CITIZEN SYSTEMS AMERICA BD2-3880UC

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Part Number BD2-3880UC
Manufacturer CITIZEN SYSTEMS AMERICA
Category Tools and Supplies »  Development Kits and Tools
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Description

Control Boards Is Designed To Be Used To Control Our Thermal Printer
BD2-3880UC

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Specifications

Manufacturer Citizen Systems America
Manufacturers Part # BD2-3880UC
Sub-Category Development Kits and Tools
Series CB
Factory Pack Quantity 1

Datasheet

Download "BD2-3880UME_100.pdf" (237 KiB)

Extracted Text

User’s Manual CONTROL BOARD FOR MLT-388/MLT-389 MODEL BD2-3880/3890 Rev. 1.00 Newly Issued on October 22, 2004 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 i 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 ............................................................................................................................ 6 3.4 CN201 Connector for Paper Cutter (Option) ................................................................................................... 7 4. SELECTING FUNCTIONS ......................................................................................... 8 5. POWER SUPPLY ........................................................................................................ 10 5.1 Specifications ................................................................................................................................................. 10 5.2 Precautions ..................................................................................................................................................... 10 6. PARALLEL INTERFACE .......................................................................................... 11 6.1 Specifications ................................................................................................................................................. 11 6.2 Explanation of Input/Output Signals .............................................................................................................. 11 6.3 Electrical Characteristics ................................................................................................................................ 12 6.4 Timing Chart (Compatibility Mode) .............................................................................................................. 13 6.5 Data Receiving Control .................................................................................................................................. 13 6.6 Buffering......................................................................................................................................................... 13 7. SERIAL INTERFACE ................................................................................................ 14 7.1 Specifications ................................................................................................................................................. 14 7.2 Explanation of Input/Output Signals .............................................................................................................. 15 7.3 Error Detection ............................................................................................................................................... 15 7.4 Data Receiving Control .................................................................................................................................. 16 7.5 Buffering......................................................................................................................................................... 16 7.6 Electrical Characteristics ................................................................................................................................ 16 ii 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 ............................................................................................................ 20 9.2 Motor Drive .................................................................................................................................................... 21 9.2.1 Motor Drive Features ................................................................................................................................ 21 9.2.2 Maximum Motor Drive Speed at Major Voltage ....................................................................................... 21 10. MAINTENANCE AND SERVICE........................................................................... 22 APPENDIX 1. BLOCK DIAGRAM .............................................................................. 23 APPENDIX 2. OUTER DIMENSION ........................................................................... 