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The Speaker Company TTP 248M Replacing Print Head Lift Lever Sensor, Curly plastic pipe Screws

Models: TTP 248M

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4.14 Replacing Print Head Lift Lever Sensor

TTP-248M Bar Code Printer

Service Manual

4.14 Replacing Print Head Lift Lever Sensor

1.Open the Top Left Side Cover.

2.Remove the Curly plastic pipe, and pull out the harness.

3.Disconnect all harness of Print Head Lift Lever Sensor. Remove the 2 screws of Print Head Lift Lever Sensor.

Curly plastic pipe

Screws

4.Remove Print Head Lift Lever Sensor.

5.Reassemble in the reverse procedures after replacing.

Page 67

Image 67

The Speaker Company TTP 248M Replacing Print Head Lift Lever Sensor, TTP-248M Bar Code Printer Service Manual

Contents

MANUAL TTP 248M THERMAL TRANSFER / DIRECT THERMAL BAR CODE PRINTER SERVICETTP-248M Bar Code Printer Service Manual TABLE OF CONTENT TTP-248M Bar Code Printer Service ManualFront View TTP-248M Bar Code Printer Service Manual1. FOUNDAMENTALS ABOUT THE SYSTEM Printer OverviewElectrical TTP-248M Bar Code Printer Service Manual 1.2 Pinter SpecificationSpecification EnvironmentTTP-248M Bar Code Printer Service Manual Communication Interface25 Pin 1.3 Available Bar CodesHost 9 PinWidth x Length 1.4 Text SpecificationSpecification of Fonts FontVF1~4 File Head of Font Fixed 32bytesTTP-248M Bar Code Printer Service Manual TTP-248M Bar Code Printer Service Manual BF3~4 VF3~4Decode Table TTP-248M Bar Code Printer Service Manual 2. SUPPLY SPECIFICATIONS2.2 Specification 2.1 Types of PaperSpecification TTP-248M Bar Code Printer Service Manual 2.3 Ribbon SpecificationTTP-248M Bar Code Printer Service Manual Fig. 3.1 MCU Circuit Diagram3. CIRCUIT DESCRIPTION 3.1 MCUTTP-248M Bar Code Printer Service Manual Fig. 3.2 System Block of PCBTTP-248M Bar Code Printer Service Manual 3.2 MCU PIN Description TTP-248M Bar Code Printer Service Manual TTP-248M Bar Code Printer Service Manual TTP-248M Bar Code Printer Service Manual TTP-248M Bar Code Printer Service Manual TTP-248M Bar Code Printer Service Manual TTP-248M Bar Code Printer Service Manual TTP-248M Bar Code Printer Service Manual TTP-248M Bar Code Printer Service Manual Fig. 3.3 Reset Circuit TTP-248M Bar Code Printer Service Manual 3.3 Reset CircuitV CC TTP-248M Bar Code Printer Service Manual 3.4 Memory SystemFig. 3.4 Memory System G ND JUSE CPLD to decode TTP-248M Bar Code Printer Service Manual 3.5 Decoder Circuits3.6 Memory Address Map Privileged modeTTP-248M Bar Code Printer Service Manual 0xAC3FFFFF TTP-248M Bar Code Printer Service Manual0xA88FFFFF 0xAC000000TTP-248M Bar Code Printer Service Manual 3.7 Firmware Address Map Vref TTP-248M Bar Code Printer Service Manual 3.8 Power Down SensorFig. 3.6 Power Down Sensor Circuit Ip kRESET PH 3.9 Print HeadFig. 3.7 Print Head ROHM KF2004-GL41B Print Head Sensor TTP-248M Bar Code Printer Service ManualINAR TTP-248M Bar Code Printer Service Manual 3.10 Motor System CircuitPHASE STEPBlack Mark Sensor TTP-248M Bar Code Printer Service Manual 3.11 Sensor CircuitsRibbon Near End Sensor Fig. 3.9 Ribbon Near End Sensor Circuit GAP SensorGAPE Fig. 3.10 Black mark/ Gap Sensor Circuit Peel-off SensorTTP-248M Bar Code Printer Service Manual BM ETTP-248M Bar Code Printer Service Manual Fig. 3.11 Peel-off Sensor Circuit Case SensorFig. 3.12 Case sensor Print Head Lift Lever Open Sensor Fig. 3.13 Print Head Lift Lever Open Sensor Circuit Ribbon End SensorTTP-248M Bar Code Printer Service Manual 3.12 Serial Port CircuitFig. 3.14 Ribbon End Sensor Circuit Fig. 3.15 Serial Port CircuitERROR 3.13 Parallel Port CircuitFig. 3.16 Parallel Port Circuit TTP-248M Bar Code Printer Service ManualFig. 3.17 Cutter Drive Circuit TTP-248M Bar Code Printer Service Manual 3.14 Cutter Drive SystemFig. 3.19 Download boot program to on-board Flash memory pin switch TTP-248M Bar Code Printer Service Manual 3.15 PIN Switch Circuits3.16 Connector Circuits Fig. 3.18 LTC490 and RS232 pin switchJP33 Fig. 3.21 Memory Card ConnectorFig. 