CITIZEN BD2-2860 User's Manual

User’s Manual

CONTROL BOARD FOR LT-286 MODEL BD2-2860

Rev.1.01 Added notes Mar.19th,1999

BD2-2860 User’s Manual

<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's manual may be changed without 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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BD2-2860 User’s Manual

 

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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BD2-2860 User’s Manual

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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BD2-2860 User’s Manual

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.

1.1Features

(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)

1.2Precaution

(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 sp ecifications.

(4)Use the recommended paper shown below.

Thermal Paper TF50KS-E2(Nippon-Seishi)

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BD2-2860 User’s Manual

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

310-781-1460

TEL

03-5345-7540

FAX

310-781-9157

FAX

03-5345-7541

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BD2-2860 User’s Manual

2. BASIC SPECIFICATIONS

2.1 Model classification

BD2-2860 U

Character Set

U : International model

Model Name of applied printer mechanism 2860: For LT-286

Model Name

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BD2-2860 User’s Manual

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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BD2-2860 User’s Manual

3. CONNECTING CONNECTORS

3.1 CN1 Connector for Printer Mechanism (For Print Head)

Pin No.

Signal Name

I/O

Function

1

 

VH

Power for print head

2

 

VH

Power for print head

3

 

VH

Power for print head

4

 

DO

Output

Head data output signal

 

 

 

 

 

 

5

 

LATCH

Output

Latch signal

6

 

CP

Output

Clock pulse

7

 

Vdd

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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BD2-2860 User’s Manual

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

 

 

Output

Operation signal for motor

 

 

A

 

A

 

 

 

 

4

MOTOR

B

 

Output

Operation signal for motor

B

 

5

PE C

Photo-transistor collector (Paper sensor)

6

GND

Photo-transistor emitter (Paper sensor)

7

PE A

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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BD2-2860 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

 

 

 

 

 

 

Vdd

Power supply for circuit (5V)

4

 

 

 

 

GND

GND

5

 

 

 

 

GND

GND

6

 

 

 

 

GND

GND

7

 

 

 

 

 

 

VH

Power supply for operation (4.2~8.5V)

8

 

 

 

 

 

 

VH

Power supply for operation (4.2~8.5V)

9

 

 

 

 

 

 

VH

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input

LF Switch input

 

 

 

 

LF-SW

20

 

 

 

 

 

 

 

 

 

 

 

 

 

Output

Error LED output (Can be connected directly)

 

 

 

 

ERROR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

 

 

 

 

 

 

 

 

 

 

 

 

Output

PE LED output (Can be connected directly)

 

 

 

PE OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

Input

Parallel Interface

 

 

 

 

 

 

 

 

 

 

 

STB

 

STB

27

 

 

 

 

BUSY

Output

Parallel Interface BUSY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

 

 

 

 

 

 

 

 

 

Output

Parallel Interface

 

 

 

 

 

 

 

 

 

ACK

 

 

 

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

 

 

 

 

 

 

 

Output

Parallel Interface

 

 

 

 

 

 

 

FAULT

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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BD2-2860 User’s Manual

CAUTION:

1.For LED of ERROR and PE, there is a resister of 330 Ω on the circuit side to make 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 +

2

M

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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BD2-2860 User’s Manual

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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BD2-2860 User’s Manual

(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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BD2-2860 User’s Manual

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.

5.2Precautions

(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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BD2-2860 User’s Manual

6. PARALLEL INTERFACE

6.1 Specifications

 

 

Data input method

: 8 bit parallel signal (DATA0~7)

 

 

Control signals

:

 

BUSY,

 

 

 

PE,

 

 

 

 

ACK,

STB,

FAULT,

RESET

6.2 Explanation of Input /Output Signals

 

 

DATA0~7

: 8 bit parallel signal (Positive logic)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STB

: Strobe signal to read 8 bit data (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 50K Ω.

<Printer side>

<Host side>

All the output signals are pulled up by 50KΩ.

<Printer side>

<Host side>

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BD2-2860 User’s Manual

6.4Timing chart

(1)Data Input and Printing Timing

Supply

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T1, T2, T3

: 0.5 s (MIN)

T4

: 270 ns (MAX)

T5

: 2.3 s (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.

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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.

