CONFIDENTIAL SERVICE MANUAL Impact Receipt Printer BTP-M280 Shandong New Beiyang Information Technology Co., Ltd.
Confidential BTP-M280 Service Manual Revision Sheet Date Version No. Description Distributor 2007-05-16 V1.0 Release Mr. zheng lei Mr. zhao zhenxing Mr. Yao Xingmao Mr. Yu zhuanlong 2008-2-20 V1.01 Adjust the format of 1.2 Mr.
Confidential BTP-M280 Service Manual 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 SNBC or your local agents.
Confidential BTP-M280 Service Manual Notes 1) Use this manual to troubleshoot printer faults. 2) Do not plug or pull out the signal cable, change print head or do maintenance to the printer when the printer and the computer are powered on. 3) Please take anti-static application when you maintain print head and other electronics component. 4) After turning off the printer, you should wait for at least 20 seconds if you want to turn on the printer again.
Confidential BTP-M280 Service Manual Contents 1 FEATURES AND SPECIFICATIONS ........................................................................................................1 1.1 FEATURES ............................................................................................................................................1 1.2 TECHNICAL SPECIFICATIONS..................................................................................................................2 2 PRINTER OVERVIEW ..........
Confidential BTP-M280 Service Manual 3.5.2 Protocol supported ....................................................................................................................10 3.5.3 Electrical character....................................................................................................................10 4 DISASSEMBLY AND ASSEMBLY..........................................................................................................11 4.1 MAINTENANCE TOOLS ...........................
Confidential BTP-M280 Service Manual 7.3 PRINTING WITH NOISE .........................................................................................................................35 7.4 RIBBON ACTION ABNORMAL .................................................................................................................36 7.5 CUTTER ACTION ABNORMAL .................................................................................................................36 7.6 PRINTER DOESN’T WORK ..............
Confidential BTP-M280 Service Manual 1 Features and Specifications 1.1 Features The BTP-M280 is a 9 pin serial dot matrix receipt impact printer. Features include such as good print quality, high speed printing and stable performance. It is widely used for receipt applications such for POS, Kitchen and Finance terminal. The BTP-M280 can be connected to host computers via a Serial interface, Parallel interface, USB interface, Ethernet interface, WLAN interface.
Confidential BTP-M280 Service Manual 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 type Paper Character Data buffer Single layer Continuous paper or marked paper 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 Paper width: 80±0.5mm, 76±0.5mm, 69.5±0.5mm, 57.5±0.
Confidential BTP-M280 Service Manual 2 Printer Overview The BTP-M280 printer consisits of the following parts: Pinter mechanism part, NDLF main control board, extended interface board. 2.1 Main Control Board Unit Block Diagram Carriage motor drive chip Communication interface connector 1.8V Motor drive signal Paper feed motor drive chip 5V Print head drive signal Main control board unit block diagram is shown as below: FLASH 3.
Confidential BTP-M280 Service Manual Position of all the sockets in the main control board -4-
Confidential BTP-M280 Service Manual 3 Main Control Board Description BTP-M280 can be connected to another device with USB, serial, parallel, Ethernet or WIFI interface. The USB interface is fixed and other is optional. 3.1 USB interface 3.1.1 Parameter ¾ Data transfer：Supports USB1.1 Protocol ¾ Socket： USB A type standard socket 3.1.2 Interface signal Pin Signal Function 1 VBUS +5V 2 DATA- Data- 3 DATA+ Data+ 4 GND Ground 3.1.3 USB interface connection Host Printer VBUS............
Confidential BTP-M280 Service Manual 3.2.2 Interface connection and signal function Signal and function： Pin Signal Name Signal Direction Function 1 FG — Frame ground 2 TXD OUTPUT Data output 3 RXD INPUT Data input 4 RTS OUTPUT Ask for sending 6 DSR INPUT Host ready 7 SG — Signal ready 20 DTR OUTPUT Data terminal ready 3.2.
Confidential BTP-M280 Service Manual Signal Min. Max. tSetup 750 - tReady 0 - tStb 750 - tBusy 0 500 tHold 750 - Time Request of Parallel Interface 3.3.
Confidential BTP-M280 Service Manual 3.3.4 Parameter 3.3.5 Effect of printer’s status on parallel interface Status /nFault PE Normal status High Low Paper end Low High Rear cover open Low Low Cutter error Low Low Input voltage abnormal Low Low Print head overheated Low Low HP error Low Low Notice： When the above error occurs, user can inquire the printer’s status from the Pin of parallel. 3.4 Ethernet interface 3.4.