24 iii 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. (4) Bar code printing is available (dedicated command). (5) Auto paper cutter control incorporated (option). (6) User-defined character registration function (94 characters) (7) Low cost 1.2 Precaution (1) Make sure to turn OFF the power supply in case of connecting/disconnecting the connectors. (2) Absolutely do not make a short circuit between the terminals of connectors. (3) Use power supply, LED, interface, etc. following their specifications. (4) Use the recommended paper shown below. • Thermal Paper TF50KS-E2D (Nippon paper) KF50-HDA (Shin-Oji paper) F220VP (Mitsubishi paper) or the equivalent 1 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). 2 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 Font A : 1.25 mm × 3.00 mm Character dimensions Font B : 0.88 mm × 3.00 mm Character types Alphanumeric, international characters Bar code type UPC-A/E, JAN (EAN) 13/8 columns, ITF, CODE 39, CODE128, CODABAR Line pitch 4.23 mm (Can be changed by command) Interface Serial (Conforms to RS-232C) or Parallel (Conforms to Centronics) (Selectable by dip switch) Input buffer 2 K bytes Logic part: 5V ±5% Approx. 130 mA (At ANK slide printing) Drive unit: 4.2V ~ 8.5V Average: 1.5A (Peak: Approx. 4A) Supply voltage Operating votage is 7.2 V (Max) 8.5 V is a voltage only right after charging. 8.5V cannnot be used for normal voltage. Weight Approx. 40 g Outer Dimension 80 mm (W) × 90 mm (D) (For height of component parts, see outer drawing.) Operating temperature 5 ~ 40˚C , 35 ~ 85% RH (with no dew condensation) and humidity Storage temperature and –20 ~ 60˚C , 10 ~ 90% RH (with no dew condensation) humidity 3 BD2-3880/3890 User’s Manual 3. CONNECTING CONNECTORS 3.1 CN1 Connector for Printer Mechanism Pin No. Signal Name I/O Function 1 VH –– Power for print head 2 VH –– Power for print head 3 SI Output Head data output signal 4 GND –– GND 5 TM Input Thermistor 6 nSTRB 1 Output Strobe 1 7 nSTRB 2 Output Strobe 2 8 nSTRB 3 Output Strobe 3 9 VDD –– Thermal head logics power (+5V) 10 nLATCH Output Latch signal 11 GND –– GND 12 nSTRB 9 Output Strobe 9 13 CP Output Clock pulse 14 GND –– GND 15 nSTRB 8 Output Strobe 8 16 nSTRB 4 Output Strobe 4 17 nSTRB 5 Output Strobe 5 18 nSTRB 6 Output Strobe 6 19 GND –– GND 20 nSTRB 7 Output Strobe 7 21 GND –– GND 22 GND –– GND 23 GND –– GND 24 VH –– Power for print head 25 VH –– Power for print head 26 VH –– Power for print head 27 VH –– Power for print head 28 VH –– Power for print head Applicable Connector: 52806-2810 (Molex) * First “n” of signal name indicates “L” active signal. 4 BD2-3880/3890 User’s Manual 3.2 CN2 Connector for Print Mechanism Pin No. Signal Name I/O Function 1 MOTOR B Output Operation signal for motor B 2 MOTOR A Output Operation signal for motor A 3 MOTOR B Output Operation signal for motor B 4 MOTOR A Output Operation signal for motor A 5 PE C Input Photointerruptor collector (Paper sensor) 6 GND –– Photointerruptor emitter + cathode 7 PE A –– Photointerruptor anode (Paper sensor) Platen not mounted signal (MLT-389) 8 H-UP Input Head-up signal (MLT-388) 9 GND –– Head-up sensor GND Applicable Connector: 53047-0910 (Molex) 5 BD2-3880/3890 User’s Manual 3.3 CN3 Connector for Interface Pin No. Signal Name I/O Function 1 VDD –– Power supply for circuit (5V) 2 VDD –– Power supply for circuit (5V) 3 GND –– GND 4 GND –– GND 5 VP –– Power supply for operation 6 VP –– Power supply for operation 7 VP –– Power supply for operation 8 VP –– Power supply for operation 9 VP –– Power supply for operation 10 VP –– Power supply for operation 11 P-GND –– GND for operation 12 P-GND –– GND for operation 13 P-GND –– GND for operation 14 P-GND –– GND for operation 15 P-GND –– GND for operation 16 P-GND –– GND for operation 17 LF-SW Input LF Switch input 18 ERROR Output ERROR LED output (Can be connected directly) 19 PEout Output PE LED output (Can be connected directly) 20 DTR Output Serial Interface DTR 21 TXD Output Serial Interface TXD 22 RXD Input Serial Interface RXD 23 DSR Input Serial Interface DSR 24 DATA0 Input Parallel Interface DATA0 25 DATA1 Input Parallel Interface DATA1 26 DATA2 Input Parallel Interface DATA2 27 DATA3 Input Parallel Interface DATA3 28 DATA4 Input Parallel Interface DATA4 29 DATA5 Input Parallel Interface DATA5 30 DATA6 Input Parallel Interface DATA6 31 DATA7 Input Parallel Interface DATA7 32 nSTB Input Parallel Interface nSTB 33 BUSY Output Parallel Interface BUSY 34 nFAULT Output Parallel Interface nFAULT 35 SELECT Output Parallel Interface SELECT 36 PE Output Parallel Interface PE 37 nACK Output Parallel Interface nACK 38 NC –– No Connection 39 NC –– No Connection 40 nRESET Input Parallel Interface nRESET Applicable Connector: 53313 - 4015 (Molex) * First “n” of signal name indicates “L” active signal. 6 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. Serial interface equips a driver and receiver of RS-232C, make sure to use it at RS-232C level. 4. RESET terminal is pulled up by 47 KΩ. Make sure to make this terminal NC, when this terminal is not used. 5. LF-SW input circuit is as below. VDD CN3 47K CPU 17 Pin 1K 1000 pF 3.4 CN201 Connector for Paper Cutter (Option) Pin No. Signal Name I/O Function 1 M+ Output Cutter motor operational signal M + 2 M– Output Cutter motor operational signal M – 3 GND –– GND 4 SW Input Cutter switch input signal Applicable Connector: 5267- 04A-X (Molex) CAUTION: Use the specified Paper Cutter (Model Name: ACS-230-5V). 