Samsung SRP270CPG, SRP270AP User Manual

User's Manual

SRP-270

Impact Printer
Rev. 1.00

http://www.samsungminiprinters.com

SRP-270

■ 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.

PROHIBITED

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.

PROHIBITED

You must use only the supplied adapter.

• It is dangerous to use other adapters.

ONLY SUPPLIED ADAPTER

PROHIBITED

Keep the plastic bag out of children’s reach.

• If not, a child may put the bag on his head.

PROHIBITED

Do not plug in or unplug with your hands wet.

• You can be electrocuted.

PROHIBITED

Rev. 1.00

Do not bend the cable by force or leave it under any
heavy object.

• A damaged cable can cause a fire.

PROHIBITED

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SRP-270

CAUTION

Violating following instructions can cause slight wound or damage the appliance.

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.

TO UNPLUG

PRINTER

Install the printer on the stable surface.

• If the printer falls down, it can be broken and you can hurt
yourself.

PRINTER

PROHIBITED

Keep the desiccant out of children’s reach.

• If not, they may eat it.

PROHIBITED

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 touch the blade of auto cutter.

DISASSEMBLING

PROHIBITED

PRINTER

Do not let water or other foreign objects in the
printer.

• If this happened, switch off and unplug the printer before
calling your dealer.

PROHIBITED

PRINTER

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.

TO UNPLUG

PRINTER

DEALER

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SRP-270

■ Warning - U.S.A

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 according to 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
correct the interference at his own expense.

■ Notice - Canada

This Apparatus complies with class “A” limits for radio interference as specified in the
Canadian department of communications radio interference regulations.
Get appareil est conforme aux normes class “A” d’interference radio tel que specifier par
ministre canadien des communications dans les reglements d’interference radio.

■ Caution

Some semiconductor devices are easily damaged by static electricity. You should turn the
printer “OFF”, before you connect or disconnect cables. This will help protect the printer
against static electricity. If the printer is damaged by the static electricity, you should turn
the printer OFF, and refer to your local service provider.

■ Waste Electrical and Electric Equipment (WEEE)

This marking shown on the product or its literature, indicates that is should not
be disposed with other household wastes at the end of its working life, To
prevent possible harm to the environment or human health from uncontrolled
waste disposal, please separate this from other types of wastes and recycle it
responsibly to promote the sustainable reuse of material resources. Household

users should contact either the retailer where they purchased this product, or
their local government office, for details of where and how they can take this item for
environmentally safe recycling. Business users should contact their supplier and check the
terms and conditions of the purchase contract. This product should not be mixed with other
commercial wastes for disposal.

■ Label Material

* Control Label: PC
* Other Labels: PET

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SRP-270

■ Introduction

The SRP-270 Roll Printers are designed for use with electronic instruments such as

system ECR, POS, banking equipment, computer peripheral equipment, etc.

The main features of the printer are as follows:

1. High speed printing : 4.6 lines per seconds.

2. 2 color dot-matrix printer.

3. RS-232C(SRP-270), RS-485 serial interface (SRP-270S),

Parallel interface (SRP-270P),USB interface(SRP-270U).

4. The data buffer allows the unit to receive print data even during printing.

5. Peripheral units drive circuit enables control of external devices such as cash drawer.

Please be sure to read the instruction in this manual carefully before using your new
SRP-270 series.

NOTE※

The power-outlet should be near the equipment and it should be easy accessible.

※ All specifications are subjected to change without notice.

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SRP-270

■ Table of Contents

1. Setting Up the Printer ................................................................................................... 7

1-1 Unpacking.................................................................................................................. 7

1-2 Installing the Printer ................................................................................................... 7

1-3 Functions ................................................................................................................... 8

2. Connecting the cables.................................................................................................. 9

2-1 Connecting the AC adapter to the printer .................................................................. 9

2-2 Connecting Interface Cable and Drawer Cable to the printer .................................. 10

2-2-1 Serial Interface (RS-232C) ...........................................................................11

2-2-2 Serial Interface (RS-485) ............................................................................. 12

2-2-3 Parallel Interface (IEEE1284) ...................................................................... 13