Confidential BTP-M280 Service Manual ¾ Support parameter configuration ¾ Support firmware update online ¾ Support printer status inquire and interface module maintenance based in HTTP mode 3.4.2 Protocol supported ¾ IP ¾ ARP ¾ ICMP ¾ TCP ¾ UDP ¾ DHCP ¾ TFTP ¾ HTTP 3.4.3 Electrical character Output signal： ¾ Available differential mode voltage is bigger than 450Mv and peak voltage is no more than 13V. ¾ Peak voltage of common mode voltage is no more than 2.5V.
Confidential BTP-M280 Service Manual 3.5.2 Protocol supported ¾ IP ¾ ARP ¾ ICMP ¾ TCP ¾ UDP ¾ DHCP ¾ TFTP ¾ HTTP 3.5.3 Electrical character Comply to 802.11b/g protocol.
Confidential BTP-M280 Service Manual 4 Disassembly and Assembly Cautions: 1) Do not disassemble, assemble or adjust the printer if it works properly. Do not loosen any screw unless necessary. 2) When disassembling and assembling, avoid damaging all wires and cables. Do not place them in a narrow space or improper position. 3) When handling the print head or electronic component, make sure to take some measures to protect it from electrostatic charge.
Confidential BTP-M280 Service Manual 4.2 Disassemble the Printer 4.2.1 Disassemble the Cover of Printer Instructions Pictures Top view of printer. 1) Unscrew the two screws (M3x7) as shown with the 2) Push the lock frame of lower cover with a moderate screw driver; force as the arrow shown in the figure and take it off. Note: Please use a moderate force to avoid damage to the lower cover when disassembling the lock frame. 1) Unscrew the two screws (2.
Confidential BTP-M280 Service Manual Unscrew the four screws (Four ST2.9x6) as shown with the screw driver and take the front cover off. Note: Please use a moderate force to avoid damage to the font cover when disassembling the front cover.
Confidential BTP-M280 Service Manual 4.2.2 Disassemble the Main Control Board Cover Instructions Pictures Unscrew two screws (M2.5x5) as shown and take the interface module off. Note: Please use a moderate force to avoid bending the interface connector pins when connecting or disconnecting the interface board. 1) Unplug all the wires in the main control board with a moderate force; 2) Unscrew the four screws (M3 x 5) with the screw driver and take the board off.
Confidential BTP-M280 Service Manual 4.2.3 Disassemble the Stationary Blade Cutter Module Instructions Pictures Offload one E-ring from one side of the stationary blade shaft with the sharp-nose pliers and pull the shaft as the arrow shown in the fugure, take the stationary blade module off. Unscrew the two screws (M3x5) as shown with the screw driver, separate the cutter holder and the stationary blade. Note: Handle the stationary blade carefully to avoid injury.
Confidential BTP-M280 Service Manual 4.2.4 Disassemble the Platen Roller Module (Without Rewinder) Instructions Pictures 1) Cut off the tie wire of the cutter wire with wire clamp pliers; 2) Offload the E-ring in the side of the back shaft and the E-ring in the middle with sharp-nose pliers, pull the back shaft as the arrow shown in the figure, take the platen roller module off (without rewinder). 1) Unscrew the two screws (ST2.9x6) as shown with the screw driver.
Confidential BTP-M280 Service Manual 1) Offload the three E-rings as shown item ① and ② in the figure with the sharp-nose pliers; 2) Pull the latch shaft as the arrow shown in the figure, separate the latch and cover spanner. 1) Offload one E-ring as shown in the figure with the sharp-nose pliers; 2) Separate the transition gear and gear 31-17. Unscrew the three screws (ST2.6x6) as shown with the screw driver and take the upper channel plate off.
Confidential BTP-M280 Service Manual Unscrew the four screws (ST2.9x6) as shown with the screw driver and take the print padding plate off. When equipped the black mark sensor, unscrew the two screws (ST2.2x4) as shown with the screw driver, separate the black mark sensor and sensor dustproof cover off. 4.2.5 Disassemble the Paper Cabinet Module Instructions Pictures 1) Cut off the tie wire of all wires with wire clamp pliers; 2) Unscrew the four screws (ST2.
Confidential BTP-M280 Service Manual 1) Offload the three E-rings as shown with the sharp-nose pliers, separate the floatable wheel shaft and floatable wheel; 2) Unscrew the two screws (ST2.6x6) with the screw driver and take the carriage spring plate off. Unscrew the two screws (ST2.6x6) with the screw driver and take the paper force spring plate off. Unscrew the two screws (ST2.9x6) with the screw driver and take the vertical paper cabinet off. 1) Unscrew the two screws (ST2.
