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TTP 243 Plus
TSC TTP 243 Plus User Manual
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22
TTP
-
243
Plus/ 243E Plus/
342 Plus Bar Code Printer
3.9 24V/5
V Converter Circuit
Fig. 3.10
24V/5V Converter
Circuit
Figure 3.9 is the DC-
TO
-DC (DC24V to DC 5V) converter circuit, which is a step-down
system circuit structure. U24 is t
he DC-
TO
-DC converter IC, which can conv
ert
voltage by
using PW
M control mode. The out
put voltage is dependent on R3 and R4.
24
26
Table of Contents
Default Chapter
2
Table of Contents
2
1 Fundamentals about the System
4
Features of the TTP-243 Series
4
Model Naming Syntax
4
Overview
5
Front View
5
Rear View
6
Basic Specifications
7
Effective Print Area
9
Available Bar Codes
9
Various Sensors
10
2 Supply Specifications
12
Types of Paper
12
Specifications
12
Ribbon Sizes and Shapes
14
3 Electronics
15
Circuit Description
15
MCU Pin Description
17
Reset Circuit
19
Memory System
19
Sensor&Key
20
Real-Time Clock Circuit
21
Decode Circuit
22
Thermal Head Drive/ Protection and History Control Circuit
24
5V Converter Circuit
25
Stepping Motor and DC Motor Driver/ Protection Circuit
26
Communication (Serial & Parallel Port) Circuit
27
Cutter Drive Circuit
28
Cutter & Peel Translate Board
28
Mainboard Replacement
29
TTP-243 Plus/ 243E Plus/ 342 Plus Bar Code Printer
32
Cutter, DC Motor, Stepping Motor Driver IC Replacement
33
4 Mechanism
34
Cutter Installation
34
Print Head Replacement
35
DC Motor Replacement
37
Ribbon Rewind Spindle Encoder Replacement
37
Felt Fabric Replacement
39
Stepping Motor Replacement
41
Black Mark Sensor / Gap Sensor (Receiver) Replacement
42
Ribbon Sensor (Receiver) Replacement
42
Ribbon Sensor (Transmitter) / Gap Sensor (Transmitter) Replacement
45
Platen Replacement
46
5 Trouble Shooting
49
Error Messages
49
Trouble Shooting
50
Calibrate the Gap Register
51
Self-Test
51
Ram Clear
51
Diagnosis Operation Procedure
51
Testing Sensors
52
Cleaning the Print Head
54
4
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TSC TTP 243 Plus Specifications
General
Brand
TSC
Model
TTP 243 Plus
Category
Barcode Reader
Language
English
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