses the contmi panel board.
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CHAPTER 2 OPERATION PRINCIPLES 2.1 OVERVIEW OF PRINTER MECHANISM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.1.1 Printhead Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.3 CONTROL CIRCUIT OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 2.3.1 Control Cirouit Operation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 2.3.2 Reset Cirouit . . . . . . . .
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REV.-A {( 2.1 OVERVIEW OF PRINTER MECHANISM OPERATION This section describes the printer mechanism of the Model-5J10 printer unit and explains how the printer works. Model-5J10 has a printer mechanism that features a 24-pin impa~ dot printhead for serial printing. There are four main parts to the printer mechanism: 1) the printhead mechanism, 2) the carriage movement mechanism, 3) the paper advance mechanism, and 4) the ribbon advance mechanism. Each of these is described below. 2.1.
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REV.-A f 2.3 CONTROL CIRCUIT OPERATION The control circuit consists of two boards: the C107 MAIN board, which acts as the main board, and the C062 PNL board, which acts as the control panel board. This section describes how these boards work. 2.3.1 Control Circuit Operation Ovewiew The printer CPU is an 8-bit CPU TMP90C041 running at 10 MHz. It oversees control of all the components of the printer.
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REV.-A ‘) Table 2-5 lists the functions of the main components and circuits of the printer. The CPU converts the print data sent from the host mmputer to image data (the print image). The image data is then loaded to RAM. Each line of data is processed sequentially. The CPU transfera the print data to the printhead drive circuit. The CPU sends the printhead drive pulse to the printhead drive circuit. The length of this pulse corresponds to the printhead drive voltage.
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REV.-A Table 2-5. Functions of the Main IC and Circuits (Cont.) Functions IC or Circuit Location PROM IC14 PROM contains the program that runs the CPU. RAM IC15 IC16 Holds the CPU working area and the various buffers. (1E is not used for an 80column device and is not installed.) MROM (Mask ROM) IC17 IC18 Holds the character design (also called the character generator). EEPROM IC12 EEPROM is an electronically writable and erasable ROM used to hold such information as the TOF position.
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REV.-A Power On CpU Self Reset t 4 +6 V Line VCCOM I I u THLD ??EStt Figure 2-20. /F?ESET Signal Timing 2.3.3 Sensor Circuits Figure 2-21 shows thesensorcircuits block diagram. Detection of any excessive printheadtemperature causes the TEMP2 signal to be sent directly to the CPU. Other signals, such as the CRHOME signal, pass through the each low path filters before reaching the CPU. Terminals P50 to P55 on the CPU are used for the ND mnvertor.
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REV.-A 2.3.4 MOTOR, CR Drive Circuit Figure 2-22 shows the MOTOR, CR driie circuit. An open-loop, constant-current drive control is used to drive the MOTOR, CR. The motor is driven by 2-2 phase excitation and 1-2 phase excitation. 2-2 phase excitation corresponds to two 1-2 phase excitation steps. Thus, for each single step phase change of a 2-2 phase excitation motor, the carriage moves 1/120 inch. For each single step phase change of a 1-2 phase excitation motor, the carriage moves 1/240 inch.
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REV.-A “) 2.3.5 MOTOR, PF Drive Circuit The printer uses a stepping motor to advance the paper. The paper can be advanced for minimum of 1/380 inch. The nmtor is a 2-2 phase or 1-2 phase, constant-voltage drive type. P70 to P73 on the CPU are the phase oontml ports forthe stepping motor. MOTOR, PF phase data output through these ports. Cl to C4 are turned on and off within the PU1501(IC3) acoording to the phase data sent from the CPU.
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REV.-A ‘\ 2.3.6 Printhead Drive Circuit Figure 2-24 shows the printhead drive circuit block diagram. The print data already is expanded to create the image data. The CPU splits up this data three times and transfers this information to the latch circuit within the Head Gate Array(lC2). The CPU samples the voltage of the +35 V line via the A/D convertor (see Section 2.3.3). The CPU outputs a pulse via the CPU time output pori P63. The length of this pulse corresponds to the voftage of the +35 V line.
