4. TROUBLESHOOING EO18-33017
4. TROUBLESHOOTING
4- 1
4. TROUBLESHOOTING
Problems Cause Solution
1. Input voltage to the printer is not within
the rated voltage. (Check by CN1 on
the PS unit).
1. Replace the power cable or
power inlet.
2. Output voltage from the printer is not
within the rated voltage. (Check that
the voltage between Pin 4 and Pin 6
(GND) Or CN1 on the PS unit is 27V.
And check that the voltage between
Pin 11 and Pin 6 (GND) is 5V).
2. Replace the PS unit
3. No voltage to the MAIN PC board.
(Check that the voltage between Pin 1
and Pin 5 (GND) of CN2 on the MAIN
PC Board is 27V. And check that the
voltage between Pin 11 and Pin 10
(GND) is 5V.)
3. Replace the power harness.
Power does not turn ON.
4. Failure of MAIN PC Board. 4. Replace the CPU PC board.
1. Failure of the LED board/LCD 1. Replace the LED board/LCD.
2. Failure of the LCD/LED harness 2. Replace the LCD/LED harness.
LED or LCD does not
light.
3. Failure of the MAIN PC board. 3. Replace the MAIN PC board.
1. The print paper is of poor quality. 1. Use the media approved by
TOSHIBA TEC.
2. Dirty print head. 2. Clean the print head.
Poor print quality
3. The head lever fastens the print head
incompletely.
3. Fasten the head lever complete.
1. Print head failure 1. Replace the print head.
2. Connection of the print head connector
is completed, a bad contact, or broken
dots.
2. Connect the harness completely,
or replace the harness.
3. Failure in taking-up or supplying the
ribbon.
3. Replace the ribbon take-up
motor, ribbon feed motor, or MAIN
PC Board.
4. Failure of the MAIN PC board 4. Replace the MAIN PC board.
5. Failure of the software 5. Check the program
Printer does not print.
6. Failure of the printer cable. 6. Replace the printer cable.
1. Broken print head element 1. Replace the print head.
2. Broken print head cable wires 2. Replace the print head harness.
Dot missing
3. Failure of the MAIN PC board. 3. Replace the MAIN PC board.
1. Poor media quality 1. Use only TOSHIBA TEC
specified media
Blurred print
2. Dust is on the media. 2. Clean the print head and remove
any dust from the media.
1. Poor ribbon quality 1. Use only TOSHIBA TEC
specified ribbon
Ribbon wrinkle
2. Ribbon is not taken up or supplied
smoothly.
2. Replace the ribbon take-up
motor or ribbon feed motor.
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