TSC TTP 246M User manual

TTP/TDP 248M/2410M

SERVICE

MANUAL

THERMAL TRANSFER / DIRECT THERMAL

BAR CODE PRINTER

TTP-248M/2410M Bar Code Printer

Service Manual

TABLE OF CONTENT

1. Foundamentals About the System ............................................................................. 1

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

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

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

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

1.3 Available Bar Codes.......................................................................................... 4

1.4 Text Specification .............................................................................................. 5

Specification of Fonts....................................................................................... 6

File Head of Font ( Fixed 32bytes ).................................................................. 6

VF1~4 .............................................................................................................. 7

BF3~4 VF3~4................................................................................................... 7

2. Supply Specifications ................................................................................................. 8

2.1 Types of Paper.................................................................................................. 8

2.2 Specification...................................................................................................... 8

2.3 Ribbon Specification ......................................................................................... 9

3. Circuit Description................................................................................................. 10

3.1 MCU.............................................................................................................. 10

3.2 MCU PIN Description ...................................................................................... 12

3.3 Reset Circuit.................................................................................................... 21

3.4 Memory System .............................................................................................. 22

3.5 Decoder Circuits.............................................................................................. 23

3.6 Memory Map ................................................................................................... 23

Area P2.......................................................................................................... 23

3.7 Firmware Address Map ................................................................................... 25

SDRAM Address Map.................................................................................... 26

3.8 Power Down Sensor........................................................................................ 27

3.9 Print Head ....................................................................................................... 28

3.10 Motor System Circuit..................................................................................... 29

3.11 Sensor Circuits .............................................................................................. 30

3.12 Serial Port Circuit .......................................................................................... 33

3.13 Parallel Port Circuit ....................................................................................... 34

3.14 Cutter Drive System ...................................................................................... 35

3.15 PIN Switch Circuits........................................................................................ 36

3.16 Connector Circuits......................................................................................... 36

3.17 Optional Items Circuits .................................................................................. 39

TTP-248M/2410M Bar Code Printer

Service Manual

4. Machanism............................................................................................................ 41

4.1 Remove the Covers and LCD Panel ............................................................... 41

4.2 Replacing the Mainboard ................................................................................ 45

4.3 Replacing the Power Supply Unit.................................................................... 47

4.4 Replacing the Ribbon Rewind Spindle ............................................................ 48

4.5 Replacing Ribbon Supply Spindle and Ribbon Near End Sensor ................... 51

4.6 Replacing Label Supply Spindle...................................................................... 53

4.7 Replacing Label Rewind Spindle..................................................................... 54

4.8 Replacing Platen ............................................................................................. 55

4.9 Replacing Motor.............................................................................................. 57

4.10 Replacing Print Head .................................................................................... 58

4.11 Replacing Print Head Pressure Adjustment Knob ......................................... 59

4.12 Replacing Gap/Black Mark Sensor ............................................................... 60

4.13 Replacing Ribbon End Sensor ...................................................................... 62

4.14 Replacing Print Head Lift Lever Sensor ........................................................ 63

5. Part Lists .................................................................................................................. 64

6. Troubleshooting........................................................................................................ 69

6.1 Troubleshooting............................................................................................... 69

6.2 Calibrate Gap/Black Mark Sensor ................................................................... 71

6.3 Self-test........................................................................................................... 71

6.4 DRAM Clear.................................................................................................... 72

6.5 Diagnosis Operation Procedure ...................................................................... 72

6.6 Cleaning Print Head ........................................................................................ 72

TTP-248M/2410M Bar Code Printer

Service Manual

1. FOUNDAMENTALS ABOUT THE SYSTEM

1.1Printer Overview

1.1.1 Front View

Fig. 1.1 Printer Front View

Aux. LED

LCD Display

Printer Cover

TTP-248M/2410M Bar Code Printer

Service Manual

1.1.2 Rear View

Fig. 1.2 Printer Rear View

1.2 Pinter Specification

Item Specification

Printing Mode Thermal transfer and direct thermal

Resolution 203 DPI

Max. Print Length 999 mm

Max. Print Width 104 mm

Print Speed Selectable speed of 4,6,8 inch per second

Environment

Temperature 5 ~40

Humidity 30 ~ 85 %

Temperature -10 ~ 60 OC

Humidity 20 ~ 95 %

External Label

Feed Opening

Aux. Buzzer

Centronics Port

RS-232C Port

Voltage Switch

Power Supply

Connector

TTP-248M/2410M Bar Code Printer

Service Manual

Ventilation Free air environment

Sensors Label gap (256-level), ribbon end (16-level), black

mark (256-level), carriage open, ribbon near end

Memory Flash Memory 2MB, DRAM 4MB and optional Flash

Interface RS-232C 56000bps ( Max.), Centronics

Cutter 116 mm width (Paper thickness up to 0.28 mm)

Power

100 VAC to 120 VAC, 200 VAC to 240 VAC

Switching mode power supply.

