Star Micronics DP8340FC-220A, DP8340FC-120A, DP8340FC-100A, DP8340FC-230A, DP8340FC-240A User Manual

DOT MATRIX PRINTER

DP8340 SERIES

[PARALLEL INTERFACE]

USERS MANUAL

Federal Communications Commission

Radio Frequency Interference

Statement

This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to corect the interference at his own expense.

For compliance with the Federal Noise Interference Standard, this equipment requires a
shielded cable.

This statement will be applied only for the printers marketed in U.S.A.

Statement of

The Canadian Department of Communications

Radio Interference Regulations

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital
apparatus set out in the Radio Interference Regulations of the Canadian Department of
Communications.

Le présent appareil numérique n’émet pas de bruits radioélectiques dépassant les limites
applicables aux appareils numériques de la classe A prescrites dans le Règlement sur le
brouillage radioélectrique édicté par le ministère des Communications du Canada.

The above statement applies only to printers marketed in Canada.

CE

Manufacturer’s Declaration of Conformity

EC Council Directive 89/336/EEC of 3 May 1989

This product, has been designed and manufactured in accordance with the International Standards EN 50081-1/01.92 and
EN 50082-1/01.92, following the provisions of the Electro Magnetic Compatibility Directive of the European Commu­nities as of May 1989.

EC Council Directive 73/23/EEC and 93/68/EEC of 22 July 1993

This product, has been designed and manufactured in accordance with the International Standards EN 60950, following
the provisions of the Low Voltage Directive of the European Communities as of July 1993.

The above statement applies only to printers marketed in EU.

Trademark acknowledgments

DP8340: Star Micronics Co. Ltd.

Notice

• All rights reserved. Reproduction of any part of this manual in any form whatsoever, without STAR’s express
permission, is strictly forbidden.

• The contents of this manual are subject to change without notice.

• All efforts have been made to ensure the accuracy of the contents of this manual at the time of printing. However,
should any errors be found, STAR would greatly appreciate being informed of them.

• The above notwithstanding, STAR can assume no responsibility for any errors in this manual.

© Copyright 1986, 1999 Star Micronics Co., Ltd.

TABLE OF CONTENTS

1. OUTLINE..............................................................................................1

2. UNPACKING AND INSTALLATION................................................2

2-1. Unpacking .................................................................................... 2

2-2. Installation of Paper Holders and Re-Roll Prevention Guard

(Only Model DP-8340FC) ...........................................................3

2-3. Handling Notes.............................................................................4

3. PART IDENTIFICATION AND NOMENCLATURE ........................5

3-1. Power Supply Unit .......................................................................5

3-2. Printer...........................................................................................6

3-3. Part Functional Description..........................................................7

4. INSTALLATION OF INK RIBBON AND PAPER.............................8

4-1. Installation of Ink Ribbon ............................................................8

4-2. Removal of Ink Ribbon................................................................9

4-3. Paper Insertion ...........................................................................10

4-3-1. Model DP8340FC ...........................................................10

4-3-2. Model DP8340SC ...........................................................11

4-4. Paper Removal ...........................................................................12

5. CONTROL CODES ............................................................................13

6. GENERAL SPECIFICATIONS..........................................................22

7. INTERFACE .......................................................................................26

7-1. Interface Specifications ..............................................................26

7-2. Interface Timing.........................................................................26

7-3. Connectors and Signals ..............................................................27

7-4. Setting of DIP Switches .............................................................28

7-5. Peripheral Unit Drive Circuit .....................................................29

7-6. Emergency Suspension ..............................................................29

8. CHARACTER CODE LIST................................................................30

9. FONT LIST .........................................................................................39

10. WHEN POWER IS SUPPLIED BY THE USER .............................52

– 1 –

1. OUTLINE

The DP8340 series of serial dot matrix printers is for use in ECR, POS, electronic
instruments, banking machines and computer peripheral equipment.
The DP8340 series include the following features;

1) 2 color printing (Red and Black)

2) High-speed bidirectional printing (2 line/sec, 40 columns per line)

3) 9-pin print head

4) Parallel interface (Centronics compatible)

5) Commands for expanded characters, inverted characters, emphasized char-

acters, and red and black printing are provided, which makes the printer
very versatile.

