Citizen CBM-202PC-04 User manual

User’s Manual
THERMAL PRINTER MECHANICAL
CONTROL LSI
MODEL CBM-202PC-04
Rev.1.01 Added notes Dec.14th,1998

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<CAUTIONS>
1. Prior to using the printer, read this manual thoroughly for correct operation. After reading the manual, keep it
carefully at hand for your future reference.
2. The information herein is subject to change without prior notice due to technical improvements. Upon actual
use of the printer, inquire for the up-to-date specifications.
3. It is strictly prohibited to copy part or all of the information contained in this manual without our prior
permission.
4. If you have any question about the information herein or notice any clerical erroror omission, please contact us.
5. We will not be responsible for the effects from the results of operating the printer, regardless of Section 4.
6. We cannot guarantee that the information herein does not infringe upon the industrial property, etc. of a third
party, except when there is a written agreement to that effect.

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CONTENTS
1. OUTLINE............................................................................................................................................................ 5
1.1 Applicable Printer ........................................................................................................................................ 5
2. MAINTENANCE AND SERVICE.................................................................................................................... 6
3. BASIC SPECIFICATIONS................................................................................................................................ 7
3.1 Shapes and Dimensions.................................................................................................................................. 7
3.2 Structure........................................................................................................................................................ 7
3.3 Data Transfer Method .................................................................................................................................... 7
3.4 Printing Function ........................................................................................................................................... 7
3.5 Operating Voltage and Power Consumption.................................................................................................... 7
3.6 Operating Frequency...................................................................................................................................... 7
4. HARDWARE SPECIFICATIONS.................................................................................................................... 8
4.1 Absolute Maximum Ratings........................................................................................................................... 8
4.2 Electrical Characteristics................................................................................................................................ 8
4.3 Pin Layout and Functions............................................................................................................................... 9
4.4 Gate Array Pin Layout and Functions............................................................................................................13
4.5 Reset Circuit.................................................................................................................................................14
4.6 Oscillation Circuit.........................................................................................................................................15
4.7 Head-up Detection Circuit.............................................................................................................................16
4.8 Head Control Circuit.....................................................................................................................................17
4.9 Paper End Detection Circuit..........................................................................................................................18
4.10 Motor Control Circuit ...................................................................................................................................19
4.11 Auto Cutter Control Circuit...........................................................................................................................20
4.12 Parallel Interface Circuit ...............................................................................................................................21
4.13 Serial Interface Circuit..................................................................................................................................23
4.14 Switch Circuit...............................................................................................................................................24
4.15 Error Output Circuit......................................................................................................................................25
4.16 Function Selection Circuit.............................................................................................................................27
4.17 External RAM Interface................................................................................................................................30

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5. PRINTER MECHANISM CONTROL SYSTEM ......................................................................................... 33
5.1 Head Drive ...................................................................................................................................................33
5.1.1 Head Dividing Method .....................................................................................................................33
5.1.2 Thermal Head Application Energy....................................................................................................34
5.2 Motor Drive..................................................................................................................................................34
5.3 Auto Loading................................................................................................................................................35
6. SELF-PRINTING............................................................................................................................................. 36
7. OPERATION TIMING.................................................................................................................................... 37
8. SPECIFICATIONS OF PACKAGE................................................................................................................ 38
9. PRECAUTIONS FOR MOUNTING .............................................................................................................. 39
9.1 Precautions...................................................................................................................................................39
9.2 Reflow Mounting..........................................................................................................................................39
9.3 Recommended Conditions for Different Mounting Methods ..........................................................................39
9.4 Clearing Method...........................................................................................................................................41
9.5 Storage Method.............................................................................................................................................41
10. PRINT CONTROL FUNCTIONS................................................................................................................... 42
10.1 Command List..............................................................................................................................................42
10.2 Command Details .........................................................................................................................................44
11. CHARACTER CODES TABLE...................................................................................................................... 86
11.1 International..................................................................................................................................................86
11.2 Domestic ......................................................................................................................................................87
11.3 International Character Codes Table..............................................................................................................88

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1. OUTLINE
This LSI is designed to control the line thermal printer LT-286 by using our Gate Array. It has the following
features.
(1) Capable of providing high-quality printing by detecting a temperature and automatically correcting
printing density.
(2) Capable of providing high-quality printing by detecting a voltage and automatically correcting printing
density.
(3) Capable of selecting the parallel or serial interface.
(4) Capable of selecting printing density via a function selection terminal.
(5) Capable of printing a bar code.
(6) Capable of printing double-width/height characters, bit images, and so on by various commands.
1.1 Applicable Printer
LSI Name Applicable Mechanism
CBM-202PC-04 LT-286

