Samsung 2 COLOR THERMAL PRINTER SRP-275 User manual

printed in korea
2004. 09
Operator’s manual
POS impact dot matrix printer
SRP-275
ELECTRO - MECHANICS
ELECTRO - MECHANICS

Safety Precautions
In using the present appliance, please keep the following safety regulations in
order to prevent any hazard or material damage.
WARNING
Violating following instructions can cause serious injury or death.
Do not plug several products in one multi-outlet.
This can provoke over-heating and a fire.
If the plug is wet or dirty, dry or wipe it before usage.
If the plug does not fit perfectly with the outlet, do not plug in.
Be sure to use only standardized multi-outlets.
You must use only the supplied adaptor.
It is dangerous to use other adaptors.
Do not pull the cable to unplug.
This can damage the cable, which is the origin of a fire or
a breakdown of the printer.
Keep the plastic bag out of children’s reach.
If not, a child may put the bag on his head.
Do not plug in or unplug with your hands wet.
You can be electrocuted.
If you observe a strange smoke, odor or noise from the
printer, unplug it before taking following measures.
Switch off the printer and unplug the set from the mains.
After the disappearance of the smoke, call your dealer to repair it.
PROHIBITED
PROHIBITEDPROHIBITED
PROHIBITED
TO UNPLUG

SRP-275
All rights reserved. No part of this publication may reproduced, stored in a retrieval, or transmitted in any form
or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written
permission of SAMSUNG ELECTRO-MECHANICS.
No patent liability is assumed with respect to the use of the information contained herein. While every
precaution has been taken in the preparation of this book, SAMSUNG ELECTRO-MECHANICS assumed no
responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of
the information contained herein.
Neither SAMSUNG ELECTRO-MECHANICS nor its affiliates shall be liable to the purchaser of this product or
third parties for damages, losses, costs, or expenses incurred by purchaser or third parties as a result of :
accident, misuse, or abuse of this product or unauthorized modifications, repairs, or alterations to this product,
or (excluding the U.S.) failure to strictly comply with SAMSUNG ELECTRO-MECHANICS s operating and
maintenance instructions.
SAMSUNG ELECTRO-MECHANICS shall not be liable against any damages or problems arising from the
use of any options or ant consumable products other than those designated as Original Samsung products or
Samsung Approved products by SAMSUNG ELECTRO-MECHANICS.
Notice
The contents of this manual are subject to change without notice.
Copyright ' 2004 SAMSUNG ELECTRO-MECHANICS. CO., LTD
EMC and Safety standards Applied
WARNING
The connection of a non-shielded printer interface cable to this printer will invalidate the EMC standards of this device. You are
cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to
operate the equipment.
CE Marking
WARNING
Violating following instructions can cause serious injury or death.
Keep the desiccant out of children’s reach.
If not, they may eat it.
Install the printer on the stable surface.
If the printer falls down, it can be broken and you can
hurt yourself.
Use only approved accessories and do not try to
disassemble, repair or remodel it for yourself.
Call your dealer when you need these services.
Do not let water or other foreign objects in the printer.
If this happened, switch off and unplug the printer before
calling your dealer.
Do not use the printer when it is out of order.
This can cause a fire or an electrocution.
Switch off and unplug the printer before calling your dealer.
Safety Precautions
TO UNPLUG
PRINTER PRINTER
PROHIBITED
PROHIBITED
PROHIBITED
DISASSEMBLING
PROHIBITED
Do not bend the cable by force or leave it under
any heavy object.
A damaged cable can cause a fire.
PROHIBITED

