Shandong New Beiyang Information Technology Co., ltd. BT-T080 Plus User manual

SERVICE MANUAL
Embedded Printer
BT-T080 Plus
Shandong New Beiyang Information Technology Co., ltd.

BT-T080 Plus Service Manual
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Revision History
Date Version Description Author
2017-6-20 V1.0 Initial version.
Li Lingang
Wang Xinping
Wang Junxian
Chen Yi

BT-T080 Plus Service Manual
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Declaration
This manual is special for embedded printer BT-T080 plus and it is not allowed to be modified without
permission. Shandong New Beiyang Information Technology Co., Ltd. (hereinafter referred to as “SNBC”)
reserves the right to improve products as new technology, components, software, and firmware available. If
users need the further data about these products, please feel free to contact SNBC or our distributors.
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 © 2017 by SNBC.
Printed in China.
Version 1.0.
Trademark
Our registered trademark:
SNBC has been approved by following certifications:
ISO9001 Quality Control System Certification
ISO14001 Environmental Management System Certification
OHSAS18001 Occupational Health and Safety Management System Certification
IECQ QC 080000 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: [phone]
PC: 264209
Website: www.snbc.cn

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Notes
1) Follow the steps in this manual hereafter during maintenance.
2) Make sure that the printer and the computer are turned off before plugging the communication cable,
changing print head or doing maintenance to the printer.
3) Take anti- static measures, when replace print head or other electronic components.
4) Time between turning on and turning off the printer is no less than 20 seconds.
5) Do not allow the printer to print when there is no paper loading, otherwise the print head and platen
roller will be damaged.
6) Set the printing darkness in a lower grade as long as the print quality is acceptable. This will help to
keep the print head durable.

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Content
1Printer characteristics .......................................................................................................................... - 1 -
1.1 Function .............................................................................................................................................- 1-
1.2 Appearance and components.............................................................................................................- 1-
1.3 Performance index .............................................................................................................................- 2-
1.3.1 Print specification...................................................................................................................... - 2 -
1.3.2 Cut mode .................................................................................................................................. - 2 -
1.3.3 Status detection ........................................................................................................................ - 2 -
1.3.4 Sensor position ......................................................................................................................... - 2 -
1.3.5 Paper specification ................................................................................................................... - 3 -
1.3.6 Lable paper specification .......................................................................................................... - 4 -
1.3.7 Print area .................................................................................................................................. - 5 -
1.3.8 Print and cut position ................................................................................................................ - 5 -
1.3.9 Power supply voltage................................................................................................................ - 5 -
1.3.10 Reliability .................................................................................................................................. - 6 -
2Whole printer and components............................................................................................................ - 7 -
2.1 Printer overview..................................................................................................................................- 7-
2.2 Main control board module connecting diagram.................................................................................- 7-
3Disassembly and assembly.................................................................................................................. - 8 -
3.1 Disassemble the printer......................................................................................................................- 8-
3.1.1 Disassemble the print unit......................................................................................................... - 8 -
3.1.2 Disassemble the print head .................................................................................................... - 13 -
3.1.3 Disassemble the paper feeding path module.......................................................................... - 14 -
3.2 Assemble the print unit .....................................................................................................................-15 -
4Replacement and maintenance of key parts..................................................................................... - 16 -
4.1 Print head maintenance and replacement........................................................................................-16 -
4.1.1 Print head maintenance .......................................................................................................... - 16 -
4.1.2 Print head replacement........................................................................................................... - 16 -