6) Simultaneous Data Communication and Printing

7) 2 Peripheral Drivers

Model Name Notation

– 2 –

2-1. Unpacking

After opening the box, check if all necessary accessories are included.

(A) Printer

(B) Power Supply Unit

Figure 2-1. Unpacking

2. UNPACKING AND INSTALLATION

1 Printer
2 User’s Manual
3 Paper Holders

4 Re-Roll Prevention Guard
5 Ink Ribbon
6 DIP Switch Cover

1

1 Power Supply Unit
2 User’s Manual

– 3 –

2-2. Installation of Paper Holders and Re-Roll Prevention

Guard (Only Model DP8340FC)

Install the Paper Holders in the outermost holes in the rear of the printer.

Figure 2-2. Installation of Paper Holders

– 4 –

Install the Re-Roll Prevention Wire in the holes of the printer cover. Twisting the
Wire as shown in the figure below, will make the installation easier.

Figure 2-3. Installation of Re-Roll Prevention

2-3. Handling Notes

(1) Install the printer near an easily accessible socket-outlet.
(2) Place the unit on a flat and stable surface for operation.
(3) Do not connect the AC Power Plug to the same outlet used for other noise

generating devices (large motors, etc.).

(4) Be careful not to drop paper clips, pins and other foreign objects into the

unit.

(5) Wipe off dirt with a soft cloth soaked in alcohol or benzine. Do not use

Lacquer thinner, Trichlorethelene or Ketone solvents because they may

damage plastic parts.
(6) Use a soft brush, etc. for cleaning the printer mechanism and PCB.
(7) Keep hands out of printer while power is on.
(8) Do not attempt to print when there is no ink ribbon or paper in the unit. The

print head life could be severly reduced.
(9) If the paper is fastened tightly to the roll, the paper may not detach from the

roll when the end is reached.

If this happens, the no paper detection function and paper feed will not

operate.
(10) Always keep the printer cover attached when printing to prevent paper

jams, noise, and other problems.
(11) Always turn the power off before opening the printer cover. (e.g. When

renewing a ink ribbon)

– 5 –

3. PART IDENTIFICATION AND NOMENCLATURE

3-1. Power Supply Unit

Figure 3-1. Power Supply Unit

DC Power Connector (Output)

Shape of AC Power plug will
vary according to destinations.

– 6 –

3-2. Printer

Figure 3-2. Printer: Front View

Figure 3-3. Printer: Rear View

– 7 –

3-3. Part Functional Description

(1) AC Power Plug Connect to an outlet of the specified voltage.
(2) DC Power Outlet Supplies DC 12V power to the printer.
(3) Printer Cover Protects the printer against dust and reduces noise.
(4) POWER Lamp Lights up (green LED) when power is on.
(5) ON LINE Lamp Lights up (green LED) when the unit is in the online

mode.

(6) ALARM Lamp Lights up (red LED) when printer operation is not

normal, or the printer is out of paper. It is necessary
to install paper into the printer and press the ON
LINE Button to recover from paper empty status.
Turn off the printer power in order to recover from
abnormal operation.

(7) ON LINE Button Toggles between the on-line and off-line modes. The

printer will go on-line after turning power on.

(8) FEED Button Momentary operation of this button provides one

line feed. Pressing this button continuously will
cause continuous paper feed. If power is turned on
while pressing this button, self printing*1 will be
performed.

(9) Interface Connector Connects the printer to host computers. Check that

both computer and printer are off before connecting.

(10) DIP Switches Allows for setting of various functions according to

user requirements.

(11) Peripheral Drive Connects the printer to the peripheral devices such

Output as Cash Drawer, Paper Cutter and Paper Take-Up

Device etc. to drive them.

*1 Self Printing This printer has another convenient function, the

Automatic Test Printing. With the ink ribbon and
paper properly installed in the printer, turn the power
ON while holding down the Feed switch. Test print­ing will start and stop again automatically.

– 8 –

4. INSTALLATION OF INK RIBBON AND PAPER

4-1. Installation of Ink Ribbon

(1) Turn power off, lift the Printer Cover up and remove it.
Note: Be careful not to touch the print head immediately after printing,

because it can get very hot.

