SNBC BTP-M300 User manual
SERVICE MANUAL
Receipt Printer
BTP-M300
Shandong New Beiyang Information Technology Co., Ltd.
BTP-M300 Service Manual
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Declaration
Information in this document is subject to change without notice. SHANDONG NEW BEIYANG
INFORMATION TECHNOLOGY CO., LTD. (hereinafter referred to as “SNBC”) reserves the right to
improve product as new technology, components, software, and firmware become available. If users need
further data about this products or have any doubt about safety issues that might arise from using it, please
feel free to contact your dealer.
No part of this document may be reproduced or transmitted in any form or by any means, electronic or
mechanical, for any purpose without the express written permission of SNBC.
Copyright
Copyright © 2013 by SNBC.
Printed in China.
Version 1.0.
Trademark
SNBC registered trademarks:
Warning and Caution
Warning: Items shall be strictly followed to avoid damages to body and equipment.
Caution: Items with important information and prompts for operating the printer.
SNBC has passed following certifications:
ISO9001 Quality Control System Certification
ISO14001 Environmental Management System Certification
OHSAS18001 Occupational Health and Safety Management System Certification
IECQ QC080000 Hazardous Substance Process Management System Certification
Contact us
Address: No.169 huoju road, high-tech zone, Weihai, China
Hot line: 400-618-1368 800-860-1368
Fax: +86-631-5656098
PC: 264209
Website: www.newbeiyang.com.cn
BTP-M300 Service Manual
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Maintenance cautions
1) Follow the steps in this manual during maintenance;
2) Make sure that the printer and the computer are turned off before plugging/unplugging the
communication cable, changing print head or doing maintenance to the printer;
3) Be sure to protect it against electrostatic damage when maintaining print head and other electronic
components;
4) Time between turning on and turning off the printer should be no less than 20 seconds;
5) Do not print without paper and ribbon; otherwise you may damage the print bar and print head;
6) In order to ensure the stable work of each components and printer’s lifetime, you need to conduct a
regular maintenance monthly at least. The regular maintenance includes printer status check, printer
dust cleaning and part lubrication. If the printer has a larger workload, the maintenance cycle can be
appropriately shortened.
BTP-M300 Service Manual
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Contents
1 Features and Specifications ......................................................................................................................1
1.1 Features .............................................................................................................................................1
1.2 Technical Specifications .....................................................................................................................1
2 Printer Overview........................................................................................................................................2
3 Main Control Board Description.................................................................................................................4
3.1 USB interface .....................................................................................................................................4
3.1.1 Parameter ...................................................................................................................................4
3.1.2 Interface signal............................................................................................................................4
3.1.3 USB interface connection............................................................................................................4
3.2 Serial interface ...................................................................................................................................4
3.2.1 Parameter ...................................................................................................................................4
3.2.2 Interface connection and signal function .....................................................................................5
3.2.3 Serial connection.........................................................................................................................5
3.3 Parallel interface.................................................................................................................................5
3.3.1 Parameter ...................................................................................................................................5
3.3.2 Time Sequence of the Parallel Interface Module.........................................................................5
3.3.3 Interface signal............................................................................................................................6
3.3.4 Parameter ...................................................................................................................................7
3.3.5 Effect of printer’s status on parallel interface...............................................................................7
3.4 Ethernet interface ...............................................................................................................................7
3.4.1 Interface character ......................................................................................................................7
3.4.2 Protocol supported ......................................................................................................................7
3.4.3 Electrical character......................................................................................................................8
3.4.4 Frame type ..................................................................................................................................8
3.4.5 Interface signal............................................................................................................................8
4 Disassembly and Assembly.......................................................................................................................9
4.1 Maintenance Tools .............................................................................................................................9
4.2 Disassemble the printer....................................................................................................................10
4.2.1 Disassemble the printer cover...................................................................................................10
4.2.2 Disassemble the main control board cover ...............................................................................13
4.2.3 Disassemble the stationary blade cutter module.......................................................................14
4.2.4 Disassemble the non-retraction platen roller module ................................................................15
4.2.5 Disassemble the paper cabinet module ....................................................................................17