Table of contents
Chapter 1 . Setting up the printer
1.1. Unpacking 1-2
1.2. Choosing a place for the printer 1-2
1.3. Connecting the cables 1-3
1.4. Installing ribbon cassette 1-4
1.5. Installing or replacing the paper roll 1-5
1.6. Changing the frame control paper position 1-6
1.7. Installing wall mount 1-7
1.8. Using the operation panel 1-8
1.9. Self test 1-9
Chapter 2 . Troubleshooting
2.1. ERROR LED blinking pattern 2-2
2.1. The printer does not start printing 2-3
2.2. The printer stops printing 2-4
2.3. You want to check the operation of the printer by itself 2-5
2.4. printing is poor 2-6
2.5. You want to check a software program 2-7
Chapter 3 . DIP Switch
3.1. Setting the DIP Switches 3-2
3.1.1 DIP Switch Setting for Epson(ESC/POS) mode 3-2
3.1.2 DIP Switch setting for Citizen(iDP 3550) mode 3-3
3.1.3 DIP Switch setting for Star(SP500) mode 3-4
3.2. Setting the Memory Switches 3-5
3.2.1 Memory Switch setting for Epson(ESC/POS) mode 3-5
3.2.2 Memory Switch setting for Star(SP500) mode 3-6
3.3 Changing the DIP Switch setting 3-21
Chapter 5 . Control commands list
5.1. Commands 5-2
5.2. Explanation of terms 5-2
5.3 Explanation processing 5-3
5.3.1 Undefined codes 5-3
5.3.2 Undefined commands 5-3
5.3.3 settings outside the defined range 5-3
5.4 Commands for SRP-275 Series 5-4
5.4.1 Commands list for Epson mode (TM-U220) 5-4
5.4.2 Commands description for Epson mode (TM-U220) 5-6
5.4.3 Commands list for STAR mode (SP500) 5-74
5.4.4 Commands description for STAR mode (SP500) 5-76
5.4.5 Commands list for CITIZEN mode (iDP3550/3551) 5-123
5.4.6 Commands description for CITIZEN mode (iDP3550/3551) 5-125
Chapter 6 . Reference information
6.1. Printing specification 6-2
6.2. Paper specification 6-2
6.3 Ribbon cassette specification 6-2
6.4 Electrical characteristics 6-3
6.5 Reliability 6-3
6.6 Environmental 6-3
6.7 Dimensions & weight 6-4
6.8 Optional features 6-4
4.8. Page 17 (PC866 : Russian) 4-9
4.9. Page 18 (PC852 : DosLatin2) 4-10
4.10. Page 19 (PC858 : Euro) 4-11
4.11. Page 21 (PC862 : Israel) 4-12
4.12. Page 22 (PC864 : Arabic) 4-13
4.13.Page 23 (Thai character code 42) 4-14
4.14. Page 24 (WPC1253 : Greek) 4-15
4.15. Page 25 (WPC1254 : Turkish) 4-16
4.16. Page 26 (WPC1257 : Baltic) 4-17
4.17. Page 27 (FARSI) 4-18
4.18. Page 28 (WPC1251 : Russian) 4-19
4.19. Page 29 (PC737 : Greek) 4-20
4.20. Page 30 (PC775: Baltic) 4-21
4.21. International character code table 4-22
Chapter 4 . Code table
4.1. Page 0 (PC437 : USA, Standard Europe ( International Character Set : USA )) 4-2
4.2. Page 1 (Katakana) 4-3
4.3. Page 2 (PC850 : Multilingual) 4-4
4.4. Page 3 (PC860 : Portuguese) 4-5
4.6. Page 5 (PC865 : Nordic) 4-7
4.7. Page 16 (WPC1252 : Latin1) 4-8

Introduction
SETTING UP THE PRINTER
CONTENTS
1.1 Unpacking 1-2
1.2 Choosing a place for the printer 1-2
1.3 Connecting the cables 1-3
1.4 Installing ribbon cassette 1-4
1.5 Installing or replacing paper roll 1-5
1.6 Changing the frame control paper position 1-6
1.7 Installing wall mount 1-7
1.8 Using the control panel 1-8
1.9 Self test 1-9
CHAPTER 1
1
The SRP-275 is a high-quality impact dot matrix POS printer.
This one-station printer has the following features.
Compact design and light-weight.
High-speed printing using logic-seeking(5.3LPS).
Easy to use : clamshell mechanism.
High reliability and long life due to the use of stepping motors for head carriage return and paper feeding.
Two color printing (red/black) available.
Various formats are possible because the paper feeding pitch is selectable.
High general control utility based on the ESC/POS (TM) standard.
The head can be driven due to the internal drawer interface.
Character font (7X9, 9X9) is selectable.
The auto cutter uses a circular method with a high-quality blade and a long life
(Approximately 1,000,000 cuts).
Paper near end switch is standard.
A internal AC adaptor.
Please be sure to read the instructions in this manual carefully before using your new printer.
Front View Rear View

1-31-2
1.1 Unpacking
Your printer box should include the items shown in the illustration below.
If any items are damaged or missing, please contact your dealer.
1.2 Choosing a place for the printer
Avoid locations that are subject to direct sunlight or excessive heat.
Avoid using or storing the printer in a place subject to excessive temperature or moisture.
Do not use or store the printer in a dirty location.
When setting up the printer, choose a stable, horizontal location.
Intense vibration or shock may damage the printer.
Ensure the printer has enough space to be used easily.
1.3 Connecting the cables
Plugging in AC adaptor
Connect the AC adaptor according to the following procedure.
Connecting the interface cable
Before connecting the printer to the power supply, make sure that the voltage and power
specifications match the printer’s requirements. Using an incorrect power supply can
cause serious damage to the printer.
1) Make sure the printer is turned off.
2) Before inserting the AC adaptor, connect the power cord.
3) Insert the AC adaptor as shown.
4) Plug the AC adaptor cable into the printer’s power connector.
5) Plug the power cord into the outlet, and turn on the power.
Connect the interface cable according to the following procedure.
1) Turn off printer and the ECR (host computer) host.
2) Plug the interface cable into the interface connector on the printer then fasten the screw on
both sides of the connector.
3) Plug the drawer kick-out cable into the drawer kick-out connector on the printer.
(When removing the drawer kick-out cable, press on the connector’s clip while pulling out.)
Connect the printer to the host ECR (host computer) though an interface cable matching the specification
of the printer and the host ECR (host computer). Be sure to use a drawer that matches the printer’s
specification.
Depending on the interface your system uses, either connect the serial, parallel, USB or Ethernet
communication cable to the appropriate connector on the back of the printer. Cables are provided by your
dealer or system installer.
Setting up the printer
CHAPTER 1
SRP-275 A , C
AC adaptor Power cord
Operator’s manual
Quick reference sheet
Paper rollRibbon Cassette

