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23 

TTP-243 Bar Code Printer 
Service Manua

3.8 Thermal Head Drive/ Protection and History Control Circuit 

 

VH

1

GND

2

VH

3

GND

4

VH

5

GND

6

/LAT

7

DI2

8

DI1

9

NC

10

STB4

11

STB3

12

STB2

13

STB1

14

TM

15

TM

16

DO1

17

VDD

18

CLK

19

DO2

20

VH

21

GND

22

VH

23

GND

24

VH

25

GND

26

JP9

ROHM

VH

1

VH

2

VH

3

GND

4

GND

5

GND

6

GND

7

VCC

8

TM

9

TM

10

DO

11

NC

12

STB2

13

STB1

14

CLK

15

/LAT

16

NC

17

DI

18

JP10

KYOCERA

DI

/LAT

CLK

VCC

VCC

C20
0.1u

C21
0.1u

R37
20K

R38
51

Z1

4.7V

A

1

B

2

CLR

3

Q

4

Q

13

Cext

14

RCext

15

U12A

74HC123

R39
150K

VCC

12

13

U5F

74HC04

PH_HEAT

8

9

10

U9C

74HC08

11

12

13

U9D

74HC08

HISTORY

Q1

HSC945

Q2

2SJ177

Q3

2SJ177

Q4

2SJ177

Q5

2SJ177

VDD

R21

10K

R42
10

R22
10K

R43
1K

PH

STROBE1

STROBE2

STROBE1

STROBE2

TM

R44
3.9K

R48 1K

Vdet

 

1

 

2

 

3

J1

200DPI

STROBE1

300DPI

 

1

 

2

 

3

200DPI

300DPI

PH_GND 

是印字頭系統接地部份

DIGITAL GND

是數位系統部份接地

PVDD

是印字頭部份電源

DIGITAL GND

8

9

U5D

74HC04

1

2

3

U9A

74HC08

/RESET

VH_POWER

VH_POWER

C22
10u\TANT

Z2

IN4745\16V

VH_POWER MAX CURRENT IS 18A/1KHz

Analog Ground

Analog Ground

Analog Ground

Analog Ground

Analog Ground

C79

300p

C80
220p

MOTOR_GND

 

Fig. 3.9 Thermal Head Drive/ Protection and History Control Circuit 

This is the thermal head drive/protection and history control circuit. CLK and /LAT 
connected to thermal head control clock and data latch respectively. PH controls the 
DC24V voltage of the thermal head. When PH is “LOW”, the thermal head will be 
separated from 24V (V

DD

). PH_HEAT determines whether to heat the thermal head or 

not. HISTORY determines the history control is available or not. DI sends the printer 
data to the print head. TM is the temperature/voltage sensor for thermal head. Vdet 
feeds back the voltage and compensates the heat time for voltage accuracy when 
printing.  

 

Содержание TDP-243 Series

Страница 1: ...TTP TDP 243 342 SERVICE MANUAL THERMAL TRANSFER DIRECT THERMAL BAR CODE PRINTER...

Страница 2: ...2 1 Types of Paper 9 2 2 Specifications 9 2 3 Ribbon Sizes and Shapes 11 3 ELECTRONICS 12 3 1 Circuit Description 12 3 2 MCU Pin Description 15 3 3 Reset Circuit 17 3 4 Memory System 17 3 5 Connector...

Страница 3: ...Fabric Replacement 40 4 6 Stepping Motor Replacement 42 4 7 Black Mark Sensor Gap Sensor Receiver Replacement 43 4 8 Ribbon Sensor Receiver Replacement 44 4 9 Ribbon Sensor Transmitter Gap Sensor Tran...

Страница 4: ...o a personal computer or an optional LCD keyboard to execute the programs downloaded in the printer s memory The printer is equipped with the following standard devices black mark sensor peel off modu...