Figure 4-1. Printer Cover Removal

(2) Unwind ribbon so that the spools are separated as shown in Figure 4-3.

Hold the ribbon taut as shown with the drive pins facing down and slide the

ribbon between the print head and the platen. While keeping the ribbon taut,

wrap one side around the black ribbon guide on the end of the platen and

drop one spool on the spool shaft. As you move the spool downwards, move

the detecting lever aside to allow the spool to drop into place. Make sure the

spool drive pins engage with the spool drive holes. As the spool drops into

place there will be a click.
(3) While continuing to hold the ribbon taut, install the remaining ribbon spool

in a similar fashion.
(4) Turn the spool that rotates freely to take up the ribbon slack.

Ribbon Life

Description

Ribbon life

Black Red

SF-03BR Approx. Approx.
(Fuji Kagakushi 0.8 million 0.4 million
Kogyo Co., Ltd.) characters characters

– 9 –

Figure 4-2. Installation of Ink Ribbon

Figure 4-3. Ribbon Spools

4-2. Removal of Ink Ribbon

Hold the spool and lift gently, rotating it until the ribbon sags. Push the ribbon
detecting lever out, lift the spool until it comes off the shaft. Remove the second
spool in a similar manner.
(Do not apply excessive force when lifting spools.)

Ribbon Life

Description

Ribbon life

Black

SF-03B Approx.
(Fuji Kagakushi 0.8 million
Kogyo Co., Ltd.) characters

– 10 –

4-3. Paper Insertion

4-3-1. Model DP8340FC

(1) Cut the Roll Paper end straight and square. Hold the roll so that the paper

comes from the bottom.
(2) Attach the Roll Paper to the Holders Paper by slipping one side of the roll

onto the Hub and pulling the other Hub out to allow the roll to slip in place.
(3) Insert the paper evenly into the Paper Insertion Slot.
(4) Turn the Power Switch “ON”, and press the FEED Button. The paper will

be fed into the unit.

Figure 4-4. Paper Insertion (1) [Model DP8340FC]

Figure 4-5. Paper Insertion (2) [Model DP8340FC]

– 11 –

4-3-2. Model DP8340SC

1. Make a straight cut along the top of the paper, about 1/4 inch away from the

sprocket holes, (as shown in the figure). If there is perforation, cut the paper

on the perforation.

2. Insert the paper squarely into the paper insertion slot until the ALARM lamp

goes out. Then, hold down the FEED switch to advance the paper 8 lines,

and release the switch when 8-line feeding is completed.

If the paper is not fed straight during 8-line feeding, straighten the paper by

pulling it back slowly as you hold the paper release lever down. If a sprocket

hole is torn or enlarged, recut the paper and reinsert it as before.

3. After confirming that the paper has been fed in straight, feed the paper

continuously by holding the feed switch down.

4. Release the feed switch when the paper emerges through the paper outlet.

Figure 4-6. Paper Insertion (1) [Model DP8340SC]

Figure 4-7. Paper Insertion (2) [Model DP8340SC]

– 12 –

4-4. Paper Removal

Cut the paper close to the slot and use the feed button until paper has passed
completely through the printer.
Note: Do not try to remove the paper by hand as it could become crooked and

get jammed inside the printer.

– 13 –

5. CONTROL CODES

CODE

LF
(0A)

H

FUNCTION

Print and line feed instruction

OUTLINE

The LF code causes the data in the line buffer to be printed,
followed by a single line feed. When the line buffer is empty,
only the feed takes place.

CODE

CR
(0D)

H

FUNCTION

Print and line feed instruction

OUTLINE

Same function as of LF code.
However, when the DIP switch 3 is ON, the CR code becomes
invalid.

CODE

SO
(0E)

H

FUNCTION

Expanded character instruction

OUTLINE

This code causes the printer to print expanded characters
twice as wide as the regular ones. This remains in effect until
a DC4 code is received.

CODE

DC4
(14)

H

FUNCTION

Release from expanded characters

OUTLINE

The expanded character instruction is released by the DC4
code, and the succeeding data is printed as regular width
characters.

CODE

ESC-1
(1B)

H (2D)H (01)H or (1B)H (2D)H (31)H

FUNCTION

Underline mode selection

OUTLINE

All data received after this code is underlined until a ESC-0
is received.

