TTP-245/343 - TSC

TTP-245/343 

THERMAL TRANSFER / DIRECT THERMAL 

BAR CODE PRINTER 

SERVICE 

MANUAL

TTP-245 / TTP-343 

1. FUNDAMENTAL OF THE SYSTEM ........................................................................ 1 

1.1. Overview .................................................................................................................. 1 

1.1.1. Front View ..................................................................................................... 1 

1.1.2. Rear View ...................................................................................................... 2 

1.2. Specification ............................................................................................................. 2 

1.2.1. Printer ............................................................................................................ 2 

1.2.2. LED ............................................................................................................... 4 

1.2.3. Button ............................................................................................................ 4 

1.3. Supply Specification ................................................................................................. 7 

1.3.1. Paper .............................................................................................................. 7 

1.3.2. Ribbon ........................................................................................................... 7 

2. ELECTRONICS ........................................................................................................ 8 

2.1. Circuit Description .................................................................................................... 8 

2.2. MCU Circuit and MCU PIN Description..................................................................10 

2.2.1. MCU PIN Description: .................................................................................. 11 

2.3. Reset Circuit ............................................................................................................16 

2.4. Memory Circuit .......................................................................................................17 

2.5. Decoder Circuit ........................................................................................................18 

2.6. Memory Map ...........................................................................................................19 

2.7. Print Head Circuit ....................................................................................................21 

2.8. Stepping Motor Drive / Protection Circuit ................................................................22 

2.9. Power Circuit ...........................................................................................................24 

2.10. Parallel Interface Circuit ........................................................................................25 

2.11. Serial Interface Circuit ...........................................................................................27 

2.12. USB Circuit ...........................................................................................................28 

2.12.1. USB PIN Function ......................................................................................29 

2.13. Sensor Circuit ........................................................................................................31 

2.13.1. Gap and Black Mark Sensor ........................................................................31 

2.13.2. Head Open Micro Switch ............................................................................32 

2.13.3. Peel-off Sensor ............................................................................................33 

2.13.4. Ribbon Sensor .............................................................................................34 

2.14. Cutter Drive / Protection Circuit .............................................................................35 

2.15. DC Motor Driver / Encoder Circuit ........................................................................36 

2.16. Summary of PCB connectors .................................................................................37 

3. REPLACE IMPORTANT PARTS ........................................................................... 40 

3.1. Replacing Top Cover................................................................................................40 

3.2. Replacing Top Inner Cover ......................................................................................42 

3.3. Replacing Lower Cover ...........................................................................................44 

3.4. Replacing Main Board .............................................................................................45 

i


3.5. Replacing Platen Assembly ......................................................................................46 

3.6. Replacing the Stepping Motor Bracket / Metal Assembly and Stepping Motor .........47 

3.7. Replacing Label Guide & Gap Sensor Assembly ......................................................49 

3.8. Replacing Black Mark Sensor Assembly ..................................................................51 

3.9. Replacing Print Head Assembly ...............................................................................52 

3.10. Replacing Head Open Micro Switch ......................................................................53 

3.11. Replacing Ribbon Motor and Ribbon Sensor ..........................................................55 

3.12. Replacing Feed Button and Feed Button PCB ........................................................57 

3.13. Install Memory Card (Option) ................................................................................58 

3.14. Install Peel Off Module (Option) ............................................................................59 

3.15. Loading the Label in Peel-off Mode .......................................................................61 

3.16. Install Cutter Module (Option) ...............................................................................63 

3.17. Loading Label in Cutter Mode ...............................................................................67 

3.18. Install Internal Ethernet Module (Option) ...............................................................68 

4. Power on Utilities ................................................................................................. 72 

4.1 Ribbon and Gap/Black Mark Sensor Calibration .......................................................72 

4.2 Gap/Black Mark Calibration;Self-test;Dump mode..............................................73 

4.3 Printer Initialization ..................................................................................................76 

4.4 Black Mark Sensor Calibration .................................................................................77 

4.5 Gap Sensor Calibration .............................................................................................77 

4.6 Skip AUTO.BAS ......................................................................................................77 

5. GAP AND BLACK MARK SENSOR SELECTION ................................................ 79 

6. BIOS Update.......................................................................................................... 79 

7. TROUBLESHOOTING ........................................................................................... 80 

8. MAINTENANCE ..................................................................................................... 84 

9. PARTS LIST ........................................................................................................... 85 

9.1 Cover ........................................................................................................................85 

9.1 Cover drawing ..........................................................................................................86 

9.2 Main Board ...............................................................................................................87 

9.2 Main Board drawing .................................................................................................88 

9.3 Top Inner Cover ........................................................................................................89 

9.3 Top Inner Cover drawing ..........................................................................................91 

9.4 Ribbon Mechanism Assembly ...................................................................................92 

9.4 Ribbon Mechanism Assembly drawing .....................................................................93 

9.5.1 Lower Inner Cover .................................................................................................94 

9.5.1 Lower Inner Cover drawing ...................................................................................95 

9.5.2 Lower Inner Cover .................................................................................................96 

9.5.2 Lower Inner Cover drawing ...................................................................................97 

9.6 Stepping Motor Assembly .........................................................................................98 

ii


9.6 Stepping Motor Assembly drawing ...........................................................................99 

9.7 Option and accessories ............................................................................................ 100 

9.7 Option and accessories drawing .............................................................................. 102 

Update History ........................................................................................................ 103 

iii


1. FUNDAMENTAL OF THE SYSTEM 

1.1. Overview 

1.1.1. Front View 

Label Roll Capacity 

View Window 

Ribbon Access Window 

LED Indicator 

Feed Button 

Top Cover Open Lever 

Fig. 1.1.1 Front View 

1


1.1.2. Rear View 

1. USB Interface 

2. Centronics Interface 

3. RS-232 Interface 

4. Power Jack 

5. Power Switch 

6. Rear Paper Guide 

6 

1 2 3 4 5 

Fig. 1.1.2 Rear View 

1.2. Specification 

1.2.1. Printer 

Item TTP-245 TTP-343 

Mechanism 

Resolution 203 dpi. 300 dpi 

Max. Print Width 108 mm. 104 mm 

Max. Print Length 1000 mm ( 39” ). 420 mm 

Ribbon Capacity 300 meter with 1” core. (Max. OD 67 mm) 

Printing Speed 2, 3, 4 and 5 ips selectable. 

peeler function 2, 3 ips selectable 3 ips selectable 

Printing Method Direct thermal and thermal transfer printing. 

2


Enclosure 

Structure 

Double-walled plastic. 

Dimension 

Standard Model: 314mm(L) x 213mm(W) x 188mm(H) 

Operation Panel One push switch, and one indicator LED (Green, 

Orange, Red colors). 

Hardware 

Sensor 

Transmissive sensor (offset 6 mm from liner 

edge). 

Reflective sensor (position adjustable). 

Head open micro switch. 

Ribbon end sensor 

Memory 

2M byte Flash memory 

2M bytes DRAM 

Interface 

RS-232C (max baud rate, 19,200 bps). 

USB: V1.1. 

Centronics. 

Power 

AC input: 100-240V universal auto switching power 

supply. 

DC output: 24V 3.75A. 

Firmware 

Font Type 

8 alpha-numeric bitmap fonts, and 1 true type font. 

Rotation 

0, 90,180 and 270 degrees. 

Barcode Format 1D Bar code 

Code 39, Code 93, Code 128UCC, Code128 subsets 

A.B.C, Codabar, Interleave 2 of 5, EAN-8, EAN-13, 

EAN-128, UPC-A, UPC-E, EAN and UPC2(5) digits 

add-on, MSI, PLESSEY, POSTNET, ChinaPOST, 

ITF-14, EAN-14. 

2D Bar code 

PDF-417, Maxicode, and DataMatrix, QR CODE. 

Command Set TSPL2 

Environment 

Operation Temperature: 5℃ ~ 40℃. 

Relative Humidity: 25% ~ 85% (Non Condensing). 

Storage Temperature: -40℃ ~ 60℃. 

Relative Humidity: 10% ~ 90% (Non Condensing). 

3


1.2.2. LED 

LED Color 

Green/ Solid 

Green/ Flash 

Amber 

Red / Solid 

Red / Flash 

Description 

This illuminates that the power is on and the device is 

ready to use. 

This illuminates that the system is downloading data 

from PC to memory and the printer is paused. 

This illuminates that the system is clearing data from 

printer. 

This illuminates printer head open, cutter error. 

This illuminates a printing error, such as paper empty, 

paper jam, ribbon empty, or memory error etc. 

1.2.3. Button 

Feed • Press the button when the LED is green. 

• It feeds the label to the beginning of the next label. 

Pause • Press the feed button during printing 

Ribbon Sensor and 

Gap/Black Mark 

Sensor Calibration 

• The printing job is suspended. 