Страница 5: ...rinter Service Manual 1 3 Overview 1 3 1 Front View Fig 1 1 Front View of TTP 243 Note The one difference between TTP model and TDP model is the ribbon mechanism Front Panel Cover Release Button Top C...

Страница 6: ...3 TTP 243 Bar Code Printer Service Manual 1 3 2 Rear View Fig 1 2 Rear view of TTP 243 DC Power Jack RS 232 Interface Centronics Interface Label Entrance External Mount Use Power Switch...

Страница 7: ...me Clock Comes with self peeling function Buzzer provided to warn of possible errors Label stock and thermal transfer ribbon are easy to install Internal label print counter Self test and hex dump mod...

Страница 8: ...Printer Service Manual RS 232 Interface Pin Configuration Host Function 9 Pin 25 Pin 9 Pin Printer Function 1 5V RxD 2 3 2 TxD TxD 3 2 3 RxD DTR 4 20 4 DSR GND 5 7 5 GND DSR 6 6 6 RDY RTS 7 4 7 N C C...

Страница 9: ...284mm Label Ticket Width 25mm 103mm Effective Print Width 23mm 101mm No Print Area 1mm 1 6 Available Bar Codes Code 39 Code 93 Code 128 UCC Code 128 Subsets A B and C Codabar Interleaved 2 of 5 EAN 8...

Страница 10: ...position of the next label The sensor is mounted 4 mm off the center line of the main mechanism In case of Label 2 Black Mark Sensor The black mark sensor locates the position of label by emitting inf...

Страница 11: ...e only one position for the sensor Once the sensor position is agreed upon it can not be changed afterwards 3 Ribbon End Sensor The sensor detects the end portion of the ribbon The ribbon end must be...

Страница 12: ...meter Max 4 3 110mm Max Roll Diameter 1 core External roll diameter Max 8 4 214mm Roll Up Method Print surface wound outside as standard Paper Core ID 25 7 0 3mm Note 1 The width and thickness quoted...

Страница 13: ...10 TTP 243 Bar Code Printer Service Manual...

Страница 14: ...335 5mm long End tape Polyester film transparent 250 5mm long Max ribbon OD 67mm Winding method Ink surface to be wound outside Note The maximum length of ribbon depends on its thickness and core out...

Страница 15: ...MA7 64 A6 MA6 65 A5 MA5 66 A4 MA4 67 A3 MA3 68 A2 MA2 69 A1 MA1 70 A0 MA0 71 P97 DMAREQ3 72 P96 DMAACK3 73 P94 DMAACK2 75 P92 77 P95 DMAREQ2 74 P93 DMAREQ1 76 P91 DMAREQ0 78 P90 DMAACK0 79 P87 TXD1 80...

Страница 16: ...13 TTP 243 Bar Code Printer Service Manual Motor System Communication Port Real Time Clock Memory Decoder System Print Head Cutter System Memory System External Memory Connector Power System...

Страница 17: ...14 TTP 243 Bar Code Printer Service Manual Fig 3 2 System Block of PCB...

Страница 18: ...is pin is L BYTE Bus width selection input Input In memory expansion mode or microprocessor mode this pin determines whether the external data bus is 8 bit width or 16 bit width The width is 16 bits f...

Страница 19: ...I O It has basically the same function as port P4 In addition it provides the timer A2 timer A3 timer A4 I O pins and TimeB0 and TimeB1 input pins P60 P67 I O port P6 I O This port is used for 8 bit I...

Страница 20: ...19 AD6 20 AD7 21 CE 22 A10 23 OE 24 A11 25 A9 26 A8 27 A13 28 A14 29 A17 30 WE 31 VCC 32 U16 29C040 A 0 18 MA 0 9 DO 0 7 MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 DO0 DO1 DO2 DO3 DO4 DO5 DO6 DO7 A8 A9 A...

