User`s manual

ManualsBrandsCitizen ManualsComputer equipmentBD2-3890

CONTROL BOARD FOR MLT-388/MLT-389

MODEL

BD2-3880/3890

Rev. 1.00

Newly Issued on October 22, 2004

User’s Manual

Summary of content (28 pages)

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User’s Manual CONTROL BOARD FOR MLT-388/MLT-389 MODEL BD2-3880/3890 Rev. 1.
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REVISION Rev. No. 1.00 1.00 Date 2003.06.23 2004.10.22 Content Issued as first edition. “3.
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CONTENTS 1. OUTLINE ....................................................................................................................... 1 1.1 Features ............................................................................................................................................................ 1 1.2 Precaution ......................................................................................................................................................... 1 2. BASIC SPECIFICATIONS ..
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8. ERROR HANDLING .................................................................................................. 17 8.1 Peripheral Circuit Errors ................................................................................................................................ 17 8.2 Operation Errors ............................................................................................................................................. 18 8.3 Error Indication ...........................................
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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. (3) Input buffer incorporated.
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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 Model Name * Printer model is specified by J8 (jumper).
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BD2-3880/3890 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 temperature and humidity Storage temperature and humidity Contents Thermosensitive dot-matrix printing 72 mm/576 dots 7.2V: Approx. 60 mm/s within 64 dots, at 35°C or more 5V: Approx.
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BD2-3880/3890 User’s Manual 3. CONNECTING CONNECTORS 3.1 CN1 Connector for Printer Mechanism Pin No.
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BD2-3880/3890 User’s Manual 3.2 CN2 Connector for Print Mechanism Pin No.
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BD2-3880/3890 User’s Manual 3.3 CN3 Connector for Interface Pin No.
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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. 2. Power supply for circuit (VDD and GND) requires feeding to only one pin. However, power supply for driver circuit (VP and P-GND) requires feeding to all pins to secure the capacity. 3.
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BD2-3880/3890 User’s Manual 4. SELECTING FUNCTIONS DIP SWITCH OFF ON Factory Setting Pin No. Function 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 Auto Cutter CR Mode Print Density Communication Mode Enable Disable LF Enable LF Disable Combination with J-6. See Table (3) XON/XOFF DTR/DSR Baud Rate See Table (1) Pin No.
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BD2-3880/3890 User’s Manual (2) Font Selection J-3 J-2 J-1 International Character 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 DS3 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% (3) Print Density CAUTION: 1. Input Buffer is 2k byte.
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BD2-3880/3890 User’s Manual 5. POWER SUPPLY 5.1 Specifications VDD : 5V ±5% Approx. 130 mA VP : 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. 5.2 Precautions (1) Design the product to supply power to VDD before VP when power is supplied to this control board. (2) Design the product to turn off the power for VDD after VP when power is turned off.
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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) nACK : 8 bit data request signal.
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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. Other input signals are pulled up by 50 KΩ. [Printer side] VDD [Host side] TWIST PAIR WIRE * First “n” of signal name indicates “L” active signal.
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BD2-3880/3890 User’s Manual 6.4 Timing Chart (Compatibility Mode) (1) Data Input and Printing Timing Power Supply DATA T2 nSTB T1 T3 T6 T4 BUSY nACK T5 T1, T2, T3 T4 T5 T6 : 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. When it being “HIGH”, data cannot be received. 6.6 Buffering This control board incorporates 2K byte buffer.
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BD2-3880/3890 User’s Manual 7. SERIAL INTERFACE 7.
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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. Data can be written into the input buffer even when the printer is busy printing.
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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. (1) DTR signals [See 7.2 (2)] (2) TXD signals [See 7.2 (3)] 7.
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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 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-230-5V) is not connected to the cutter connector (CN201).
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BD2-3880/3890 User’s Manual 8.2 Operation Errors (1) Error types Error No paper Head-up Platen not mounted VP voltage error Head temperature error Cutter lock (ACS-230-5V) Description The printing paper set is not set. The head-up lever is at its up position. * When MLT-388 is used. * When MLT-389 is used. Platen is not mounted. A VP voltage is beyond its allowable range (4.2 to 8.5V) A head temperature is less than 0˚C or 65 ˚C or higher.
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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 Blinking cycle of 200 ms Memory error Blinking cycle of 150 ms (3 times) and 500 ms (1 time). Cutter lock (Cutter error) Head-up *MLT-388 Platen not mounted *MLT-389 Illuminated until reverted VP voltage error Illuminated until reverted Blinking cycle of 1 sec.
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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.
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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. 3) Provides acceleration control at the time of start. 9.2.2 Maximum Motor Drive Speed at Major Voltage VP Voltage 5V 6V 7.
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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 CBM America Corporation Service Center 363 Van Ness Way Suite 404 Torrance, CA 90501, U.S.A Other Areas Japan CBM Corporation Information Systems Division CBM Bldg.
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BD2-3880/3890 User’s Manual APPENDIX 1. BLOCK DIAGRAM *Option Cutter CN201 FLASH MEMORY OSC RAM ROM Driver Dip switch Driver CN1 Timing Driver Reset VH CN3 Operation Panel Parallel (Centronics) Serial (RC-232C) VDD VP Power Supply VDD: 5V (Power suply for circuit) VP: 4.2 to 8.
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BD2-3880/3890 User’s Manual APPENDIX 2. OUTER DIMENSION φ3×4 BD2-38 IC1 IC2 CN1 80 72 CN3 TR2 TA1 IC6 TA2 TA2 CN2 CN201 4 4 82 90 (CN3) 12 TA201 CN201 IC101 1.