Senor GTP-290 User manual

1 Station Thermal Line
Receipt Printer
MODEL : GTP-290
VERSION : 1.00

GTP-290 1 Station Thermal Line Printer
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CONTENTS
1. GENERAL DESCRIPTION..............................................................................3
1.1 OVERVIEW................................................................................................... 3
1.2 FEATURES ................................................................................................... 3
1.3 ACCESSORIES.............................................................................................. 3
2. MAIN SPECIFICATIONS.................................................................................4
3. EXTERNAL APPEARANCE AND PART DESCRIPTIONS............................5
4. INSTALLATIONS.............................................................................................6
4.1 HOW TO CONNECT POWER ADAPTER ............................................................ 6
4.2 HOW TO CONNECT CASH DRAWER................................................................ 6
4.3 SETTING OF THE PRINTER COVER AND SETTING PAPER ................................. 7
5. CONTROL PANEL ..........................................................................................8
5-1. BASIC OPERATION ...................................................................................... 8
5-2. SWITCH OPERATION (COMBINED SWITCH OPERATION).................................. 9
5-3. SETTING................................................................................................... 11
6. INTERFACE SPECIFICATIONS ...................................................................12
6.1 CHANGING THE INTERFACE CARD ................................................................ 12
6.2 SERIAL INTERFACE SPECIFICATIONS ............................................................ 13
6.3 PARALLEL INTERFACE SPECIFICATIONS ........................................................ 14
7. DRAWER KICK CONNECTOR.....................................................................15
7.1 SPECIFICATIONS......................................................................................... 15
7.2 CONNECTOR’S PIN CONNECTION ................................................................ 15
7.3 DRIVE CIRCUIT........................................................................................... 15
8. COMMAND....................................................................................................16
8.1 CONTROL CODES LIST................................................................................ 16
9.1 INTERNATIONAL CHARACTER SETS .............................................................. 26
9.2 CODE PAGE:00H TO 7FH .......................................................................... 27
9.3 CODE PAGE:PC437 (USA, EUROPEAN STANDARD).................................... 28
9.4 CODE PAGE:KATAKANA (JAPANESE) ........................................................... 29
9.5 CODE PAGE:PC850 (MULTILINGUAL) ......................................................... 30
9.6 CODE PAGE:PC860 (PORTUGUESE) .......................................................... 31
9.7 CODE PAGE:PC863 (CANADIAN-FRENCH).................................................. 32
9.8 CODE PAGE:PC865 (NORDIC)................................................................... 33
9.9 CODE PAGE:PC852 (EASTERN EUROPE) ................................................... 34
9.10 CODE PAGE:PC866 (RUSSIAN) ............................................................... 35
9.11 CODE PAGE:PC857 (TURKISH)................................................................ 36

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9.12 WINDOWS CODE PAGE............................................................................. 37
10. EXTERNAL DIMENSIONS..........................................................................38

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1. GENERAL DESCRIPTION
1.1 Overview
The GTP-290 Series Line Thermal Receipt Printer is designed for use with
ECR, electronic instruments, computer peripheral equipment, kitchen
printers and so on.
1.2 Features
1). Compact desktop Line Thermal printer.
2). Easy loading designed for dropping the paper roll
3.). Interface conformity to RS-232C, centronics ,USB port depends on the
Interface card which is removeable and other option of Interface for
different application.
4). Command protocol is compatible with ESC/POS.
5). 2 drawer kick-out.
6). The resident data buffer has storage capacity of about 128K-bytes,
enable data to be received even while printing.
7). Support download bit image, directly bit image and bar-code printing.
8). The sensors include paper end, paper near end and cover sensor.
1.3 Accessories
The following parts are included in this set of printer. Please confirm.
Paper roll (1 roll)
Power adapter (1 unit)
Power core (1 unit)
User’s manual (1 booklet)
Option( one of items below will be included)
Cable for RS-232C (depend on RS-232C interface card) (1 unit)
Cable for Centronics (depend on Centronics interface card) (1 unit)
Cable for USB (depend on USB interface card) (1 unit)

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2. MAIN SPECIFICATIONS
Item Description
1 Printing method Thermal line
2 Printing speed Approx. 150~220mm / second
3 Number of columns 40 columns
4 Character structure 12x24 (alphanumeric)
5 Line pitch 1/6 inch (4.23mm)
6 Detector Paper end,Paper near end, cover
7 Paper Single-ply thermal paper roll
Paper roll 79.5 ±0.5 (W) x 83 (max) mm
8 Head MCBF 100KM
9 Cutter MCBF 500 Thousand times
10 Power supply 24VDC / 2.1A .
11 Interface RS-232C, Centronics and USB
12 Weight Approx.1.25Kg
13 External dimensions 140.7(W) x 190(D) x 133(H)mm
14 Operating temp. 0 to 40℃
15 Storage temp. -20 to 60℃
16 SRAM 128 KB
17 FLASH 512 KB

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3. EXTERNAL APPEARANCE AND PART DESCRIPTIONS
1Printer cover
2Cover open lever
3Cutter cover
4Power switch
5Control panel
6DIP switch cover
7Interface connector
8Power connector
9Cash Drawer connector