1. Turn off the power switch. 

2. Hold on the button then turn on the power switch. 

3 Release the button when LED becomes red and blinking. 

(Any red will do during the 5 blinks). 

Note: 

• It will calibrate the ribbon sensor and gap/black 

mark sensor sensitivity. 

• The LED color will be changed as following order: 

Amber red (5 blinks) amber (5 blinks) 

green (5 blinks) green/amber (5 blinks) 

red/amber (5 blinks) solid green 

Please select gap or black mark sensor by GAP or 

BLINE command prior to calibrate the sensor. 

For more information about GAP and BLINE command, 

please refer to TSPL2 programming manual. 

4


Gap/Black Mark 

Sensor Calibratio, 

Label Length 

Measurement, Self 

1.Turn off the power switch. 


3. Release the button when LED becomes amber and 

blinking. (Any amber will do during the 5 blinks). 

Test and enter Dump 

Mode 

• The LED color will be changed as following order. 




• It calibrates the sensor and measures the label 

length and prints internal settings then enter the 

dump mode. 

Note: 

Please select gap or black mark sensor by GAP or 

BLINE command prior to calibrate the sensor. 

For more information about GAP and BLINE command, 

please refer to TSPL2 programming manual. 

Printer Initialization 1. Turn off the power switch. 


3. Release the button when LED turns green after 5 amber 

blinks. (Any green will do during the 5 blinks). 

• The LED color will be changed as following: 




Note: 

Always do gap/black mark sensor calibration after 

printer initialization. 

Force Black Mark 

Sensor Calibration 



3. Release the button when LED turns green/amber after 5 

green blinks. (Any green/amber will do during the 5 

blinks). 





5


Force Gap Sensor 1. Turn off the power switch. 

Calibration 2. Hold on the button then turn on the power switch. 

3. Release the button when LED turns red/amber after 5 

green/amber blinks. (Any red/amber will do during the 5 

blinks). 





Skip AUTO.BAS 

1. Turn off printer power. 

2. Press the FEED button and then turn on power. 

3. Release the FEED button when LED becomes solid 

green. 





4. Printer will be interrupted to run the AUTO.BAS program. 

6


1.3. Supply Specification 

1.3.1. Paper 

Item 

Specification 

Type 

Label (Continuous , Die-cut , Fan-fold). 

Wound Type Outside wound. 

Width 20~112mm (0.78" ~ 4.4") 

Length 

( for peel and cutter ) 

10mm ~ 1000mm (0.4” ~ 39”). 

25.4mm ~ 1000mm (1” ~ 39”). 

Thickness 

0.06mm ~ 0.19mm. 

Roll Diameter 5”. 

Roll Core Diameter 25.4mm ~ 76.2mm (1” ~ 3”). 

Gap Height 

2mm min. 

Black Mark Height 2mm min. 

Black Mark Width 8mm min. 

1.3.2. Ribbon 

Item 

Specification 

Type 

Wax, Wax / Resin, Resin. 

Core Diameter 1". 

Width 

Max 110mm. 

Capacity 

300m with 1" core. 

Wound Type Outside wound. 

Ribbon End 

Clear or silver end tape. 

7


2. ELECTRONICS 

2.1. Circuit Description 

Fig.2.1 Circuit Diagram 

The main board of printer includes 10 system blocks: 

1. MCU. 

2. Memory System. 

3. Decoder System. 

4. Print Head System. 

5. Motor System. 

6. Power System. 

7. Communication Interface System. 

8. USB System. 

9. Sensor System. 

10. Cutter System. 

8


The following figure shows the PCB system areas: 

Sensor System 

Memory System 

Cutter System 

Motor System 

Print 

Head 

System 

MCU 

USB System 

Communication 

Interface System 

Decoder System 

Power System 

9


2.2. MCU Circuit and MCU PIN Description 

Fig. 2.2 MCU PIN Description Diagram 

10


2.2.1. MCU PIN Description: 

11


12


13


14


15


2.3. Reset Circuit 

Fig. 2.3 Reset Circuit Diagram 

80945 reset IC is used to detect the voltage. When the driving voltage is lower than 

4.5VDC, reset will be enabled. 

16


2.4. Memory Circuit 

Fig. 2.4 Memory Circuit Diagram 

This is the memory circuit. The U6 & U7 are 2M Byte FLASH ROM and U8 is 2M 

Byte DRAM. 

17


2.5. Decoder Circuit 

Fig. 2.5 Decode Circuit Diagram 

18

FFFF FFFF 


2.6. Memory Map 

ON-CHIP RAM 

FFFF F000 

RESERVED 

FFFF 8800 

FFFF 87FF 

REGISTER 

FFFF 81A0 

FFFF 8000 

RESERVED 

00FF FFFF 

. 

. 

0200 0000 . 

. 

DRAM SPACE 

0100 0000 00E0 0000 TPH STB 

00D8 0003 Motor Phase2 

I/O 

00D8 0002 Motor Phase1 

00D8 0001 RTC register data 

00C0 0000 00D8 0000 RTC register address 

ECP 

00D0 0003 

Memory Card 

00D0 0002 Ribbon Sensor value 

00D0 0001 Black mark sensor value 

0080 0000 00D0 0000 Gap sensor Value 

Memory Card 

00C8 0003 

00C8 0002 

Buzzer 

Reserved 

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00C8 0001 Mem_load signal 

0040 0000 00C8 0000 Cutter Control 

00C0 0003 Motor Current 

00C0 0002 USB Data 

0010 0000 ROM2 00C0 0001 Centronic Control 

0000 0000 ROM1 00C0 0000 Centronic Data 

20


2.7. Print Head Circuit 

VDD 

Fig. 2.7 Print Head Circuit Diagram 

CLK and LAT connect to thermal head control clock and data latch respectively. 

TPH_EN signal controls the DC24V voltage of the thermal head. When TPH_EN is 

high, the thermal head will be separated from 24V (V DD ). U21 controls protecting print 

head. It is used to make sure the power of print head is off when switch off the printer. 

Q1 and Q2 are used to limit current of print head. 

Both /STB1 and /STB2 determine whether to heat the thermal head or not. The RC 

charging time of U15 and 74HC123 limit the heating time of print head to avoid burning 

the print head. 

DI signal sends printer data to the print head. 

TM signal is the temperature/voltage sensor for thermal head. 

The Vdet feeds back the voltage and compensates the heat time for voltage accuracy 

when printing. 

21


2.8. Stepping Motor Drive / Protection Circuit 

Fig. 2.8 Stepping Motor Drive/ Protection Circuit Diagram 

Connector, JP8, sends the pattern as shown in table1. The status of I0 & I1 

determines the stepping motor power level. The power level pattern is shown in 

table2. The motor port is a protection pin. When it is at low level, the power of the 

motor system will be closed. Power will be on again until motor pin is the pulse of 

high level. Phase1 and phase2 determine the pattern of stepping motor drive 

circuit. For example, the sequence of phase 1/ phase 2 in full step mode is 0/0 → 

0/1 → 1/1 → 1/0. 

22


Table 1 Stepping Motor Pattern 

Pin on 

Step 

JP12 

1 2 3 4 Phase 

1 on on A 

2 on on /A 

3 on on /B 

4 on on B 

Table 2 Stepping motor power pattern 

Motor Current Current percentage I0 I1 

High Level 100% L L 

Medium Level 60% H L 

Low Level 20% L H 

Zero Current 0% H H 

23


2.9. Power Circuit 

Fig. 2.9 Power Circuit Diagram 

The U3 SI-8050JD converts 24Vdc to 5Vdc. the limit current protest is 1.6A. 

24


2.10. Parallel Interface Circuit 

Fig. 2.10 Parallel Interface Circuit Diagram 

The Centronic interface supports one-way transmission, SPP mode or ECP mode. 

The parallel interface circuit is used with the externally connected personal 

computer parallel interface through the printer cable. When PC’s strobe signal 

comes in, the printer responds busy status until it reads the data from parallel 

interface. Printer will respond error signal to PC when it is in error status. 

25


The pin assignments for nibble mode parallel interface connector is as following: 

Table 3. Pin Assignments For nibble mode Parallel Interface Connector 

Pin SPP Mode Nibble Mode In/Out Function 

1 Strobe HostClk 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 Data 0-7 In Data Bus. Single-directional. 

10 Ack PtrClk Out 

11 Busy PtrBusy 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. 

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 

AckDataReq Out When low, device acknowledges reverse request. 

13 Select X-Flag Out Extensibility flag 

14 Auto Linefeed HostBusy In 

When in forward direction, a high indicates data, 

while a low indicates a command cycle. In reverse 

direction, it functions as HostBusy. 