1-51-4
1.4 Installing ribbon cassette
1) Before inserting the ribbon cassette, turn the
knob clockwise to prevent twisting the ribbon.
2) Open the front cover of printer.
3) Take out the old ribbon cassette if there is one.
4) Insert the new ribbon cassette as shown
and pay particular attention to the placement
of the ribbon behind the Printer Head.
5) During inserting the ribbon cassette, turn the
knob clockwise again to make sure the ribbon
moves freely in the cassette.
6) Close front cover of printer.
Malfunctions and other problems may arise if other than specified ribbon cassettes are
used in the printer. The Warranty may be void if other than specified ribbon cassettes are
used. Contact your dealer or place of purchase for more information about proper ribbon
cassettes.
1.5 Installing paper roll
Notice the caution label and do not touch the auto cutter blade when you open rear cover.
1) To prevent data loss, make sure that the printer
is not receiving data.
2) Open the rear cover by pushing the open button
and push the arrow mark back.
3) Remove the used paper roll core if there is one.
4) Insert the paper roll as shown.
5) Be sure to note the correct direction that the
paper should come off the paper roll.
6) Pull out small amount of paper as shown.
Then close the rear cover and tear off the extra
paper by pulling it toward the front of the printer.
Setting up the printer
CHAPTER 1

1-71-6
Setting up the printer
CHAPTER 1
1.8 Installing wall mount (Option)1.7 Changing the frame control paper position
1) Turn the Set over and attach the Bracket hanger
to the Frame base then tighten four screws.
2) Attach the Bracket mount to the wall firmly with
the eight screws. Be sure that the Bracket
attached properly to match the direction of arrow
as shown. And the Bracket mount should be
always fixed vertically.
3) Insert the Bracket hanger of Set to the Bracket
mount as shown.
1) Open the rear cover.
2) Remove the frame control paper by loosing
the two screws(3 x 6).(76 mm default)
3) Reattach the frame control paper in you want.
(Insert and tighten two screws(3 x 6) to reattach.)
4) Close the rear cover.
5) Change the Memory Switch setting for changing
paper roll width. (See the instructions "Setting the
Memory Switches"(3.1) in Chapter 3.)

1-7
1.9 Using the operation panel
Most of the functions of this printer are governed by software, but you can monitor the printer s status by
looking at the lights on the operation panel and for some procedures you will use the buttons.
This indicator light is on when the power is turned on. It blinks when the printer is in the self
test printing standby state. Always wait until this indicator light stops blinking before you start
using the printer and before you turn it off.
operation panel
- POWER LED (Green Color)
When this indicator light is on (but not blinking), it means that the printer is out of paper or
almost out of paper or the printer covers are open. When this light blinking, there is an error.
(See "ERROR LED blinking pattern" (2.1) in Chapter 2.) If you see this light blinking, turn off
the printer for a few seconds and then turn it back on. If the light is still blinking, call your
supervisor or a service person.
- ERROR LED (Red Color)
When this indicator light is on, it means that the paper near end. Replace the new paper roll.
When ERROR and PAPER OUT indicator lights are on it means paper end.
Install the paper roll.(See"Installing paper roll"(1.5)in Chapter 1.)
- PAPER OUT LED (Red Color)
Use this button to feed paper or to start self test and for hexadecimal dump mode.
(See the instructions "Self test" (1.7) in this chapter for self test.)
(See the instructions "Hexadecimal dump" (2.6) in Chapter 2 for hexadecimal dump mode.)
- FEED button
Setting up the printer
CHAPTER 1
1-6
1.9 Self test
The self test let you know if your printer is operating properly. It checks the printing quality, ROM version,
DIP Switch settings, memory switch settings and statistic data.
The test is independent of any other equipment or software, so it is a good idea to run it when you first set
up the printer or if you have any trouble. If the self test works correctly, the problem is in the other
equipment or the software, not the printer.
Running the self test
1) Make sure the printer is turned off and the printer cover is closed properly.
2) While holding down the FEED button, turn on the printer and continue to hold until the paper begins to
feed. The self test prints the printer DIP Switch settings and memory switch settings.
And cuts the paper and pauses. (The power light blinks.)
3) Press the FEED button to continue printing the statistic data.
4) Press the FEED button to continue printing the rolling ASCII pattern.
5) The self test mode terminates after printing the rolling ASCII pattern automatically.