CODE

ESC-0
(1B)

H (2D)H (00)H or (1B)H (2D)H (30)H

FUNCTION

Release from underline mode

OUTLINE

The underline mode selection is released by this code.

– 14 –

CODE

SI
(0F)

H

FUNCTION

Inverted print instruction

OUTLINE

This function causes the printing to be inverted. This code
must be received at the beginning of a line. If this code is
received anywhere other than at the beginning of a line, it is
disregarded. Accordingly, normal characters and inverted
characters, can not be mixed on the same line.

CODE

DC2
(12)

H

FUNCTION

Release from inverted print instruction

OUTLINE

The inverted print instruction is released by this code. This
code must be received at the beginning of a line.

CODE

ESC E
(1B)

H (45)H

FUNCTION

Emphasized print mode instruction

OUTLINE

Data following this command is printed with emphasized
characters.
In this mode, characters are printed in a single direction.

CODE

ESC F
(1B)

H (46)H

FUNCTION

Release from emphasized print instruction

OUTLINE

Emphasized print is released.

CODE

ESC 4
(1B)

H (34)H

FUNCTION

Red character print instruction

OUTLINE

This command causes subsequent data to be printed with red
characters.
The instruction is released by the code, ESC 5.
Red and black characters may be intermixed.
This command is ignored when DIP switch 5 is OFF.

CODE

ESC 5
(1B)

H (35)H

FUNCTION

Release from red character print instruction

OUTLINE

The red character print instruction is released by this code.

– 15 –

CODE

ESC R n
(1B)

H (52)H n

FUNCTION

Select an international character.

OUTLINE

This command selects one of the international character sets
in accordance with the value of “n” as shown below.
n = 0 : U.S.A. 3 : England 6 : Italy

1 : France 4 : Denmark 7 : Spain

2 : Germany 5 : Sweden 8 : Japan
International character set can be specified using the DIP
Switches. However, control code settings have priority.For
international characters, please refer to the character code
chart in Section 8, or to the font chart in Section 9.

CODE

ESC & 0 n1 n2 [m0 m1 m2 m3 m4 m5] n2-n1+1
(1B)H (26)H (00)H

n

1 n2 [m0 m1 m2 m3 m4 m5] n2-n1+1

FUNCTION

Define download character.

OUTLINE

In this section we will define “download characters”.
This printer is able to print the characters expressed by the
character codes in Section 8. In addition, the user can create
special characters, which are called download characters.
A maximum of ten download characters can be defined, and
the defined character pattern is stored in the printer’s RAM.
This means that if the power to the printer is turned off, stored
download characters are lost.
The range of positions in which download characters can be
written is expressed by n

1, n2. It is specified by the range

(21)

H n1 n2 (7F)H. When the download character

consists of one character, the expression becomes n

1 = n2.

m

0 expresses the relation between the character pattern and

the print head. (See following explanation.) m

1 ... m5 ex-

presses the character pattern.

– 16 –

Relation Between Character Pattern Data and the Print Head

CODE

ESC % 1
(1B)

H (25)H (01)H or (1B)H (25)H (31)H

FUNCTION

Select download character

OUTLINE

This code specifies the download mode. Download char­acters defined by the previously explained <ESC>&0 code
cannot be printed unless this code is first sent to the printer.

CODE

ESC % 0
(1B)

H (25)H (00)H or (1B)H (25)H (30)H

FUNCTION

Cancel download character

OUTLINE

This code cancels the download mode and selects standard
text characters (characters appearing in the character code
chart in Section 8).
When power is turned on, standard text characters are se­lected.

SAMPLE

Let’s try an actual example of printing a download character.
We will design the download character shown below:

Next, we will define the download character.

– 17 –

If the position into which the download character is written
(the character code) is defined as (21)

H, (22)H, (23)H, then

we have n

1 = (21)H, n2 = (23)H The relation between the

character pattern data and the print head assigns the 9 pin as
unused. Therefore, m

0 = (80)H.

If data m

1 to m18 is converted to hexadecimal, it appears as

follows.