15 No Defined NC N/A 

16-17 Ground Ground GND Ground 

18 Logic High High / Vcc Out 


31 Initialize nInit In A low indicates data in reverse direction 

32 Error / Fault nDataAvail Out 

A low set by the device indicates that the reverse 

data is available 


36 Select Printer 1284 Active In 

A high indicates that host is in 1284 transfer 

mode. Taken low to terminate. 

26


2.11. Serial Interface Circuit 

Fig. 2.11 Serial Interface Circuit Diagram 

RS-232 is an asynchronous transfer interface, which used with externally connected 

personal computer and keyboard unit. JP15 connects to PC serial interface through the 

RS-232 cable. RxD is a data receive pin of MCU. CTS is clear to send of MCU, which 

sends a signal from the external device. TxD is a data output pin of MCU. RTS is the 

request to send signal, which sends signal to the external device. 

27


2.12. USB Circuit 

Fig. 2.12 USB Circuit Diagram 

28


2.12.1. USB PIN Function 

The standard USB 1.1. PIN function is as following: 

29


30


2.13. Sensor Circuit 

2.13.1. Gap and Black Mark Sensor 

Fig. 2.13.1 Gap / Black Mark Sensor Circuit Diagram 

1. The gap sensor is a penetrable sensor with 64 levels. 

2. Black mark sensor is a reflecting sensor with 64 levels. 

3. The gap sensor activates when gap and black mark SW signal is high. The 

black mark sensor activates when GAP& BM_SW signal is low. 

31


2.13.2. Head Open Micro Switch 

Fig. 2.13.2 Head Open Micro Switch Circuit Diagram 

The head open micro switch is a micro-switch. The voltage is low when the print 

head opens; otherwise, it is high. 

32


2.13.3. Peel-off Sensor 

Fig. 2.13.3 Peel-off Sensor Circuit Diagram 

This is a reflecting sensor. The peel-off sensor signal voltage is high when the 

paper is detected; otherwise, it is low. 

33


2.13.4. Ribbon Sensor 

Fig. 2.13.4 Ribbon Sensor Circuit Diagram 

This ribbon sensor is a reflecting sensor. The RIBB1~3 can be changed by command 

or auto-calibration. The REND signal voltage is high when the ribbon is detected; 

otherwise, it is low. 

34


2.14. Cutter Drive / Protection Circuit 

Fig. 2.14 Cutter Drive / Protection Circuit Diagram 

RESET signal is high when the printer is turned on. The cutter is activated when 

CTEN signal is low. CTPhase signal controls the rotated direction. U15B 

74HC123 controls the breaking of the DC motor of the cutter. The sensor of the 

cutter sends high - low signal to MCU through the CTSENS pin that detects action 

of a cutter. 

35


2.15. DC Motor Driver / Encoder Circuit 

Fig. 2.15 DC Motor Drive/ Encoder Circuit Diagram 

DCM signal is used to switch on/off the motor driver, The DC PHASE signal is to 

control the direction of the rotate the encoder circuit, which is used to detect the rotary 

rate. DC SENS signal voltage is high when the hole of the gear is detected; otherwise, 

it is low. 

36


2.16. Summary of PCB connectors 

Connector Description Remark 

JP1 Reserved 

J1A Internal Ethernet connector Pin 1 with red wire 

J1B Internal Ethernet connector 

JP2 DC power jack 

JP3 JTAG connector For CPLD program update 

JP4 For firmware update card At the back side of PCB 

JP5 Button & LED 

JP6 Memory card connector At the back side of PCB 

JP7 Canceled 

JP8 Stepping motor 

JP9 Ribbon DC motor For thermal transfer printer only 

JP10 Cutter 

JP11 TPH connector 

JP12 Centronics port connector 

JP13 USB connector 

JP14 RS-232 pin 9 +5V jumper JP14 Shorted can provide 5V 

on RS-232 pin9 

JP15 RS-232 connector 

JP16 Head open sensor 

JP17 Peel off sensor 

JP18 Gap/black mark sensor (emitter & 

receiver) 

JP19 Ribbon end sensor 

JP20 Reserved 

JP21 Gap/black mark sensor (emitter & 

receiver) 

JP22 Reserved 

JP23 Reserved 

JP24 Reserved 

JP25 Provide 5V DC for Centronics pin 18 Shorted JP25 can provide 5V 

DC 0.3A for Centronics port 

pin18 

JP26 5V DC connector Provide 5V DC, 0.3A 

JP27 Hardware ID 

37


Top side of Main PCB 

Power switch JP14 

J1A J1B 

JP25 

JP5 

JP11 

JP20 

JP16 

CPU 

JP19 

JP21 

JP27 

JP18 

JP9 JP8 JP10 

JP17 

JP26 

38


Bottom side of PCB 

JP4 

JP6 Memory 

card connector 

U14 Cutter driver chip 

39


3. REPLACE IMPORTANT PARTS 

Please turn off the power switch and unplug the power adapter before replacing parts. 

3.1. Replacing Top Cover 

1. Open the printer top cover by pushing the top cover open levers to the 

paper outlet direction. The top cover support will hold the printer top cover. 

Top cover support 

Top cover open 

lever 

2. Open the top cover to the ultimate open angle. Push the top cover support to 

the communication port direction to disconnect the separate the lower inner 

cover and top cover support. 

40


3. Remove the 6 screws in the top inner cover. 

Screws 

Screws 

4. Disconnect the harness from the Feed button PCB. Replace the top cover. 

5. Reassemble parts in reverse procedures. 

41


3.2. Replacing Top Inner Cover 

1. Refer 3.1 to remove the top cover. 

2. Remove the 6 screws of lower inner cover. Turn the printer upside down, 

remove the 2 screws of hinge holder, 1 screw of memory card cover. 

screws 

screws 

screw of memory 

card cover 

2 screws of hinge holder 

3. Disconnect all the harnesses from Main Board. Lift up the lower inner cover. 

Turn the lower inner cover upside down, and remove the 6 screws of lower 

inner cover and hinge holders. 

42


4. Replace the top inner cover. 

5. Reassemble in reverse procedures. 

43


3.3. Replacing Lower Cover 

1. Refer to 3.1 to open the top cover. 

2. Remove the 6 screws of lower inner cover. Turn the printer upside down, 

remove the 2 screws of hinge holder, 1 screw of memory card cover. 

screws 

screws 

screw of memory 

card cover 

2 screws of hinge holder 

3. Disconnect all the harnesses from Main Board. Lift up the lower inner cover. 

4. Replace lower cover. 

5. Reassemble in reverse procedures. 

44


3.4. Replacing Main Board 

1. Please refer to 3.3 for disassembling the LOWER COVER and LOWER inner 

cover. 

2. Disconnect all harnesses. 

3. Remove 4 screws on the main board. 

Screw 

Screw 

Main Board 

Lower Cover 

Screw 

Screw 

4. Replace the main board/lower inner cover. 


45


3.5. Replacing Platen Assembly 

1. Squeeze two sides of platen assembly and take it out. 

Squeeze Here 

Squeeze Here 

Platen 

2. Replace a platen. 

3. Reassemble it in reverse procedures. 

46


3.6. Replacing the Stepping Motor Bracket / Metal Assembly 

and Stepping Motor 

1. Please refer to 3.1 for disassembling the lower cover and lower inner cover. 

2. Disconnect all hardness. 

3. Turn the lower inner cover upside down. 

4. Remove 2 screws that fixed the stepping motor on the bracket 

5. Remove the stepping motor. 

Motor 

Screws 

Lower inner cover 

6. Use a screwdriver to screw off 8 screws of the stepping motor bracket / 

metal ass’y. 

47


Screws 

Screws 

7. Remove the stepping motor bracket / metal ass’y. 


48


3.7. Replacing Label Guide & Gap Sensor Assembly 


2. Disconnect all the hardness. 

3. Turn the lower inner cover upside down. 

4. Screws off 4 screws and remove the plastic laminate. 

Plastic Laminate 

Screws 

Screws 


5. Screws off 2 screws to remove the white label guide rack fixing plate 

6. Remove 2 screws from a gap sensor PCB then remove the gap sensor PCB. 

Screws 

Label Guide 

Rack Fixing 

Plate 

Gap Sensor 

PCB 

Screw 

49


7. Turn over the lower inner cover. 

8. Move right side and left side label guides to the end of each side. Rotates 90 

degrees and pull them out. 


Label Guide 


50


3.8. Replacing Black Mark Sensor Assembly 


2. Disconnect all hardness. 

3. Upside down the lower inner cover. Remove 4 screws and remove the plastic 

laminate. 

4. Remove 1 screw from the black mark sensor. 

Screw 

Black Mark 

Sensor 

Black Mark Sensor 

Lower inner 

cover 

Fixing Plate 

5. Upside down the lower inner cover. 

6. Replace the black mark sensor assembly. 




51


3.9. Replacing Print Head Assembly 

1. Press right concave of the print head bracket and use a flat screwdriver to 

stick left side of the printer head bracket then pick up the print head assembly. 