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4.1.3 Caution ................................................................................................................................... - 16 -
4.2 Platen roller maintenance and replacement .....................................................................................-16 -
4.2.1 Platen roller maintenance ....................................................................................................... - 16 -
4.2.2 Platen roller replacement ........................................................................................................ - 16 -
4.2.3 Caution ................................................................................................................................... - 17 -
4.3 Micro switch replacement.................................................................................................................-17 -
4.3.1 Micro switch replacement ....................................................................................................... - 17 -
4.3.2 Caution ................................................................................................................................... - 17 -
4.4 Sensor replacement .........................................................................................................................-17 -
4.4.1 Mark sensor replacement ....................................................................................................... - 17 -
4.4.2 Caution ................................................................................................................................... - 17 -
4.5 Cutter replacement...........................................................................................................................-17 -
4.5.1 Cutter replacement ................................................................................................................. - 17 -
4.5.2 Caution ................................................................................................................................... - 17 -
4.6 Print motor replacement ...................................................................................................................-18 -
5Printer Adjustment .............................................................................................................................. - 19 -
5.1 Paper near end sensor position adjustment .....................................................................................-19 -
5.2 Mark sensor position adjustment......................................................................................................-20 -
6Troubleshooting .................................................................................................................................. - 21 -
Appendix .................................................................................................................................................. - 23 -
Appendix 1 Product naming rule ............................................................................................................-23 -
Appendix 2 EEPROM setting table.........................................................................................................-23 -
Appendix 3 Command set ......................................................................................................................-24 -
Appendix 4 Easily damaged parts list.....................................................................................................-26 -
Appendix 5 Printer exploded view ..........................................................................................................-28 -
Appendix 6 Parts list...............................................................................................................................-31 -
Appendix 7 Overall dimension................................................................................................................-32 -

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1 Printer characteristics
1.1 Function
High speed printing
The print speed is 150mm/s;
High reliability
The lifetime of cutter is not less than 1 million times (60g recommended paper, the paper type is OJI
PD15/PD150R, room temperature 25°C);
The lifetime of printhead is not less than 100km (12.5% duty ratio, 60g recommended paper, paper
type is OJI FD210, room temperature 25°C);
MCBF 37,000,000 lines.
Single paper feeding path
This product is configured with one straight paper feeding path.
Adapt to single-type width paper
This product can adapt to paper with a width of 79.5±0.5 mm;
Semi-automatic paper feeding
This product has semi-automatic paper feeding function
Easy to maintain
The product adopts unique patented technology—platen roller slips away from the print head and it is
easy to clean the print head and clear the errors. If the cutter can’t reset, the user still can open the
platen and stationary blade at the same time without damaging the movable blade.
1.2 Appearance and components
The appearance is in the nature color of parts.
1—cutter
2—tear-off knife
3—right spanner
4—external path
5—mechanism holder
6—spanner
7—gear cover
8—grounding part
9—stepper motor
10—main control board
11—main control board protective film
Fig. 1.2-1 BT-T080 Plus embedded printer

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1.3 Performance index
1.3.1 Print specification
Model
Item
BT-T080 Plus
Print method Direct thermal line
Print direction Consistent with the paper feeding direction
Dot density 203dpi x 203dpi
Print width
Max.80mm
Max.640 dots
Print speed 150mm/s
Table 1.3.1 Print specification
Note: Dpi: printed dots per inch (1 inch ≈25.4 mm);
1.3.2 Cut mode
Full cut
Half cut
1.3.3 Status detection
No. Detection contents Sensor type
1 Mark/out of paper Photoelectric sensor
2 Print head position Micro switch
3 Print head temperature Thermistor
4 Paper near end Photoelectric sensor
5 Anti-pull Photoelectric sensor
6 Anti-jam Photoelectric sensor
Table 1.3.2
1.3.4 Sensor position
Fig.1.3.4.1 Sensor position 1

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Fig. 1.3.4.2 Sensor position 2
Caution:
When the mark sensor is at position A, the marks are in the non-thermal layer;
When the mark sensor is at position B, the marks are in the thermal layer.
1.3.5 Paper specification
1) Paper type: thermal paper
2) Paper supply: continuous paper
3) The paper width is selected according to the selected configuration model:
Model: BT-T080 Plus 79.5±0.5mm
4) Paper roll specification:
Paper roll outer diameter (Max.): ф150 mm
Paper roll inner diameter (Min.): ф12.5mm, ф25.4mm
5) Thermal layer: outward
Fig. 1.3.5 Thermal layer diagram
6) Paper thickness: 60~100 μm

