TEC CB-416 Series Maintenance Manual

Contents

TEC CB-416 Series Maintenance Manual Manual pdf 26 page image

4-14. TROUBLESHOOTING EO18-33002ACause1. Input voltage to the printer is notwithin the rated voltage.(Check by CN1 on the PS unit.)2. Output voltage from the printer isnot within the rated voltage.(Check that the voltage betweenPin 5 and Pin 8 (GND) of CN2 onthe PS unit is 24V.And check that the voltage betweenPin 1 and Pin 3 (GND) is 5V.3. No voltage to the driver PC board.(Check that the voltage betweenPin 5 and Pin 8 (GND) of CN44 onthe CPU PC board is 24V. Andcheck that the voltage between Pin1 and Pin 8 (GND) is 5V.)4. Failure of the driver PC board.1. Failure of the LED board/LCD2. Failure of the LCD/LED harness3. Failure of the driver PC board1. The print paper is of poor quality.2. Dirty print head3. The head lever fastens the printhead incompletely.4. Failure of the driver PC board.1. Print head failure2. Connection of the print headconnector is incomplete, a badcontact, or broken wires.3. Failure in rewinding/feeding of theribbon.4. Failure of the driver PC board5. Failure of the CPU PC board.6. Failure of the software7. Failure of the printer cable1. Broken print head element2. Broken print head cable wires3. Failure of the driver PC board4. TROUBLESHOOTING4. TROUBLESHOOTINGProblemsPower does not turnON.LED or LCD does notlight.Poor printingPrinter does not print.Dot missingSolution• Replace the power cable or powerinlet.• Replace the PS unit.• Replace the power harness.• Replace the driver PC board.• Replace the LED board/LCD.• Replace the LCD/LED harness.• Replace the driver PC board.• Use the media approved byTOSHIBA TEC.• Clean the print head.• Fasten the head lever completely.• Replace the driver PC board.• Replace the print head.• Connect the harness completely,or replace the harness.• Replace the ribbon rewind motor,ribbon feed motor or driver PCboard.• Replace the driver PC board.• Replace the CPU PC board.• Check the program.• Replace the printer cable.• Replace the print head.• Replace the print head harness.• Replace the driver PC board.