Confidential BTP-M280 Service Manual Unscrew the three screws (ST2.9x6) with the screw driver and take the right plate of paper cabinet off. 1) Unscrew one screw (M3x6) as item ① shown in the figure with the screw driver and take damping washer off; 2) Unscrew the two screws (M3x8) as item ② shown in the figure with the screw driver, take the paper feed motor and gear 31-17 off. 1) Unscrew one screw (ST2.
Confidential BTP-M280 Service Manual 1) Take the paper guide upwards in a moderate force off as the arrows shown in the figure; 2) Take the paper near end sensor adjustment spanner off as the arrows shown in the figure. Take the paper roller platen shaft off as the arrow shown in the figure. Unscrew the three screws (ST2.9x6) as shown with the screw driver and take the right plate of paper cabinet off. Unscrew the two screws (ST1.7x10) as shown with the screw driver and take the micro switch off.
Confidential BTP-M280 Service Manual 4.2.6 Disassemble the Print Module Instructions Pictures Unscrew the four screws (ST2.9x6) as shown with the screw driver and take the print module off.
Confidential BTP-M280 Service Manual 1) Offload the two E-rings at the both sides of the direction guide shaft as shown with the sharp-nose pliers; 2) Turn the eccentric bushing in left and right direction as the arrow ① shown so as to make the eccentric bushing to superpose with the notch of the side plate; 3) Separate the left side eccentric bushing and the right side eccentric bushing as the arrow ②,③ shown; 4) Take the lead shaft off as the arrow ③ shown. Unscrew the two screws (ST2.
Confidential BTP-M280 Service Manual Unscrew the three screws (ST2.9x6) as shown with the screw driver and take the right side plate off. Unscrew the two screws (ST2.9x6) as shown with the screw driver and take gear dustproof cover off. Unscrew the two screws (ST2.9x6) as shown with the screw driver, separate the tight plate and sync dentiform belt. Offload one E-ring as shown with the sharp-nose pliers and take the tight wheel.
Confidential BTP-M280 Service Manual Offload one E-ring as shown with the sharp-nose pliers and take the gear off. Separate upwards the gear 1 and ribbon rotation wheel. Offload one E-ring as shown with the sharp-nose pliers and take the driving pulley off. Unscrew one screw (ST2.9x6) as shown with the screw driver and take the HP sensor off. Unscrew the two screws (M3x8) as shown with the screw driver and take the carriage motor off.
Confidential BTP-M280 Service Manual 5 Printer maintenance 5.1 Main part replacing 5.1.1 Print head replacing 1) Turn off the printer. 2) Open the front cover of printer and take off the ribbon, and then disassemble the E-ring on right side of ribbon support plate as shown in the figure. 3) Move the ribbon holder 4mm in shown direction ① and then lift it in direction ② and take the ribbon spring off, then take off the ribbon holder. 4) Open upper cover, then unscrew the two screws (ST2.
Confidential BTP-M280 Service Manual Notice： Please do not pull the cable when detaching the connector, so as to avoid breaking the cable. Print head is thermal part, please disassembly it after cool down. Print head is damageable part, please avoid injuring or damage when disassembling or reassembling it. Please make sure that the print head cable connects the print head firmly. Please take care of the position of cables when connecting it.
Confidential BTP-M280 Service Manual 4) Unscrew the 2 ST2.9X6 screws and disassemble the cutter fixes plate and moving blade. 5) Unscrew the two screws (M3X5) and take off the moving blade module. 6) Install a new moving blade module and reassemble by following these steps in reverse order. Notice： When disassembling the cover, please use moderate force to avoid damage the cover. Please do not pull the cable when detaching the connector, so as to avoid breaking the cable.
Confidential BTP-M280 Service Manual Notice： When disassembling the printer cover, please use moderate force to avoid damage the cover. Please do not pull the cable when detaching the connector, so as to avoid breaking the cable. Please use moderate force to pull the interface off to avoid damaging the connector. Print head is thermal part, please disassembly it after cool down. Please make sure that all the connectors connect to their sockets firmly.
