User`s manual

ManualsBrandsCitizen ManualsComputer equipmentBD2-2890

CONTROL BOARD FOR MLT-288/MLT-289

MODEL

BD2-2880/2890

Rev. 1.10

Newly Issued on June 23rd, 2003

User’s Manual

Summary of content (27 pages)

PAGE 1
User’s Manual CONTROL BOARD FOR MLT-288/MLT-289 MODEL BD2-2880/2890 Rev. 1.
PAGE 2
REVISION Rev. No. 0.00 1.00 1.10 Date 2000.06.26 2002.08.09 2003.06.23 Content Newly authored as a tentative edition for CS products reference. Cover, Page 1, 2, 3, 7, 9 is changed. Chapters 11 (Print Control Functions) and 12 (Character Code Table) are deleted.
PAGE 3
CONTENTS 1. OUTLINE ........................................................................................................................ 1 1.1 Features ............................................................................................................................................................. 1 1.2 Precaution .......................................................................................................................................................... 1 2.
PAGE 4
8. ERROR HANDLING ................................................................................................... 16 8.1 Peripheral Circuit Errors ................................................................................................................................. 16 8.2 Operation Errors .............................................................................................................................................. 16 8.3 Errors Indication .......................................
PAGE 5
BD2-2880/2890 User’s Manual 1. OUTLINE This control boards is designed to be used to control our thermal printer, “MLT-288/289” series through the computer etc. As being provided with many abundant functions, it can be used widely in various applications. Before you start using it, read this manual thoroughly and understand the content. 1.1 Features (1) Ultra compact (2) Both interface of Serial and Parallel can be selected by dip switch. (3) Input buffer incorporated.
PAGE 6
BD2-2880/2890 User’s Manual 2. BASIC SPECIFICATIONS 2.
PAGE 7
BD2-2880/2890 User’s Manual 2.2 Basic Specifications Items Printing system Print width Print Speed Number of columns Character dimensions Character types Bar code type Line pitch Interface Input buffer Supply voltage Weight Outer Dimension Operating Environment Storage Environment Contents Thermosensitive dot-matrix printing 48 mm 420 dot line/sec Font A : 32 columns Font B : 42 columns Font A : 1.25 mm × 3.00 mm Font B : 0.88 mm × 3.
PAGE 8
BD2-2880/2890 User’s Manual 3. CONNECTING CONNECTORS 3.1 CN1 Connector for Printer Mechanism (For Print Head) Pin No.
PAGE 9
BD2-2880/2890 User’s Manual 3.3 CN3 Connector for Interface Pin No.
PAGE 10
BD2-2880/2890 User’s Manual CAUTION: 1. For LED of ERROR and PE, there is a resister of 330Ω on the circuit side to make current 2. 3. 4. 5. value 10 mA. Please use LED which its voltage is approx. 2V. LED over 10 mA may break a control board. Control circuit requires power supply only for one pin of each VCC and GND. However, Operation voltage is to be supplied to all of pin for safety use. Serial interface equips a driver and receiver of RS-232C, make sure to use it at RS-232C level.
PAGE 11
BD2-2880/2890 User’s Manual 4. DIP SWITCH SETTING (1) DIP SWITCH OFF ON Factory Setting Pin No. Function DS1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 Auto Cutter CR Selection Print Density DTR/XON-XOFF Baud Rate Enable Disable LF Enable LF Disable Combination with J-6 (See next page (5)) XON-XOFF DTR/DSR " " " See below (3) OFF ON OFF OFF OFF OFF OFF OFF (2) JUMPER Pin No.
PAGE 12
BD2-2880/2890 User’s Manual (4) INTERNATIONAL CHARACTER SET J-3 J-2 J-1 InternationalCharacter Open Open Open Open Short Short Short Short Open Open Short Short Open Open Short Short Open Short Open Short Open Short Open Short Japan (JIS) Japan (Shift-JIS) Sweden Denmark 1 U.K. Germany France U.S.A DS1-3 J-6 Print Density Level Print Density Rate OFF OFF ON ON Open Short Open Short Light Standard Slightly Dark Dark 0 1 2 3 80% 100% 120% 150% (5) PRINT DENSITY Note: 1.
PAGE 13
BD2-2880/2890 User’s Manual 5. POWER SUPPLY 5.1 Specifications VCC : 5V ±5% Approx. 130 mA VP : 4.2V ~ 8.5V Approx. 1.5A (Peak : Approx. 4A) when 7.2V Ordinal Voltage is to be 7.2V (Max). 8.5V is a voltage that is right after charging. 8.5V cannot be used for ordinal voltage. 5.2 Precautions (1) Design the product to supply power to Vcc before VP when power is supplied to this control board. (2) Design the product to turn off the power for Vcc after VP when power is turned off.