2. Disconnect print head harnesses. 


Print Head 

Bracket Concave 

Stick Flat 

Screwdriver Here 

52


3.10. Replacing Head Open Micro Switch 

1. Please refer to 3.1 for disassembling the top cover and top inner cover. 

2. Disconnect ribbon mechanism by removing 4 screws at top inner cover. 

Screws 

Screws 

Top inner cover 

Mechanism 

3. Remove 2 screws and remove the head open micro switch. 

53


Screws 

Head Open 

Micro Switch 


54


3.11. Replacing Ribbon Motor and Ribbon Sensor 


2. Disconnect ribbon mechanism by removing 4 screws from the top inner 

cover. 

3. Remove 2 screws on the ribbon motor PCB. 

4. Replace the ribbon motor sensor. 

Screw 

s 

Ribbon 

Mechanism 

Screw 

s 

Screws 

Ribbon 

Motor 

Sensor 

5. Screw off 2 screws from the top inner cover. 

6. Replace the ribbon sensor. 


55


Top inner cover 

Ribbon Sensor 

Screws 

56


3.12. Replacing Feed Button and Feed Button PCB 


2. Turn the top cover upside down. 

3. Screw off 2 screws on feed button PCB and remove feed button PCB. 

4. Use a flat head driver to poke up the feed button. 

Top Cover 

Screws 

Feed Button PCB 


57


3.13. Install Memory Card (Option) 

1. Turn the printer upside down. 

2. Remove the screw that fixes the memory card cover. 

Screw 

Memory Card Cover 

3. Plug in a memory card, pin to pin, on main board. 

Memory Card 

4. Revert the memory card cover. 

Memory Card Cover 


58


3.14. Install Peel Off Module (Option) 

1. Open the top cover. 

2. Remove two screws for hinge support and one screw for memory card cover in 

lower cover. 

3. Remove 6 screws on the lower inner cover. 

4. Hold the lower cover and lift up the top cover open levers to separate the lower 

inner cover and the lower cover. (Please refer to section 3.1 ) 

5. Connect the harness of peel-off module through the slot of lower inner cover. 

slot 

6. Lift up the lower inner cover to gently push peel off panel into the two concaves of 

lower cover front side. 

Note : Must lift up the lower inner cover first, then, the peel-off module 

could be installed into the concave of lower inner cover. 

concave 

59


7. Connect the harness of peel-off module at JP17 on the main board. 

8. Put down the lower inner cover onto lower cover. 

9. Push peel off module to lock to the lower inner cover. 


60


3.15. Loading the Label in Peel-off Mode 

Note: Both thermal paper and plain paper apply for peel-off function but 

neither PVC nor vynle work at peel-off function. 

1. Insert a 1” label spindle into a paper roll. 

2. Open the printer top cover by pushing forward the top cover open levers. The top 

cover support will hold the printer top cover. 

Peel-off panel 

Top Cover Open Lever 

Backing paper 

Opening 

3. Install the paper roll on the paper roll mount. 

4. Open the peel-off panel by pulling it out. 

Peel-off 

panel 

61


5. Feed the paper, printing side facing up, through the paper guide and pass over the 

platen. 

6. Lead the paper through the backing paper opening, beneath the roller, and tear off 

one piece of the label. 

7. Adjust the paper guide by removing left or right to fit the paper width. 

Top Cover 

Top Cover Support 

Roller 

Peel-off panel 

Lead the paper through the backing paper opening, beneath the roller 

8. Push the peel-off panel back to the printer. 

9. Close the top cover by lifting up the top cover support and close the top cover 

slowly. 

Note: Pull the label outward tightly after closing the top cover. 

Complete label installation for peel-off mode 

62


3.16. Install Cutter Module (Option) 

1. Upside down the printer to remove two screws of hinge holder in the lower 

cover. 

Screw 

hinge 

holder 

of 

Screw of 

hinge 

holder 

2. Remove the screw that fixes the memory card cover. 

Memory card 

cover 

3. Plug in the Cutter Driver IC at U14 socket on the main board. 

63


Cutter Driver IC 

4. Open the printer top cover by pushing the top cover open levers to the paper 

outlet direction. The top cover support will hold the printer top cover. 

Top cover 

support 

5. Open the top cover to the ultimate open angle. Push the top cover support to the 

communication port direction to disconnect the lower inner cover and top cover 

support. 

64


6. Pull up the front panel from the lower cover. 

7. Remove the 6 screws in lower inner cover. 

Screws 

Screws 

8. Lift up the lower inner cover from the Lower Cover. 

9. Install the 4 pin connector of the cutter onto JP10 on the main board. Pull the wire 

of the 4-pin connector through the slot of lower inner cover front side. Then, put 

back the lower inner cover. 

wire of the 

4-pin connector 

Location 

JP10 

65


Slot 

Cutter wire 

10. Gently push cutter module into the two slots of lower inner cover front side, then 

push cutter to lock into the lower inner cover. 

11. Assemble the memory card cover. 


Lower inner 

cover 

66


3.17. Loading Label in Cutter Mode 

1. Insert a 1” label spindle into a paper roll. 

2. Open the printer top. 

3. Install a paper roll on the paper roll mount. 

4. Feed the paper, printing side face up, through the paper guide and pass over the 

platen. 

5. Lead the paper through the cutter paper opening. 

6. Adjust the paper guide by removing left or right to fit the paper width. 

Top Cover 

Paper Guide 

Platen 

Cutter 

Top Cover Support 

Label installation in cutter mode 

7. Close the top cover by lifting up the top cover support and close the top cover 

slowly. 

Complete label installation in cutter mode 

67


3.18. Install Internal Ethernet Module (Option) 

Checklist 

• Internal Ethernet print server module installation guide 

• Screw TP3*6 x 6 pcs 

• RJ45 / 8 PIN connector interface cable 

• Print server module / 36 PIN connector interface cable 

• Internal print server module (Including software CD / Driver / User’s manual) 

• Copper pillar 

• RJ45 interface daughter board 

RJ45 interface 

daughter board 

網路連接模組 

轉接板 

Print Server Module ( With bracket ) 

Copper pillar 

機械螺絲 

M3*6+ 華司 

1pcs Screw x 6 

機械螺絲 

M3*6+ 華司 

1pcs 

Print server module / 36 PIN 

connector interface cable 網路連 

接模組轉接線 36PIN / 18PIN 

300mm 

RJ45 轉接線 / 8 PIN connector interface 

cable 

68


1. Break through the plastic partial tab at the rear side of lower cover to get the RJ45 interface 

opening. 

白色插座 RJ45 interface 

opening 1.25mm 8PIN 

白色插座 Remove 

the screw1.25mm 

8PIN 

2. Remove the screw from the main board. Fasten the copper pillar. 

Copper pillar 

3. Plug the RJ45 white connector to the RJ45 daughter board connector. Fasten the RJ45 

connector daughter board upon the lower cover and copper pillar. The ground wire from the 

mechanism must be screwed on the daughter board at copper pillar. 

Screws 

TP3*6 螺 

絲 Screw 4pcs 

TP3*6 

螺絲 

4pcs 

RJ45 / 8 PIN connector 

interface cable interface 

cable 網路連接模組 

轉接板 

4. Install the print server module in printer lower cover with the above 4 screws. 

Ground wire 

TP3*6 螺絲 

4pcs 

RJ45 connect daughter 

board 網路連接模組 

轉接板 

69


Screw 

Screw 

內建式 

內建式 

乙太網 

乙太網 

路模組 

Screw 

路 Screw 模組 

內建式 

內建式 

Internal 內建 

乙太網 

乙太網 

Print Server 

路模組 

路模組 

Module 式乙太 

網路模組 

5. Connect the print server module interface cable (36PIN) and RJ45 interface cable to print 

server module. 

RJ45 interface cable 

網路連接模組轉接線 

36PIN / 18PIN 

300mm 

Print server module 

interface cable 網路 

連接模組轉接線 

36PIN / 18PIN 

300mm 

6. Plug the print server module interface cable to connector J1A and J1B on the PCB, the left 

side harness (with red wire at the left side) is for J1A, the right side harness location is for J1B. 

J1A 

網 

J1B 

路 

網路 

連 

連接 

接 

模組 

模 

轉接 

7. Plug the 2PIN connector from the internal print server to the connector JP26 on the PCB for 

組 

線 

5V DC power. 

轉 

36PI 

接 

N / 

線 

18PI 

36P 

70 

N 

IN / 

300 

18P 

mm


2 PIN 

JP26 

網路 

連接 

模組 

connector 網路 

連接模組轉接 

線 36PIN / 

18PIN 300mm 

轉接 

線 

※ For print 36PIN server setup. Please refer to the print server software CD and manual. 