2-21-11
TROUBLESHOOTING
CONTENTS
2.1 ERROR LED blinking pattern 2-2
2.2 The printer does not start printing 2-3
2.3 The printer stops printing 2-4
2.4 You want to check the operation of
the printer by itself 2-4
2.5 Printing is poor 2-5
2.6 You want to check a software program 2-6
CHAPTER 2
1-8
Note
Note

2-32-2 2-3
Are any of the operation panel lights on, If no operation panel lights are on, check the following:
- Make sure that the printer is turned on.
- Make sure that the power supply cable is correctly plugged into the printer and to the power outlet.
- Make sure if the ribbon cassette is installed.
If any of the lights are on, please check the following:
- If the POWER LED is blinking, the printer is not ready yet.
Wait until the light quits blinking and the printer is ready to use.
- If the ERROR LED is on (but not blinking), the printer is off line. Check to see that the covers are closed
and check the paper state. See "Installing paper roll" (1.5) in Chapter 1 for instructions on installing or replacing
the paper roll.
- If the ERROR LED is blinking, there is an error. In this case, turn off the printer for a few seconds and
then turn it back on. If the light is still blinking, call your supervisor or service person.
- If the PAPER OUT LED is on, check the paper roll in the printer. See "Installing paper roll" (1.5) in Chapter 1 for
instruction on installing the paper roll.
Errors that are impossible to recover
ERROR
R/W error in memory
or gate array.
After R/W checking, the
printer does not work
correctly.
Writing to, reading out, or
erasing the NV memory
for image scanning results
does not work correctly.
Recovers automatically
when the rear cover is
closed.
Description ERROR LED Blinking Pattern Recovery
High voltage error. The power supply voltage
is extremely high.
Impossible to recover.
Low voltage error. The power supply voltage
is extremely low.
Impossible to recover.
CPU execution error. The CPU executes an
incorrect address or I/F
board is not connected.
Impossible to recover.
Print head temperature
detection circuit error.
There is an abnormality
in the print head
temperature.
Impossible to recover.
If you see this light blinking, turn off the printer for a few seconds and then turn it back on.
If the light is still blinking, call your supervisor or a service person.
2.2 The printer does not start printing
This chapter gives solutions to some printer problems you may have.
2.1 ERROR LED blinking pattern
The printer stops all printer operations for the selected paper section, goes off line, and the ERROR LED
blinks when an error is detected.
When a recoverable error occurs, after the cause of the error is removed, the printer can recover from the
error by receiving an error recovery command without turning off the power:
Errors that automatically recover
ERROR
Rear cover open error
(when recoverable
error is selected) (*1)
The rear cover is opened
when printing.
Recovers automatically
when the rear cover is
closed.
Description ERROR LED Blinking Pattern Recovery
200ms
Print head
temperature error (*2)
The temperature of the
print head is extremely
high.
Recovers automatically
when the print head cools.
ERROR
Rear cover open error
(*1)
The rear cover is opened
when printing.
Recovers automatically
when the rear cover is
closed.
Description ERROR LED Blinking Pattern Recovery
200ms
Auto cutter error
(Type C only)
The auto cutter does not
work correctly.
Recovers by error recovery
command.
Home position detection
error (This is
"Mechanical error")
The home position cannot
be detected due to a
paper jam.
Recovers by error recovery
command.
(*1) This conditions are selected by MSW 8-5, 8-8. When MSW 8-5 (mapping of the
cover open status) is off, the error hasn’t occurred but there is a "paper end error"
instead. If MSW 8-8 is off, this error is handled as an automatically recoverable error.
(*2) Print head temperature error is not abnormal.
Recoverable Errors
(*1) These conditions are selected by MSW8-5 and 8-8. When MSW 8-5 (mapping of
the cover open status) is OFF, the error does not occur and a "paper end error"
occurs instead. If MSW8-8 is ON, this error is handled as a recoverable error.
Troubleshooting
CHAPTER 2
200ms

