TSC TTP-342ME Pro User manual

TTP-244M Pro/244ME Pro
TTP-342M Pro/342ME Pro
SERVICE
MANUAL
THERMAL TRANSFER / DIRECT THERMAL
BAR CODE PRINTER

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TTP-244M Pro/244ME Pro
TTP-342M Pro/342ME Pro
Bar Code Printer Service Manual
TABLE OF CONTENT
1.FUNDAMENTAL OF THE SYSTEM...........................................................................3
1.1. Features of TTP-244M Pro/TTP-244ME Pro/TTP-342M Pro/342ME Pro.............3
1.2 Model Naming Rules......................................................................................3
1.3 Overview.........................................................................................................4
1.4 Basic Specifications.......................................................................................7
1.4-2 Electronics/Communication Specifications ................................................8
1.5 Available Bar Codes ......................................................................................9
1.6 Various Sensors and Switches...................................................................10
2. SUPPLY SPECIFICATIONS.....................................................................................12
2.1 Types of Paper.............................................................................................. 12
2.2 Paper Specifications....................................................................................12
2.3 Ribbon Sizes and Shapes ........................................................................... 13
3. ELECTRONICS........................................................................................................15
3.1 Summary of Board Connectors ..................................................................15
3.2 Interface Pin Configuration .........................................................................18
3.3 Replacement of Main Board........................................................................20
3.4 Print Density Selection................................................................................ 22
3.5 Replacement of the LCD Display................................................................23
3.6 Replacement of the Keypad Board.............................................................24
4.MECHANISM............................................................................................................25
4.1 Cutter Installation (Option)..........................................................................25
4.2 The peel-off module sensor installation (Option)......................................28
4.3 Replacement of Printhead...........................................................................30
4.3-1 Replacement of Printhead (For ROHM)......................................................30
4.3-2 Replacement of Printhead (For KYOCERA ).............................................. 31
4.4 DC Motor Replacement................................................................................33
4.5 Replacement of Stepping Motor ................................................................. 35
4.6 Installation of Black Mark Sensor...............................................................37
4.7 Replacement of Ribbon Sensor (Receiver)................................................ 39
4.8 Replacement of Ribbon Sensor / Gap Sensor (Transmitter) ....................41
4.9 Platen Replacement.....................................................................................42
4.10 Replacement of the power supply..............................................................44

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5.TROUBLESHOOTING .............................................................................................45
5.1 Error Messages............................................................................................45
5.2 Troubleshooting ...........................................................................................47
5.3 Calibrating the Gap Register.......................................................................49
5.4 Self Test ........................................................................................................49
5.5 Clearing RAM ...............................................................................................49
5.6 Diagnosis Operation Procedure .................................................................49
5.7 Cleaning the Print Head............................................................................... 50
UPDATE HISTORY......................................................................................................51

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Bar Code Printer Service Manual
1. FUNDAMENTAL OF THE SYSTEM
1.1. Features of TTP-244M Pro/TTP-244ME Pro/TTP-342M
Pro/342ME Pro
1. The printer prints bar codes, characters, logos, etc., on various types of
labels by direct thermal or thermal transfer method.
2. The printer provides “BASIC”, a high-level programming language.
3. The printer can be connected to a personal computer or an optional LCD
keyboard to execute the BASIC program downloaded to the printer’s
memory.
4. The printer provides 5 built-in fonts.
5. The printer provides a selection of optional features, including cutter
module, and self-peeling function, etc.
6. The printer provides user-friendly label design software.
1.2Model Naming Rules
(1) Print method:
TTP –Thermal Transfer Printing
(2) Dot density of print head (DPI)
(3) Maximum print width (Inch)
(4) Maximum print speed (Inch/Sec)
(5) M –Metal case

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1.3Overview
Front View
1. Printer cover/ Release handle
2. Label dispense opening
3. Liner opening (Option function)
4. MENU button (Option for E series)
5. PAUSE/ SELECT button
6. FEED/ SET button
7. Error indicator
8. On-line indicator
9. LCD display (Option for E series)
10. Power indicator
Rear View
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.

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1. Centronics interface (Option for E series)
2. USB interface
3. Label insert opening (For use with external labels)
4. RS-232C interface connector
5. SD card socket
6. Power switch
7. Power cord socket
Note: The interface picture here is for reference only. Please refer to the
specification for the interfaces availability.
* Recommended SD card specification.
SD card spec
SD card capacity
Approved SD card manufacturer
V1.0, V1.1
128 MB
SanDisk, Transcend
V1.0, V1.1
256 MB
SanDisk, Transcend, Panasonic
V1.0, V1.1
512 MB
SanDisk, Transcend, Panasonic
V1.0, V1.1
1 GB
SanDisk, Transcend, Panasonic
V2.0 SDHC CLASS 4
4 GB
V2.0 SDHC CLASS 6
4 GB
SanDisk, Transcend, Panasonic
V1.0, V1.1
microSD 128 MB
Transcend, Panasonic
1.
2.
3.
4.
5.
6.
7