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REV.-A ‘) CHAPTER 3 DISASSEMBLY AND ASSEMBLY 3.2.1 Changing the Printhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.3 Removing the Eleotrkal Cirouitty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.3.1 Removing the BOARD ASSY.,MAIN (C107 MAIN Board) . . . . . . . . . . . . . . . . . 3.2.3Q Removing the BOARD ASSY.,POWER SUPPLY (C062 PSWPSE Boami) . . . . . 3.2.3.3 Removing the BOARD ASSY.,PANEL (C062 PNL Board) . . . . . .
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REV.-A 3.2.1 Removing the Circuit Boards ) 1. 2. Remove the FRAME ASSY.,SHEET GUIDE. Remove the COVER ASSY.,EJECT. COVERASSY.,EJECT ASSY.,SHE= GUIDE Figure 3-2. Removing the FRAME ASSY., ;HEET GUIDE and the COVER ASSY., EJECT 3. 4. Release the two levers that hold the printhead to the oarriage, and remove the printhead. Remove the two FFCS (CABLE, HEAD, FRONT(,REAR)) from the printhead. prifIthead Figure 3-3.
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REV.-A 3.2.3 Removing the Circuit Boards ) This section describes how to remove the BOARD ASSY.,MAIN (C107 MAIN board), the BOARD ASSY.,POWER SUPPLY (C062 PSB/PSE board) and the BOARD ASSY.,PANEL (C062 PNL board). 3.2.3.1 Removing the BOARD ASSY.,MAIN (C107 MAIN Board) 1. 2. 3. 4. Remove the HOUSING ASSY.,UPPER (see Section 3.2.2.2). Remove the CB (M3 X 6) screw that hold the HOLDING PLATE,FFC to the SHIELD PLATE,MAIN BOARD, and remove it.
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REV.-A CBB(C) (M3X 10) Screws CB (M3X8)’Screw BOARD ASSY., MAIN Figure 3-7. BOARD ASSY.,MAIN Adjustment Required When replacing the BOARD ASSY.,MAIN, you must adjust the bidirectional print position again to ensure bidirectional printing is mrrectly aligned 3.2.3,2 Removing the BOARD ASSY.,POWER SUPPLY (C082 PSB/PSE Board) 1. 2. 3. 4. Remove the HOUSING ASSY.,UPPER (see Section 3.2.2.2).
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“’) CHAPTER 4 ADJUSTMENTS 4.3 CIRCUIT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.1 Adjustment Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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REV.-A ‘) 4.3 CIRCUIT ADJUSTMENT The C107 MAIN board contains variable resistor VR1, which is used for balancing the circuitry. When any of the following parts are replaced, the circuitry must be balanced by adjusting the VR1. R6, R7, TL431(IC1), and VR1 If the circuitry is not properly adjusted, the CPU A/D converter functions abnormally and causes irregular operation of the printer. 4.3.1 Adjustment Process Attach a digital multimeter to the check terminal TP1 (Vref voltage) on the C107 MAIN board.
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CHAPTER 5 TROUBLESHOOTING ) BY UNIT REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 5.4 REPAIR OF THE MAIN BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14 5.5 REPAIR OF THE PRINTER MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17 5.2 REPAIR LIST OF FIGURES Figure S2. Printhead Resistance . . . . . . . . . . . . . . . . . . . . .
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\ REV.-A 0 o #3 o #5 o #7 o #9 o #11 o *13 o o o o it21 o 423 #1 # 2 0 # 4 0 N60 # 8 0 o 0 0 0 0 0 0 H 240 ( 86 410 418 #122 ‘- *7 82 83 #17 H19 Wire Assignment Coil Resistance: 45.5 *3.2 fl at 25*C (Between each dot wire and common.] ( Terminal Assignment J Figure 5-2.
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REV.-A ) 5.3 REPAIR OF THE MAIN BOARD This section provides instructions for repairing the main board when it is defective and describes variius symptoms, likely causes, and checkpoints. Checkpoints refer to proper waveforms, resistance values, and other values to be checked to evaluate the operation of any component that might be bad. Check these values and take the appropriate action. Table 5-4.
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‘) Tabla the .-.Main Circuit—-—Board ----- 5-4. - . . .Ranair .- .1- . . nf -. ---—... ------— ,—(Continued —-----–—. . . .
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REV.-A ‘? Table of the Main Circuit Board (Continued) —— =. Rebair .