DATA TRANS

-

MISSION

PRINT SAMPLE

Data Binary Hex.

m1 10100000 A0
m2 10100000 A0
m3 10111110 BE
m4 10100000 A0
m

5 10100000 A0

Data Binary Hex.

m1 10011000 98
m2 11100100 E4
m3 10000010 82
m4 11100100 E4
m

5 10011000 98

Data Binary Hex.

m1 11111111 FF
m2 10000011 83
m3 10111101 BD
m4 11000001 C1
m

5 11111111 FF

(1) Difine download (1B)H (26)H (00)H (21)H (23)H (80)H

(A0)H (A0)H (BE)H (A0)H (A0)H
(80)H (98)H (E4)H (82)H (E4)H (98)H
(80)H (FF)H (83)H (BD)H (C1)H

(FF)H
(2) Select download (1B)H (25)H (01)H
(3) Character code (21)H (22)H (23)H (A0)H
(4) Cancel download (1B)H (25)H (00)H
(5) Character code (21)H (22)H (23)H (0A)H

CODE

ESC a n
(1B)

H (61)H n

FUNCTION

n-line feed

OUTLINE

After printing the data in the current line, n lines are fed by this
code. The value of n ranges from 1 to 120.

CODE

ESC C n
(1B)

H (43)H n

FUNCTION

Sets page length in lines

OUTLINE

This code sets the length of a page to n lines. The value of n
ranges from 1 to 120. On initialization, the page length
default condition will be 42 lines. The line feed pitch is one­sixth inch.

– 18 –

CODE

ESC N n
(1B)

H (4E)H n

FUNCTION

Sets bottom margin in lines

OUTLINE

Upon receiving this code, the bottom margin is set to n lines.
0

n 120; Default Value n = 0

CODE

ESC O
(1B)

H (4F)H

FUNCTION

Cancels bottom margin.

OUTLINE

Upon input of this code, bottom margin setting is cleared.

CODE

FF
(0C)

H

FUNCTION

Form feed

OUTLINE

The FF code prints the data in the current line and transports
the paper to the start of the next page.

CODE

ESC @
(1B)

H (40)H

FUNCTION

Printer initialization

OUTLINE

All printing conditions except ESC BEL n1 n2, the line buffer
and data buffer are set to the power on default condition.

CODE

ESC BEL n1 n2
(1B)H (07)H n1 n2

FUNCTION

Sets peripheral unit drive 1 pulse duration.

OUTLINE

This command sets the pulse duration for peripheral unit
drive (Paper Cutter, Take-Up Device, cash drawer, etc.)
Pulse Duration = 10 × n

1 (ms)

Delay = 10 × n

2 (ms)

1

n1 127; 1 n2 127

Default value: n

1 = n2 = 20

– 19 –

CODE

FS
(1C)

H

FUNCTION

Trigger peripheral unit drive (immediate)

OUTLINE

Causes a peripheral drive pulse to be generated immediately.

CODE

SUB
(1A)

H

FUNCTION

Trigger peripheral unit drive 2 (immediate)

OUTLINE

This command causes a peripheral unit drive 2 pulse to be
generated.
Pulse Duration : 200ms (fixed)
Delay : 200ms (fixed)

REMARKS

It is impossible to drive peripheral devices 1 and 2 at the
same time.

CODE

CAN
(18)

H

FUNCTION

Clears print buffer

OUTLINE

Upon input of this code the data buffer and line buffer is
cleared.

Executed by BEL code and FS code after printing.

CODE

BEL
(07)

H

FUNCTION

Trigger peripheral unit drive (Deferred)

OUTLINE

Causes a peripheral drive pulse to be generated. This code is
normally stored in the buffer and is performed as it is received
from the data queue.