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V1.0, V1.1
microSD 256 MB
Transcend, Panasonic
V1.0, V1.1
microSD 512 MB
Panasonic
V1.0, V1.1
microSD 1 GB
Transcend, Panasonic
V2.0 SDHC CLASS 4
microSD 4 GB
Panasonic
V2.0 SDHC CLASS 6
microSD 4 GB
Transcend
V1.0, V1.1
miniSD 128 MB
Transcend, Panasonic
V1.0, V1.1
miniSD 256 MB
Transcend, Panasonic
V1.0, V1.1
miniSD 512 MB
Transcend, Panasonic
V1.0, V1.1
miniSD 1 GB
Transcend, Panasonic
V2.0 SDHC CLASS 4
miniSD 4 GB
Transcend
V2.0 SDHC CLASS 6
miniSD 4 GB
- 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
- The miniSD/microSD card to SD card slot adapter is required.

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1.4 Basic Specifications
Thermal transfer and direct thermal printing
High dot density printing (203 dots/inch, 8 dots/mm; 300 dots/inch,
12 dots/mm)
Selectable print speeds at 1.5”, 2”, 3” or 4” per second for TTP-244M
Pro/TTP-244ME Pro, and 1”, 1.5”or 2”per second for TTP-342M
Pro/TTP-342ME Pro
Maximum media width: 4.49” (114 mm)
Adjustable label edge guide
International character sets
Print area：TTP-244M Pro/TTP-244ME Pro：4.09”W x 90”L；TTP-342M
Pro/TTP-342ME Pro：4.09”W x 40”L
User selectable bar code ratios and heights
Printing on labels or ticket stock
Black mark sensor
Label stock and thermal transfer ribbon easy to load
Internal label print counter
Self test
Protocol: Xon/Xoff; DSR/DTR handshaking
Downloadable fonts from the Windows label design software

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1.4-2 Electronics/Communication Specifications
Electrical:
CPU: ATMELAT91SAM9260 32bit
Stepping Motor: 24V 7.5 Degrees 4Ω
DC Motor: DC 24V
Memory:
DRAM：8MB
Flash Memory: 4MB
Voltage: Switching Power, 100/240VAC, 50~60Hz
Regulations: KCC, S-Mark, CE, FCC, TUV, UL, CCC, C-TICK, Gost-R,
BSMI, PSB
Energy Efficiency：Level V (Switching Power Supply Only)
Communications Interface:
RS-232C (DB-9)
Band rate: 2400, 4800, 9600, 19200, 38400, 57600 or 115200 band rate
Data bit: 7 or 8 data bits
Stop bit: 1 or 2 stop bits
Parity: None, Even or Odd
Handshaking: XON/XOFF and DSR/DTR

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1.5Available Bar Codes
1D bar code
Code 39, Code 39C
Code 93
Code 128 UCC
Code 128, Subsets A, B, and C
Codabar
Interleaved 2 of 5
EAN-8, EAN-13, EAN-128
UPC-A, UPC-E
EAN and UPC with 2 or 5 digits add-on
MSI
PLESSEY
POSTNET
ITF14
Code 11
China Post
GS1 DataBar
2D bar code
PDF-417
Maxicode
Data Matrix
QR code
Aztec

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1.6 Various Sensors and Switches
1. Feed Gap Sensor
The feed gap sensor detects the label/ticket gap to locate the position. The
sensor is set to detect gaps along the center line of the label/ticket roll width
across the length of the media.
In case of Label

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2. Black Mark Sensor
The black mark sensor locates the position of the ticket by emitting infrared
rays onto the black mark at the back side of the ticket. The sensor is
positioned central to the ticket roll width on the mechanism.
In case of Ticket
3. Ribbon End Sensor
The sensor detects the end portion of the ribbon.
4. Ribbon Encoder Sensor
The encoder is located in the gear box of the DC motor and is used to
detect whether the ribbon is broken or abnormally rewound.
5. Label End Sensor
The sensor detects the end portion of the label.
6. Thermal Head Position Switch
The switch detects whether the thermal head is set in a printable status or
not.
7. Peel-Off Sensor (Option)
The sensor detects the backing paper of the label.

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2. SUPPLY SPECIFICATIONS
2.1 Types of Paper
Three types of paper are available: (1) label, (2) ticket, (3) direct thermal
paper.
Note: Our definition of ticket is “the media with black lines on its
backing paper”.
Item (1), (2), (3) can be further classified into direct thermal type or thermal
transfer type.
2.2Paper Specifications
Specifications
Label / Ticket
Items
Paper Width
Max. 114 mm
Min. 25.4 mm
Print Length (Pitch)
6 ~ 2286 mm (For TTP-244M Pro/TTP-244ME Pro)
6 ~ 1016 mm (For TTP-342M Pro/TTP-342ME Pro)
Thickness
0.06 mm~0.25 mm, Max 250 g/m2
Max. Roll Diameter
Outer roll dia. 178 mm (1” core)
Roll Up Method
Print surface wound outside as standard
Paper Core ID
25.40.3 mm
Max. Print Width
25 mm (1") ~ 104 mm (4.09")
Note:
(1) The max. paper length above is for standard 8MB memory.
(2) The printing length above is based on the assumption that there is not any
downloaded file in the printer memory.
(3) The quoted width and thickness are said of the label plus the backing paper.
(4) Likewise, the approval of a label entails that of its backing paper.
(5) In the peel off mode, the minimum pitch is 35 mm.
(6) In the cutter mode, it is recommended that the print media be wound
outside lest paper jam should result.
(7) In the cutter mode, the paper thickness must be less than or equal to 250 m.
(8) Paper shape is as shown on next page:

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2.3Ribbon Sizes and Shapes
Item
Specifications
Ribbon shape
Spool type
Ribbon width
Max. 110 mm
Min. 25.4 mm
Ribbon winding width
Max. 110 mm
Min. 25.4 mm
Leader tape
Polyester film, 3355 mm long
End tape
Polyester film (transparent), 2505 mm long
Max. ribbon OD.
67 mm
Winding method
Ink surface wound outside
Note: The Max. length of ribbon depends on its core outside diameter
and thickness.
This formula below defines the correlation between ribbon roll length and
ribbon core diameter:

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Bar Code Printer Service Manual
t4 )d(D
=L 22
 
,where
L = Ribbon length
D = Max. roll diameter
d = Ribbon core outside diameter
t = Ribbon thickness

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3. ELECTRONICS
3.1 Summary of Board Connectors
Main board
Connector
Description
1
Centronics port connector
2
USB connector
3
RS-232C connector
4
LCD panel connector
5
Multi-interface board connector/ GPIO interface board
6
Micro processor
7
RFID module connector
8
Head open sensor connector
1
12
3
2
6
4
8
7
14
11
10
9
18
13
5
17
15
16

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Pin
Description
Voltage
1
Head open detect
Head open: High
Head close: Low
2
Head open detect
Head open: High
Head close: Low
9
Gap sensor connector
Pin
Description
Voltage
1
Gap sensor receiver
Power
5V
2
Gap sensor receiver
Gap: Low
Label: High
3
Gnd
0V
4
Gap sensor emitter
power
3.3V
5
Gap sensor emitter
0~3.3V
6
GND
0V
10
Black mark sensor connector
Pin
Description
Voltage
1
Power
3.3V
2
Black mark sensor
receiver
BM: High
No BM: Low
3
GND
0V
11
Ribbon sensor connector

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Pin
Description
Voltage
1
power
3.3V
2
Ribbon sensor
receiver
With ribbon: High
No ribbon: Low
3
GND
0V
4
NC
12
Cutter/peel-off sensor connector
Pin
Description
Voltage
1
Cutter motor wire A
0~24V
2
Cutter position
sensor switch
Right position: High
Error position: Low
3
Cutter motor wire B
0~24V
4
GND
0V
5
GND
0V
6
Peel sensor
receiver
No paper: High
With paper: Low
7
Logic Power
5V
13
DC motor & Ribbon encoder sensor
Pin
Description
Voltage
1
Power
5V
2
Encoder sensor
Reflect: Low
No reflect: High
3
GND
0V
4
DC motor wire A
0~24V
5
DC motor wire B
0~24V
14
Stepping motor connector
15
SD card slot
16
Key & LED

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Pin
Description
Voltage
1
Power
3.3V
2
LED Green1
POWER
3
LED Green2
ON-LINE
4
LED Red
ERROR
5
Key 1
MENU
6
KEY 2
PAUSE
7
Key 3
FEED
8
GND
0V
17
Power supply input (24V DC) connector
18
Print head signal connector
3.2 Interface Pin Configuration
RS-232C
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

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Centronics
Pin
SPP Mode
Nibble
In/Out
Function
1
Strobe
N/A
In
A low on this line indicates that there are valid
data at the host. When this pin is de-asserted,
the +ve clock edge should be used to shift the
data into the device.
2-9
Data 0-7
N/A
In
Data Bus. Single-directional.
10
Ack
N/A
Out
A low on this line indicates that there are valid
data at the Device. When this pin is
de-asserted, the +ve clock edge should be
used to shift the data into the host.
11
Busy
N/A
Out
When in reverse direction, a high indicates
data, while a low indicates a command cycle. In
forward direction, it functions as PtrBusy.
12
Paper Out /
End
N/A
Out
When low, device acknowledges reverse
request.
13
Select
N/A
Out
Extensibility flag
14
Ground
N/A
GND
15
No Defined
N/A
N/A
16-17
Ground
N/A
GND
Ground
18
No Defined
N/A
N/A
19-30
Ground
N/A
GND
Ground
31
No Defined
N/A
N/A
32
Error / Fault
N/A
Out
A low set by the device indicates that the
reverse data is available
33-35
Ground
N/A
GND
Ground
36
No Defined
N/A
N/A