7 BD2-3880/3890 User’s Manual 4. SELECTING FUNCTIONS DIP SWITCH Pin No. Function ON OFF Factory Setting 1-1 Auto Cutter Enable Disable OFF 1-2 CR Mode LF Enable LF Disable ON 1-3 Print Density Combination with J-6. See Table (3) OFF 1-4 Communication Mode XON/XOFF DTR/DSR OFF 1-5 OFF 1-6 OFF See Table (1) Baud Rate 1-7 OFF 1-8 OFF JUMPER Pin No. Function Short Open Factory Setting J1 Open (*1) J2 Font Selection See Table (2) Open (*1) J3 Open (*1) J4 Paper Auto Loading Enable Disable Short J5 Print Drive System Variable division Fixed division Short J6 Print Density Short Combination with DS1-3 (Supplementary) See Table (3) J7 Not Used Short –– J8 Mechanism MLT-388 MLT-389 Short *1: All are short circuited for overseas type (BD2-38XX U). *2: When MLT-389 is used, J-4 is left unused and no auto loading occurs regardless of whether the jumper is short circuited or open. (1) Baud Rate DS1-8 DS1-7 DS1-6 DS1-5 Input Method Parity Baud Rate OFF OFF OFF OFF Parallel Input –– –– OFF OFF OFF ON Serial Input None 1200 bps OFF OFF ON OFF 2400 bps " " OFF OFF ON ON 4800 bps " " OFF ON OFF OFF 9600 bps " " OFF ON OFF ON 19200 bps " " OFF ON ON OFF Odd 1200 bps " OFF ON ON ON 2400 bps " " ON OFF OFF OFF 4800 bps " " ON OFF OFF ON 9600 bps " " ON OFF ON OFF 19200 bps " " ON OFF ON ON Even 1200 bps " ON ON OFF OFF 2400 bps " " ON ON OFF ON 4800 bps " " ON ON ON OFF 9600 bps " " ON ON ON ON 19200 bps " " 8 BD2-3880/3890 User’s Manual (2) Font Selection J-3 J-2 J-1 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 (3) Print Density DS3 J-6 Print Density Level Print Density Rate OFF Open Light 0 80% OFF Short Standard 1 100% ON Open Slightly Dark 2 120% ON Short Dark 3 150% CAUTION: 1. Input Buffer is 2k byte. (Fixed) 2. Serial data length is 8 bits. (Fixed) 3. If print tone is set at 2 or above, printing rate tends to be lowered. 9 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. (3) Make sure to turn off the power in case of connecting/disconnecting connectors. (4) Make sure to use VDD and VP following their specifications. (5) Make sure to use this control board connecting all of terminals between VP and P-GND. 10 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. Pulse signal output at the end of the BUSY signal (Negative logic) BUSY : Signal to indicate BUSY state of the printer. Input new data for “LOW” (Positive logic) nFAULT : Signal which is made “LOW” when printer is in alarm state. (Negative logic) In this case all the control logics within the printer stop functioning. PE : Signal which is output when paper runs out. (Positive logic) 11 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. VDD [Host side] [Printer side] TWIST PAIR WIRE * First “n” of signal name indicates “L” active signal. [Printer side] [Host side] VDD TWIST PAIR WIRE All the output signals are pulled up by 50 KΩ. 12 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 : 0.5 µs (MIN) T4 : 270 ns (MAX) T5 : 2.3 µs (TYP) T6 : 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. Therefore, big data can be buffered in input buffer, and the host side can be released immediately. 13 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 : 1 bit or more (4) Signal polarity RS-232C • Mark = Logic “1” (–3V ~ –12V) • Space = Logic “0” (+3V ~ +12V) (5) Receiving data (RD signal) RS-232C • Mark = 1 • Space = 0 (6) Receiving control (DTR signal) RS-232C • Mark : Data transfer is not available • Space : Data transfer is available (7) Transmission control (TD signal) DC1 code (11H) X-ON : Data reception is available DC3 code (13H) X-OFF : Data reception is not available 14 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. A BUSY also occurs when the printer is powered on, in test print, in Online mode, or being reset. (3) TXD If data remaining in the printer’s input buffer is 256 bytes or less, the printer transfers a DC3 (13H: Data Receive Not Ready) signal to the host. If data in the input buffer exceeds 256 bytes, the printer transfers a DC1 (11H: Data Receive Ready) signal to the host. (4) GND Common GND on the circuit. 7.3 Error Detection Parity, framing, and overrun are detected. On detection of any error, the data are stored in the buffer as “?”. (1) Framing Error With “space” state having been detected on detection of a stop bit, error takes place. The data are stored in the buffer as “?”. (2) Parity Error With an error having been detected under specifying parity check, the data is stored in the buffer as “?”. (3) Overrun Error On detection of an overrun error, the data are stored in the buffer as “?”. 