– 20 –

Character Code List

Character Code Function

1 LF (0A)H Print and line feed instruction
2 CR (0D)H Print and line feed instruction

(same as LF)
3 SO (0E)H Expanded character instruction
4 DC4 (14)H Expanded character release
5 ESC-1 (1B)H (2D)H(01)H Underline instruction

(1B)H (2D)H (31)H

6 ESC-0 (1B)H (2D)H(00)H Underline release

(1B)H (2D)H (30)H
7 SI (0F)H Inverted print instruction
8 DC2 (12)H Inverted print release
9 ESC E (1B)H (45)H Emphasized print instruction

(one-way printing)
10 ESC F (1B)H (46)H Emphasized print release
11 ESC 4 (1B)H (34)H Red character print instruction
12 ESC 5 (1B)H (35)H Red character print release
13 ESC R n (1B)H (52)H n Select an international character set
14 ESC & 0 ... (1B)H (26)H (00)H ... Define download character
15 ESC % 1 (1B)H (25)H (01)H Select download characters

(1B)H (25)H (31)H

16 ESC % 0 (1B)H (25)H (00)H Cancel download characters

(1B)H (25)H (30)H
17 ESC a n (1B)H (61)H n n-line feed instruction5
18 ESC C n (1B)H (43)H n Sets page length in lines

1 n 120 (default n = 42)

19 ESC N n (1B)H (4E)H n Set bottom margin in lines

0 n 120 (default n = 0)
20 ESC O (1B)H (4F)H Cancel Bottom margin
21 FF (0C)H Form feed
22 ESC @ (1B)H (40)H Printer initialization instruction

– 21 –

Character Code Function

23 ESC BEL (1B)H (07)H Set peripheral unit drive pulse duration

n

1 n2 n1 n2 1 n1 127, 1 n2 127

(default n1 = n2 = 20)
24 BEL (07)H Trigger peripheral unit drive 1 (Deferred)
25 FS (1C)H Trigger peripheral unit drive

(Immediate)
26 SUB (1A)H Trigger peripheral unit drive 2 (immediate)
27 CAN (18)H Clears print buffer

– 22 –

6. GENERAL SPECIFICATIONS

Printing method Serial impact dot matrix printing,

9 wires
Number of print columns 40 columns, 12 CPI
Print speed Approx. 2 lines/sec
Print direction Bi-directional
Line spacing 1/6 inch
Paper feed method Friction Feed or Sprocket-feed
Paper feed speed Approx. 12 lines/sec
Character set ASCII 96

Special 64

Block graphics* 64

Katakana (Japanese) 64

IBM Special 83

IBM Block graphics* 50

Download 10
Font configuration Ordinary characters 5 × 9 dots

Block graphics* 6 × 6 dots

(6 × 8 dots)

* Graphic Feed Not Available
Character size 2.42 (H) × 1.71(W) mm
Dot spacing 0.35 (H) × 0.35 (W) mm
Print area 84.3 mm
Print Buffer Approx. 1.5 KB
Interface Parallel Interface (Centronics compatible)
Peripheral drive 2 outputs (each 1A max. at 12V. Both cannot

operate at the same time.)
External dimensions

(Printer) 202(W) × 200(D) × 98(H) mm

(without paper holder, DC Power Connector)

(Power supply unit) 60(W) × 120(D) × 36(H) mm (without AC cable)

Weight

(Printer) Approx. 1.9 kg
(Power supply unit) Approx. 0.4 kg (without AC cable)

Power supply unit

Four supplies available with following ratings

Input Output

AC 100 – 240 V DC 12.0 V ± 5%

47Hz – 63 Hz

0.8 A Max 2.0 A

– 23 –

Paper specification

Paper type Ordinary and carbonless copy paper
Size Paper width 114.3 mm (4.5 inches)

Roll diameter 80 mm outer diameter (Max)

Thickness (single) 0.07 mm (52.3 g/m

2

) to 0.09 mm (64g/m2)

(2 copy) One copy and one original (max 0.13 mm)

Paper end Paper should not be attached to the core

Ink ribbon specification

Color Black and red / Black only
Ribbon material Nylon (#40 denier)
Ribbon size 13mm × 6mm
Spool 13mm (width), 35mm in diameter (two spool)
Recommended ribbon SF-03BR (Black and red), SF-03B (Black)

(manufactured by Fuji Kagakushi Kogyo Co., Ltd.)

or approved equivalent.
Operating conditions Temperature +5˚C

-

+40˚C

Humidity 10%

-

80%RH

Storage conditions Temperature

-

20˚C - +70˚C

Humidity 5%

-

95%RH (+40˚C)
Head life 70 million characters
Printer reliability 5.0 million lines MCBF (except head life)

– 24 –

Figure 6-1. Roll Paper and Print Area [Model DP8340FC]

Figure 6-2. Sprocket-feed Paper and Print Area [Model DP8340SC]

– 25 –

Figure 6-3. External Dimensions (Printer)

Figure 6-4. External Dimensions (Power Supply Unit)

120mm 2.0m36mm

60mm

Shape of AC Power plug will
vary according to destinations.

