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TTP 246M
Service Manual
Page 47
TSC TTP 246M - Page 47
75 pages
Manual
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44
44
TTP
-246
M/
344
M
Bar Code Printer
Service Manua
l
4.
Rem
ove the 4 screw
s these are on the Right Side Fixing Plate, Right Side Fixing
Plate, and then, remove the Print Head
Adjustment Knob assembly
.
5.
Rem
ove
A.B.C.D in order
.
6.
Lo
osen M4 screw
, knob
, E
and F
Remove these
2 screws
screws
screws
46
48
Table of Contents
Main Page
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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