2-2-4 USB Interface .............................................................................................. 14

2-2-5 Drawer Connector ....................................................................................... 14

3. Setting the Dip Switches ............................................................................................ 15

3-1 Serial Interface ........................................................................................................ 16

3-2 Parallel / USB Interface ........................................................................................... 17

4. Ribbon Cassette Installation...................................................................................... 18

5. Roll Paper Installation ................................................................................................ 19

6. Removing Jammed Paper .......................................................................................... 23

7. Self Test....................................................................................................................... 26

8. Hexadecimal Dumping ............................................................................................... 27

9. Specification ............................................................................................................... 28

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SRP-270

1. Setting Up the Printer

1-1 Unpacking

After unpacking the unit, check that all the necessary accessories are included in the
package.

Manual

CD

1-2 Installing the Printer

1-2-1 Avoid locations in direct sunlight or subject to excessive heat.

1-2-2 Avoid using or storing the printer in places subject to excessive moisture.

1-2-3 Do not use or store the printer in a dusty or dirty area. Avoid places subject to

intense vibration or shock.

1-2-4 Choose a stable and flat place for proper use of the printer.

1-2-5 Make sure that there is enough space around the printer so that it can be used easily.

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SRP-270

1-3 Functions

O The power switch is used to turn the printer on and off.

O The FEED button is used to feed roll paper.

O The POWER light (green) is on when the printer is turned on and is off when the printer

is turned off.

O The ERROR light (red) is on when the printer is in error state.

O The Paper Out light(red) is on when the printer is in paper end.

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2. Connecting the cables

2-1 Connecting the AC adapter to the printer

SRP-270

2-1-1 Make sure that the printer is turned off.

2-1-2 CHECK the label on the AC adapter to make sure the voltage required by the

AC adapter matches that of your electrical outlet.

2-1-3 Plug the DC cord connector into the printer’s power connector.

2-1-4 Plug the AC adapter power cord into the wall outlet.

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SRP-270

2-2 Connecting Interface Cable and Drawer Cable to the printer

Connect the Host Computer(POS/ECR) to the printer using an interface cable that
matches the specifications of the printer and the Host computer(POS/ECR). Be sure to
use a drawer that matches the printer's specification.

- Turn off both the printer and the Host computer(POS/ECR).

- Plug the serial interface cable connector into the printer’s interface connector,
then tighten the screws on both sides of the connector. In case of the parallel
interface, squeeze the wire clips on the printer together until they lock in place on
both sides of the connector.

- Plug the drawer cable into the drawer kick-out connector on the back of the
printer next to the interface connector. Do not connect a telephone line to the
drawer kick-out connector; otherwise the printer and the telephone line may be
damaged.

- Turn on the Printer and Host computer(POS/ECR).

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2-2-1 Serial Interface (RS-232C)

RS-232 Ver.2ON

SRP-270

Interface Connector

Drawer kick-out
connector

Power supply
connector

※ When the Dip Switch is “ON” on the Serial Interface Board,

DTR and RTS are connected each other.

Printer Side

(25Р)

(Shield.G)

(S.GND) (S.GND) (S.GND) (S.GND)

Host Side

(25Р)

(Shield.G) (Shield.G) (Shield.G)

Printer Side

(25Р)

Host Side

(9Р)

Pin No. Signal name Direction Function

1 FG - Frame Ground
2 TxD Output Transmit Data
3 RxD Input Receive Data
4 RTS Output Ready To Send
5 CTS Input Clear To Send
6 DSR Input Data Set Ready
7 SG - Signal Ground

20 DTR Output Data Terminal Ready

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2-2-2 Serial Interface (RS-485)

RS-232 Ver.2ON

SRP-270

Printer Side

Interface Connector

Drawer kick-out
connector

※ When the Dip Switch is “ON” on the Serial Interface Board,

DTR and RTS are connected each other.