/ 

18PIN 

300m 

m 

71


4. Power on Utilities 

There are six power-on utilities to set up and test printer hardware. These utilities are 

activated by pressing FEED button and by turning on the printer power simultaneously. 

The utilities are listed as below: 

1. Ribbon sensor calibration;Gap/black mark sensor calibration 

2. Gap/black mark sensor calibration;Self-test and dump mode 

3. Printer initialization 

4. Black mark sensor calibration 

5. Gap sensor calibration 

6. Skip AUTO.BAS 

4.1 Ribbon and Gap/Black Mark Sensor Calibration 

Gap/black mark sensor sensitivity should be calibrated at the following conditions: 

1. A brand new printer 

2. Change label stock. 

3. Printer initialization. 

Please follow the steps below to calibrate the ribbon and gap/black sensor. 



3 Release the button when LED becomes red and blinking. (Any red will do during the 

5 blinks). 

• It will calibrate the ribbon sensor and gap/black mark sensor sensitivity. 

• The LED color will be changed as following order: 

Amber red (5 blinks) amber (5 blinks) green (5 blinks) 

green/amber (5 blinks) red/amber (5 blinks) solid green 

Note: 

Please select gap or black mark sensor by GAP or BLINE command prior to 

calibrate the sensor. 

For more information about GAP and BLINE command, please refer to TSPL2 

programming manual. 

72


4.2 Gap/Black Mark Calibration;Self-test;Dump mode 

While calibrate the gap/black mark sensor, printer will measure the label length, print 

the internal configuration (self-test) and then enter the dump mode. To calibrate gap or 

black mark sensor, depends on the sensor setting in the last print job. 

Please follow the steps below to calibrate the sensor. 

1.Turn off the power switch. 


3. Release the button when LED becomes amber and blinking. (Any amber will do 

during the 5 blinks). 

• The LED color will be changed as following order. 



4. It calibrates the sensor and measures the label length and prints internal settings 

then enter the dump mode. 

Note: 

Please select gap or black mark sensor by GAP or BLINE command prior to 

calibrate the sensor. 

For more information about GAP and BLINE command, please refer to TSPL2 

programming manual. 

73


Self-test 

Printer will print the printer configuration after gap/black mark sensor calibration. 

Self-test printout can be used to check if there is any dot damage on the heater 

element, printer configurations and available memory space. 

Print head check pattern 

Firmware version 

Firmware checksum 

Printed mileage (meter) 

Serial port configuration 

Country code 

Print speed (inch/sec) 

Print darkness 

Label size (inch) 

Gap distance (inch) 

Gap/black mark sensor sensitivity 

Numbers of download files 

Total & available memory space 

Fig. 3 Self-test printout 

Note: 

1. The physical flash memory for RoHS compliant version is 2MB Flash and 2MB 

DRAM. 

2. System occupies 960 KB in Flash memory so total flash memory space for 

user downloading is 1088 KB 

3. System occupies 1792 KB in DRAM so total DRAM memory space for user 

downloading is 256 KB 

74


Dump mode 

Printer will enter dump mode after printing printer configuration. In the dump mode, 

all characters will be printed in 2 columns as following. The left side characters are 

received from your system and right side data are the corresponding hexadecimal 

value of the characters. It allows users or engineers to verify and debug the program. 

ASCII Data 

Hex decimal data 

related to left 

column of ASCII 

data 

Fig. 4 Dump mode printout 

Note: 

Turn off / on the power to resume printer for normal printing. 

75


4.3 Printer Initialization 

Printer initialization is used to clear DRAM and restore printer settings to defaults. The 

only one exception is ribbon sensitivity, which will note be restored to default. 

Printer initialization is activated by the following procedures. 



3. Release the button when LED turns green after 5 amber blinks. (Any green will do 

during the 5 blinks). 




Printer configuration will be restore to defaults as below after initialization. 

Parameter 

Default setting 

Speed 

TTP-245, 127 mm/sec (5 ips) 

TTP-343, 76 mm/sec (3 ips) 

Density 7 

Label Width 4.25” (108.0 mm) 

Label Height 2.5” (63.4 mm) 

Sensor Type Gap sensor 

Gap Setting 0.12” (3.0 mm) 

Print Direction 0 

Reference Point 0,0 (upper left corner) 

Offset 0 

Tear Mode 

On 

Peel off Mode Off 

Cutter Mode Off 

Serial Port Settings 

9600 bps, none parity, 

8 data bits, 1 stop bit 

Code Page 850 

Country Code 001 

Clear Flash Memory No 

Note: 

Always do gap/black mark sensor calibration after printer initialization. 

76


4.4 Black Mark Sensor Calibration 

Set black mark sensor as media sensor and calibrate the black mark sensor. 

Please follow the steps as below. 



3. Release the button when LED turns green/amber after 5 green blinks. (Any 

green/amber will do during the 5 blinks). 




4.5 Gap Sensor Calibration 

Set gap sensor as media sensor and calibrate the gap sensor. 

Please follow the steps as below. 



3. Release the button when LED turns red/amber after 5 green/amber blinks. (Any 

red/amber will do during the 5 blinks). 


Amber red (5 blinks) amber (5 blinks) green (5 blinks) green/amber 

(5 blinks) red/amber (5 blinks) solid green 

4.6 Skip AUTO.BAS 

TSPL2 programming language allows user to download an auto execution file to flash 

memory. Printer will run the AUTO.BAS program immediately when turning on printer 

power. The AUTO.BAS program can be interrupted without running the program by the 

power-on utility. 

Please follow the procedures below to skip an AUTO.BAS program. 

1. Turn off printer power. 

2. Press the FEED button and then turn on power. 

3. Release the FEED button when LED becomes solid green. 


77


Amber red (5 blinks) amber (5 blinks) green (5 blinks) green/amber 

(5 blinks) red/amber (5 blinks) solid green 

4. Printer will be interrupted to run the AUTO.BAS program. 

78


5. GAP AND BLACK MARK SENSOR SELECTION 

Gap Sensor selection 

 

 

Default setting. No extra action necessary. 

If you want to change sensor type from black mark sensor to gap sensor, 

please do printer initialization (refer to Initialization section). 


 

 

 

 

Start Label View XLT+ or Nice Label LE software. 

Set label side in the software and select black mark sensor as sensor type. 

Install label media with black mark or hole for registration. 

Print one label to switch sensor from gap to black mark sensor. 

Remember, always do sensor calibration after sensor selection (refer to Gap and 

Black Mark Sensor Calibration section). 

6. BIOS Update 

If printer BIOS update is required, please do the following steps. 

Update the BIOS file and reset the printer. 

Update File 

1. Make sure the printer is at ready status and the LED is solid green. 

2. Copy the BIOS file to printer parallel port by the following command at 

MS-DOS prompt mode. 

C:\>COPY TTP245.NEW /B LPT1 

3. During BIOS updating process, the LED will blink red and orange alternately. 

When BIOS update is completed, printer will reset automatically and LED will 

become solid green. 

79

7. TROUBLESHOOTING 

This section lists the common problems that you may encounter when operating the 

printer. Also, it provides solutions. 

1. The printer is not receiving power. 

• Turn the power switch on. 

• Check power connection from both the socket to the power supply and 

the power supply to the printer. 

2. The printer is on and ready to use. 

• No action necessary. 

3. The printer is paused. 

• Press the feed button to resume printing. 

4. The LED is on red blinking. 

If the LED is on red blinking, which means that either label or ribbon runs out. 

Label runs out: 

• Load a roll of label and follow the instructions as following and then press the 

feed button to resume printing. 

. 

1. Insert a 1” label spindle into a paper roll 

2. Open the printer’s top cover by releasing the green top cover open levers 

located on each side of the printer and lifting the top cover. A top cover 

support at the rear of the printer will hold the printer top cover open. 

3. Place a roll of paper onto the center of the paper roll mount. 

4. Feed the paper, printing side face up, through the Teflon bar and the label 

guide and pass over the platen. 

5. Adjust the green center-biased label guides in or out so they are slightly 

touch the edges of the label backing. 

6. To close the printer top cover, lift the cover slightly and pull the top cover 

support forward toward the front of the printer. Close the printer top cover 

slowly and make sure the cover locks latch securely. 

Ribbon runs out: 

• Load a roll of ribbon and follow the instructions as following and then press


the feed button to resume printing. 

1. Push down on the ribbon access window to unlock and open the cover 

2. Place a paper core on a ribbon rewind spindle. 

3. Mount the ribbon rewind paper core on the front hubs. 

4. Install a ribbon on the ribbon supply spindle. 

5. Mount the ribbon supply spindle on the rear hubs. 

6. Attach the ribbon leader to the ribbon rewind paper core. 

7. Rotate the ribbon rewind paper core until the ribbon leader is thoroughly, 

firmly encompassed by the black section of the ribbon. 