2-52-4
2.6 You want to check a software program
To use the hexadecimal dump feature, follow these steps:
1) After you make sure that the printer is off, open the rear cover of the printer.
2) Hold down the FEED button while you turn on the printer.
3) Close the rear cover.
4) Run any software program that sends data to the printer. The printer prints "Hexadecimal dump" and then all
the codes are received in a two column format. The first column contains the hexadecimal codes and the
second column gives the ASCII characters that correspond to the codes.
5) When the printing finishes, turn off the printer.
This feature allows experienced users to see exactly what data is coming to the printer.
This can be useful in finding software problems. When you turn on the hexadecimal dump function,
the printer prints all commands and other data in hexadecimal format along with a guide section to help
you find specific commands.
Hexadecimal dump
(A period(.) is printed for each code that has no ASCII equivalent.)
Hexadecimal dump
1B 21 00 1B 26 02 40 40 . ! . . & . @ @
1B 25 01 1B 63 34 00 1B . % . . c 4 . .
41 42 43 44 45 46 47 48 A B C D E F G H
2.3 The printer stops printing
2.4 You want to check the operation of the printer by itself
2.5 Printing is poor
If the ERROR LED is on (but not blinking), the printer is off line. Check to see that the covers are closed
and check the paper state. See "Installing paper roll"(1.5) in Chapter 1 for instructions on installing or
replacing the paper roll.
If the ERROR LED is blinking, there is an error. In this case, turn off the printer for a few seconds and
then turn it back on. If the LED is still blinking, call your supervisor or a service person.
Turn off the printer and check for a paper jam. To clear paper jam, follow the steps below:
Turn off the printer and check for a ribbon jam. To clear ribbon jam, follow the steps below:
1) Turn off the printer and open the rear cover of the printer.
2) Remove the jammed paper and reload the paper roll as described in Chapter 1.
3) Close the rear cover.
4) Turn on the printer.
1) Turn off the printer and open the front cover of the printer.
2) Remove the jammed ribbon and reinstall the ribbon cassette as described in Chapter 1.
3) Close the front cover.
4) Turn on the printer.
1) Check the connection at both ends of the interface cable between the printer and the computer.
Also make sure that this cable meets the specifications for both the printer and the computer.
2) The data transmission settings may be different between the printer and computer.
Make sure that the printer’s DIP Switch settings for data transmission are the same as the computer’s.
You can see the printer’s interface settings on your self test printout.
Try to run the self test to check that the printer works properly. See the self test instructions in Chapter 1
to run the self test. If the self test does not work, contact your supervisor or a service person.
If the self test works properly, check the following:
Check the state of ribbon cassette. If the ribbon cassette life ends, replace the ribbon cassette as
described in Chapter 1.
Self test
If the printer still does not print, contact your dealer or a qualified service person.
If the printer is still poor, contact your dealer or a qualified service person.
Troubleshooting
CHAPTER 2

SWITCH SETTINGS
CONTENTS
3.1 Setting the DIP Switches 3-2
3.1.1 DIP Switch Setting for
Epson(ESC/POS) mode 3-2
3.1.2 DIP Switch setting for
Citizen(iDP 3550) mode 3-3
3.1.3 DIP Switch setting for
Star(SP500) mode 3-4
3.2 Setting the Memory Switches 3-5
3.2.1 Memory Switch setting for
Epson(ESC/POS) mode 3-5
3.2.2 Memory Switch setting for
Star(SP500) mode 3-6
3.3 Changing the DIP Switch setting 3-21
CHAPTER 3
Note
Note
Note
Note

3-33-2 3-3
Transmission
2400 baud
4800 baud
9600 baud
19200 baud
ON
OFF
OFF
ON
ON
ON
OFF
OFF
2-7 2-8
DIP Switch 2 (Parallel interface model)
Switch
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
Auto line feed Enable Disable OFF
Function ON OFF Default
Undefined
3.1.2 DIP Switch setting for Citizen(iDP 3550) mode
DIP Switch 1
Switch
1-1
1-2
1-3
1-5
1-6
1-7
1-8
Auto cutter
International characters(*2)
CR mode
Enable
CBM2 mode
(iDP3530 system)
CR
Disable
CBM1 mode
(iDP3540 system)
CR+LF
OFF
OFF
OFF
OFF
ON
OFF
Function ON OFF Default
Refer to the following table
Refer to the following table
Emulation selection(*1)
Although the factory settings are best for almost all users, if you have special requirements,
you can change the DIP Switch.
3.1 Setting the DIP Switches
Your printer has two sets of DIP Switches. The functions of the switches are shown in the following table.
3.1.1 DIP Switch setting for Epson (ESC/POS) mode
DIP Switch 1
(*1) Emulation Selection (DSW 1-1 and 1-2)
Switch
1-1
1-2
1-3
1-5
1-6
1-7
1-8
Auto cutter
Serial interface selection
Print NV bit image #1 after cutting
Near end switch
Print column
Enable
Memory switch
Enable
Enable
42/35
Disable
Receive buffer full or
Offline
DIP Switch
Disable
Disable
40/33
OFF
OFF
OFF
OFF
OFF
Function ON OFF Default
Refer to the following tableEmulation selection(*1)
DIP Switch 2 (RS232C serial interface model)
Switch
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
Data receive error
Hand shaking
Word length
Parity check
Parity selection
Baud rate selection(*2)
Ignore
XON/XOFF
7 bits
Enable
EVEN
Print "?"
DTR/DSR
8 bits
Disable
ODD
OFF
OFF
OFF
OFF
OFF
OFF
Function ON OFF Default
Emulation
EPSON
STAR
CITIZEN
EPSON-KP
OFF
OFF
ON
ON
OFF
ON
OFF
ON
1-1 1-2
Refer to the following table
Reserved
1-4 BUSY condition Receive buffer full
(*2) Baud rate selection (Transmission speed)
1-4 CBM command
Switch settings
CHAPTER 3
EPSON-KP(EPSON Kitchen printer Mode) : A alarm is generated by printer after auto cutting and in paper end error.
OFF
OFF
OFF
OFF