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7) Recommended paper:
Paper type Manufacturer
FD210 OJI Paper CO., LTD.
PD150 OJI Paper CO., LTD.
PD150R OJI Paper CO., LTD.
Table 1.3.5 Recommended paper
Caution:
Please use the recommended paper or its equivalents. Using the paper of low quality might affect the
print quality and shorten the lifetime of print head;
Do not stick paper onto the paper roll core shaft;
If the paper is contaminated by chemical or oil, it may discolor at the polluted spot or have poor printing
effect;
Do not rub the thermal side of paper with hard objects, otherwise the printing contents may be not
clear.
When the environment temperature goes up to 70℃, paper will discolor. Thus don’t use or store paper
under high temperature, high humidity and strong light conditions, etc.;
1.3.6 Lable paper specification
Except for the requirements of standard paper, the mark paper should aslo meet the following
requirements:
1) Mark position
The mark with the paper width is more than 79mm can be selected to be at the left, middle and right
positions of the thermal / non-thermal layer, as shown in Fig.1.2.6. Make sure that the marks on both sides
are completely covered by the mark sensor (distance from the mark sensors at both sides to the center line
of paper is 38.2mm).
2) When select the mark, the following parameters are recommended:
L1 makr height: 8mm≤L1≤Paper width
L2 makr height: 4mm≤L2≤8mm
3) The mark’s reflectivity should be less than 10%, and the reflectivity of the other parts along the paper
feeding direction within the width of the mark should be more than 75%.
Fig. 1.3.6 Mark position diagram

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Caution:
Due to the jitter during paper feeding and the difference in paper parameters, the positioning of mark
may have an error of ±1 mm;
1.3.7 Print area
The path of the BT-T080 Plus embedded printing unit is suitable for paper with 80mm width, and the
specific paper width refers to the section 1.3.5 paper specification.
L1: Maximum printable width 80mm
L2: Left print margin adjustable
L3: Right print margin adjustable
L4: Top margin recommended: ≥5mm
Fig. 1.3.7 Print width diagram
1.3.8 Print and cut position
L1: 14.5mm
Fig. 1.3.8 Relationship between print and cut positions
1.3.9 Power supply voltage
1) Drive voltage: 24VDC±10%
Note: used to drive the print head and the motor.
2) Detection voltage: 3.3VDC±5%
Note: Used to detect the status of print head control, mark sensor, paper sensor, micro switch, etc.

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1.3.10Reliability
Print device
MCBF: 37,000,000 lines (paper feeding)
Print head
Lifetime: 100km (12.5% duty ratio, 60g recommended paper, paper type is OJI FD210, room
temperature 25℃)
Cutter
Lifetime: 1 million times (60g recommended paper, paper type OJI PD15/PD150R, room temperature
25℃)

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2 Whole printer and components
2.1 Printer overview
1-cutter 2-external path
3-stationary blade holder module 4-mechanism holder module
2.2 Main control board module connecting diagram
This printer adopts KSKAJV1.3 main control board, various components of the printer like sensors, buttons,
motor and cutter are connected to the main board through connectors, as shown in the diagram below:
Fig. 2.2-1 Connection diagram of main control board module

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3 Disassembly and assembly
Notes:
Do not disassemble any part of the printer and do not loosen any screw of it when it works properly.
When disassembling or assembling the spare parts, check wires and cables for any damages.
When handling the thermal print head or electronic components, take some anti-static measures to
protect them against static electricity.
During the process of disassembling or assembling, be careful not to leave parts or screws unattached
to loose inside the printer.
Be careful not to damage the surface of the print head when disassembling or assembling the spare
parts.
Maintenance tools: Cross screwdriver, big size flat screwdriver, nipper pliers, and cut pliers.
Assistant materials: Lubricant grease, alcohol, absorbent cotton ball.
3.1 Disassemble the printer
3.1.1 Disassemble the print unit
Picture Description
1.
①Remove the one Φ2 “E”-ring with nipper pliers,
and then remove the right spanner;
②Pull out the spanner module out from the side,
and then remove the stationary blade module.
Number marks explanation:
1- Right spanner
2- Φ2 “E”-ring
3- Spanner
4- Rotation shaft