4.2.6 Disassemble the print module ...................................................................................................20
BTP-M300 Service Manual
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4.3 Assemble the printer.........................................................................................................................24
5 Printer maintenance ................................................................................................................................25
5.1 Main part replacing...........................................................................................................................25
5.1.1 Print head replacing ..................................................................................................................25
5.1.2 Cutter replacing.........................................................................................................................26
5.1.3 Main control board replacing .....................................................................................................28
5.1.4 Paper feed motor replacing .......................................................................................................29
5.1.5 CR motor replacing ...................................................................................................................29
5.1.6 Upper mark sensor replacing ....................................................................................................30
5.1.7 Lower mark sensor replacing ....................................................................................................31
5.1.8 HP sensor replacing..................................................................................................................32
5.1.9 Paper sensor replacing .............................................................................................................33
5.2 Printer adjustment ............................................................................................................................34
5.2.1 Print spacing adjustment...........................................................................................................34
5.2.2 Tighten transmission belt of carriage ........................................................................................34
6 Error Types and Processing ....................................................................................................................36
7 Troubleshooting.......................................................................................................................................37
7.1 Abnormal print effect ........................................................................................................................37
7.2 Abnormal paper detection ................................................................................................................37
7.3 Printing with noise ............................................................................................................................37
7.4 Abnormal ribbon action.....................................................................................................................38
7.5 Abnormal cutter action......................................................................................................................38
7.6 Printer doesn’t work..........................................................................................................................39
7.7 Problem during the printing process.................................................................................................39
Appendix ....................................................................................................................................................40
Appendix 1 Hexadecimal Dump Mode ...................................................................................................40
Appendix 2 Command list ......................................................................................................................41
Appendix 3 EEPROM setting table ........................................................................................................43
Appendix 4 Spare part list ......................................................................................................................44
Appendix 5 Exploded drawing of the printer...........................................................................................47
Appendix 6 Part list ................................................................................................................................50
Appendix 7 Outline drawing ...................................................................................................................54
Appendix 8 Main board layout................................................................................................................55
Appendix 9 Lubrication...........................................................................................................................56
BTP-M300 Service Manual
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1 Features and Specifications
1.1 Features
The BTP-M300 is a 9-pin serial impact dot matrix receipt printer offering high quality, high speed, and
stable performance. It is widely used in real-time printing on-site, such as POS system, kitchen and finance
applications.
The BTP-M300 can be connected with other devices via USB, parallel, serial and Ethernet interface, and it
provides drivers and applications under 2000/2003/XP/Vista.
1.2 Technical Specifications
Item Specification
Print mode 9-pin serial impact dot matrix
Print speed Max. 4.7LPS (400 dots/line)
Print width Max. 400(half dots)/200(full dots)
Paper
Paper type Continuous paper or marked paper
Single layer Paper width: 80±0.5mm,76±0.5mm,69.5±0.5mm,57.5±0.5mm;
Paper thickness: 0.06—0.085mm
Multi-layer paper
(1 original+1 copies)
Paper width: 80±0.5mm,76±0.5mm,69.5±0.5mm,57.5±0.5mm;
Paper thickness: 0.05—0.08mm, total thickness≤0.14 mm
Character
Character type Font A: 9×9 Font B: 7×9 Chinese: 16×16
Characters/line (Default)
76mm 69.5mm 57.5mm
Font A 33 CPL 30 CPL 25 CPL
Font B 40 CPL 36 CPL 30 CPL
Chinese 22 CPL 20 CPL 16 CPL
Character size (Default) Font A: 1.6×3.1mm Font B: 1.2×3.1mm Chinese: 2.7×2.9mm
Characters/inch (Default) Font A: 13.3CPI Font B: 16CPI Chinese: 8.9CPI
Data
buffer
Receiving buffer 64KB/8KB/40Byte
NV image data 128KB
NV user data 8KB
Ribbon specification ERC-38 ribbon cartridge
Ribbon lifetime
ERC-38(P) 4,000,000 characters
ERC-38(B) 3,000,000 characters
ERC-38(B/R) Black: 1,500,000 characters
Red: 750,000 characters
Communication interface USB / IEEE1284/RS-232/Ethernet /(optional)
Cash drawer connector Can control 1～2 cash drawers
Power supply AC100-240V~1.0A Max 50-60Hz
Reliability
Printing Mechanism 10,000,000 lines
Print head 150,000,000 characters
Cutter 800,000 cuts(paper thickness:0.080mm, standard testing condition)
Operating temperature and humidity 5～45℃,20～90%RH (40 )℃
Storage temperature and humidity -40～60℃,20%～93%RH (40 )℃
Dimensions 160(W)×245(D)×154(H)
Weight 3.0kg
BTP-M300 Service Manual
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2 Printer Overview
The BTP-M300 printer consists of the following parts:
Pinter mechanism part, NDLF main control board, expanded interface board.
