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TTP 246M
TSC TTP 246M Service Manual
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21
21
TTP
-246
M/
344
M
Bar Code Printer
Service Manua
l
3.12
Summar
y of PCB connectors
Connector
Description
Remark
JP1
CPLD JT
AG connector
For CPLD program update
JP2
Boot memory load jumper
JP3
Reserved
JP4
Reserved
JP5
Power connector
JP7
Memory card connector
JP8
LCD module connector
JP9
S
te
pping motor connector
JP10
Cutter module connector
JP1
1
TPH connector
JP12
Centronics port connector
JP13
USB connector
JP15
RS
-232 connector
JP16
Gap/black sensor connector
JP17
Ribbon end sensor
JP18
Case open sensor
JP19
Ribbon near end sensor
JP20
Peel connector
For direct
The
rmal printer
only
JP21
Head open sensor
JP22
Paper near end sensor
JP33
300 dpi
TPH protect jumper
JP34
300 dpi
TPH protect jum
per
JP
35
Reserved
JP
37
5V DC connector
Provide 5V DC, 0.3A
JP38
Reserved
23
25
Table of Contents
Default Chapter
2
Table of Contents
2
1 Foundamentals about the System
4
Printer Overview
4
Front View
4
Rear View
4
Pinter Specification
5
Available Bar Codes
7
2 Supply Specifications
8
Label Specification
8
Ribbon Specification
8
3 Circuit Description
10
PCB Function
10
MCU PIN Description
12
Reset Circuit
14
Memory Circuit
14
Decoder Circuit and Memory Map
15
Print Head Circuit
18
Motor Circuit
19
Cutter Circuit
19
Parallel Port Circuit
20
Serial Port Circuit
20
USB Circuit
21
Gap/Black Mark Sensor
21
Case Open Sensor
22
Ribbon End Sensor
22
Head Open Sensor
23
Peel-Off Sensor
23
Summary of PCB Connectors
24
TTP-246M & 344M PCB Top Side
25
TTP-246M & 344M PCB Bottom Side
26
4 Mechanism
27
Remove Covers, LCD Panel and Lower Front Panel
27
Replacing the All Harness on Main PCB
31
Replacing Power Supply Unit
32
Replacing Belt and Gears
33
Replacing Ribbon Rewind Spindle
36
TTP-246M/344M Bar Code Printer Service Manua L
36
Replacing Ribbon Supply Spindle
38
Replacing Label Supply Spindle
40
Replacing Platen
42
Replacing Stepping Motor
44
Replacing Print Head
45
Replacing Print Head Adjustment Knob
46
Replacing Gap / Black Mark Sensor
48
Replacing Ribbon Sensor
51
Replacing Print Head Lift Sensor
53
Replacing Internal Print Server Module
54
Peeler Kit Installation (Option)
57
Loading Label for Peel-Off Mode
63
Cutter Module Installation (Option)
66
5 Power on Utilities
67
Calibrate Gap/Black Mark Sensor
67
Self-Test
67
Printer Initialization
68
6 Troubleshooting
70
7 Maintenance
72
Update History
73
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TSC TTP 246M Specifications
General
Brand
TSC
Model
TTP 246M
Category
Barcode Reader
Language
English
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