Related Manuals for Citizen BD2-3880
Summary of Contents for Citizen BD2-3880
- Page 1 User’s Manual CONTROL BOARD FOR MLT-388/MLT-389 BD2-3880/3890 MODEL Rev. 1.00 Newly Issued on October 22, 2004...
- Page 2 REVISION Rev. No. Date Content 1.00 2003.06.23 Issued as first edition. 1.00 2004.10.22 “3.3 CN3 Connector for Interface” changed...
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Page 3: Table Of Contents
CONTENTS 1. OUTLINE ........................1 1.1 Features ................................1 1.2 Precaution ................................. 1 2. BASIC SPECIFICATIONS ..................2 2.1 Model Classification ............................2 2.2 Basic Specifications............................3 3. CONNECTING CONNECTORS................. 4 3.1 CN1 Connector for Printer Mechanism ......................4 3.2 CN2 Connector for Print Mechanism ....................... 5 3.3 CN3 Connector for Interface .......................... - Page 4 8. ERROR HANDLING ....................17 8.1 Peripheral Circuit Errors ..........................17 8.2 Operation Errors ............................. 18 8.3 Error Indication .............................. 19 9. PRINTER MECHANISM CONTROL SYSTEM ............ 20 9.1 Thermal Head Control System ........................20 9.1.1 Fixed Division Number System ........................ 20 9.1.2 Variable Division Number System ......................
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Page 5: Outline
BD2-3880/3890 User’s Manual 1. OUTLINE This control boards is designed to be used to control our thermal printer, “MLT-388/389” 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. -
Page 6: Basic Specifications
BD2-3880/3890 User’s Manual 2. BASIC SPECIFICATIONS 2.1 Model Classification Models are identified by the following coding scheme: BD2 - 3890 U C Auto Cutter Drive C : With auto cutter function None : Without auto cutter function Character Set U : Internatiomal model Model Name of applied printer mechanism 3880 : For MLT-388 3890 : For MLT-389... -
Page 7: Basic Specifications
BD2-3880/3890 User’s Manual 2.2 Basic Specifications Items Contents Printing system Thermosensitive dot-matrix printing Print width 72 mm/576 dots Print Speed 7.2V: Approx. 60 mm/s within 64 dots, at 35°C or more 5V: Approx. 30 mm/s within 64 dots, at 63°C or more Font A : 48 columns Number of columns Font B : 64 columns... -
Page 8: Connecting Connectors
BD2-3880/3890 User’s Manual 3. CONNECTING CONNECTORS 3.1 CN1 Connector for Printer Mechanism Pin No. Signal Name Function –– Power for print head –– Power for print head Output Head data output signal –– Input Thermistor nSTRB 1 Output Strobe 1 nSTRB 2 Output Strobe 2... -
Page 9: Cn2 Connector For Print Mechanism
BD2-3880/3890 User’s Manual 3.2 CN2 Connector for Print Mechanism Pin No. Signal Name Function MOTOR B Output Operation signal for motor B MOTOR A Output Operation signal for motor A MOTOR B Output Operation signal for motor B MOTOR A Output Operation signal for motor A PE C... -
Page 10: Cn3 Connector For Interface
BD2-3880/3890 User’s Manual 3.3 CN3 Connector for Interface Pin No. Signal Name Function –– Power supply for circuit (5V) –– Power supply for circuit (5V) –– –– –– Power supply for operation –– Power supply for operation –– Power supply for operation ––... -
Page 11: Cn201 Connector For Paper Cutter (Option)
BD2-3880/3890 User’s Manual CAUTION: 1. For LED of ERROR and PE, there is a resister of 330 Ω on the circuit side to make the current value 10 mA. Please use LED with a forward voltage of approx. 2V. LED exceeding 10 mA may break a control board. -
Page 12: Selecting Functions
BD2-3880/3890 User’s Manual 4. SELECTING FUNCTIONS DIP SWITCH Pin No. Function Factory Setting Auto Cutter Enable Disable CR Mode LF Enable LF Disable Print Density Combination with J-6. See Table (3) Communication Mode XON/XOFF DTR/DSR See Table (1) Baud Rate JUMPER Pin No. - Page 13 BD2-3880/3890 User’s Manual (2) Font Selection International Character Open Open Open Japan (JIS) Open Open Short Japan (Shift-JIS) Open Short Open Sweden Open Short Short Denmark 1 Short Open Open U.K. Short Open Short Germany Short Short Open France Short Short Short U.S.A...