– 26 –

7. INTERFACE

7-1. Interface Specifications

This printer has a parallel interface to communicate with the computer.
The operating specifications of the parallel interface are as follows.
(1) Data transfer rate 1000 to 6000 characters per second
(2) Synchronization Via externally supplied STROBE pulses
(3) Handshaking ACK and BUZY signals
(4) Logic level Compatible with TTL level

7-2. Interface Timing

Figure 7-1. Interface Timing Diagram

Figure 7-2. Typical Interface Circuit

Signal Name Circuit Example

DATA1-DATA8

(To Printer)

STROBE

(To Printer)

BUZY, ACK

(From Printer)

– 27 –

Pin No.Signal Name IN/OUT Function

Signals when data is ready to be read.Signal

1 STROBE IN gose from HIGH to LOW (for at least 0.5

microsec.) when data is available.
These signals provide the information of the

2-9 DATA1-8 IN

first to eighth bits of parallel data.Each signal
is at HIGH level for a logical 1 and at a LOW
level for a logical 0.

10 ACK OUT

A 9 microsecond LOW pulse acknowledges
receipt of data.
When this signal goes LO W, the printer is ready
to accept data. When the printer is in one of

11 BUSY OUT

the conditions below.”HIGH” is set.

1. Data being entered.

2. Off line.

3. Error condition.

12

PAPER

OUT

This signal is normally LOW. It will go HIGH

OUT if the printer runs out of paper.

13 SELECTED OUT This signal is HIGH when the printer is online.

14-15 N/C Unused

16

SIGNAL

Signal ground.

GND

17

CHASSIS

Chassis ground, isolated from logic ground.

GND

18 N/C Unused

19-30 GND Twisted pair return signal ground level.

31 RESET IN

When this signal gose LOW, the printer is reset
to its power-on condition.
This signal is normally HIGH. This signal goes

32 ERROR OUT

LOW to signal that the printer cannot print
due to an error condition.
Refer to Item 7-6 Emergency Suspension.

33 EXT GND External ground.

34-36 N/C Unused.

7-3. Connectors and Signals

Figure 7-3. Parallel Interface Connector (Printer side)

– 28 –

7-4. Setting of the DIP Switches

Factory settings : all ON

Switch Function ON OFF

1 Character Table (See below)
2

3 Control cord CR Disable Enable
4 (*1) Printing Direction (Red printing) Bi. Uni.
5 (*2) Ink Ribbon 2-color monochrome

6

7 International Character Set (See below)

8

(*1) DIP Swich 4 should be set to OFF when you use 2-part sprocket

paper having the seam on the right since the ribbon snags at the
seam if shifted.
The DIP Switch 4 Should be otherwise set to ON.

(*2) DIP Swich 5 should be set to ON when you use a 2-color ribbon

for 2-color printing.
It should be set to OFF when a monochrome ribbon is used.

Character Table

SW NO. USA & Europe IBM#1 IBM#2 JAPAN

1 ON OFF ON OFF
2 ON ON OFF OFF

International Character Set

SW NO. USA France Germany England Denmark Sweden Itary Spain

6 ON OFF ON OFF ON OFF ON OFF
7 ON ON OFF OFF ON ON OFF OFF
8 ON ON ON ON OFF OFF OFF OFF

Note: When DIP Switches 1 and 2 are set to OFF, the printer always

selects the Japan international character set regardless of the status
of DIP Switches 6, 7 and 8.

When DIP Swiches 1 and 2 are otherwise set, the printer selects

the character set determined by DIP Switches 6, 7 and 8.

Each international character set is selectable through software

regardless of the selection by DIP Switches.