Страница 21: ...DO0 DO1 DO2 DO3 DO4 DO5 DO6 DO7 5V 24V 5V 5V 5V 5V 5V 5V P65 CUTTER P53 PH_DETECT P45 P46 P47 P72 P60 P62 P63 P57 DC_MOTOR_A DC_MOTOR_B P64 GAP_EMITTER Fig 3 5 Connector Circuit Diagram P45 P47 are ou...

Страница 22: ...is in right position normally at high level JP8 the connector which connects to the external memory module CUTTER the control pin of the CUTTER system DC_MOTOR_A the control pin of the DC MOTOR system...

Страница 23: ...DO3 DO4 DO5 DO6 DO7 DO 0 7 DO 0 7 5V DS RTC AS R W BZ1 R50 5 6K C66 0 1u RES 5V BUZZER Fig 3 6 Real Time Clock Circuit This is a real time clock circuit MCU will read the date time and write the data...

Страница 24: ...MA0 DO 0 7 ALE ROM2 CENTRONIC ROM11 ROM12 Fig 3 7 Decode Circuit This is the decode circuit which calculates memory map U3 is used to latch addresses from DO0 to DO7 The main function of U8 and U10 a...

Страница 25: ...H ROM EXTERNAL ROM3 MEMORY CARD RTC ADDRESS PORT RTC DATA PORT CENTRONIC PORT PARALLEL COMMUNICATION 400001H 400000H 380000H 2FFFFFH 200000H FLASH ROM EXTERNAL ROM2 MEMORY CARD FLASH ROM EXTERNAL ROM1...

Страница 26: ...et 1 2 3 J1 200DPI STROBE1 300DPI 1 2 3 200DPI 300DPI PH_GND DIGITAL GND PVDD DIGITAL GND 8 9 U5D 74HC04 1 2 3 U9A 74HC08 RESET VH_POWER VH_POWER C22 10u TANT Z2 IN4745 16V VH_POWER MAX CURRENT IS 18A...

Страница 27: ...T B1 K 24V C10 0 1u C6 1500pF C9 1000u 35V SW1 SW SPDT R56 470 2W L14 CHOKE D3 SR505 C82 0 01u 0 01u L26 1 2 3 4 L4 COMM_CHOKE Fig 3 10 24V 5V Converter Circuit Figure 3 10 is the DC TO DC DC24V to DC...

Страница 28: ...17 1Y1 18 1Y2 16 1Y3 14 1Y4 12 2Y1 9 2Y2 7 2Y3 5 2Y4 3 1G 1 2G 19 U6 74LS244 1 2 3 4 JP12 STEP MOTOR L31 BEAD L30 BEAD L29 BEAD L28 BEAD L27 BEAD L7 BEAD C78 0 01uF C77 0 01uF C73 0 01u C74 0 01u C76...

Страница 29: ...26 TTP 243 Bar Code Printer Service Manual The power of DC motor is on when DCM pin is at LOW level PHASE3 determines the DC motor run direction forward or backward...

Страница 30: ...R34 100 R35 100 R36 100 PE ERROR SELECT VCC DO 0 7 DO 0 7 DO0 DO1 DO2 DO3 DO4 DO5 DO6 DO7 CENTRONIC INT C71 0 1u CGND CGND CGND CGND DIGITAL GND DIGITAL GND 5 6 U11C 74LS14 8 9 U11D 74LS14 10 11 U11E...

Страница 31: ...2003 3 14 9 GND 8 U20C 2003 4 13 9 GND 8 U20D 2003 C30 10u TANT 1 2 3 4 5 6 7 JP3 CUTTER PEEL PEEL 5V D16 DSP D17 DSP CUTTER Fig 3 13 Cutter Drive Circuit This is the cutter drive circuit The RESET si...

Страница 32: ...2 Remove the power cord and RS 232 and or parallel port cable 3 Open the top cover of the printer 4 Remove the printer front panel Fig 3 14 Remove the front cover in the direction of the arrows 5 Remo...

