Citizen BD2-2860 User manual

User’s Manual
CONTROL BOARD FOR LT-286
MODEL BD2-2860
Rev.1.01 Added notes Mar.19th,1999

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<CAUTIONS>
1. Before using this equipment, be sure to read this User's manual thoroughly.
Please keep this with care so as to referred to any time at need.
2. Portions of the contents of this User'smanual may be changedwithout prior notice.
3. The reproduction of parts or all of the contents of this User's manual without permission is
strictly forbidden.
4. Absolutely do not carry out maintenance, disassembly, or repair of parts that are not
specified in this User's manual.
5. Note that losses which may be attributed to the user's wrong operation method or operating
environment will be outside the responsibility of this company.
6. Do not carry out the operations other than those explained in this User's manual, since doing
do so may become a cause of accidents or breakdowns.
7. Because data is basically transient, long-period and permanent storage of data will not be
possible. Please note in advance that this company will not be responsible in any way for
losses or lost profits caused through the clearing of the data due to breakdowns, repairs,
investigations, etc.
8. If any questionable points, mistakes, omitted explanations, etc. are found in the contents of
this manual, please contact this company.
9. Please note that notwithstanding the conditions in above 8; this company will not be
responsible for the consequences of results obtained through operation of this equipment.

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CONTENT
<CAUTIONS>......................................................................................................................................................2
1. OUTLINE..........................................................................................................................................................5
1.1 FEATURES...............................................................................................................................................................5
1.2 PRECAUTION...........................................................................................................................................................5
1.3 MAINTENANCE AND SERVICE...................................................................................................................................6
2.BASIC SPECIFICATIONS.....................................................................................................................7
2.1 MODEL CLASSIFICATION..........................................................................................................................................7
2.2 BASIC SPECIFICATIONS............................................................................................................................................8
3.CONNECTING CONNECTORS.........................................................................................................9
3.1 CN1 CONNECTOR FOR PRINTER MECHANISM (FOR PRINT HEAD)..............................................................................9
3.2 CN2 CONNECTOR FOR PRINT MECHANISM (FOR MOTOR &SENSOR)......................................................................10
3.3 CN3 CONNECTOR FOR INTERFACE .........................................................................................................................11
3.4 CN4 CONNECTOR FOR PAPER CUTTER ...................................................................................................................12
4.DIP SWITCH SETTING.........................................................................................................................13
5.POWER SUPPLY........................................................................................................................................15
5.1 SPECIFICATIONS ....................................................................................................................................................15
5.2 PRECAUTIONS.......................................................................................................................................................15
6.PARALLEL INTERFACE.....................................................................................................................16
6.1 SPECIFICATIONS ....................................................................................................................................................16
6.2 EXPLANATION OF INPUT /OUTPUT SIGNALS............................................................................................................16
6.3 ELECTRICAL CHARACTERISTICS .............................................................................................................................17
6.4 TIMING CHART ......................................................................................................................................................18
6.5 DATA RECEIVING CONTROL....................................................................................................................................18
6.6 BUFFERING ...........................................................................................................................................................18
7. SERIAL INTERFACE............................................................................................................................19
7.1 SPECIFICATIONS ....................................................................................................................................................19
7.2 EXPLANATION OF INPUT /OUTPUT SIGNALS ...........................................................................................................20
7.3 DATE CONFIGURATION...........................................................................................................................................21
7.4 ERROR DETECTION ...............................................................................................................................................22
7.5 DATA RECEIVING CONTROL....................................................................................................................................22
7.6 BUFFERING ...........................................................................................................................................................22
7.7 ELECTRICAL CHARACTERISTICS .............................................................................................................................23

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8. ERROR HANDLING...............................................................................................................................24
8.1 PERIPHERAL CIRCUIT ERRORS ...............................................................................................................................24
8.2 OPERATION ERRORS..............................................................................................................................................25
8.3 ERROR INDICATION ...............................................................................................................................................26
9. PRINTER MECHANISM CONTROL SYSTEM..................................................................27
9.1 THERMAL HEAD CONTROL SYSTEM (DIVISION DRIVING SYSTEM)...........................................................................27
9.1.1 Fixed Division Number System......................................................................................................................27
9.1.2 Variable Division Number System..................................................................................................................27
9.2 MOTOR DRIVE ......................................................................................................................................................28
9.2.1 Motor Drive Features....................................................................................................................................28
9.2.2 Maximum Motor Drive Speeds at Major Voltage............................................................................................28
10. PRINT CONTROL FUNCTIONS.................................................................................................29
10.1 COMMAND LIST ..................................................................................................................................................29
10.2 COMMAND DETAILS............................................................................................................................................30
10.2.1 Description of Items.....................................................................................................................................30
10.2.2 Details.........................................................................................................................................................31
11. CHARACTER CODE TABLE........................................................................................................77
11.1 INTERNATIONAL ..................................................................................................................................................77
11.2 JAPANESE............................................................................................................................................................78
11.3 INTERNATIONAL CHARACTER SET........................................................................................................................79
APPENDIX 1. BLOCK DIAGRAM........................................................................................................................80
APPENDIX 2. OUTER DIMENSION.....................................................................................................................81