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7.3 Date configuration

Mark

b1,b2,b3 · · · ·

Space

(1)

(2)

(3)

(1)Start bit

(2)Data bit (+ Parity bit)

(3)Stop bit ( 1 or more )

(1)Start Bit

In 1/2 bit from the mark-to-space starting edge, state is read once again. When "space" state is confirmed, it is recognized as the start bit. If it is "mark" state, it is not taken as the start bit.

Without taking it as an error, detection of a start bit is carried out once again.

(2) Data Bit + Parity Bit

Data bit and parity bit are sampled at 1/2 start bit for time length equal to 1 bit. The state thus sampled is taken as the data for the bit concerned. Bits are named as Bit 0, Bit 1.…. Parity bit counted from the one close to the start bit.

(3) Stop Bit

The stop bit is a mark level of 1 bit or more. With "space" having been detected on detection of a stop bit, framing error takes place.

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7.4 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 "?".

7.5 Data receiving control

When DTR/DSR control having been selected, with BUSY signal at "LOW", data from the host side are received. With the signal at "HIGH", they can not be received.

When DTR/DSR control not having been selected, after X-ON transmission, data is received from the host side. No transmission of data can take place after X-OFF is transmitted.

7.6 Buffering

Data transfer to the input buffer include DTR signals and TD signals as the control signals concerned.

(1)DTR signals (See the page 20 7.2(2))

(2)TXD signals (See the page 20 7.2(3))

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7.7Electrical characteristics

(1)RS-232C Circuit

Input (RXD, DSR)

<Printer side>

<Host side>

Mark=(-8V): Stop bit

RXD

Space=(+8V): Start bit

Equivalent MAX232

Output (DTR, TXD)

Equivalent MAX232

 

Mark=(-8V): At Busy

Mark=(-8V): 1

DTR

TD

Space=(+8V): At Ready

Space=(+8V): 0

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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

 

The CPU made a self-diagnosis of the circuit and detected an error with the external

 

 

 

RAM.

 

Cutter error

 

With the auto cutter enabled at the function selection terminal (DS1-1), the auto

 

 

 

cutter (ACS-220-5V) is not connected to the cutter connector (CN4).

(2) External signal outputs

 

Interface Connector (CN3)

 

Pin No.

 

Signal Name

Remarks

20

 

 

 

LED output. For a blinking pattern, see 8.3 Error Indication.

 

 

ERROR

 

22

 

 

DTR

Serial interface

27

 

 

BUSY

Parallel interface

 

 

 

 

 

 

38

 

 

FAULT

Parallel interface

 

 

 

 

 

 

(3) Resetting methods

Error

Resetting Method

Memory error

Unrecoverable

Cutter error

After turning off the power, connect the auto cutter (ACS-220-5V) or turn off the

 

function selection terminal (DS1-1) and turn on the power again.

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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

VH voltage error

A VH 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 (Paper jam,

(ACS-220-5V)

etc.).

Note 1) The 8.5V upper-limit voltage for VH 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 Interface Connector (CN3)

Pin No.

Signal Name

Remarks

 

 

 

 

 

 

 

 

20

 

 

ERROR

LED output. For a blinking (Lighting) pattern, see 8.3 Error Indication.

 

 

 

 

 

 

 

 

21

 

 

 

LED output. This is always o utput at the time of no paper.

 

 

PE OUT

 

22

 

 

DTR

Serial interface

27

 

 

BUSY

Parallel interface

37

 

 

PE

Parallel interface

38

 

 

 

 

Parallel interface

 

 

FAULT

 

 

(3) Resetting methods

Error

Resetting Method

No paper

Set the paper. See Note 1.

Head –up

Bring down the head-up lever.

VH voltage error

Set to a voltage within the allowable range (4.2 to 8.5V) and turn on the power

 

again. Alternatively, activate the Pin19 (LFSW) of the CN3(interface connector).

Head temperature error

At the lower limit (less than 0°C), printing becomes operational at 0°C higher.

 

At the upper limit (65°C or higher), it become operational at 60°C or lower.

Cutter lock

Eliminate paper jam and activate the Pin19(LFSW) of the CN3(Interface

(ACS-220-5V)

Connector) or turn on the power again.

Note 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.

Note 2) The 8.5V upper-limit voltage for VH 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.

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