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2. MAINTENANCE AND SERVICE
For the information onmaintenance 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 CBM Bldg.,5-68-10 Nakano
Suit 510 Nakno-ku, Tokyo 164-0001
Torrance, CA 90501, U.S.A Japan
TEL [phone] TEL [phone]
FAX [phone] FAX [phone]

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3. BASIC SPECIFICATIONS
3.1 Shape and Dimensions (Refer to the “8. SPECIFICATIONS OF PACKAGE”.)
100-pin flat package
3.2 Structure
C-MOS LSI
3.3 Data Transfer Method
Parallel transfer or serial transfer (Selectable)
(1) 8-bit parallel transfer (CENTRONICS based)
(2) Asynchronous serial transfer (Selectable)
1,200, 2,400, 4,800, 9,600, or 19,200 bps
Parity: Odd, Even, or None parity; 8 bits
3.4 Printing Function
(1) Printing columns and printing speed
Model Digits Total Dots Character Size (mm) Printing Speed (m/s)
32 1.25×3.00(Font A)
LT-286 42 384 0.88×3.00(Font B) 50
Note) The printing speed above applies when the thermal printer is driven in the following environment:
• Drive voltage(VH) = 7.2 V
• Thermal head temperature = 30°C or more
• Simultaneous power-on(print) dots = Within 64 dots
3.5 Operating Voltage and Power Consumption
• Voltage : 5V DC ±5%
• Current consumption : 80mA at maximum
3.6 Operating Frequency
• 16 MHz

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4. HARDWARE SPECIFICATIONS
4.1 Absolute Maximum Ratings
Item Symbol Rating
Supply voltage Vcc –0.3 ~ +7.0V
Input voltage Vi –0.3 ~ Vcc+0.3V
Reference supply voltage VREF –0.3 ~ AVcc+0.3V
Analog supply voltage AVcc –0.3 ~ +7V
Analog input voltage VAN –0.3 ~ AVcc+0.3V
Operating temperature Topr –20 ~ +75°C
Storage temperature Tstg –55 ~ +125°C
4.2 Electrical Characteristics
Item Symbol MIN MAX Unit Condition
RES,STBY,NM1
MD0,MD1,MD2 Vcc–0.7 Vcc+0.3 V
EXTAL Vcc×0.7 Vcc+0.3 V
THEM 2.0 AVcc+0.3 V
Input
"HIGH"
Level
Others
VIH
2.0 Vcc+0.3 V
Input
"LOW"
level All input terminals VIL –0.3 0.5 V
Output
"HIGH"
level All output terminals V0H 3.5 – V IOH =–1
mA
RESO – 0.4 V IOH = 2.6mA
LEDER,LEDPE – 1.0 V IOL =10
mA
Output
"LOW"
level Others
V0L
0.4 V IOL = 1.6mA

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4.3 Terminal Layout and Functions
PinNo. Signal I/O Function Logic
1 VCC – VCC –
2 LFSW Input LF switch input LOW
3 LEDER Output Error LED output LOW
4 LEDPE Output Paper end LED output LOW
5NC–NC –
6 LATCH Output Head latch signal LOW
7 PAPER Input Paper end input NC HIGH
8 DRQ Input DMA request LOW
9NC–NC –
10 RES0 Output Watchdog output LOW
11 VSS – GND –
12 DTR Output Serial DTR (RS-232C) HIGH
13 TXD Output Serial TXD (RS-232C) HIGH
14 DI Input Print head output data HIGH
15 RXD Input Serial RXD (RS-232C) HIGH
16 CP Input Print head clock HIGH
17 NC – NC –
18 CTSW Input Cutter switch input LOW
19 NC – NC –
20 NC – NC –
21 NU – RESERVED –
22 VSS – GND –
23 MOTORA Output Motor A –
24 MOTORB Output Motor B –
25 MOTORA Output Motor A –
Note) For notation of the signals whose logic is "LOW"(Negative), a representation of
XXX(Upper line) will be omitted for the subsequent notations.

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Pin No. Signal I/O Function Logic
26 MOTORB Output Motor B –
27 D0 I/O D0 HIGH
28 D1 I/O D1 HIGH
29 D2 I/O D2 HIGH
30 D3 I/O D3 HIGH
31 D4 I/O D4 HIGH
32 D5 I/O D5 HIGH
33 D6 I/O D6 HIGH
34 D7 I/O D7 HIGH
35 VCC – VCC –
36 A0 Output A0 HIGH
37 A1 Output A1 HIGH
38 A2 Output A2 HIGH
39 A3 Output A3 HIGH
40 A4 Output A4 HIGH
41 A5 Output A5 HIGH
42 A6 Output A6 HIGH
43 A7 Output A7 HIGH
44 VSS – GND –
45 A8 Output A8 HIGH
46 A9 Output A9 HIGH
47 A10 Output A10 HIGH
48 A11 Output A11 HIGH
49 A12 Output A12 HIGH
50 A13 Output A13 HIGH