Input Frequency : 50Hz to 60Hz

Input Current : 4.0 Amps at max.

Inrush Current :

40 Amps max. (cold start) at 115 VAC input line

voltage.

80 Amps max. (cold start) at 230 VAC input line

voltage.

Electrical

CPU HITACH SH 7709A

TPH ROHM KF2004-GL41D 550Ω

Stepping Motor Mitsumi 24V 7.5 Degrees 4ΩJapan Servo KH56KM

Memory SDRAM, 1M×16Brt×2 7ns

Flash Memory: (512K×16Bit) ×2 70ns

Compliance CE, UL/CUL, BSMI, FCC Class A, TÜV-GS

Communication Interface

Communication RS-232C (DB-9) at 2400, 4800, 9600 or 19200 38400,

56000, 57600, 115200, 128000, 50000 baud rate

Word Length 7 or 8 data bits, 1 or 2 stop bits, selectable parity

Communication Protocol XON/XOFF and DSR/DTR

Parallel Port Standard parallel interface

Input Buffer 10KB

TTP-248M/2410M Bar Code 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

CTS 8 5 8 RDY

9 +5V

1.3 Available Bar Codes

 Code 39

 Code 39C

 Code 93

 Code128UCC

 Code128 subsets A.B.C

 Code 11

 Codabar

 Interleave 2 of 5

 EAN-8

 EAN-13

 EAN-128

 UPC-A

 UPC-E

 EAN and UPC 2(5) digits add-on

 CPOST

 MSI

TTP-248M/2410M Bar Code Printer

Service Manual

 PLESSEY

 POSTNET

 EAN-14

 ITF14

 PDF-417

 Maxicode

 DataMatrix

1.4 Text Specification

Font Width x Length

Font 1 8x12

Font 2 12x20

Font 3 16x24

Font 4 24x32

Font 5 32x48

Font 6 14x19 OCRB

Font 7 21x27 OCRB

Font 8 14x25 OCRA

Font Width x Length

EAN 1 7x10

EAN 2 14x22

EAN 3 21x33

EAN 4 28x43

EAN 5 35x52

EAN 6 42x64

EAN 7 49x74

EAN 8 56x85

EAN 9 63x97

EAN 10 70x107

Font 1 to Font 8 are all build-in fonts and BF1 fonts.

EAN 1 to EAN 10 are the fonts used on Barcode UPC and EAN series (they

content numbers only).

TTP-248M/2410M Bar Code Printer

Service Manual

The above are the fonts we approve on our printers.

Specification of Fonts

Fixed Pixel Variable Pixel Singed byte Double byte Decode by Table

BF1 X X

BF2 X X

BF3 X X X

BF4 X X X

VF1 X X

VF2 X X

VF3 X X X

VF4 X X X

File Head of Font ( Fixed 32bytes )

Offset 0 B->Bitmap font

Offset 1 0->Fixed pixel 1->Variable Pixel

Offset 2 0->Singed Byte Decode 1->Double Byte

Decode

Offset 3 Decode by table

Offset 4 0-> None 1->Italic

Offset 5-6 Font Height

Offset 7-8 Font Width

Offset 9-10 Font decode start

Offset 11-12 Font decode end

Offset 13 Font decode type

Offset 14 Reversed

Offset 15-16 Font character total

Offset 17-18 Italic Width Variable

Offset 19-31 Reversed

If ( BF1 BF2 VF1 VF2 )

Offset 32-xx : Font Data

TTP-248M/2410M Bar Code Printer

Service Manual

Else if( BF3 BF4 VF3 VF4 )

Offset 32-xx : Decoded Table

Offset xx-xx : Font Data

VF1~4

Font data of variable pixel

(width low byte)(width high byte) Font Data

Font of variable printing spacing is two-bite-width of word in front of the data of every

word.

BF3~4 VF3~4

Decode Table

(char low byte) (char high byte) (offset 4 bytes ==> file start to font data)

The font with decade table, the previous two bytes of every word is the code of the

word, and the later four bytes is the displacement from the file head to the position of

the data of the word.

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TSC TTP 246M User manual

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