Страница 33: ...ff sensor connector Fig 3 16 Cable tie and peel off sensor connector 7 Remove the screws on the lower left and lower right corners of main mechanism Fig 3 17 Remove the screws in the lower left lower...

Страница 34: ...chanism about 5 mm in the label feed direction 10 Take out the internal label roll mount and remove the connector Fig 3 19 Take out the internal label roll mount and remove the connector 11 Remove the...

Страница 35: ...ansmit sensor connector JP6 DC motor and encoder connector JP7 TPH head up switch connector JP8 Memory cartridge connector JP9 TPH connector JP12 Stepping motor connector 13 Take out the mechanism 14...

Страница 36: ...f sensor connector 7 Remove the screw on the PCB of peel off and cutter connector 8 Remove the screws in the lower left lower right corners of main mechanism 9 Remove all four screws of the internal l...

Страница 37: ...t work please check that the software or program has been switched to the cutter mode If the cutter still does not function please check the cutter driver IC make sure it is firmly inserted in the IC...

Страница 38: ...le tie and remove the peel off sensor connector Cf Fig 3 16 6 Remove the peel off sensor connector 7 Plug in the cutter connector 8 Insert the right and left side flange of cutter into the slot Fig 4...

Страница 39: ...le and power cord 3 Open the top cover 4 Remove the ribbon and label roll 5 Open the print carriage 6 Remove the screw at the top front center of the mechanism as shown Fig 4 2 The Print Head Screw 7...

Страница 40: ...f connector must be positioned upward Do not touch the elements of the print head Do not disassemble the print head 8 Tidy up the cable so that it does not protrude or interfere with the ribbon 9 Reas...

Страница 41: ...9 Remove all four screws of the internal label roll mount Cf Fig 3 18 10 Move the mechanism in the label feed direction about 5 mm 11 Take out the internal label roll mount and remove connector JP1 C...

Страница 42: ...to thermal transfer mode The multi meter is used to measure the voltage of Pin2 5V If the voltage changes continuously from 0 to 5 volts DC the encoder is in condition Otherwise please follow the ste...

Страница 43: ...inting quality Follow the steps below to replace the felt fabric 1 Follow the instructions in Section 4 3 to remove DC motor and DC motor fixture 2 Remove the E ring and washer on ribbon supply spindl...

Страница 44: ...41 TTP 243 Bar Code Printer Service Manual 6 Reassemble the removed parts in the reverse order of removal Fig 4 8 Front View of the Ribbon Supply Spindle...

Страница 45: ...in the lower left lower right corners of the main mechanism Cf Fig 3 17 9 Remove all four screws of the internal label roll mount Cf Fig 3 18 10 Move the mechanism in the label feed direction about 5...

Страница 46: ...e the printer front panel Cf Fig 3 14 5 Remove the two screws and the metal cover Cf Fig 3 15 6 Release the cable tie and remove the peel off sensor connector Cf Fig 3 16 7 Remove the screw on the PCB...

Страница 47: ...cutter connector 8 Remove the screws in the lower left lower right corners of the main mechanism Cf Fig 3 17 9 Remove all four screws of the internal label roll mount Cf Fig 3 18 10 Move the mechanis...

Страница 48: ...e The right side spring has a straight end when the left side spring has an end that is curved 90 degrees 16 The main mechanism is divided into upper mechanism and lower mechanism 17 The ribbon sensor...

Страница 49: ...ction 4 6 to separate the upper mechanism from the lower mechanism 2 The ribbon sensor transmitter is located in the center of the lower mechanism Fig 4 14 Ribbon Sensor Transmitter 3 Remove the two f...

Страница 50: ...crews of the internal label roll mount Cf Fig 3 18 10 Move the mechanism in the label feed direction about 5 mm 11 Take out the internal label roll mount and remove the connector Cf Fig 3 19 12 Remove...

Страница 51: ...ever arm and E ring 19 Remove the teflon tube and stripper rod Fig 4 18 20 Remove the E ring the right side and left side platen bushes Fig 4 19 21 Remove the stripper bar Fig 4 17 Printer Carriage Re...

