Epson RP-300-H User Manual
RP-300-H
Receipt Printer User’s Manual
All specifications are subject to change without notice
TABLE OF CONTENTS
1. Parts Identifications 3
2. Setting up the printer 4
2.1 Unpacking 4
2.2 Connecting the cables 5
2.3 Loading the roll paper
2.4 Dip switch setting 11
3. Control panel and other functions
3.1 Control panel
3.2 Error Indicating
4. Self Test
5. Hexadecimal Dump 20
6. Specifications
6.1. General Specifications
6.2. Auto Cutter Specifications
6.3. Interface
6.4. Electrical Characteristics 23
6.5. Environmental Requirements
6.6. Reliability 24
6.7. Certification
7. Command List 25
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1. Parts Identifications
RP-300-H User’s Manual
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RP-300-H User’s Manual
2. Setting Up the Printer
2-1. 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
Adaptor(Option) Interface Cable(optional)
Screw(Option)
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RP-300-H User’s Manual
2-2. 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.
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RP-300-H User’s Manual
2-2-1. Interface Connector
<D-SUB 25 Female Serial> <Centronics Parallel>
<USB “B” Type> <Ethernet>
<USB COMBO> <Wi-fi>
- Serial interface
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
- 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
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RP-300-H User’s Manual
- 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.
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12 PE Output Paper empty
13 SELECT Output Printer’s 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 - +5V
19~30 GROUND - System Ground
31 INIT- Input Initialize
32 ERROR- Output Printer Error
33 GROUND - System Ground
34 NC 35 +5V - +5V
36 SELLECT IN- Input Printer select signal
- Ethernet Interface
PIN SIGNAL I/O
1 Data Out + Output Data +
2 Data Out - Output Data -
3 GND Ground
4 Data IN + Input Data +
5 Data IN - Input Data -
6 N.C
7 N.C
8 N.C
BUSY Output Impossible to print of data receiving
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RP-300-H User’s Manual
2-2-2. Cash Drawer Connector
The printer can operate two cash drawers with a 6 pin RJ-11 modular connector. The driver is
capable of supplying a maximum current of 1.0A for 510ms or less when not printing.
PIN SIGNAL DESCRIPTION
1 Signal GND 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 GND -
Caution : To avoid an overcurrent, the resistance of the drawer kick-out solenoid must be 24 Ω
or more.
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RP-300-H User’s Manual
2-3. Loading the Roll Paper
Notes: Be sure to use paper rolls that meet the specifications. Do not use paper rolls that
have the paper glued to the core because the printer cannot detect the paper end correctly.
(Turn off power switch)
1. Make sure that the printer is not receiving data; Otherwise, data may be lost.
2. Open the paper roll cover by pushing down the cover-open button.
3. Remove the used paper roll core if there is one inside.
4. Insert new paper roll as shown.
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