Power supply
connector

Host Side

Pin No. Signal Name Direction Function

1 FGND - Frame Ground
2 SD2 Output
3 SD1 Output
4 RD2 Input
5 RD1 Input

Send Data

Receive Data

7 SGND - Signal Ground
8

9
10
11

DR2
DR1
CS2
CS1

Output Same as DTR(RS-232)

Input Same as DSR(RS-232)

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2-2-3 Parallel Interface (IEEE1284)

PARALLEL Ver.2

SRP-270

Interface Connector

Pin No. Source

1 Host nStrobe HostClk HostClk
2 Host / Printer Data 0 (LSB) - Data 0 (LSB)
3 Host / Printer Data 1 - Data 1
4 Host / Printer Data 2 - Data 2
5 Host / Printer Data 3 - Data 3
6 Host / Printer Data 4 - Data 4
7 Host / Printer Data 5 - Data 5
8 Host / Printer Data 6 - Data 6

9 Host / Printer Data 7 (MSB) - Data 7 (MSB)
10 Printer nAck PtrClk PtrClk
11 Printer Busy PtrBusy /Data3,7 PtrBusy
12 Printer Perror AckDataReq/Data2,6 AckDataReq
13 Printer Select Xflag/Data1,5 Xflag
14 Host nAutoFd HostBusy HostBusy
15 - NC NC NC
16 - GND GND GND
17 - FG FG FG
18 Printer Logic-H Logic-H Logic-H

19~30 - GND GND GND

31 Host nInit nInit nInit
32 Printer nFault nDataAvail/Data0,4 nDataAvail
33 - GND ND ND
34 Printer DK_Status ND ND
35 Printer +5V ND ND
36 Host nSelectIn 1284-Active 1284-Active

Compatibility

Mode

Drawer kick-out
connector

Nibble Mode Byte Mode

Power supply
connector

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2-2-4 USB Interface

SRP-270

Ver.2

USB

USB Connector

Drawer kick-out
connector

Power supply
connector

Pin No. Signal Name Assignment (Color) Function

Shell Shield Drain Wire Frame Ground

1 VBUS Red Host Power
2 D- White Data Line(D-)
3 D+ Green Data Line(D+)
4 GND Black Signal Ground

2-2-5 Drawer Connector

Pin No. Signal name Direction

1 Frame ground ­2 Drawer kick-out drive signal 1 Output
3 Drawer open/close signal Input
4 +24V ­5 Drawer kick-out drive signal 2 Output
6 Signal ground -

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SRP-270

3. Setting the Dip Switches

The DIP switches are located on the bottom of the printer. The DIP switches are used to
set the printer to perform various functions. Follow these steps when changing DIP switch
settings.

- Turn the printer power switch off.

- Turn the printer over and remove the dip switch cover.

- Move the DIP switches using tweezers or another narrow-ended tool. Switches
are on when up and off when down in the figure below.

- The new setting takes effect when you turn on the printer.

※ NOTE

Always change DIP switch settings when the printer is turned off. Changes made with the

power on have no effect until you turn the printer off and then on again.

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3-1 Serial Interface

SW FUNCTION ON OFF DEFAULT

1 OFF
2
3 Auto-Cutter Enable Disable OFF
4 FONT SPACE 2 3 OFF
5 ­6 ­7
8 Buffer size 40Bytes 4KBytes OFF

SW – 1 SW – 2 MODE

OFF OFF EPSON
OFF ON Citizen

ON OFF Star

SW FUNCTION ON OFF DEFAULT

1 Auto Line Feed

2 Hexadecimal dump YES NO OFF
3 Hand Shaking XON/OFF DTR/DSR OFF
4 Word length 7 bits 8 bits OFF
5 Parity check Enable Disable OFF
6 Parity selection EVEN ODD OFF
7 OFF
8

Transmission speed SW – 7 SW – 8

19200 BAUD ON ON

2400 baud OFF ON
4800 baud ON OFF
9600 baud OFF OFF

NO※ TE

When the word length is 7 bits, you can not parity check OFF status.