Страница 52: ...18 Teflon tube and stripper rod Fig 4 19 Remove E ring and platen bush 22 Move the platen to the right of the mechanism 23 Replace the platen and reassemble the removed parts in the reverse order of...

Страница 53: ...ew 3x8 Memory Module Cover Push Button Box Ass y 1M Flash ROM installed with one of the following 5 fonts 16x16 Traditional Chinese Font Cartridge 24x24 Traditional Chinese Font Cartridge 16x16 24x24...

Страница 54: ...51 TTP 243 Bar Code Printer Service Manual TTP 243 Last Update 2003 2 18...

Страница 55: ...34 37 1203510 31 30 0180053 00 98 0180011 10 37 1502604 34 37 1201705 24 98 0180015 10 36 0180002 00 98 0182015 00 Ribbon Spindle Ass y Ribbon Mechanism Ass y Screw 3x5 Tap4 Round Black Screw 3x8 Scr...

Страница 56: ...53 TTP 243 Bar Code Printer Service Manual TTP 243 Last Update 2003 2 18 12...

Страница 57: ...0180030 10 37 1403008 34 37 1202612 22 37 1503006 34 37 1403015 32 37 1403508 52 98 0180012 00 37 1201705 24 72 0050003 00 64 0010011 00 Mechanism Upper Cover Ass y Screw 3x8 Screw 2 6x12 Tap4 Screw M...

Страница 58: ...55 TTP 243 Bar Code Printer Service Manual TTP 243 Last Update 2003 2 18...

Страница 59: ...Ass y Gap Sensor Right Offset 4mm from the center Mechanism Lower Cover Ass y Gap Sensor in the center PCB D Ass y Gap Ribbon Tx Sensor And Gap Sensor Right Offset 4mm from the center PCB D Ass y Gap...

Страница 60: ...57 TTP 243 Bar Code Printer Service Manual TTP 243 Last Update 2003 2 18...

Страница 61: ...r Service Manual Accessories Ref No Part No Description Remarks List Price 5 1 5 2 5 3 72 0010001 00 98 0180001 10 62 0130003 00 Parallel Port Cable External Label Roll Mount Ass y Power Adapter S TTP...

Страница 62: ...59 TTP 243 Bar Code Printer Service Manual TTP 243 Last Update 2003 2 18...

Страница 63: ...f the label Download Error The format of the downloaded file is incorrect There is not enough memory to store the file Stack Overflow Program contains too complex mathematical expressions Divide into...

Страница 64: ...the connection of serial port cable 5 On line indicator light does not to illuminate Check the DIP switch setting and reset the printer Check that power cord is properly connected 6 Error indicator r...

Страница 65: ...label length 3 Print internal settings 4 Initiate self test 5 Enter dump mode 5 5 Ram Clear Press the PAUSE and FEED button simultaneously for more than 3 seconds The printer will clear the memory an...

Страница 66: ...voltage should be 5 Vdc 2 When gap of the gear box is not detected by the DC motor encoder sensor the measured voltage should be 0 Vdc The DC motor encoder sensor is normal if the checking complies wi...

Страница 67: ...ltage should be 0 Vdc The black line sensor is normal if the checking complies with the two cases above Or else the black line sensor is out of order E Checking Peel Off Sensor Switch the multimeter t...

Страница 68: ...eater the usage of the printer the more frequent the cleaning 1 Turn the power off 2 Open the printer cover 3 Open the printer carriage by pulling up the release lever to the left of the front rubber...

Страница 69: ...TAIWAN SEMICONDUCTOR CO LTD 11F No 205 Sec 3 Beishin Rd Shindian City Taipei Taiwan R O C TEL 886 2 8913 1588 E mail printer mail2 ts com tw FAX 886 2 8913 1808 Web Site http www tscprinters com...

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