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1. OUTLINE
This control boards is designed to be used to control our thermal printer, "LT-286" 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.
(5) Auto paper cutter control incorporated.
(6) User-defined character registration function (94 characters)
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-E2(Nippon-Seishi)

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1.3 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
365 Van Ness Way Suite 510 5-68-10, Nakano Nakano-ku,
Torrance, CA 90501, U.S.A Tokyo 164-0001 Japan
TEL [phone] TEL [phone]
FAX [phone] FAX [phone]

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2. BASIC SPECIFICATIONS
2.1 Model classification
BD2-2860 U
Character Set
U : International model
Model Name of applied printermechanism
2860: For LT-286
Model Name

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2.2 Basic Specifications
Items Contents
Print width 48 mm
Print Speed 400 dot line / sec (When 7.2V)
Number of columns Font A : 32 columns
Font B : 42 columns
Character dimensions Font A : 1.25 mm x 3.00 mm (10 + 2 dots space x 24 dots)
Font B : 0.88 mm x 2.13 mm ( 7 + 2 dots space x 24 dots)
Character types Alphanumeric, international characters
Bar code type UPC-A/E, JAN (EAN) 13 / 8 columns, ITF
CODE 39, CODE 128, CODABAR
Line pitch 4.23 mm (Can be changed by command)
Interface Parallel (Conforms to Centronics) or Serial (Conforms to RS-232C)
(Selectable by dip switch)
Input buffer 2 K bytes
Supply voltage 5V ±5 % Approx. 180mA
4.2V ~ 8.5V Approx. 1.3A(Ave) Approx. 4.0A(Peak) When 7.2V
Ordinal voltage is to be 7.2V(Max)
8.5V is a voltage, which is right after charging.
Operating Environment 0 ~ 40°C (Print guaranteed at 5 ~ 40°C)
Storage Environment -20 ~ 60°C
Outer Dimension 75mm (W) x 80mm (D) (For height of component parts, see outer drawing.)
Weight Approx. 50 g

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3. CONNECTING CONNECTORS
3.1 CN1 Connector for Printer Mechanism (For Print Head)
Pin No. Signal Name I/O Function
1VH–Power for print head
2VH–Power for print head
3VH–Power for print head
4 DO Output Head data output signal
5 LATCH Output Latch signal
6 CP Output Clock pulse
7Vdd–Power for circuit
8 STRB1 Output Strobe 1
9 STRB2 Output Strobe 2
10 STRB3 Output Strobe 3
11 TH Input Thermistor
12 GND –Power GND
13 GND –Power GND
14 GND –Power GND
15 GND –Power GND
16 GND –Power GND
17 GND –Power GND
18 GND –Logic GND
19 NC –No connection
20 NC –No connection
21 STRB4 Output Strobe 4
22 STRB5 Output Strobe 5
23 STRB6 Output Strobe 6
24 NC –No connection
25 DI Input Print data serial input
26 VH –Power for print head
27 VH –Power for print head
28 VH –Power for print head
Applicable Connector : 6216-28 000 808 (Kyocera Elco)

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3.2 CN2 Connector for Print Mechanism (For Motor & Sensor)
Pin No. Signal Name I/O Function
1 MOTOR A Output Operation signal for motor A
2 MOTOR B Output Operation signal for motor B
3 MOTOR A Output Operation signal for motor A
4 MOTOR B Output Operation signal for motor B
5PEC –Photo-transistor collector (Paper sensor)
6 GND –Photo-transistor emitter (Paper sensor)
7PEA –Photo-LED anode (Paper sensor)
8 GND –Photo-LED cathode (Paper sensor)
9 GND –Head-up sensor GND
10 H-UP Input Head-up signal
Using Connector : 53047-1010 (Molex)