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4. INSTALLATIONS
4.1 How to Connect Power Adapter
(1) Ensure that the power switch is
OFF.
(2) Plug the power connector into the
printer’s power connector at the
arrow mark facing upward.
(3) Plug the power cord into the outlet,
and turn on the power.
(4) Connector Specifications shows as
below:
4.2 How to Connect Cash Drawer
(1) Ensure that the power switch is OFF.
(2) Plug the cash drawer connector into the
Drawer kick out connector at the arrow
mark facing upward.
(3) Plug the connector into the RJ11 phone
jack.
Note: Power for drawer kick out is 24vdc, if
voltage of cash drawer is different, it may
cause cannot open situation or harm the
cash drawer.
Pin Number Signal Name
1 +24VDC
2 GND
3 NC
Shell Frame GND

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4.3 Setting of the Printer Cover and Setting Paper
(1) Push the cover open lever, and open
the printer cover
(2) Remove any used paper roll’s core,
and insert the paper roll as picture
bellows shown:
Put the paper roll into paper trough and pull
out the leading edge of the paper as picture
above shown.
(3) Pull out the
leading edge of
paper , close the
printer cover
(4) Tear off the spare of paper as picture
shown and complete paper replacing :
Note :
1.paper thickness are 0.06-0.10mm
2.paper width are range from 79-80mm
3.Roll diameter max. 83mm

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5. CONTROL PANEL
5-1. Basic Operation
(1) Feed Line feed button
When this push-button switch is pressed once briefly (for
0.5 seconds or less), the paper is fed forward by one line.
When it is held down continuously, the paper is fed
forward continuously until the switch is released.
(2) Repeat Repeat button
When on page mode or line mode situation, there maybe
paper jam or paper exhaust situation , please press
repeat button, then printer will repeat the last event which
was not complete.
(3) Power lamp (green LED)
Lights indicate power well.
(4) Paper lamp (Yellow LED)
‧ Lamp indicator will remain lighting when paper near end
or paper end.
‧ Lamp indicator will keep sparkling when printer process self testing or
hexadecimal dump test.
The flash timing chart shows as below:
Printer status Blinking Pattern
Self Testing
ON
OFF
500 ms
Paper end
ON
OFF
Table 5-1. PAPER Lamp Display
(5) Error lamp (red LED)
When printer cover is not properly closed or paper jam happen on
cutter part or paper is not put properly, the error indicator lamp (red
LED) will light.

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5-2. Switch Operation (Combined Switch operation)
(1) SELF PRINT TEST
LF + POWER ON (Turn the
power on while holding the LF
button depressed, the buzzer
gives one short beep.)
Self-testing will be performed
according to the VER. NO., printer
settings and characters etc (Ref.
sheet1). When the LF button is
held again after self-printing
stopped, the printer will print out
again. To turn off this mode, it is
necessary to turn off the printer
power completely.

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(2) HEXADECIMAL DUMP MODE
Repeat + POWER ON (Turn the
power on while holding the Repeat
button depressed, the buzzer gives
one short beep.)
Each of the signals sent from the
computer to the printer will be printed
out in hexadecimal code. This
function allows you to check if a
control code that sent to the printer
by the program being used is correct
or not.
To turn off the mode, it is necessary
to turn off the printer completely.

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5-3. Setting
Please use screw driver
to unlock the DIP switch
cover at the bottom,
open it as shown on
picture right side and it
shows DIP switch
DIP1 & DIP2
Settings as below
(1). Baud rate
SW1-7 SW1-8 Baud rate
OFF OFF 9600 bps
ON OFF 19200 bps
OFF ON 38400 bps
ON ON 115200 bps
(2). Select handshaking busy condition
SW2-1 Handshaking busy condition
OFF Off line and receive buffer full
ON Receive buffer full only
(3). Select printing speed
SW2-2 Printing speed
OFF 150 mm/s
ON 220 mm/s
(4). Select print density
SW2-3 SW2-4 Printing density
OFF OFF
ON OFF
OFF ON
ON ON
Light
|
|
Dark

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6. INTERFACE SPECIFICATIONS
GTP-290 provides RS232c, IEEE 1284,
USB and other interface cards, which is
replaceable for more convenient
adjustment according to requirement.
6.1 Changing the interface card
Turn off the printer and all components
connected to it, remove the 2 screws
and remove the interface card unit.
Replace the new interface card unit
and secure it with screws driver.