3.22 Cutter Connector Circuit TTP-248M Bar Code Printer Service ManualOUT1 Fig. 3.23 Stepping Motor ConnectorTTP-248M Bar Code Printer Service Manual STEPPING MOTORBUZZERO TTP-248M Bar Code Printer Service Manual 3.17 Optional Items CircuitsFig. 3. Optional Item---Buzzer 10 K1. Open Top Right Side Cover 4. MACHANISM4.1 Remove the Covers and LCD Panel TTP-248M Bar Code Printer Service Manual3. Loosen the three screws on Top Left Side Cover TTP-248M Bar Code Printer Service Manual4. Remove Top Right Side Cover and Top Left Side Cover Screw LCD Panel Screw Lower Front Cover TTP-248M Bar Code Printer Service ManualScrew TTP-248M Bar Code Printer Service Manual 4.2 Replacing the MainboardTwo screws Screws 4.3 Replacing the Power Supply UnitTTP-248M Bar Code Printer Service Manual Power Supply UnitTTP-248M Bar Code Printer Service Manual 4.4 Replacing the Ribbon Rewind Spindle1. Refer to 4.3 to remove the Power Supply Unit Screws TTP-248M Bar Code Printer Service Manual4. Remove the E-ring of pulley. And then, remove the pulley 5. Loosen the three screws on the Cam Spindle Support Plate7. Reassemble in the reverse procedures after replacing TTP-248M Bar Code Printer Service Manual6. Replace the Ribbon Rewind Spindle 2. Remove the shaft bearing 3. Replace the Ribbon Supply Spindle 4.5 Replacing Ribbon Supply SpindleTTP-248M Bar Code Printer Service Manual 1. Remove the four screws of the Ribbon Supply Spindle4. Reassemble in the reverse procedures after replacing TTP-248M Bar Code Printer Service Manual2. Remove the three screws of the Label Supply Spindle 4.6 Replacing Label Supply SpindleTTP-248M Bar Code Printer Service Manual 1. Refer to 4.2 to remove the Mainboard5. Reassemble in the reverse procedures after replacing TTP-248M Bar Code Printer Service Manual2. Remove the E-ring and the pulley of the Label Rewind Spindle 4.7 Replacing Label Rewind SpindleTTP-248M Bar Code Printer Service Manual 1. Refer to 4.3 to remove the Power Supply Unit6. Reassemble in the reverse procedures after replacing TTP-248M Bar Code Printer Service Manual5. Replace the Label Rewind Spindle 3. Remove the screw and the Stripper/Rewind Plate TTP-248M Bar Code Printer Service Manual 4.8 Replacing Platen1. Refer to 4.1 to remove the Top Right and Left Side Covers 2. Release the Print Head Lift Lever7. Reassemble in the reverse procedures after replacing TTP-248M Bar Code Printer Service Manual6. Remove the Platen and Left Shaft Bearing 3. Replace the Motor TTP-248M Bar Code Printer Service Manual 4.9 Replacing Motor1. Loosen the four fixing screws on the Motor 2. Disconnect the harness from the Motor4. Reassemble in the reverse procedures after replacing TTP-248M Bar Code Printer Service Manual2. Disconnect the two Printer Harnesses 3. Replace the Print Head TTP-248M Bar Code Printer Service Manual 4.10 Replacing Print Head4. Reassemble in the reverse procedures after replacing 1. Remove the screws on the Print HeadTTP-248M Bar Code Printer Service Manual 4.11 Replacing Print Head Pressure Adjustment Knob1. Open the Right Side Cover and Right Side Plate 7. Reassemble in the reverse procedures after replacing TTP-248M Bar Code Printer Service Manual5. Remove A.B.C.D in order 6. Loosen M4 screw, knob E and F 2. Refer to 4.8 to remove the Stripper/Rewind Plate 4.12 Replacing Gap/Black Mark SensorTTP-248M Bar Code Printer Service Manual 1. Disconnect the wires of Gap/Black Mark Sensor5. Remove the screw on the main frame. The Gap/Black Mark Sensor assembly is separated into upper part and lower part TTP-248M Bar Code Printer Service Manual7. Reassemble in the reverse procedures after replacing TTP-248M Bar Code Printer Service ManualTTP-248M Bar Code Printer Service Manual 4.14 Replacing Print Head Lift Lever SensorCurly plastic pipe Screws Recovery Procedure 5. TROUBLESHOOTING5.1 Troubleshooting Cause of ErrorsCarriage open On-Line indicator isoff, error indicator is 5.2 Calibrate Gap/Black Mark Sensor5.5 Diagnosis Operation Procedure TTP-248M Bar Code Printer Service Manual 5.3 Self-test5.4 DRAM Clear TTP-248M Bar Code Printer Service Manual 5.6 Cleaning Print Head Date UPDATE HISTORYTTP-248M Bar Code Printer Service Manual ContentCorporate Headquarters