3-53-4 3-5
3.1.3 DIP Switch setting for Star(SP500) mode
DIP Switch 1
Switch
1-1
1-2
1-3
1-4
1-5
1-6
1-7
1-8
Emulation selection(*1)
Auto cutter
Black/Red printing
Enable
Enable
Disable
Disable
OFF
OFF
Function ON OFF Default
Refer to the following table
Reserved
DIP Switch 2 (RS232C serial interface model)
Switch Function ON OFF Default
Change in DIP Switch settings are recognized only when the printer power is turned on or
when the printer is reset by using the interface. If the DIP Switch setting is changed after
the printer power is turned on, the change does not take effect until the printer is turned on
again or is reset.
(*2) International character selection
No.
Country
U.S.A.
France
Germany
U.K.
Denmark
Sweden
Italy
Windows code
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
Page 0 (PC 437 : U.S.A.)
Page 2 (PC 850 : Multilingual)
Page 2 (PC 850 : Multilingual)
Windows code
DSW1-5 DSW1-6 DSW1-7 Code page
DIP Switch 2 (RS232C serial interface model)
Switch
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
Word length
Parity check
Parity selection
Handshaking
Baud rate selection(*3)
Near end Switch
Mechanism type
8 bits
Disable
ODD
DTR/DSR
Enable
Graphic
7 bits
Enable
EVEN
XON/XOFF
Disable
Character
ON
ON
ON
ON
OFF
OFF
Function ON OFF Default
Refer to the following table
Switch settings
CHAPTER 3
Transmission
2400 baud
4800 baud
9600 baud
19200 baud
ON
OFF
OFF
ON
ON
ON
OFF
OFF
2-5 2-6
(*1) Emulation Selection (DSW 1-1 and 1-2)
Emulation
EPSON
STAR
CITIZEN
EPSON-KP
OFF
OFF
ON
ON
OFF
ON
OFF
ON
1-1 1-2
(*3) Baud rate selection (Transmission speed)
EPSON-KP(EPSON Kitchen printer Mode) : A alarm is generated by printer after auto cutting and in paper end error. Refer to the following table
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
XON/XOFF
7 bits
Enable
EVEN
DTR/DSR
8 bits
Disable
ODD
OFF
OFF
OFF
OFF
OFF
OFF
Reserved
Reserved
Hand shaking
Word length
Parity check
Parity selection
Baud rate selection(*2)
Transmission
2400 baud
4800 baud
9600 baud
19200 baud
ON
OFF
OFF
ON
ON
ON
OFF
OFF
2-7 2-8
(*2) Baud rate selection (Transmission speed)
Page 5 (PC 865 : Nordic)
OFF
OFF
OFF
OFF

3-73-6 3-7
Memory Switch 8
Switch
1
2
3
4
5
6
7
8
Reserved
Reserved
Reserved
Reserved
Selection of the cover open status
Reserved
Receive buffer full release
Printer (Cover open during operation)
-
-
-
-
Cover open
-
Remaining 522 bytes
Errors that can possibly recover
Fixed to Off
Paper end
Fixed to Off
Remaining 640 bytes
Errors that automatically recover
Function ON OFF
3.2 Setting the Memory Switches
3.2.1 Memory Switch setting for Epson(ESC/POS) mode
Desired code page can be selected using Memory Switch 2-4~8 by setting as
following.(Setting value : Hexadecimal)
This printer has "Memory Switch" set which is software switches. Memory Switch set has "MSW2",
"MSW8", "Customize value", "Serial communication condition".
"Memory Switch setting utility" can change the Memory Switch set to ON or OFF as shown in the table
below (default: all OFF) :
Settings of the Memory Switch are stored in the NV memory; therefore, even if the printer is turned off,
the settings are maintained.
When you replace a SRP-270 with a SRP-275, you should adjust the MSW8-5 to OFF.
The Memory Switch is available to be changed by three methods :
- Memory Switch setting utility.
- Memory Switch setup mode (there are limitations on what can be changed)
- Control from ESC/POS command.
- Some Memory Switch settings can be changed by the "Memory Switch setting mode".
See “Procedure of Memory Switch setting”.
Memory Switch 2
Switch
1
2
3
4~8
Reserved
Reserved
Reserved for Chinese selection
Code page selection(*1)
-
-
-
Fixed to Off
"
"
Function ON OFF
Switch settings
CHAPTER 3
MSW2-8 MSW2-7 MSW2-6 MSW2-5 MSW2-4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Page 0 (PC437 : U.S.A.)
Page 1 (Katakana)
Page 2 (PC850 : Multilingual)
Page 3 (PC860 : Portuguese)
Page 4 (PC863 : Canadian-French)
Page 5 (PC865 : Nordic)
Page 16 (WPC1252 : Latin1)
Page 17 (PC866 : Russian)
Page 18 (PC852 : Latin2)
Page 19 (PC858 : Euro)
Page 21 (PC862 : Israel)
Page 22 (PC864 : Arabic)
Page 23 ( Thai character code 42)
Page 24 (WPC1253 : Greek)
Page 25 (WPC1254 : Turkish)
Page 26 (WPC1257 : Baltic)
Page 27 (Farsi)
Page 28 (WPC1251 : Russian) (*2)
Page 29 (PC737 : Greek) (*2)
Page 30 (PC775 : Baltic) (*2)
Character Table
(*1) Memory Switch 2-4~8
(*2) Only Font B available.
Refer to the following table