8. Close the ribbon access window. 

Ribbon sensor or ribbon rewind encoder error 

• Remove the ribbon, close the ribbon mechanism then turn off/on the printer 

power. The printer will be switched to thermal direct mode automatically. 

If the printer LED is still on red blink, please check the following: 

A. Is a paper core installed on the ribbon rewind spindle? 

B. Is ribbon installed correct along the ribbon path? 

C. Is the ribbon too transparent? 

D. Is the rib of the ribbon spindle is broken? 

E. Is the ribbon gear broken or worn? 

F. Turn off printer power. Rewind the ribbon spindle by hand. Does the 

spindle rewind smoothly by hand? If the ribbon spindle doesn’t rewind 

smoothly, please replace the ribbon mechanism. 

G. Is the DC motor broken? 

H. Is the ribbon end sensor broken? 

Measure the current of pin2 of JP19. If the ribbon detects the ribbon, it 

should be 5V DC; otherwise, it should be 0V DC. 

I. Is the DC motor encoder sensor broken? 

Measure the current of pin2 of JP9. When sensor detects the gap of 

encoder, it is 5V DC; otherwise it should be 0V DC. 

Check if there is any black lubricant oil filled between gaps, which may 

cause error. 

J. Check the DC motor driver IC (U13) on the main board. If it can function 

all right, please replace the main board. 

Paper sensor error 

Please check the following items: 

A. Is label installed correctly? Please refer to previous 4. The LED is on red 

blinking – Label runs out to load a roll of label and then press the feed button 

81


to resume printing. 

B. Is there any label stuck on the label sensor? Is there any pre-printed logo on 

the label? Please refer to 5.2 Initialization to reset the system. 

If the pre-printed logo or text influences the auto gap calibration function, please 

calibrate the gap sensor with proper setting by try and error. Example: 

C:\>MODE COM1 96,N,8,1 

C:\>COPY CON COM1 

SET GAP 1 < Z> 

Main board, gap sensor or black sensor failure. 

• Measure the current of pin3 of Q8. It is 5V DC when the label is detected and 

0V DC for gap. If the voltage is not correct as above mentioned, the U23 ,CPU 

(U1) or gap sensor may be broken. Please change the gap sensor receiver 

first because the receiver sensor failure rate is higher then the transmitter 

sensor. 

5. The printer setting runs error. 

Printer setting runs error: 

Refer to 5.2 Initialization to reset the system. 

6. Continuous feeding labels 

• The printer setting may go wrong. Please do the “Initialization” and “Gap and 

Black Mark Sensor Calibration”. (Refer to 5.2 and 5.3). 

7. No print on the label 

• Is the label or ribbon loaded correctly? Refer to No, 4 Label runs out and 

Ribbon runs out to load the paper or to load the ribbon. 

• Does the ribbon run out? 

• Is the thermal head connector connected? 

• Is the thermal head broken? Check it by printer self-test printout. 

• Is main PCB U21, U15, Q1 broken? 

8. Printer does not print. 

Printed by enclosed Label View XLT+ software 

• This may be driver conflict problem. Please remove all the drivers in the 

printer folder and then re-install the driver for your printer. 

Printed by printer command. 

• This problem is caused by incorrect syntax commands. TTP-245 / TTP-343 

82


series printer will ignore incorrect syntax commands. Please set the printer to 

the dump mode and make sure the printed command is identical to the 

commands sent from the application software. 

• The printer serial port setting is not correspondent to the PC’s setting 

Please do the configuration by the following commands. 

C:\>COPY CON LPT1 

SET COM1 96,N,8,1 

SET COM1 19,N,8,1 

Z 

C:\> 

9. Poor print quality 

• The head maybe dirty. Clean the thermal print head. 

• Adjust the print density setting. 

• Ribbon and paper media are not compatible. 

10. Stepping motor does not feed label 

• Does stepping motor function normally. 

• Are U11, and U12 (3717 driver IC) of main board broken? 

11. No 5V DC on main board. 

• Is switching power broken? 

• Is main board U3 broken? Please replace a new main board. 

12. Cutter functions abnormally. 

Cutter is not activated 

Cutter is broken or the main PCB is broken. If it still has problem after a new cutter 

replaced, the U14 (driver IC) or U5 IC on the main board may be broken. 

13. Black mark can’t be detected properly 

• Please check the position of the black mark, If it can be detected by the 

sensor. Is the width of black mark too thin to be detected? The suggested 

black mark width is 12 mm. 

• Does the sensor function properly? 

Measure the current of pin3 of Q9. It is 5VDC when the black mark is detected; 

otherwise it should be 0V DC. If the voltage is correct as above mentioned 

and the black mark still can’t be detected, CPU may have some problem. 

83


8. MAINTENANCE 

This session presents the clean tools and methods to maintain your printer. 

Use one or more of the following supplies that meets your needs: 

• Cleaning pens 

• Cleaning swabs 

• Lint-free cloth. 

The cleaning process is described as following 

Printer Part 

Method 

*Printer Head • Let the print head to cool for one minute 

• Use a cleaning pen to swab the print elements 

Platen Roller • Rotate the platen roller and wipe it thoroughly 

with 100% **ethanol and a cleaning swab, or 

lint-free cloth. 

Exterior • Wipe it with water-dampened cloth 

Interior • Brush or air blow 

* Do not touch printer head by hand. If you touch it careless, please use ethanol to 

clean it. 

**It’s industry alcohol. Please do not use regular alcohol, which may damage the printer 

head. 

84


9. PARTS LIST 

9.1 Cover 

Item Part No. Description Remark 

1 98-0250029-10LF TOP COVER ASS’Y includes: 

98-0250166-00LF 30-0250002-30LF*1 TOP COVER 

30-0250005-20LF*1 CLEAR TOP COVER 

36-0250009-00LF*2 PROTECTIVE FILM (FOR CLEAR TOP COVER) 

30-0250007-10LF*1 CLEAR WINDOW 

36-0250005-00LF*1 PROTECTIVE FILM (FOR CLEAR WINDOW) 

30-0250006-30LF*1 FEED BUTTON 

1set 

(for 

RMA) 

Spare 

parts 

36-0250003-00LF*2 LATCH FOR RIBBON ACCESS WINDOW 

2 30-0250001-30LF LOWER COVER 

3 30-0250008-30LF MEMORY CARD COVER 

4 37-1403020-31LF SCREW / TP 3 * 20 (For memory card cover) 

37-1403020-34LF 

1 pc. 

5 37-1402608-31LF SCREW / TP2.6*8 (For lower cover & hinge holders) 

37-1402608-34LF 

2 pcs. 

6 37-1403010-34LF SCREW TP3*10 (For lower cover to fix lower inner 

cover front side) 

4 pcs 

7 37-1403024-34LF SCREW TP3*24 (For lower cover to fix lower inner 

cover rear side) 

2 pcs 

8 98-0250013-00 FEED BUTTON ASS’Y 

98-0250013-10LF 

9 37-1403006-34LF SCREW TP3*6 (For feed button) 2 pcs 

10 36-0250003-00LF LATCH FOR RIBBON ACCESS WINDOW 2 pcs 2% 

11 37-1403020-31LF SCREW / TP3*20 (For top cover & top inner cover) 

37-1403020-34LF 

6 pcs 

12 30-0250026-30LF FRONT PANEL (standard) 

13 98-0250123-20LF MAIN BOARD ASS’Y 5% 

98-0250123-24LF MAIN BOARD ASS’Y 

(Main Board + RTC) 

Factory 

Option 

85


9.1 Cover drawing 

86


9.2 Main Board 


Spare 

parts 

1 98-0250123-20LF MAIN BOARD ASS’Y 5% 

98-0250123-24LF MAIN BOARD ASS’Y 

(Main Board + RTC) 

Factory 

Option 

2 80-PBL3717-00LF DRIVER IC (For stepping motor) U11,U12, 2% 

3 80-PBL3717-00LF DRIVER IC (For DC motor) U13 1% 

4 

80-UDN3952-00 CUTTER DRIVER IC A3952SB (Non-RoHS) U14 

80-A3953SB-00LF CUTTER DRIVER IC A3953SB (RoHS) Option 

2% 

98-0500026-10LF 2MB MEMORY CARD 

Option 


Option 

5 


Option 


Option 

6 63-04PSS01-00LF POWER SWITCH 

7 37-1503008-74LF 

8 37-1403006-34LF 

SCREW / M3*8 + WASHER (For Main board 

& ground wire) 

SCREW / TP3*6 (For Main board & lower 

cover) 

1 pc 

3 pcs 

87


9.2 Main Board drawing 

88


9.3 Top Inner Cover 


1 

TOP INNER COVER ASSY includes 1 set (for 

30-0250004-90LF Top inner cover*1 RMA) 