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3.3 CN3 Connector for Interface
Pin No. Signal Name I/O Function
1Vdd –Power supply for circuit (5V)
2Vdd –Power supply for circuit (5V)
3Vdd –Power supply for circuit (5V)
4 GND –GND
5 GND –GND
6 GND –GND
7VH–Power supply for operation (4.2~8.5V)
8VH–Power supply for operation (4.2~8.5V)
9VH–Power supply for operation (4.2~8.5V)
10 VH –Power supply for operation (4.2~8.5V)
11 VH –Power supply for operation (4.2~8.5V)
12 VH –Power supply for operation (4.2~8.5V)
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 P-GND –GND for operation
18 P-GND –GND for operation
19 LF-SW Input LF Switch input
20 ERROR Output Error LED output (Can be connected directly)
21 PE OUT Output PE LED output (Can be connected directly)
22 DTR Output Serial Interface DTR
23 TXD Output Serial Interface TXD
24 RXD Input Serial Interface RXD
25 DSR Input Serial Interface DSR
26 STB Input Parallel Interface STB
27 BUSY Output Parallel Interface BUSY
28 ACK Output Parallel Interface ACK
29 DATA 0 Input Parallel Interface DATA 0
30 DATA 1 Input Parallel Interface DATA 1
31 DATA 2 Input Parallel Interface DATA 2
32 DATA 3 Input Parallel Interface DATA 3
33 DATA 4 Input Parallel Interface DATA 4
34 DATA 5 Input Parallel Interface DATA 5
35 DATA 6 Input Parallel Interface DATA 6
36 DATA 7 Input Parallel Interface DATA 7
37 PE Output Parallel Interface PE
38 FAULT Output Parallel Interface FAULT
39 RESET Input Parallel Interface RESET
40 NC –No Connection
Using Connector : LY20-40P-DT1-P5 (JAE)
Applicable Connector : LY10-DC40 (JAE)

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CAUTION:
1. For LED of ERROR and PE, there is a resister of 330Ωon the circuit side tomake current
value 10mA.
Please use LED which its voltage is approx. 2V. LED over 10mA may break a control board.
2. 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.
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 3.3KW. Make sure to make this terminal NC, when this
terminal is not used.
5. LF-SW input circuit is as below.
3.4 CN4 Connector for Paper Cutter
Pin No. Signal Name I/O Function
1 M + Output Cutter motor operational signal M +
2M–Output Cutter motor operational signal M –
3 GND –GND
4 SW Input Cutter switch input signal
Using Connector : 5207-0410A (Molex)
Note ) Use the specified Paper Cutter(Model Name : ACS-220-5V)

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4. DIP SWITCH SETTING
(1) DIP SWITCH
Pin No. Function ON OFF Factory Setting
DS1-1 Auto Cutter Enable Disable OFF
2 CR Selection LF Enable LF Disable ON
3 Print Density Combination with (2)-J6 (See below) OFF
4 DTR/XON-XOFF XON-XOFF DTR/DSR OFF
5 Baud Rate OFF
6 " See below (3) OFF
7" OFF
8" OFF
(2) JUMPER
No. Function Short Open Factory Setting
J1 International Character set Open (Short circuit)
J2 " See below (4) Open (Short circuit)
J3 " Open (Short circuit)
J4 Paper Auto Loading Enable Disable Short circuit
J5 Print Drive System Variable division Fixed division Short circuit
J6 Print Density Combination with DS1-3 Short circuit
(Supplementary) See below(5)
J7 Not Used Short circuit
J8 Not Used Short circuit
(3) INTERFACE & BAUD RATE
DS1-8 7 6 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

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(4) INTERNATIONAL CHARACTER SET
J-3 2 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
(5) PRINT DENSITY
DS1-3 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%
Note)
1. Input Buffer is 2k byte.(Fixed)
2. Serial data length is 8 bits.(Fixed)

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5. POWER SUPPLY
5.1 Specifications
VCC : 5V± 5% 180 mA
VP : 4.2V ~ 8.5V 1.3A (Peak : Approx.4.0A)
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 Vdd before VH When power is supplied to this control board.
(2) Design the product to turn off the power for Vdd after VH 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 VH following their specifications.
(5) Make sure to use this control board connecting all of terminals between VH and P-GND.

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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 bitdata (Negative logic)
RESET : Signal to reset control board (Negative logic)
ACK : 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)
FAULT : Signal which is made "LOW" when printer is in alarm state.(Negative logic)
PE : Signal which is output when paper runs out.(Positive logic)

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6.3 Electrical characteristics
(1) Input Signal Level
"HIGH" level : 0.7Vdd MIN
"LOW" level : 0.3Vdd MAX
(2) Output Signal Level
"HIGH" level : Vdd –0.1V MIN
"LOW" level : 0.1V MAX
(3) I/O Conditions
STB, RESET input signals are pulled up by 47KΩ.
Other input signals are pulled up by 50KΩ.
<Printer side> <Host side>
All the output signals are pulled up by 50KΩ.
<Printer side> <Host side>

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6.4 Timing chart
(1) Data Input and Printing Timing
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 bereleased immediately.
Supply

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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

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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. Even during printing, data can be loaded in the input buffer. Further, BUSY
can take place on supply of power, during test printing, during on-line, or on resetting.
(3) TXD
When, while in data reception, the rest of input buffer on the printer side goes less than 256 bytes , DC3
(13H) data reception impossible signals are output, when the rest of input buffer goes more than 256 bytes,
DC1 (11H) data reception possible signals are output to the host.
When DTR/DSR control having been selected in status information transmission, it is first confirmed that
DSR is "space" and data is sent.
When DTR/DSR control has not been selected, DSR is ignored and data is transmitted.
(4) GND
Common GND on the circuit.