Figure 7-4. DIP Switch Setting

– 29 –

7-5. Peripheral Unit Drive Circuit

The Control Board of this printer is equipped with a circuit for driving peripheral
units (Paper Cutter, Take-Up Device, Cash Drawer, etc.)
The 6P Modular Jack is used as the Drive Circuit. When using this circuit,
connect the peripheral unit cable to the 6P Modular Jack (cable is not included).
Note: Peripheral unit drive circuit connector only connects to peripheral units

such as cash drawers, etc.

Do not connect it to a telephone.

1. Drive Circuit

Drive

12V,MAX. 1A

Output

Absolute Ratings (Ta = 25˚C)

D1 Voltage Breakdown 100V
D2 Peak Forward Current 1A

Note: It is impossible to drive pe-

ripheral devices 1 and 2 at
the same time

[Printer side]

Note: Make sure that the metal structural parts of the peripheral device are

connected to frame Ground (Pin 1) to provide a static drain path.

2. Control code
Codes for Drive Circuit control are ESC BEL n

1 n2, BEL, FS and SUB.

Refer to the Control Codes in Section 5.

7-6. Emergency Suspension

If an error condition is detected during operation, the printer will stop printing and
ERROR signal will go Low.
It is necessary to turn the printer power off and on again in order to recover from
the emergency suspension.
This printer can detect the following error conditions:

a. Motor Lock
b. Defective timing detector

Figure 7-5. Drive Circuit

Figure 7-6. 6P Modular Jack

Connector

Figure 7-7. Recommend Cable

– 30 –

8. CHARACTER CODE LIST

1) U.S.A. & Europe (DIP SW1: ON, SW2:ON)

– 31 –

– 32 –

2) IBM Character Set #1 (DIP SW1: OFF, SW2: ON)

– 33 –

– 34 –

3) IBM Character Set #2 (DIP SW1: ON, SW2: OFF)

– 35 –

– 36 –

4) JAPAN (DIP SW1: OFF, SW2: OFF)

– 37 –

– 38 –

International Character Sets

– 39 –

9. FONT LIST

1) U.S.A. & Europe (DIP SW1: ON, SW2:ON)

– 40 –

– 41 –

– 42 –

2) IBM Character Set #1 (DIP SW1: OFF, SW2: ON)

– 43 –

– 44 –

– 45 –

3) IBM Character Set #2 (DIP SW1: ON, SW2: OFF)

– 46 –

– 47 –

– 48 –

4) JAPAN (DIP SW1: OFF, SW2: OFF)

– 49 –

– 50 –

– 51 –

International Character Sets

– 52 –

When printer power is supplied by the user rather than through the accessory
power source unit, please be careful of the following points.

Note 1: The power supply must be +12V 2A or above. An electrolytic ca-

pacitor (C = 4700µF/25V to 6800µF/25V) must be connected across
the output of the power supply.

Note 2: A DC power plug is available as an option.

Reference: Design the power supply referring to the power supply circuit shown

below.

Note: A line noise filter must be used to prevent line transients from passing

through power supply. Filter design to be determined by environmental
noise requirements.

10. WHEN POWER IS SUPPLIED BY THE USER

+10%
–5%

+12V

GND

GND

– 53 –

VAC 14V C2 100 ~ 200µF/25V
VDC 12V ZD1 VZD = 14V (1W)

IAC 2 ~ 3A C3 4700 ~ 6800µF/25V

C1 6800µF/25V TR1 2SD633 (TOSHIBA)

Other parameters may be determined by user.

Figure 10-1. Power Supply Reference Circuit

+10%
–5%

-

MEMO

-

1999.05.30

Printed in Japan, 80870175

ELECTRONIC PRODUCTS DIVISION
STAR MICRONICS CO., LTD.

536 Nanatsushinnya, Shimizu, Shizuoka
424-0066 Japan
Tel: [phone], Fax: [phone]

Please access the following URL
http://www.star-micronics.co.jp/service/sp_sup_e.htm
for the lastest revision of the manual.

OVERSEAS SUBSIDIARY COMPANIES
STAR MICRONICS AMERICA, INC.

70-D Ethel Road West, Piscataway, NJ 08854 U.S.A
Tel: [phone], Fax: [phone]

STAR MICRONICS U.K. LTD.

Star House, Peregrine Business Park, Gomm Road,
High Wycombe, Bucks, HP 13 7DL, U.K.
Tel: [phone], Fax: [phone]