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Page 14: Power Supply
BD2-3880/3890 User’s Manual 5. POWER SUPPLY 5.1 Specifications VDD : 5V ±5% Approx. 130 mA : 4.2V ~ 8.5V Average: 1.5A (Peak: Approx. 4A) when 7.2V Operating votage is 7.2V (Max) 8.5V is a voltage only right after charging. 8.5V cannot be used for normal voltage. -
Page 15: Parallel Interface
BD2-3880/3890 User’s Manual 6. PARALLEL INTERFACE 6.1 Specifications Data input method : 8 bit parallel signal (DATA0~7) Control signals : nACK, BUSY, nSTB, nFAULT, PE, nRESET 6.2 Explanation of Input/Output Signals DATA0~7 : 8 bit parallel signal (Positive logic) nSTB : Strobe signal to read 8 bit data (Negative logic) nRESET : Signal to reset control board (Negative logic) -
Page 16: Electrical Characteristics
BD2-3880/3890 User’s Manual 6.3 Electrical Characteristics (1) Input Signal Level “HIGH” level : 0.7 VDD MIN “LOW” level : 0.3 VDD MAX (2) Output Signal Level “HIGH” level : VDD - 0.1V MIN “LOW” level 0.1V MAX (3) I/O Conditions nSTB, nRESET input signals are pulled up by 47 KΩ. -
Page 17: Timing Chart (Compatibility Mode)
BD2-3880/3890 User’s Manual 6.4 Timing Chart (Compatibility Mode) (1) Data Input and Printing Timing Power Suppl DATA nSTB BUSY nACK T1, T2, T3 : 0.5 µs (MIN) : 270 ns (MAX) : 2.3 µs (TYP) : 500 ms (MIN) *On supplying power 6.5 Data Receiving Control When BUSY signal is “LOW”, data from the host can be received. -
Page 18: Serial Interface
BD2-3880/3890 User’s Manual 7. SERIAL INTERFACE 7.1 Specifications (1) Data transfer system : Asynchronous (2) Baud rates 1200, 2400, 4800, 9600, 19200 bps (Selectable by user) (3) Configuration of one word Start bit 1 bit Data bit 8 bits Fixed Parity bit Odd/Even or No parity (Selectable by user) Stop bit... -
Page 19: Explanation Of Input/Output Signals
BD2-3880/3890 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. -
Page 20: Data Receiving Control
BD2-3880/3890 User’s Manual 7.4 Data Receiving Control When DTR/DSR control is selected, data from the host is received with DTR signal at “space” but not received with DTR signal at “Mark”. When XON/XOFF control is selected, data from the host is received after sending XON but cannot be received after sending XOFF. 7.5 Buffering Data transfer to the input buffer include DTR signals and TD signals as the control signals concerned. -
Page 21: Error Handling
BD2-3880/3890 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 The CPU made a self-diagnosis of the circuit and detected an error with the external Memory error RAM. -
Page 22: Operation Errors
BD2-3880/3890 User’s Manual 8.2 Operation Errors (1) Error types Error Description No paper The printing paper set is not set. Head-up The head-up lever is at its up position. * When MLT-388 is used. Platen not mounted Platen is not mounted. * When MLT-389 is used. -
Page 23: Error Indication
BD2-3880/3890 User’s Manual 8.3 Error Indication The errors other than no paper are indicated by a LED output (Illumination or blinking) of the Pin 18 (ERROR) of the CN3 (interface connector). Error Display Pattern Description Memory error Blinking cycle of 200 ms Blinking cycle of 150 ms (3 times) Cutter lock (Cutter error) and 500 ms (1 time). -
Page 24: Printer Mechanism Control System
BD2-3880/3890 User’s Manual 9. PRINTER MECHANISM CONTROL SYSTEM 9.1 Thermal Head Control System The MLT-388/MLT-389 (Line thermal printer) to be driven by this control board has a 576 dots/ line head divided into 9 blocks of 64 dots each. When actually driving the head, you can select either Fixed Division Number system, which drives the head, always dividing it into 9 blocks or Variable Division Number system which collectively drives several blocks at the time according to the number of activated head dots. -
Page 25: Motor Drive
BD2-3880/3890 User’s Manual 9.2 Motor Drive The MLT-388 and MLT-389 use a 4-phase bipolar stepping motor, which feeds paper by one dot line 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. -
Page 26: Maintenance And Service
BD2-3880/3890 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 Other Areas CBM America Corporation Japan CBM Corporation Service Center Information Systems Division 363 Van Ness Way Suite 404 CBM Bldg., 5-68-10, Nakano Torrance, CA 90501, U.S.A Nakano-ku, Tokyo, 164-0001, Japan... -
Page 27: Appendix 1. Block Diagram
BD2-3880/3890 User’s Manual APPENDIX 1. BLOCK DIAGRAM *Option Cutter CN201 FLASH MEMORY Driver Driver Dip switch Timing Driver Reset Control Power Supply Paper End Stepping VDD: 5V Head Up Operation Panel Motor (Power suply for Platen Sensor circuit) Parallel (Centronics) VP: 4.2 to 8.5V (Power suply for Serial (RC-232C) -
Page 28: Appendix 2. Outer Dimension
BD2-3880/3890 User’s Manual APPENDIX 2. OUTER DIMENSION φ 3 × 4 BD2-38 CN201 TA201 (CN3) CN201 IC101 (Unit: mm)
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