15 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)] 7.6 Electrical Characteristics (1) RS-232C Circuit Input (RXD, DSR) Equivalent MAX232 Output (DTR, TXD) Equivalent MAX232 16 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. With the auto cutter enabled at the function selection terminal (DS1-1), the auto Cutter error cutter (ACS-230-5V) is not connected to the cutter connector (CN201). (2) External signal outputs Connector for interface (CN3) Pin No. Signal Name Remarks 18 LED output. For a blinking pattern, see “8.3 Error Indication”. ERROR 20 Serial interface DTR 33 Parallel interface BUSY 34 Parallel interface nFAULT * First “n” of signal name indicates “L” active signal. (3) Resetting methods Error Resetting Method Memory error Unrecoverable After turning off the power, connect the auto cutter (ACS-230-5V) or turn off the Cutter error function selection terminal (DS1-1) and turn on the power again. 17 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. VP voltage error A VP voltage is beyond its allowable range (4.2 to 8.5V) Head temperature error A head temperature is less than 0˚C or 65 ˚C or higher. Cutter lock When driving the cutter, the cutter is locked due to an external factor (ACS-230-5V) (Paper jam, etc.). CAUTION: The 8.5V upper-limit voltage for VP voltage error is only an assumptive voltage just after charging the battery when using the battery power. It cannot be normally used. A normal maximum voltage is 7.2V. (2) External signal outputs Connector for interface (CN3) Pin No. Signal Name Remarks 18 ERROR LED output. For a blinking pattern, see “8.3 Error Indication”. Output at error other than No-paper. 19 LED output. This is always output at the time of no paper. PE out 20 DTR Serial interface 33 BUSY Parallel interface 36 PE Parallel interface 34 Parallel interface nFAULT (3) Resetting methods Error Resetting Method No paper Set the paper. See Note 1. Head-up Bring down the head-up lever. * When MLT-388 is used. Platen not mounted Mount the platen. * When MLT-389 is used. VP voltage error Set to a voltage within the allowable range (4.2 to 8.5V) and turn on the power again. Alternatively, activate the Pin 17 (LF-SW) of the CN3 (interface connector). Head temperature At the lower limit (less than 0 C), printing becomes operational at 0 C higher. error At the upper limit (65 C or higher), it become operational at 60 C or lower. Cutter lock Eliminate paper jam and activate the Pin 17 (LF-SW) of the CN3 (interface (ACS-220-5V) connector) or turn on the power again. CAUTION: 1. When auto loading has not been selected with the function selection jumper (J4), set the paper manually. When it has been selected, the auto loading function is enabled to facilitate replacement of the paper. 2. The 8.5V upper-limit voltage for VP voltage error is only an assumptive voltage just after charging the battery when using the battery power. It cannot be normally used. A normal maximum voltage is 7.2V. 18 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). Head-up *MLT-388 Illuminated until reverted Platen not mounted *MLT-389 VP voltage error Illuminated until reverted Head temperature error Blinking cycle of 1 sec. Macro execution wait Blinking cycle of 500 ms. 19 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. For selection by function selection, refer to “4. Function Selection”. For selection by command, refer to attached “BD2-38XX Command Reference”. 9.1.1 Fixed Division Number System This system always drives each block in the same sequence. 1 Dot Line 1st Block 2nd Block 3rd Block 4th Block 64 Dots 64 Dots 64 Dots 64 Dots 5th Block 6th Block 7th Block 8th Block 9th Block 64 Dots 64 Dots 64 Dots 64 Dots 64 Dots 1st Step of Motor 2nd Step of Motor CAUTION: For a stepping motor driving method, see “9.2 Motor Drive”. 9.1.2 Variable Division Number System This system counts the number of printing dots for each block of the printing dot line and drives the blocks collective in such a manner not to exceed the maximum number of driving dots (64 dots). 1 Dot Line 1st Block 2nd Block 3rd Block 4th Block 5th Block 6th Block 7th Block 8th Block 9th Block 64 Dots 64 Dots 64 Dots 64 Dots 64 Dots 64 Dots 64 Dots 64 Dots 64 Dots 1st Step of Motor 2nd Step of Motor 20 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 Motor Drive Speed 5V 487 pps 6V 702 pps 7.2V 960 pps CAUTION: The maximum drive speed depends on the VP voltage. A printing speed may slightly differ depending on a processing time or voltage detection accuracy. During the course of printing, a motor drive speed may be slower than the maximum drive speed, depending on what is printed or the head divided drive system. 21 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 TEL 310-781-1460 TEL 03-5345-7440 FAX 310-781-9157 FAX 03-5345-7441 22 BD2-3880/3890 User’s Manual APPENDIX 1. BLOCK DIAGRAM *Option Cutter CN201 FLASH OSC RAM ROM MEMORY Driver G/A CPU Driver Dip switch CN1 Timing Driver Reset VH Control CN2 CN3 VDD VP 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) * When MLT-388 is used: Head Up operation) * When MLT-389 is used: Platen Sensor *1: Only for Japan 23 Print Head BD2-3880/3890 User’s Manual APPENDIX 2. OUTER DIMENSION φ 3 × 4 BD2-38 CN1 IC1 IC2 80 72 CN3 TR2 TA1 IC6 TA2 TA2 CN2 CN201 4 4 82 90 TA201 (CN3) 12 CN201 IC101 1.6 3 (Unit: mm) 24

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