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REV.-A ‘) 5.5 REPAIR OF THE PRINTER For detailed procedures for replacing or adjusting parts, refer to Chapter 3, Dimssemb/yandAswmb/y, and Chapter 4, Ao@hr?ent. If a problem or symptom recurs following an attempted repair, refer to Table 5-5 to try to find other potential causes. Table -. ReDair of the Printer Mechanism . Problem ‘) Symptom Cauae Checkpoint Solution The carriage The carriage motor Foreign substances Manually move the motor fails to operate.
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REV.-A ) Tahln . . . . . . . . . . . . . .(Continued} . .\. --..-..--——, . ---- -K . -.Rannir . .- ~-..nf-.tha . . . Printar . . . . . . . Maehanism Problem Self-test printing is abnormal. Symptom A particular dot fails to print. The printing is too light, or the print density is not uniform. Cause Printing is petiormed, but the paper is not fed, or is not fed uniformly. Solution Measure the coil resistance of the printhead. The normal value is approximately 45.5 ohms. Replace the printhead.
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REV.-A TsIhla Mechanism , . . . , —-- —.. .— --- (Continued) . ---- 5-!5. - -- Ranair ------- nf -- Printer - ------- ---- ‘1 Problem The ribbon feed is abnormal. ‘) Paper becomes stained. Printing mntinues after the paper ends or when no paper is loaded. Symptom Cause Checkpoint Solution The ribbon cartridge is defective. Dismount the ribbon cartridge, rotate its knob manually, and check whether the ribbon feeds normally. Replace the ribbon cartridge. Foreign substances are caught in the gears.
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REV.-A APPENDIX Al CONNECTOR SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.2 CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.3 CIRCUIT BOARD COMPONENT LAYOUT . . . . . . . . . . . . . . . . . . . A.4 EXPLODED DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.5 CASE OUTLINE DRAWING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 . . . . . . . . . . . . . . . . . . . . . . . . A-5 A-12 ................
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REV.-A A.1 CONNECTOR SUMMARY Figure A-1 illustrates the interconnection of the primary components. Table A-1 summarizes the functions and sizes of the connectors. ImF7 ‘ I(COGZ PNL I I G A P p30ARD) Model 5J-10 PRINTER MECHANISM LEVER CRHOME A I’b A PE-2 PE-I CRMOTORPFMOTOR HEAD H E A D I A 4 b 4 t CN3 r v v 1 v v v CN11 ] ICN121 I CN8 ] I CN9 I ICN1OI I CN4 I I CN5 w CN6 BOARD ASSY.
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REV.-A Tabla . ---- A-1. - . -. Board ———- — Connector —- ----- —-— —Summarv. ‘\ Board Funotion Conneotor Pins BOARD ASSY.,PANEL CN1 BOARD ASSY.,MAIN 12 BOARD ASSY.,POWER SUPPLY CN1 CN2 AC power input DC power output 2 11 BOARD ASSY.,MAIN (C107 MAIN BOARD) CN1 CN2 CN3 CN4 CN5 CN6 CN7 CN8 CN9 CN1O CN11 CN12 CN13 Parallel interface Optional interface card Control panel MOTOR,CR MOTOR,PF Printhead Printhead DETECTOR ASSY.,HP DETECTOR ASSY.,PE,REAR DETECTOR ASSY.,PE,FRONT DETECTOR ASSY.
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REV.-A ) Table A-2 CN2 BOARD ASSY., MAIN (C107 MAINI . R.
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REV.-A ) Tabla A-13. CN13 BOARD ASSY. MAIN 4C107 MAIN) Table A-7. CN7 BOARD ASSY. MAIN [C107 MAIN’ No. 1/0 1 -) 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 0 0 0 0 0 0 0 0 0 0 0 Signal Name HD3 HD1 1 HD2 HD19 HD7 COM COM COM HD22 HD15 HD18 HD23 HD1O HD14 HD6 No. 1/0 Function Head data 3 Head data 11 Head data 2 Head data 19 Head data 7 Common Common Common Head data 22 Haad data 15 Head data 18 Head data 23 Head data 10 Head data 1 4 Head data 6 1 2 3 4 5 6 7 8 9 10 11 Table A-8. CN8 BOARD ASSY.
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REV.-A , A.5 CASE OUTLINE DRAWING H-II J i—--- 1- 434 mm 4 ) Figura A-17.
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REV.-B I ml I i — —I 00001 00001 I 1’ Donut 1 1 I 1 1 o . — * _====! 151 m Figure A-18.
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EPSON