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All specifications are subject to change without notice
Receipt Printer User’s Manual
MODEL : OK30
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1. Safety Caution 2
2. Parts Identications 4
3. Setting up the printer 5
3.1 Unpacking 5
3.2 Connecting the cables 6
3.3 Loading the roll paper 11
3.4 Dip switch setting 13
3.5 Adjustment of paper width 15
4. Control panel and other functions 17
4.1 Control panel 17
4.2 Error Indicating 17
5. Self Test 18
6. Hexadecimal Dump 19
7. Printer cleaning 20
8. Specications 21
8.1. General Specications 21
8.2. Auto Cutter Specications 23
8.3. Interface 23
8.4. Electrical Characteristics 23
8.5. Environmental Requirements 24
8.6. Reliability 24
8.7. Certication 24
9. Command List 25
Table of Contents
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For higher reliability and safety, consider the following precautionary measures.
Read and follow the instructions carefully before running of the product.
1. Safety Caution
Indication
Prohibition
Must follow
Do not disassemble
Unplug the power from
the outlet
Grounding to prevent
electric shock
Do not handle the product
with wet hands
WARNING
Failure to follow these instructions could result in fire, electric shock,
or other injuries, or property damage
(Potential risk of electric shock or fire)
(Potential risk of electric shock or fire)
(Potential risk of electric shock or fire)(Potential risk of electric shock or fire)
Do not pull or touch the power plug
with wet hands.
Do not bend the wire and do not allow
the wire to be pressed by heavy object.
If a power plug is broken or a plug is cut or
worn, do not use it.
Do not overload the power plug into
one outlet.
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WARNING
WARNING
Failure to follow these instructions could result in fire, electric shock,
or other injuries, or property damage
Failure to follow these instructions could result in fire, electric shock,
or other injuries, or property damage
(Turn off the power at installation,
transportation, wiring and inspection.)
(Potential risk unit malfunction, electric
shock or fire. When the product needs
to be repaired, please contact in place
where you ordered.inspection.)
Do not pull out the power plug to turn
off the product.
Do not disassemble, repair or modify
the product.
Dealer
(You may get hurt and it can be broken
when it falls)
(Potential risk of fire or unit malfunction)
(Potential risk of fire or unit malfunction)
(Potential risk of discoloration or
electric shock)
Do not install the product in uneven
or inclined surface.
If the product that needs to be repaired,
please contact in place where you
ordered.
Please do not give excessive shock.
Keep product away from the water
and other material.
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2. Parts Identifications
INTERFACE CONNECTOR
(RJ45 MODULAR SERIAL)
INTERFACE CONNECTOR(SERIAL)
INTERFACE CONNECTOR(USB)
PERIPHERAL DRIVE CONNECTOR
POWER CONNECTOR
PRINTER COVER
POWER SWITCH
CONTROL PANEL
COVER OPEN PUSH BUTTON
Open this cover to load or
replace a paper.
Used to turn on/off
power to the printer.
Features LED indicators
to indicate printer status
and switches to operate
the printer.
Push down this button to
open the printer cover.
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3-1. Unpacking
Your printer box should include these items. If any items are damaged or missing, please contact your
dealer for assistance.
The Printer User's Manual Roll Paper
Interface Cable(Optional) Adaptor(Optional)
3. Setting Up the Printer
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3-2. Connecting the Cables
You can connect up the cables required for printing to the printer.
They all connect to the connector panel on the back of the printer, which is shown below :
Before connecting any of the cables, make sure that both the printer and the computer are turned off.
For connection to a
host computer.
For connection to a
host computer.
For connection to a
host computer.
Connects to peripheral units
such as cash drawers, etc.
Do not connect this to
a telephone.
INTERFACE CONNECTOR
(RJ45 MODULAR SERIAL)
INTERFACE CONNECTOR(SERIAL)
INTERFACE CONNECTOR(USB)
PERIPHERAL DRIVE CONNECTOR
POWER CONNECTOR
For connection of the
AC adapter.
Never unplug the AC
adapter while the
printer is on.
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3-2-1. Interface Connector
<USB “B” Type>
<Ethernet Card> <Wi-Fi interface>
<D-SUB 25 Female Serial> <Centronics Parallel>
<9Pin Serial + RJ45 Modular Serial Card>
Default
Option
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USB Interface
PIN SIGNAL I/O DESCRIPTION
1 +5V - +5V
2 DATA- - Printer transmit data line
3 DATA+ - Printer transmit data line
4 GND - System Ground
D-SUB 25 Female Serial
PIN SIGNAL I/O DESCRIPTION
2 TxD Output Printer transmit data line RS-232C level
3 RxD Input Printer receive data line RS-232C level
4, 20 DTR Output Printer handshake to host line RS-232C level
6 DSR Input Data Send Ready
1, 7 GND - System Ground
Centronics Parallel Interface
PIN SIGNAL I/O DESCRIPTION
1 STROBE- Input Synchronize signal Data received
2~9 DATA0~7 Input/Output Data bit Transmitted 0~7
10 ACK- Output Data receiving completed.
11 BUSY Output Impossible to print of data receiving.
12 PE Output Paper empty
13 SELECT Output Printer status for ON/OFF line
14 AUTO FEED- Input Paper auto feed signal
15 GROUND - System ground
16 GROUND - System ground
17 NC 18 LOGIC-H - +3.3V
19~30 GROUND - System ground
31 INIT- Input Initialize
32 ERROR- Output Printer error
33 GROUND - System ground
34 NC 35 +3.3V - +3.3V
36 SELLECT IN- Input Printer select signal