Emulation Selection

Function for

Service Engineer

DIP switch Setting 1 Function

Emulation Selection

Baud Rate selection

DIP switch Setting 2 Function

Baud Rate selection

Refer to the following

table

OFF

Always

Enabled

Refer to the following

table

Always

Disabled

SRP-270

OFF

OFF

OFF

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3-2 Parallel / USB Interface

SW FUNCTION ON OFF DEFAULT

1 OFF
2
3 Auto-Cutter Enable Disable OFF
4 FONT SPACE 2 3 OFF
5 ­6 ­7
8 Buffer size 40Bytes 4KBytes OFF

SW – 1 SW – 2 MODE

OFF OFF EPSON
OFF ON Citizen

ON OFF Star

SW FUNCTION ON OFF DEFAULT

1 Auto Line Feed Always

2 Hex Dump YES NO OFF
3 Reserved - - OFF
4 Reserved - - OFF
5 Reserved - - OFF
6 Reserved - - OFF
7 Reserved - - OFF
8 Reserved - - OFF

Emulation Selection

Function for

Service Engineer

Refer to the following

OFF

DIP switch Setting 1 Function

Emulation Selection

Enabled

DIP switch Setting 2 Function

table

Always

Disabled

SRP-270

OFF

OFF

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SRP-270

4. Ribbon Cassette Installation

4-1 Before inserting the ribbon cassette, turn the knob clockwise to prevent

twisting the ribbon.

4-2 Insert the ribbon cassette as shown below and pay particular attention to the

placement of the ribbon behind the Print Head.

4-3 During inserting the ribbon cassette, turn the knob clockwise again to

make sure the ribbon moves freely in the cassette.

※ NOTE

Malfunctions and other problems may arise if other than specified ribbon cassettes are
used in the printer. The Warranty may be voided if other than specified ribbon cassettes
are used. Contact your dealer or place of purchase for more information about proper
ribbon cassettes.

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SRP-270

5. Roll Paper Installation

Be sure to use roll paper that matches the printer's specifications.

5-1 When possible, make sure that the printer has no un-printed data.

This data may be lost.

5-2 Open the printer cover and remove the used paper roll core if there is one.

- SRP-270 A/C : 1Ply Paper

- SRP-270 D : 2Ply Paper

5-3 To use a new roll paper, unroll the paper and tear off the end of the paper correctly.

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5-4 Put the roll paper on the paper holder and insert the paper in the printer.

- SRP-270 A/C : 1Ply Paper

- SRP-270 D : 2Ply Paper

SRP-270

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SRP-270

5-5 Insert the end of the roll paper straight into the paper inlet. The printer feeds the paper

automatically and then the printer will cut the paper automatically(SRP-270C type
series and SRP-270D type series). Refer to the attached label inside the cover.

5-6 Tear off the paper as shown, if necessary.

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SRP-270

5-7 Insert the end of the roll paper into the groove on the Roller-Pulley, warp the paper

around it two or three times and load the Roller-Pulley onto the groove of the Case.

5-8 Push the auto-cutter cover as shown below and close the printer cover.

※ NOTE

Push upper face of the auto cutter cover for completely locking of it.

5-9 When the ERROR light is on and PAPER OUT light blinks, please press the

FEED button. After that, the printer is ready for printing.

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6. Removing Jammed Paper

6-1 Open the printer cover.

6-2 Raise the auto cutter unit by lifting the knob lock.

6-3 Remove the ribbon cassette.

6-4 Loosen the manual screw.

6-5 Remove the head cover.

SRP-270

※ CAUTION

The printer head becomes very hot during printing. Allow it to be cool before you reach into
the printer.

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6-6 Move the print head carriage to the reverse direction of paper jam.

By pushing on the side of the print head as shown in the illustration.

6-7 Remove the jammed paper by rotating the paper-feed knob.

SRP-270

6-8 Replace the head cover and secure it with screw.

6-9 Replace the ribbon cassette and roll paper, then close the printer cover.

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SRP-270

※ NOTE
If you are troubled with reloading the paper, the cutter blade may not be in its normal
position. Insert a screw driver into the hole at the bottom side of auto cutter unit as shown
followed picture, and turn the gear inside the cutter unit to move the cutter blade to its
normal position.

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SRP-270

7. Self Test

The self-test checks whether the printer has any problems. If the printer does not function
properly, contact your dealer.