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Picture Description
2.
Remove the one Φ2 “E”-ring with nipper pliers, and
then pull out the locking inforcement plate and
rotation shaft.
Number marks explanation:
1- Φ2 “E”-ring
2- Spanner
3- Rotation shaft
3 Remove the gear cover plate, and then remove the
gear 50-17 and gear 49.
Note:
Apply some lubrication grease at the position
shown in the figure during installation.
Number marks explanation:
1- Gear cover plate
2- Gear 50-17
3- Gear 49
4.
Hold the gear and the stationary blade fixing plate
with hand, push it in the direction of the red arrow
shown in the figure to remove the roller sleeve from
the slot, and then push the claws of stationary
blade fixing plate in the direction of the blue arrow
shown in the figure to disassemble the fixing plate
module.
Number marks explanation:
1- External path
2- Platen roller
3- Stationary blade fixing plate
4- Gear of platen roller

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Picture Description
5.
Remove the two ST2.6×6 screws with a cross
screwdriver, remove the external path upwards,
remove the two ST2.9×9 screws, and finally
remove the static blade.
Notes:
Boss positioning is required when installing the
external path.
Number marks explanation:
1- External channel
2- ST2.9×9 screws
3- Stationary blade
4- ST2.6×6 screws
6.
Pull out the gear of platen roller with moderate
force.
7.
①Remove the two Φ3 “E”-rings with a nipper
pliers or a cable cutter, and then remove the
two shaft sleeves from the sides;
②Remove the platen roller from the stationary
blade fixing plate.
Number marks explanation:
1- Φ3 “E”-rings
2- Shaft sleeves
3- Platen roller
4- Statiionary blade fixing plate

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Picture Description
8.
①Remove the two ST2.6×10 flat head
self-tapping screws with a cross screw
driver,and then remove the base connection
plate (only performed when the configuration
with base connection plate is selected) .
②Remove the two ST2.6×6 screws with a cross
screwdriver, and then remove the protective film
of main control board and the main control
board.
Notes:
Manually disconnect the relevant cables from
the socket of the pin board;
Refer to the “Main control board diagram” in the
left figure for cable connecting during assembly.
Number marks explanation:
1- ST2.6×6
2- Protective film of main control board
3- Main control board

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Picture Description
9.
Remove the two M2.5×5 screws with a cross
screwdriver, and then remove the cutter module.
10.
Remove the two M2×3 screws with a cross
screwdriver, and then remove the paper guide
plate.
11.
Remove the two M2×3 screws with a cross
screwdriver, and then remove the tear-off bar.

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Picture Description
12.
Remove the one M2×3 screw with a cross
screwdriver, and then remove the grounding part
and print motor.
Refer to the "Main control board diagram" for cable
connecting during assembly.
Number marks description:
1- Motor
2- Grounding part
3- M2×3 screw
3.1.2 Disassemble the print head
Picture Description
1.
Pull out all the plugs that are plugged into the main
control board, remove the print springs and the print
head grounding part, and then push the print head
out from the limit slots on both sides in the direction
of the red arrow shown in the figure, and finally take
out the print head in the direction of the blue arrow
shown in the figure.

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Picture Description
2.
Pull the locking hook to remove the micro switch.
Be careful not to drag the micro switch connection
cable with too big force, to avoid damaging the
micro switch connection cable.
3.1.3 Disassemble the paper feeding path module
Picture Description
1.
Push the hooks on both sides of the red arrow to
remove the upper path module in the direction of
the blue arrow.