The Speaker Company TTP 248M service manual File Head of Font Fixed 32bytes

Page 9

TTP-248M Bar Code Printer

Service Manual

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

Reserved

Offset 15-16

Font character total

Offset 17-18

Italic Width Variable

Offset 19-31

Reserved

If ( BF1 BF2 VF1 VF2 )

Offset 32-xx : Font Data

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.

6

Image 9
Contents TTP 248M TTP-248M Bar Code Printer Table of ContentTTP-248M Bar Code Printer Printer Overview Foundamentals about the SystemSpecification TTP-248M Bar Code Printer Pinter SpecificationCommunication Interface Available Bar Codes Text Specification File Head of Font Fixed 32bytes BF3~4 VF3~4 Types of Paper SpecificationTTP-248M Bar Code Printer Ribbon Specification MCU Circuit DescriptionMCU MCU PIN Description Page Page Page Page Page Page Page Page Reset Circuit TTP-248M Bar Code Printer Reset CircuitEtro N Tech TTP-248M Bar Code Printer Memory SystemMemory Address Map Decoder CircuitsUse by CPU Area Internal I/O Sdram TTP-248M Bar Code Printer Firmware Address Map VCC TTP-248M Bar Code Printer Power Down SensorGND TTP-248M Bar Code Printer Print HeadStepping Motor Pattern Motor System CircuitRibbon Near End Sensor TTP-248M Bar Code Printer Sensor Circuits10 Black mark/ Gap Sensor Circuit Peel-off Sensor 11 Peel-off Sensor Circuit Case Sensor GND VDD Serial Port CircuitVDD Parallel Port Circuit17 Cutter Drive Circuit TTP-248M Bar Code Printer Cutter Drive SystemConnector Circuits TTP-248M Bar Code Printer PIN Switch Circuits21 Memory Card Connector 23 Stepping Motor Connector Optional Item---Buzzer TTP-248M Bar Code Printer Optional Items CircuitsRemove the Covers and LCD Panel MachanismLoosen the three screws on Top Left Side Cover Screw LCD Panel Lower Front Cover TTP-248M Bar Code Printer Replacing the Mainboard TTP-248M Bar Code Printer Replacing the Power Supply Unit Belt Ring of Label Rewind Spindle Remove the E-ring of pulley. And then, remove the pulley TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Ribbon Supply Spindle TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Label Supply Spindle TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Label Rewind Spindle TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Platen Remove the Platen and Left Shaft Bearing TTP-248M Bar Code Printer Replacing Motor TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Print Head Remove the 2 screws these are on the TPH switch plate Remove A.B.C.D in order Loosen M4 screw, knob E and F TTP-248M Bar Code Printer Replacing Gap/Black Mark Sensor TTP-248M Bar Code Printer Reassemble in the reverse procedures after replacing Curly plastic pipe Screws Troubleshooting TroubleshootingFlash / Dram Calibrate Gap/Black Mark SensorDiagnosis Operation Procedure TTP-248M Bar Code Printer Self-testDram Clear TTP-248M Bar Code Printer Cleaning Print Head Update History No.35, Sec , Ligong 1st Rd., Wujie Township