30-0250004-A0LF 

30-0250023-90LF Top cover support*1 

37-1503012-34LF Screw for top inner cover*1 

37-4000030-04LF Nut for top cover support*1 

30-0250004-80 32-0250013-00LF Tph ground plate*1 

98-0250118-00LF 37-1403006-34LF Screw for tph ground plate*1 

Spare 

parts 

3% 

36-0250012-00LF Media loading instruction label *1 

36-0500011-00LF High temp.warning label *2 

36-0250010-10LF Non-reflective label*1 

36-0500014-00LF Adhesive backed mount*3 

36-0500015-00 Cable tie*2 

36-0130043-00LF 

2 98-0250019-00 

98-0250019-10LF HEAD OPEN MICRO SWITCH ASS'Y 1% 

3 32-0500021-00LF HEAD OPEN MICRO SWITCH FIXING 

PLATE 

4 70-52B2604-10LF PRINT HEAD HARNESS 1 pcs 

5 98-0250128-00LF TPH MODULE ASS’Y for 203 DPI 3% 

98-0270032-00LF TPH MODULE ASS’Y for 300 DPI 3% 

6 32-0250013-00LF GROUND PLATE FOR TPH 

7 37-1403020-31LF 

37-1403020-34LF 

SCREW / TP3*20 (For Top cover & top inner 

cover) 

8 30-0250023-90LF TOP COVER SUPPORT 

9 

10 

37-4000030-04LF 

37-1503012-34LF 

NUT / M3 (For top cover support & top inner 

cover) 

SCREW / M3*12 (For top cover support & 

top inner cover) 

6 pcs 

1 pcs 

1 pcs 

11 98-0250020-10LF RIBBON END SENSOR PCB ASS’Y 1% 

12 37-1402005-34LF SCREW / TP2*5 (For Ribbon end sensor 

PCB ASS’Y & top inner cover) 

13 37-1403006-34LF SCREW / TP3*6 (For head open micro 

switch fixing plate & head open micro switch 

2 pcs 

2 pcs 

89


Ass’y & top inner cover) 

14 37-1403006-34LF SCREW / TP3*6 (For ground plate for TPH) 1 pc 

15 98-0250004-10LF RIBBON BASE ASS’Y / RIBBON NEAR 

END SENSOR PCB ASS’Y 

16 30-0250045-10LF TPH PLASTIC BRACKET/ L 1 pc 

17 30-0250046-00LF TPH PLASTIC BRACKET/ R 1 pc 

90


9.3 Top Inner Cover drawing 

91


9.4 Ribbon Mechanism Assembly 


Spare 

parts 

1 98-0250031-10LF RIBBON BASE ASS’Y 

98-0250031-20LF 

2 98-0250018-10LF RIBBON NEAR END SENSOR ASS’Y 

3 98-0130019-10LF RIBBON SUPPLY SPINDLE ASS’Y 1% 

4 65-0010009-00LF DC MOTOR 1% 

5 32-0250011-00LF DC MOTOR FIXING PLATE 

6 30-0250018-00LF DOUBLE SPUR GEAR 10/68T 

7 30-0250019-00LF DOUBLE SPUR GEAR 12/58T 

8 32-0250010-00 GEAR FIXING PLATE 

32-0250010-10LF 

9 37-1403008-34LF SCREW TP3*8 (For DC motor fixing plate 4 pcs 

& Gear fixing plate) 

10 37-1502604-34LF SCREW M2.6*4 (For DC motor & Motor 3 pcs 

fixing plate) 

11 37-1502003-34LF SCREW M2*3 (For Ribbon near end 2 pcs 

sensor ASS’Y and Gear fixing plate) 

12 37-1503008-84LF SCREW + WASHER / M3*8 

4 pcs 

(For Ribbon base ASS’Y and top inner 

cover) 

13 37-1403008-34LF SCREW TP3*8 (For ribbon base & DC 

motor fixing plate & ground wire) 

3 pcs 

92


9.4 Ribbon Mechanism Assembly drawing 

93


9.5.1 Lower Inner Cover 


1 30-0250003-70 LOWER INNER COVER ASSY includes 1 set (for 

98-0250161-00LF 30-0250003-80LF Lower inner cover*1 RMA) 

36-0250016-00LF Top cover operation name plate *1 

36-0130043-00LF Cable tie*2 

36-0500014-00LF Adhesive backed mount*2 

Spare 

parts 

1% 

36-0250008-00LF Transparent plastic sensor cover *1 

36-0250023-00LF Rubber plug*1 

37-1402606-34LF Screw*1 

2 32-0250028-00LF PEELER BAR(20 degree) 

3 98-0250115-00LF PLATEN ASS’Y (TTP-245/Gray) 2% 

98-0500009-00LF PLATEN ASS’Y (TTP-343/Black) 

4 37-1401705-14LF SCREW / TP1.7*5 (To fix the rear paper guide 2 pcs. 

& fixing plate & lower inner cover) 

5 30-0500024-00LF REAR PAPER GUIDE 2 pcs. 

6 32-0500015-00LF REAR PAPER GUIDE FIXING PLATE 2 pcs. 

7 30-0250009-20LF HINGE HOLDER 

8 30-0250010-20LF HINGE HOLDER 

9 37-1402608-31LF SCREW / TP 2.6 * 8 (For lower inner cover & 6 pcs. 

37-1402608-34LF the hinge holders) 

10 30-0250021-00LF TEFLON TUBE 

11 32-0250014-00LF TEFLON TUBE SHAFT 

12 

SCREW TP3*8 (For Teflon tube shaft & lower 2 pcs 

37-1403008-34LF 

inner cover) 

13 

DUST PREVENTION PLATE 

36-0250008-00LF 

(L75.6*W12.6*T0.3) FOR GAP SENSOR 

14 98-0250066-00LF TOP COVER SUPPORT DAMPER MODULE 

1% 

ASS'Y 

15 

SCREW 3*15 BLACK (For top cover damper 1 pc 

37-1403015-32LF 

module Ass’y) 

16 

SCREW TP3*8 (For top cover damper module 3 pcs 

37-1403008-34LF 

Ass’y) 

94


9.5.1 Lower Inner Cover drawing 

95


9.5.2 Lower Inner Cover 


Spare 

parts 

1 32-0250003-10LF GROUND PLATE FOR PLATEN 

2 32-0250004-00LF GROUND PLATE FOR PEELER BAR 

3 37-1403006-34LF SCREW / TP3*6 (connect ground plate for 2 pcs 

platen, ground plate for peeler bar, M3 

ground wire(L155mm) & lower inner cover) 

4 36-0250002-10LF PLASTIC LAMINATE (BLACK) 

5 37-1403006-74LF SCREW + WASHER / TP3*6 (For Plastic 4 pcs 

laminate & lower inner cover) 

6 37-1402608-31LF SCREW / TP 2.6 * 8 (For Label guide rack 2 pcs 

37-1402608-34LF fixing plate & lower inner cover) 

7 30-0250014-00LF LABEL GUIDE RACK (RIGHT) SENSOR 

COVER 

8 37-1401706-24LF SCREW TP1.7*6 (For Label guide rack / 2 pcs 

right & Gap sensor (Receiver) PCB ASS’Y & 

Label guide rack (right) sensor cover) 

9 30-0250012-00LF LABEL GUIDE RACK (RIGHT) 

10 30-0250013-00LF LABEL GUIDE RACK (LEFT) 

11 98-0250023-10LF GAP SENSOR (TRANSMITTER) PCB 

1% 

ASS’Y 

12 37-1401704-14LF SCREW / TP1.7*4 (For label guide rack 3 pcs 

(right) & gap sensor (transmitter) PCB 

ASS’Y x 2 pcs, For black mark sensor 

ASS’Y & black mark sensor fixing plate & 

lower inner cover x 1pc 

13 98-0250024-10LF GAP SENSOR (RECEIVER) PCB ASS’Y 1% 

14 30-0130034-00LF SPUR GEAR / 10T 1% 

15 30-0250025-40LF LABEL GUIDE RACK FIXING PLATE 

16 32-0500005-00LF BLACK MARK SENSOR FIXING PLATE 

17 98-0250021-00LF BLACK MARK SENSOR ASS’Y 

18 98-0250022-00LF STEPPING MOTOR ASS’Y (Including 

stepping motor) 

19 37-1403008-34LF SCREW / TP3*8 (For stepping motor ASS’Y 

& lower inner cover) 

8 pcs 

96


9.5.2 Lower Inner Cover drawing 

97


9.6 Stepping Motor Assembly 


Spare 

parts 

1 98-0250022-00LF STEPPING MOTOR ASS’Y for 203 DPI 

(Including stepping motor) 

2 98-0270001-00LF STEPPING MOTOR ASS’Y for 300 DPI 

(Including stepping motor) 

3 65-0030006-00LF STEPPING MOTOR WITH 15 GEAR (For 

1% 

203 DPI) 

4 65-0010010-00LF STEPPING MOTOR WITH 15 GEAR (For 

1% 

300 DPI) 

5 32-0250006-10LF STEPPING MOTOR BRACKET / METAL 

(For 203 DPI) 

6 32-0270001-00LF STEPPING MOTOR BRACKET / METAL 

(For 300 DPI ) 

7 30-0500014-10LF SPUR GEAR / 16T-48T 1 pcs. 