3-93-8 3-9
In the Memory Switch setup, the POWER LED may be flashing.
Starting the Memory Switch setup mode
Use the following procedure to start the Memory Switch setup mode.
1) Open the rear cover.
2) Turn the power on while pressing the FEED button.
3) Press the FEED button twice after POWER, ERROR, and PAPER OUT LEDs are lit.
4) Close rear the cover. The printer prints the enabled settings of the memory switches and instructions.
5) Follow the instructions to process the switch setup.
These setting can be set by "Memory Switch setup mode."
All new settings will be lost if the power supply is turned off in the memory switch setup
mode. Be sure to follow the proper procedure, and turn the power off at the correct time.
There are two methods, DIP Switch and Memory Switch, to adjust the serial
communication conditions. DIP Switch1-5 selects which is effective, DIP Switch or
Memory Switch. To enable the "Serial communication" setting, you have to adjust the
"Serial interface selection" function of DIP Switch 1-5 to "Memory Switch".
These settings can be set by "Memory Switch setup mode".
Customize value
Function Selectable value
Paper roll width 57.5 mm / 69.5 mm / 76 mm (default value)
Serial communication
Function
Handshake
Data length
2400 bps
9600 bps
None
Even
DSR/DTR
7 bits
4800 bps
19200 bps
Odd
-
XON/XOFF
8 bits
Selectable value
Memory Switch setup mode
The following items are specified in the Memory Switch setup mode:
Basic Serial communication condition (Serial communication)
- Transmission speed
- Parity
- Handshaking
- Data length
Receive buffer full release condition (MSW 8-7)
Paper roll width (Customize value)
Cover open status (MSW 8-5)
Baud rate
Parity
Switch settings
CHAPTER 3
MSW 8-5 :
When Off is selected, a bit of the "paper end sensor" in each status that is transmitted
from the printer is changed every time the rear cover is open or closed. When On is
selected, a bit of the "rear cover open / close" in each status that is transmitted from the
printer is changed every time the rear cover is open or closed. When you replace a SRP-
270 with a SRP-275, you should adjust the MSW 8-5 to Off.
MSW 8-8 :
When Off is selected, a bit of the "automatic recoverable error" in each status that is
transmitted from the printer is changed every time the rear cover is open. When On is
selected, a bit of the "mechanical error" in each status that is transmitted from the printer is
changed every time the rear cover is open.
The setting of MSW 8-5 and 8-8 can be set by "Memory Switch setup mode".

3-113-10 3-11
3.2.2 Memory Switch setting for Star (SP500) mode
Settings
(Ex) Memory Switch 1-8 = 0; Memory Switch 2-7 = 1: Memory Switch 2-A =1 for a test print:
PRINT #1, CHR$(&H1B);CHR$(&H1D);CHR$(&H23);CHR$(&H2D);CHR$(&H31); ’ <ESC><GS> # - 1
PRINT #1, CHR$(&H30);CHR$(&H31);CHR$(&H30);CHR$(&H30);CHR$(&H0A);CHR$(0); ’ 0100 <LF><NUL>
PRINT #1, CHR$(&H1B);CHR$(&H1D);CHR$(&H23);CHR$(&H2B);CHR$(&H32); ’ <ESC><GS> # + 2
PRINT #1, CHR$(&H30);CHR$(&H34);CHR$(&H38);CHR$(&H30);CHR$(&H0A);CHR$(0); ’ 0480 <LF><NUL>
PRINT #1, CHR$(&H1B);CHR$(&H1D);CHR$(&H23);CHR$(&H54);CHR$(&H30); ’ <ESC><GS> # T 0
PRINT #1, CHR$(&H30);CHR$(&H30);CHR$(&H30);CHR$(&H30);CHR$(&H0A);CHR$(&H0); ’ 0000 <LF><NUL>
Memory Switches are from MSW 0 to 8 MSW 8. They are stored in non-volatile memory
(flash memory). To change the settings, send the following commands from the host.
[Name] Set Memory Switch
[Code] ASCII ESC GS # m N n1 n2 n3 n4 LF NUL
Hexadecimal 1B 1D 23 m N n1 n2 n3 n4 0A 00
Decimal 27 29 35 m N n1 n2 n3 n4 10 0
[Defined Region] m = "W", "T", ",", "+","-,", "@"
"0" ≤N, n1, n2, n3, n4 ≤"9",
"A" ≤N, n1, n2, n3, n4 ≤"F"
[Function] Sends command to write after defining memory switch using the definition
command specified by the following classes to set the memory switch.
The printer is automatically reset after writing the setting defined by that command
to the non-volatile memory.
Do not turn off the power to the printer while sending commands to the non
volatile memory. Doing so will destroy the memory switch setting. It is also possible
for all memory switch settings to become offset to their initial, default settings.
Consider the life of the non-volatile memory and avoid over-use of this command.
Function mClass N
Data definition (data Specification)
Data definition (set specified bit)
Data definition (clear specified bit)
Data definition (clear all data)
Definition data write and reset
Definition data write and reset and
test print
","
"+"
"-"
"@"
"W"
Definition
Definition
Definition
Definition
Write
N
N
N
Fixed at "0"
Fixed at "0"
n1 n2 n3 n4
n1 n2 n3 n4
n1 n2 n3 n4
Fixed at "0000"
Fixed at "0000"
n1 n2 n3 n4
Procedure of Memory Switch setting
Write "T" Fixed at "0" Fixed at "0000"
Switch settings
CHAPTER 3