Confidential BTP-M280 Service Manual Please avoid crushing the cable in reassembly. In reassembling the CR motor, please fix all screws firmly. 5.1.6 Upper mark sensor replacing 1) Turn off the power. 2) Disassemble the printer cover according to steps in 4.2.1, then detach the mark sensor connector form main control board. 3) Unscrew the 2 ST2.9X6 and take the moving blade module off. 4) Take off the E-ering, then take off gear 30 and gear 31-17.
Confidential 5.1.7 BTP-M280 Service Manual Lower mark sensor replacing 1) Turn off the power. 2) Disassemble the printer cover according to steps in 4.2.1, then detach the paper near end sensor, CR motor, paper end sensor, rear cover micro-switch and mark sensor from main control board. 3) Unscrew the 4 ST2.9X6 and take the paper holder module off. 4) Unscrew the 2 ST2.9X6 and take the float wheel module off. 5) Unscrew the 2 ST2.2X4 screws and take lower mark sensor off.
Confidential 5.1.8 BTP-M280 Service Manual HP sensor replacing 1) Turn off the power. 2) Disassemble the transmission module according to 4.2.5. 3) Unscrew the ST2.9X6 shown in the figure and take HP sensor off. 4) Install a new HP sensor and reassemble by following these steps in reverse order. Notice： In disassembling the printer cover, please use moderate force to avoid damaging the cover. Please do not pull the cable when detaching the connector, so as to avoid breaking the cable.
Confidential BTP-M280 Service Manual 5.2 Printer adjustment 5.2.1 Print distance adjustment 1) Turn off the power. 2) Disassemble the cover according to step in chap. 4.2.1 after the print head cool down. 3) Measure the print distance by gauge and compare with standard distance(0.5±0.
Confidential BTP-M280 Service Manual 6 Error Types and Processing Errors ERROR LED PAPER LED Buzzer Recovery Hold the FEED button, or HP Error send command DLE ENQ Off 2, or turn off & on the printer. Print head overheateded Voltage abnormal Turn off printer power Off and wait for normal print head temperature Turn off printer power Off and check input voltage Hold FEED buton, or send Cutter error Off command DLE ENQ 2, or turn off & on the printer.
Confidential BTP-M280 Service Manual 7 Troubleshooting If the printer works abnormally, consult this chapter below. If there are still problems that can not be solved, please contact your local dealer for assistance. 7.1 Print effect abnormal 1) Problems: Characters are not clear. Possible causes and solutions: ¾ Ribbon ink is out, please change ribbon. ¾ There might be a lot of dust on the print head, please clear it up. ¾ Needles of the printer may be damaged.
Confidential BTP-M280 Service Manual Possible causes and solutions: 3) ¾ The dentiform belt is too tighten, please adjust the position of the dentiform belt; ¾ The print gear is attrited, please replace it. Problems: The noise is abnormal in color-switching. Possible causes and solutions: ¾ The ribbon support plate is lack of lubricant, please ask technical personnel to add some. 7.4 Ribbon action abnormal 1) Problems: The ribbon is action less in printing.
Confidential BTP-M280 Service Manual Note: Please do not touch the stationary blade and the moving blade of the cutter to avoid damage when power on the printer. 7.6 Printer doesn’t work 1) Problems: The printer doesn’t work when power switch is on. Possible causes and solutions: ¾ The power supply is not connected. Please check whether both sides power cable are connected correctly or not. If not, please connect it; Check whether the Host computer and the power supply are powered.
Confidential BTP-M280 Service Manual Appendix Appendix 1 Hexadecimal Dump Mode This feature allows the printer print in hexadecimal format after got data from host. To use the hex dump mode, follow these steps: ¾ After you make sure that the printer is off, open the rear cover, then hold down the FEED button while you turn on the printer, after carriage was verified, release the FEED button.
Confidential BTP-M280 Service Manual Appendix 2 Command list Code Hex Dec Function HT 09 009 Horizontal tab LF 0A 010 Print and line feed CR 0D 013 Print and carriage return DLE EOT n 10 04 n 016 004 n Real-time status transmission DLE ENQ n 10 05 n 016 005 n Real-time request to printer DLE DC4 10 14 016 020 Generate pulse at real-time XON 11 017 Allow data back XOFF 13 019 Forbid data back ESC SP n 1B 20 027 032 n Set right-side character spacing ESC ！ n 1B 21
Confidential GS ( C GS ( GS ( GS ( BTP-M280 Service Manual 1D 28 43 029 040 067 Edit user date in NV D 1D 28 44 029 040 068 Open/close real-time command E 1D 28 45 029 040 069 User-defined command F 1D 28 46 029 040 070 Set black mark adjustment value GS V 1D 56 029 086 Select cutter mode and cut GS a n 1D 61 n 029 097 n Enable/Disable Auto Status Back(ASB) GS r n 1D 72 n 029 114 n Transmit status FS ! n 1C 21 n 028 033 n Set character mode(s) for Kanji FS & 1C 26 028 0
Confidential BTP-M280 Service Manual Appendix 3 EEPROM setting table EEPROM Address(HEX） Instruction Description 04 Print width 0：76mm，1：69.5mm，2：57.