8 30-0500013-10LF SPUR GEAR / 44T 1 pcs. 

9 30-0270001-00LF SPUR GEAR 20T / 30T (For 300 DPI 1 pcs 

only) 

10 32-0500019-00LF GEAR SHAFT 2 pcs (for 

203 DPI) 

3 pcs (for 

300 DPI. 

11 37-1503006-G4LF SCREW M3*6 (For Stepping motor 5 pcs 

bracket & gear cover) 

12 32-0500009-10LF TORSION SPRING 

13 32-0500008-10LF TORSION SPRING 

14 37-3450110-04LF E- RING / 5mm (inside shaft for hook) 2 pcs. 

15 37-3440090-04LF E- RING / 4mm (outside shaft for hook) 2 pcs. 

16 37-1503006-74LF SCREW + WASHER / M3*6 

2 pcs. 

(To fix stepping motor bracket & stepping 

motor) 

17 32-0250009-10LF SHAFT FOR TOP COVER OPEN LEVER 

18 30-0250030-30LF TOP COVER OPEN LEVER 1% 

19 30-0250029-30LF TOP COVER OPEN LEVER 1% 

20 30-0250017-10LF GEAR COVER 

21 30-0250011-10LF TOP COVER OPEN LEVER FIXTURE 

98


9.6 Stepping Motor Assembly drawing 

99


9.7 Option and accessories 


Spare 

parts 

1 62-0010017-03LF POWER SUPPLY/CEC Standard 1% 

2 72-0010017-00 POWER CORD/AU 

Option 

72-0010017-10LF 

72-0010018-00LF POWER CORD/UK Option 

72-0010019-00LF POWER CORD/US Standard 

72-0010020-00LF POWER CORD/EU 90D Option 

72-0010021-00LF POWER CORD/EU 180D Option 

72-0010032-00LF POWER CORD/CN Option 

72-0010033-00LF POWER CORD/IT Option 

72-0010039-00LF POWER CORD/JP Option 

3 72-0010035-00 PARALLEL PORT CABLE 

Standard 

72-0010001-00LF 

72-0010031-00LF USB CABLE Option 

72-0050002-01LF RS-232 CABLE Option 

4 98-0500033-00LF 1” LABEL SPINDLE ASS'Y Standard 

5 30-0500033-00 1” LABEL SPINDLE 1 pc 

30-0500033-20LF 

6 30-0500034-00LF FIXED TAB 2 pcs 

7 30-0500030-00LF 1.5” CORE ADAPTER 2 pcs 

98-1000008-01LF External Ethernet print server /US/CEC Option 

(Parallel 

8 

98-1000009-00LF External Ethernet print server /EU 

Port) 

98-1000019-00LF External Ethernet print server /US Option 

98-1000020-00LF External Ethernet print server /EU 

(USB 

Port) 

9 98-0250064-00LF 

EXTERNAL ROLL MOUNT ASS’Y WITH 3” Option 

CORE LABEL ROLLER 

10 98-0250065-00LF EXTERNAL LABEL ROLL MOUNT ASS’Y Option 

11 98-0500022-00LF 3” CORE LABEL ROLLER Option 

12 

98-0250014-00 

Option 

PEEL OFF ASS’Y 

98-0250014-01LF 

13 

98-0250041-00 FULL CUT CUTTER ASS’Y 

Option 

98-0250130-00LF (includes motor driver IC) 

100


98-0250042-00 PARTIAL CUT CUTTER ASS’Y 

Option 

98-0250131-00LF (includes motor driver IC) 

14 

98-1000004-00 

Option 

EXTERNAL WIRELESS PRINT SERVER /US 

98-1000011-00LF 

98-1000005-00 

EXTERNAL WIRELESS PRINT SERVER /EU 

98-1000012-00LF 

15 98-0500032-00LF REAL TIME CLOCK ASS'Y 

Factory 

option 

98-0500026-10LF 2MB MEMORY CARD Option 

16 




98-0250134-00LF INTERNAL PRINT SERVER ASS’Y (T) Option 

17 

98-0250135-00LF INTERNAL PRINT SERVER ASS’Y (C) Option 

98-0250136-00LF 

INTERNAL WIRELESS PRINT SERVER Option 

ASS’Y (C) 

18 49-OKPE156-20LF BUZZER 

Factory 

option 

101


9.7 Option and accessories drawing 

102


Update History 

Date Content Editor 

2006/4/10 1. Modify to RoHS version. Camille Pao 

2006/7/4 1. Modify 3.18 section: Install internal 

Ethernet module (Option). 

Camille Pao 

2006/7/20 1.Modify 9.7 item 14 part No. Camille Pao 

2006/7/28 1. Modify 9.5.1 item 1 part No. Camille Pao 

2006/8/28 1. Add 9.7 item 8 : External Ethernet print 

server(Z) 

2006/9/8 1. Modify MAIN BOARD ASS’Y from -10LF 

to -20LF 

2006/9/12 1. Modify the TOP COVER OPEN LEVER 

from -00LF to -20LF 

2006/9/25 1. Modify power on utilities section. 

2. Modify LED and button operation section. 

2006/9/26 1. Modify the top inner cover from -80LF to 

-90LF 

2006/11/9 1. Modify the top inner cover from -90LF to 

-A0LF 

2006/11/30 1. Modify 3.18 section: Install internal 

Ethernet module (Option). 

2006/12/6 1. Add 9.5.1 item 3 : PLATEN ASS’Y 

(TTP-343/Black) 

2007/1/3 1. Modify the screw from 37-1402608-31LF 

to -34LF 

1. Modify the screw from 37-1403020-31LF 

to -34LF 

Camille Pao 

Camille Pao 

Camille Pao 

Camille Pao 

Camille Pao 

Camille Pao 

Camille Pao 

Camille Pao 

Camille Pao 

2007/1/4 1. Cancel the internal print server ass'y Camille Pao 

2007/1/16 1. Add the power cord/JP, USB cable and 

RS-232 cable part no. 

2. Add the cutter driver IC A3952SB 

(non-RoHS) part no. 

2007/3/9 1. Modify 9.7 item 8 : External Ethernet print 

server(C) 

Camille Pao 

Camille Pao 

2007/3/19 1.Add the MAIN BOARD ASS’Y (Main Camille Pao 

103


Board + RTC) part no. 

2007/3/26 1. Modify 9.2 item 2 and 3 description Camille Pao 

2007/4/14 1. Update TSC e-mail address Camille Pao 

2007/5/11 1. Modify 9.6 item 18/19 : TOP COVER Camille Pao 

OPEN LEVER part no. 

2007/8/1 1. Company information update Camille Pao 

2007/11/8 1. Modify RIBBON BASE ASS’Y part no. Camille Pao 

2007/11/13 1. Add TPH PLASTIC BRACKET part no. Camille Pao 

2007/12/7 1. Modify power supply and external 

Camille Pao 

Ethernet print server parts no./CEC 

2008/1/24 1. Revoke part number for 

Camille pao 

98-1000017-00LF External Ethernet print 

server (Z)/US and 98-1000018-00LF 

External Ethernet print server (Z)/EU 

[parallel port] 

2. Revise description for 98-1000008-01LF 

External Ethernet print server 

(C)/US/CEC, 98-1000009-00LF External 

Ethernet print server (C)/EU, 

98-1000019-00LF External Ethernet print 

server (Z)/US, 98-1000020-00LF External 

Ethernet print server (Z)/EU, 

98-1000011-00LF EXTERNAL WIRELESS 

PRINT SERVER /US(C) and 

98-1000012-00LF EXTERNAL WIRELESS 

PRINT SERVER /EU(C) 

2008/5/14 

1. Revise the black mark sensor assembly Camille Pao 

part no. 

2011/1/25 Modify TSC address Camille Pao 

104

TSC Auto ID Technology Co., Ltd. 

Corporate Headquarters 

Li Ze Plant 

9F., No.95, Minquan Rd., Xindian Dist., No.35, Sec. 2, Ligong 1st Rd., Wujie Township, 

New Taipei City 23141, Taiwan (R.O.C.) Yilan County 26841, Taiwan (R.O.C.) 

TEL: +886-2-2218-6789 TEL: +886-3-990-6677 

FAX: +886-2-2218-5678 FAX: +886-3-990-5577 

Web site: www.tscprinters.com 

E-mail: printer_sales@tscprinters.com 

tech_support@tscprinters.com

TTP-245/343 - TSC

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