3-133-12
Default Settings
The default settings for Memory Switch 0 to Memory Switch 8 are shown below.
Settings vary for single byte character countries (standard specifications (SBCS)) and for double-byte
character countries (Chinese character specifications (DBCS)).
"0000"
"0000"
"0000"
"0000"
"0000"
"0000"
"0000"
"0000"
"0000"
Standard specifications (SBCS)
Memory Switch Number
MSW0
MSW1
MSW2
MSW3
MSW4
MSW5
MSW6
MSW7
MSW8
Ex-factory Settings (n1, n2, n3, n4)
Chinese character specifications (DBCS) (For China)
Memory Switch Number
MSW0
MSW1
MSW2
MSW3
MSW4
MSW5
MSW6
MSW7
MSW8
Ex-factory Settings (n1, n2, n3, n4)
"0010"
"0000"
"0000"
"0000"
"0000"
"0000"
"0000"
"0000"
"0000"
Function
Memory Switch 0
Bit Function 0 1
F~C
B~A
9~5
3~2
1~0
Reserved
Red and black
(inverted black and white)
Commands(*3)
Reserved
<FF> Command Function selection
Reserved
SBCS
(Single Byte Countries)
DBCS
(Double Byte Countries)
4 Country specifications (*1)
(*1) Country Specifications
Country MSW0-4 = 0 MSW0-4 = 1
Overseas Standard Specifications Chinese Characters
(*2) <FF> Command Function Selection
Country <FF> Command Function <FF> Command Function
0
1
Country
0
0
Executes a form feed.
After paper fed to cutting position
Executes partial cut.
Executes a form feed.
After paper fed to cutting position
Executes partial cut.
Executes a form feed.
Paper fed to the tear-bar
position.
Executes a form feed.
Paper fed to the tear-bar
position.
11
01
Auto cutter model Tear Bar Model
Switch settings
CHAPTER 3
Refer to the following table
Refer to the following table

3-153-14 3-15
Memory Switch 1
Bit Function 0 1
F
E~5
4
3~0
Reserved
Zero style
International Characters(*1)
Normal Slash zero
(*1) International Characters Default Value Settings.
MSW1-3 MSW1-2 MSW1-1 MSW1-0 International Characters
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
U.S.A.
France
Germany
U.K.
Denmark1
Sweden
Italy
Spain 1
Japan
Norway
Denmark2
This setting functions to specify adornments when the subsequent red (white/black inversion) print
command is set. It is a substitute function for the conventional red/black (white/black inversion)
printing.
<ESC> "4": Red (white/black inversion) printing
<ESC> "5": Red (white/black inversion) printing cancelled.
When using <ESC> 5 to cancel adornments, it returns to the previously set adornments.
(Adornments such as underline, upper line, double-tall expanded and enhancing are cancelled if
there is no command to set them (for example the <ESC> "-" 1 specification for underlines).
This setting is enabled only for ANK characters and block characters. It is disabled for IBM block
characters and Chinese characters composed of 12 dot vertical characters (IBM block characters
and Chinese characters do not have adornment with this command).
Precautions for selecting Option 1.
1)Prints white/black inverted characters using 79 fonts regardless of the current font size setting.
2)Inserts a one dot string of black printing to the head of the white/black inverted characters.
3)Printing data created on a conventional red/black printer, using 1 and 2 above, there are cases
in which the printing position will shift to the right and a line of printable characters reduced.
(For example, to write 42 digits of red print data using conventional a 79 font, there is a line
feed at the 35th digit, and the remaining 7 digits are printed on the next line.)
4)Download defined characters defined with 79 fonts are printed regardless of the current
font setting (79/59).
5)MSW 3-6 must not be set to 1 (ANK character count = many).
(This will cause a while line to appear between characters.)
Precautions for selecting Option 2 and Option 3.
1)Do not apply an upper line or an underline to characters when rotating 90 or 270 degrees.
(*3) Red and Black (inverted black and white) Commands
MSW0-3 MSW0-2 <ESC> 4 / <ESC> 5 Command Functions
0
0
1
1
0
1
0
1
White/black inverted printing (1 Pass)
<Option 1> White/black inversion (79 font print) + enhancing (2 passes)
<Option 2> Upper line + Underline + enhancing (2 passes)
<Option 3> Upper line + Underline + double tall expanded + enhancing (4 passes)
Switch settings
CHAPTER 3
Refer to the following table