7-1 Make sure paper roll has been installed properly.

7-2 Turn on the power while holding down the FEED button. The self-test begins.

7-3 The self-test prints the current printer status, which provides the control ROM version

and the DIP switch setting.

7-4 After printing the current printer status, self-test printing will print the following,

and pause (The PAPER LED light blinks).

Self-test printing.

Please press the FEED button

7-5 Press the FEED button to continue printing. The printer prints a pattern using the built-

in character set.

7-6 The self-test automatically ends after printing the following.

** Character Test Completed **

7-7 The printer is ready to receive data when it completes the self-test.

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SRP-270

8. Hexadecimal Dumping

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 data in hexadecimal format along with a
guide section to help you find specific commands.

To use the hexadecimal dump function, follow these steps.

8-1 After you make sure that the printer is off.

8-2 Set DIP switch 2-2 On.

8-3 Turn on the printer, then the printer enters the hexadecimal dump mode.

8-4 Run any software program that sends data to the printer. The printer will print

all the codes it receives 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.

1B 21 00 1B 26 02 40 40 . ! . . & . @ @

02 0D 1B 44 0A 14 1E 28 . . . D . . . . (

00 01 0A 41 0D 42 0A 43 . . . A . B . C

- A period(.) is printed for each code that no ASCII equivalent.

- During the hex dump, all commands except DLE EOT and DLE ENQ are
disabled.

- Insufficient print data to fill the last line can be printed by pressing the
FEED button.

8-5 When the printing finishes, turn off the printer, and then change DIP switch 2-2 OFF.

8-6 Turn on the printer and then the hexadecimal mode is off.

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9. Specification

Printer

Ribbon

Paper

Adapter

Auto
Cutter

ETC

Printing method Serial impact dot matrix
Number of head pin 9 wires
Printing direction Bi-directional
Lines per second Approx. 4.6 LPS
Characters per line 40 (9*7), 33(9*9)
Ribbon type Cartridge type (ERC-38 Black/Red)
Color Black & Red
Ribbon life Approx.

Paper type Roll paper
Paper width W76mm ± 0.5mm (2.99" ± 0.22")
Roll diameter
Thickness 0.06mm ~ 0.085mm (0.002" ~ 0.003")
Overall dimensions 120mm * 63mm * 33mm (4.71" * 2.47" * 1.29”)
Weight 215gr (0.5 lbs)
Types AD-270 Free Voltage (50Hz ~ 60Hz)
Cutter type Guillotine type
Cutting width Max. 85 mm
Cutting thickness Max. 0.1mm
Data buffer 4k bytes
Overall dimension SRP-270A/AS/AP/AU :

Weight Weight (printer only)

Rating DC 24 V, 1.0 A
Power consumption Standby : 8 W, Operation: 24 W
EMI FCC class A, CE
Safety standards UL/CSA, TUV
Reliability Printer MCBF: 7,500,000 lines (Except print head life)

Operation Temperature 0℃ ~ 40℃ ( 32℉ ~ 104℉)
Operation humidity 30% ~ 80%
Storage temperature -5℃ ~ 50℃ ( 23℉ ~ 122℉)
Storage humidity 10% ~ 95%

SRP-270

Black : 1.5 Million characters
Red : 0.75 Million characters

Max. φ80mm (3.14")

160(W)*249(D)*130(H)mm (6.3"*9.8"*5.12")
SRP-270C/CS/CP/CU :
160(W)*249(D)*149(H)mm (6.3"*9.8"*5.87")
SRP-270D/DS/DP/DU :
160(W)*294(D)*160(H)mm (6.3"*11.57"*6.3")

Weight (with box & accessories) :

SRP-270A TYPE: 2.2 Kg (4.9 lbs) / 3.2 Kg (7.1 lbs)
SRP-270C TYPE: 2.5 Kg (5.5 lbs) / 3.5 Kg (7.7 lbs)
SRP-270D TYPE: 2.6 Kg (5.7 lbs) / 3.6 Kg (7.9 lbs)

Print head life: 300,000,000 Dots

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