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DTR
RXD
256
bytes Remainder
256 bytes
Empty Near empty Near full Full
8K bytes
Head up or Paper end error
RECEIVE
BUFFER
6.2 Serial interface specifications
6.2.1 Specifications (Conform to RS-232C)
Synchronizing system : Asynchronous system
Handshaking : DTR/DSR control
Baud rates : 9600,19200,38400,115200 (Refer chapter 5-3)
Data length : Fixed 8 bit length
Parity : None
6.2.2 Pin assignment
No. Signal Name I/O Signal Name
2 TXD Output Transmit data
3 RXD Input Receive data
6 DSR Input Data set ready
20 DTR Output Data terminal ready
7 GND - Signal ground
6.2.3 Timing Chart
13 1
25 14

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BUSY
ACK-
DATA
STROBE- 0.5 us(Min.)
5 us (Tpy.)
256
bytes
Remainder
256 bytes
Empty Near empty Near full Full
8K bytes
Buffer near empty release "BUSY"
RECEIVE
BUFFER
6.3 Parallel interface specifications
6.3.1 Specifications (Conform to Centronics)
Data transmission format : 8-bit parallel
Synchronizing system : According to the strobe pulses
Handshaking : According to the BUSY signal
Signal level : TTL level
6.3.2 Pin assignment
No. Signal Name No. Signal Name
1 STB- 19-30 TWISTED PAIR GND
2-9 DATA 1 – DATA 8 31 RESET-
10 ACK- 32 FAULT-
11 BUSY 33 GND
12 PE 34-36 NC
13-15 NC
16 GND
17 F.G.
18 NC
6.3.3 Timing Chart

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7. DRAWER KICK CONNECTOR
7.1 Specifications
(1) Data Transfer System
The pulse specified by “ESC p” is output to this connector. The host can
confirm the status of the input signal by using the “ESC u” command.
(2) Electrical Characteristics
1. Drive voltage : DC 24V
2. Drive current : 0.8A at maximum (Should be within 510 ms)
“L” = 0 to 0.5V3. Switch signal : Signal level
“H” = 3 to 5V
7.2 Connector’s Pin Connection
No. Signal Name I/O
1 NC -
2 Drawer kick-out 1 Output
3 Drawer open/close signal Input
4 +24V -
5 Drawer kick-out 2 Output
6 Signal GND -
7.3 Drive Circuit
1 6
+24V
2
4
5
+5V
6
3
Printer Side User Side
Drawer 1
Drawer 2

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8. COMMAND
8.1 Control Codes list
Command HT
Code (Hex) 09
Name Horizontal tab
Command LF
Code (Hex) 0A
Name Print and line feed
Command FF
Code (Hex) 0C
Name Print and return to standard mode in page mode
Command CR
Code (Hex) 0D
Name Print and carriage return
Command CAN
Code (Hex) 18
Name Cancel print data on page mode
Command DLE EOT n
Code (Hex) 10 04 n
Name Real-time status transmission
Command DLE ENQ n
Code (Hex) 10 05 n
Name Real-time request to printer
Command DLE DC4 n m t
Code (Hex) 10 14 n m t
Name Generate pulse at real-time

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Command ESC FF
Code (Hex) 1B 0C
Name Print data in page mode
Command ESC SP n
Code (Hex) 1B 20 n
Name Set right-side character spacing
Command ESC ! n
Code (Hex) 1B 21 n
Name Select print mode(s)
Command ESC $ nL nH
Code (Hex) 1B 24 nL nH
Name Set absolute print position
Command ESC % n
Code (Hex) 1B 25 n
Name Select/cancel user-defined character set
Command ESC &y c1 c2[x1 d1…d(y * x1)]…[xk d1…d(y * xk)]
Code (Hex) 1B 26 y c1 c2[x1 d1…d(y * x1)]…[xk d1…d(y * xk)]
Name Define user-defined characters
Command ESC * m nL nH d1…dk
Code (Hex) 1B 2A m nL nH d1…dk
Name Select bit-image mode
Command ESC – n
Code (Hex) 1B 2D n
Name Turn underline mode on/off

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Command ESC 2
Code (Hex) 1B 32
Name Select default line spacing
Command ESC 3 n
Code (Hex) 1B 33 n
Name Set line spacing
Command ESC = n
Code (Hex) 1B 3D n
Name Set peripheral device
Command ESC ? n
Code (Hex) 1B 3F n
Name Cancel user-defined characters
Command ESC @
Code (Hex) 1B 40
Name Initialize printer
Command ESC D n1…nk NUL
Code (Hex) 1B 44 n1 …nk 00
Name Set Horizontal tab positions
Command ESC E n
Code (Hex) 1B 45 n
Name Turn emphasized mode on/off
Command ESC G n
Code (Hex) 1B 47 n
Name Turn on/off double-strike mode

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Command ESC J n
Code (Hex) 1B 4A n
Name Print and feed paper
Command ESC L
Code (Hex) 1B 4C
Name Select page mode
Command ESC M n
Code (Hex) 1B 4D n
Name Select character font
Command ESC R n
Code (Hex) 1B 52 n
Name Select an international character set
Command ESC V n
Code (Hex) 1B 56 n
Name Turn 90° clockwise rotation mode on/off
Command ESC W xL xH yL yH dxL dxH dyL dyH
Code (Hex) 1B 57 xL xH yL yH dxL dxH dyL dyH
Name Set printing area in page mode
Command ESC \ nL nH
Code (Hex) 1B 5C nL nH
Name Set relative print position
Command ESC a n
Code (Hex) 1B 61 n
Name Select justification