TDP-225 /TDP-324/ TDP-225W/ TDP-324W
SERVICE
MANUAL
DIRECT THERMAL BAR CODE PRINTER
i
TDP-225/TDP-324/TDP-225W/TDP-324W
Bar Code Printer Service Manual
TABLE OF CONTENT
1. OVERVIEW ................................................................................................................ 1
1.1 Front View ............................................................................................................... 1
1.2 Interior View ............................................................................................................ 2
1.3 Rear View ................................................................................................................. 3
2. ELECTRONICS .......................................................................................................... 4
2.1 Summary of Board Connectors ............................................................................. 4
2.2 Pin Configuration .................................................................................................... 8
3. MECHANISM ........................................................................................................... 10
3.1 Replacing Feed Button PCB (Feed Button PCB with LCD Module/ Option for
TDP-225/324 Model) .................................................................................................... 10
3.2 Replacing the Main Board and RS-232 (Ethernet interface board/ Option for
TDP-225/324 model) .................................................................................................... 12
3.3 Replacing the Platen Roller Assembly ................................................................ 15
3.4 Replacing the Media Holder Hub (For TDP-225/324 model) .............................. 16
3.5 Replacing the Print Head Assembly .................................................................... 17
3.6 Replacing the Stepping Motor ............................................................................. 18
3.7 Peel-off Module Installation (Option) .................................................................. 19
3.8 Cutter Module Installation (Option) ..................................................................... 21
3.9 Replacing the Media Holder ................................................................................. 23
3.10 Replacing the Head Open Sensor ..................................................................... 24
4. TROUBLESHOOTING ............................................................................................. 25
4.1 LED Status ............................................................................................................. 25
4.2 Print Quality .......................................................................................................... 26
4.3 LCD display (Option for TDP-225/324 model) ..................................................... 28
5. MAINTENANCE ....................................................................................................... 29
UPDATE HISTORY ...................................................................................................... 31
TDP-225 Series
Bar Code Printer Service Manual
1
1. OVERVIEW
1.1 Front View
TDP-225/324 model
TDP-225W/324W model
1. Top cover open lever
2. MicroSD card socket
3. Media view window
4. LED indicator
5. Feed button
6. Paper exit chute
7. LCD display (Option for TDP-225/324 model)
* Recommended MicroSD card specification.
SD card spec
SD card capacity
Approved SD card manufacturer
V1.0, V1.1
MicroSD 128 MB
Transcend, Panasonic
V1.0, V1.1
MicroSD 256 MB
Transcend, Panasonic
V1.0, V1.1
MicroSD 512 MB
Transcend, Panasonic
V1.0, V1.1
MicroSD 1 GB
Transcend, Panasonic
V2.0 SDHC CLASS 6
MicroSD 4 GB
Transcend
- The DOS FAT file system is supported for the SD card.
- Folders/files stored in the SD card should be in the 8.3 filename format
1
3
4
5
2 6 1
3
4
5
2
6
7
TDP-225 Series
Bar Code Printer Service Manual
2
1.2 Interior View
1. Top cover
2. Media holder
3. Media guide
4. Printhead
5. Gap sensor (receiver)
6. Gap sensor (transmitter)
7. Platen roller
8. Black mark sensor
9. Media holder lock switch
7
6
5
4
1
8
3
2 (TDP-225 model)
2 (TDP-225W
model)
9
TDP-225 Series
Bar Code Printer Service Manual
3
1.3 Rear View
TDP-225/324 model
TDP-225W/324W model
1. Power switch
2. Power jack socket
3. USB interface
4. RS-232C interface(Option for TDP-225W/324W mode)
5. Fan-fold paper entrance chute
6. Ethernet interface (Option for TDP-225/324 model)
1
4 3 2
5
6 1 3
2
TDP-225 Series
Bar Code Printer Service Manual
4
2. ELECTRONICS
2.1 Summary of Board Connectors
Main board
Connector
Description
Remark
1
USB connector
JP56
2
RS-232 interface board connector
JP50
3
Gap sensor receiver connector
JP34
6
1 2 3 4 5
13 7 8 9 10
11
12
TDP-225 Series
Bar Code Printer Service Manual
5
Pin
Description
Voltage
1
Power
3.3V
2
GAP sensor receiver AD
0~3.3V
4
Feed key and LED connector
JP28
Pin
Description
Voltage
1
Power
3.3V
2
LED green
LED light on: 1.1~1.4V
LED light off: 1.6~1.9V
3
LED red
LED light on: 1.4~1.7V
LED light off: 1.8~2.1V
4
Feed switch
0V: Push key
3.3V: Stand-by
5
GND
0V
5
Print head connector
JP55
6
Micro processor
7
Stepping motor connector
JP14
8
Black mark sensor connector
JP17
Pin
Description
Voltage
1
Power
3.3V
2
Gap sensor emitter
Emitter on : 2.1~2.3V
Emitter off: 2.6~2.8V
3
Black mark sensor
emitter
Emitter on : 2.1~2.3V
Emitter off: 2.6~2.8V
4
Black mark sensor
receiver AD
0~3.3V
9
Head open sensor connector
JP16
Pin
Description
Voltage
1
Power
0V to 1.2V to 0V, 10ms square wave
continued
2
Head open
sensor receiver
Head close: 3.3V to under 1.0V to 3.3V,
10ms square wave continued
Head open: 3.3V continued
3
GND
0V
10
LCD connector (Option)
JP1
11
Peel-off sensor connector
JP19
TDP-225 Series
Bar Code Printer Service Manual
6
Pin
Description
Voltage
1
Power
3.3V
2
Reserved
3
Peel sensor emitter
Emitter on: 2.1~2.3V
Emitter off: 2.6~2.8V
4
Peel sensor receiver AD
0~3.3V
5
GND
0V
12
Cutter connector
JP35
Pin
Description
Voltage
1
Cutter power
24V 2 GND
0V
3
Cutter direction
0V: Cutter positive cut
5V: Cutter negative cut
4
Cutter enable
0V: Cutter work
5V: Cutter stop
5
Cutter position sensor
switch
0V: Cutter stop
3.3V: Cutter work
6
GND
0V 7 Logic power
5V 8 Reserved
13
microSD socket
JP2
Standard board
Connector
Description
Remark
1
RS232 connector
JP5
2
Main board connector
JP50
1
2
TDP-225 Series
Bar Code Printer Service Manual
7
Option board
Connector
Description
Remark
1
Ethernet connector/RJ-45
JP4
2
Main board connector
JP50
2
1
TDP-225 Series
Bar Code Printer Service Manual
8
2.2 Pin Configuration
RS-232
PIN
CONFIGURATION
1
+5 V
2
TXD
3
RXD
4
CTS
5
GND
6
RTS
7
N/C
8
RTS
9
N/C
USB
PIN
CONFIGURATION
1
N/C 2 D- 3 D+
4
GND
Ethernet (Option)
PIN
CONFIGURATION
1
Tx+
2
Tx-
3
Rx+
4
N/C
5
N/C
6
Rx-
7
N/C
8
N/C
TDP-225 Series
Bar Code Printer Service Manual
9
USB host (TDP-225W/324W/Option)
PIN
CONFIGURATION
1
+5V
2
D-
3
D+
4
GND
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