PAGE 14
BD2-2880/2890 User’s Manual 6. PARALLEL INTERFACE 6.1 Specifications Data input method : 8 bit parallel signal (DATA0~7) Control signals : ACK, BUSY, STB, FAULT, PE, RESET 6.2 Explanation of Input/Output Signals DATA0~7 : 8 bit parallel signal (Positive logic) STB : Strobe signal to read 8 bit data (Negative logic) RESET : Signal to reset control board (Negative logic) ACK : 8 bit data request signal.
PAGE 15
BD2-2880/2890 User’s Manual (3) I/O Conditions STB, RESET input signals are pulled up by 3.3K . Other input signals are pulled up by 50K . [Host side] [Printer side] VCC TWIST PAIR WIRE All the output signals are pulled up by 50K [Host side] [Printer side] VCC TWIST PAIR WIRE 6.4 Timing Chart (1) Data Input and Printing Timing Power Supply DATA T2 STB T1 T3 T6 T4 BUSY BUSY ACK T5 T1, T2, T3 T4 T5 T6 11 : 0.5 µs (MIN) : 270 ns (MAX) : 2.
PAGE 16
BD2-2880/2890 User’s Manual 6.5 Data Receiving Control When BUSY signal is “LOW”, data from the host can be received. When it being “HIGH”, data cannot be received. 6.6 Buffering This control board incorporates 2K byte buffer. Therefore, big data can be buffered in input buffer, and the host side can be released immediately.
PAGE 17
BD2-2880/2890 User’s Manual 7. SERIAL INTERFACE 7.
PAGE 18
BD2-2880/2890 User’s Manual 7.2 Explanation of Input/Output Signals (1) RXD Serial receiving data signal. On occurrence of framing error, overrun error, or parity error, the data is printed as “?”. (2) DTR When this signal is READY, write data or a command. When they are written in BUSY, overrun error is occurred and data is ignored. Data can be written into the input buffer even when the printer is busy printing.
PAGE 19
BD2-2880/2890 User’s Manual 7.5 Buffering Data transfer to the input buffer include DTR signals and TD signals as the control signals concerned. (1) DTR signals (See the page 7.2 (2)) (2) TXD signals (See the page 7.2 (3)) 7.
PAGE 20
BD2-2880/2890 User’s Manual 8. ERROR HANDLING 8.1 Peripheral Circuit Errors These errors are detected at power-on or initialization just after a reset. (1) Error types Error Description Memory error Cutter error The CPU made a self-diagnosis of the circuit and detected an error with the external RAM. With the auto cutter enabled at the function selection terminal (DS1-1), the auto cutter (ACS-220-5V) is not connected to the cutter connector (CN4).
PAGE 21
BD2-2880/2890 User’s Manual Pin No Signal Name 20 21 22 27 37 38 ERROR PE OUT DTR BUSY PE FAULT Remarks LED output. For a blinking (Lighting) pattern, see 8.3 Error Indication. LED output. This is always output at the time of no paper. Serial interface Parallel interface Parallel interface Parallel interface (3) Resetting methods Error Resetting Method Set the paper. See Note 1. Bring down the head-up lever. Set to a voltage within the allowable range (4.2 to 8.5V) and turn on the power again.
PAGE 22
BD2-2880/2890 User’s Manual 8.3 Errors Indication The errors other than no paper are indicated by a LED output (Illumination or blinking) of the Pin 20 (ERROR) of the CN3 (Interface connector). Error Display Pattern Description Blinking cycle of 200ms Memory error Blinking cycle of 150ms(3 times) and 500ms(1 time). Cutter lock (Cutter error) Head –up Illuminated until reverted VP voltage error Illuminated until reverted Blinking cycle of 1 sec. Head temperature error Blinking cycle of 500ms.
PAGE 23
BD2-2880/2890 User’s Manual 9. PRINTER MECHANISM CONTROL SYSTEM 9.1 Thermal Head Control System (Division Driving System) The MLT-288 (Line thermal printer) is driven by this control board has a384 dots/line head divided into 6 blocks of 64 dots each.
PAGE 24
BD2-2880/2890 User’s Manual 9.2 Motor Drive The MLT-288 uses a 4-phase bipolar stepping motor. It feeds the 1 dot line worth of paper in two steps by 2-to-2 phase excitation. 9.2.1 Motor Drive Features 1) Drive at an optimum drive speed by the VP voltage. 2) Prevents heat generation of the motor by PWM control to restrain current consumption. 3) Provides acceleration control at the time of start. 9.2.2 Maximum Motor Drive Speeds at Major Voltage VH Voltage 5V 6V 7.
PAGE 25
BD2-2880/2890 User’s Manual 10. MAINTENANCE AND SERVICE For the information on maintenance and service, please contact our dealer or at the following address. Northern America CBM America Corporation Service Center 363 Van Ness Way Suite 404 Torrance, CA 90501, U.S.
PAGE 26
BD2-2880/2890 User’s Manual APPENDIX 1. BLOCK DIAGRAM Cutter OSC 16.
PAGE 27
BD2-2880/2890 User’s Manual APPENDIX 2. OUTER DIMENSION ø2×4 BD2–288 IC2 IC1 CN1 75 67 CN3 TR2 IC6 CN4 TA2 CN2 TA2 4 72 80 TA2 12 IC101 1.