Main control board unit block diagram is shown as below:
FLASH
Communication interface
module
Communication
interface module
Main Control Board Unit Block Diagram
BTP-M300 Service Manual
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Position of all the sockets in the main control board
BTP-M300 Service Manual
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3 Main Control Board Description
BTP-M300 can be connected to another device with USB, serial, parallel, Ethernet or WIFI interface.
3.1 USB interface
3.1.1 Parameter
¾Data transfer: Supports USB1.1 Protocol
¾Connector: USB B type standard socket
3.1.2 Interface signal
The printer built-in USB interface supports USB1.1 protocol, of which the outlet is USB A type.
Interface signal is defined as below:
3.1.3 USB interface connection
Host Printer
VBUS..................................…VBUS
DATA- ................................…DATA-
DATA+................................... DATA+
GND .......................................GND
Caution:
The vertical USB interface can not be used when set the receiving buffer to 40Bytes.
3.2 Serial interface
3.2.1 Parameter
¾Data transmission: Asynchronous serial communicate
¾Handshaking: DTR/DSR or XON/XOFF
¾Voltage: MARK = -3 to -15V: Logic "1"/ OFF
SPACE = +3 to +15V: Logic "0"/ ON
¾Baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600 bps
[bps: bits per second]
¾Data bit: 7 bit or 8 bit
¾Parity bits: No
¾Stop bit: 1 bit or 2 bit
¾Connector: D-SUB 25PIN hole socket
Caution:
Handshaking, baud rate, data bit and stop bit can be set by EEPROM and feed button.
Pin Signal name Function
1 VBUS +5V
2 DATA- Data-
3 DATA+ Data+
4 GND Ground
BTP-M300 Service Manual
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3.2.2 Interface connection and signal function
Pin Signal Name Signal Direction Function
1 FG — Frame ground
2 TXD OUTPUT Data output
3 RXD INPUT Data input
4 RTS OUTPUT Request to send
6 DSR INPUT Host ready
7 SG — Signal ready
20 DTR OUTPUT Data terminal ready
3.2.3 Serial connection
Host Printer
TXD---------------RXD
RXD---------------TXD
DSR---------------DTR
CTS---------------RTS
RTS---------------CTS
DTR---------------DSR
FG -----------------FG
SG ----------------SG
3.3 Parallel interface
Parallel interface works under IEEE1284 compatible mode and byte mode.
3.3.1 Parameter
¾Data transmission: 8 bit parallel
¾Synchronized mode: Externally supplied nStrobe signals
¾Handshaking mode: Busy Signal
¾Handshaking pressure: TTL compatible
¾Connector: IEEE 1284-B(CENTRONICS) socket
3.3.2 Time Sequence of the Parallel Interface Module
Time Sequence of Parallel Interface (compatible mode)
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