Confidential BTP-M280 Service Manual Appendix 4 Spare part list Parts Part No.
Confidential BTP-M280 Service Manual HP Sensor 7600-905463 Platen roller 8301-904701 Roller bushing 8211-900499 HP bushing 8211-900651 Paper guide part 8104-904621 Paper feed step motor 3200-904997 Printing step motor 3200-905905 Initiative gear 8203-900487 Tensioner 8203-900488 Belt gear - 43 -
Confidential Paper feed gear Printing gear BTP-M280 Service Manual Platen roller gear 8203-900619 Transmission gear 8203-900594 Gear31-17 8203-901160 Transmission Gear（25-19） 8203-900489 Gear 3（42-17） 8203-901158 Gear 1（25-15） 8203-901159 Synchronization toothed belt 4930-901147 Cutter 7600-905432 Control board 7204-906053 Feed button and LED module 7600-905465 Keypad label 8205-904734 - 44 -
Confidential BTP-M280 Service Manual Appendix 5 Exploded drawing of the printer 1 Explored drawing of the cover module 2 Explored drawing of the main plate module - 45 -
Confidential 3 Explored drawing of stationary blade module BTP-M280 Service Manual 4 Explored drawing of roller module - 46 -
Confidential 5 Explored drawing of paper holder module BTP-M280 Service Manual 6 Explored drawing of main control board module - 47 -
Confidential BTP-M280 Service Manual Appendix 6 Part list No Part No Drawing No Name Number Remark 1. 8005- 904688 BTP-M280.01.02.16R Spanner spring 1 2. 8209- 904680 BTP-M280.01.05.06R Open button 1 8201- 904654 BTP-M280.01.05.01R Rear cover（Without rewinder） 1 Black 8201- 904664 BTP-M280.01.05.01R Rear cover（Without rewinder） 1 White 4. 4002- 901335 ST2.9×8 Pan head self-drilling screw 10 5. 4002- 900913 ST2.9×6 Pan head self-drilling screw 50 8201-904655 BTP-M280.
Confidential BTP-M280 Service Manual 36. 8203-901159 BSC-2000A.01.24R Scan gear 1 1 37. 8203-900490 BTP-M270.01.03.18.07R Ribbon drive gear 1 38. 8203-901158 BX-7R Gear 3 2 39. 8203-900487 BTP-M270.01.03.18.02R Driving wheel 1 40. 8203-900489 BTP-M270.01.03.18.05R Transmission gear 1 41. 4400-900294 Φ2 E-ring 2 42. 8299-904670 BTP-M280.01.01.15R Gear dust proof cover 1 43. 8102-904601 BTP-M280.01.01.01.01R Mechanism right plate 1 44. 8001-904643 BTP-1000PT.01.01.
Confidential 80. 3200-904997 81. 8207-900509 82. BTP-M280 Service Manual Paper feeding motor 1 BTP-R280.01.01.12R Sensor holder（Vertical） 1 8203-901160 BTP-L340.01.05.01.10-AR Gear 31-17 1 83. 8299-904683 BTP-M280.01.03.12R Dust proof cover of sensor 1 84. 7600-905464 Lower mark sensor 1 85. 8001-904650 BTP-M280.01.03.16R Press paper shaft 1 86. 4002-900282 ST2.2×4 Pan head self-drilling screw 2 87. 8102-904618 BTP-M280.01.03.02.
Confidential BTP-M280 Service Manual Appendix 7 Outline drawing - 51 -
Confidential BTP-M280 Service Manual Appendix 8 Main board layout Top side of Main control board Bottom side of Main control board - 52 -
Confidential BTP-M280 Service Manual Appendix 9 Lubrication Please lubricate the printer according to following principle： 1) Please lubricate joint point of gear and gear shaft, do not lubricate gear tooth. 2) Please do not lubricate platen roller and its bushing. 3) Please lubricate the carriage guide shaft in maintenance. Notice： Lubricate is special kind (EM50), please ask reseller or manufacture for advice.
