5-2
5. TROUBLESHOOTING
EM18-33010A
5. TROUBLESHOOTING
• Replace the print head.
• Replace the print head harness.
• Replace the CPU PC board.
• Use only TOSHIBA TEC specified
media.
• Clean the print head and remove
the dust from the media.
• Use only TOSHIBA TEC specified
ribbon.
• Replace the ribbon rewind motor
or ribbon feed motor.
• Use only TOSHIBA TEC specified
ribbon.
• Refer to page 2-3 to adjust the
ribbon end sensor.
• Replace the ribbon end sonsor.
• Replace the CPU PC board.
• Set the paper properly.
• Use the paper approved by
TOSHIBA TEC.
• Re-adjust the sensor.
• Replace the feed gap sensor or
black mark sensor.
• Replace the take-up motor or CPU
PC board.
• Install the cutter mechanism
properly.
• Replace the stepping motor or
CPU PC board.
• Replace the cable.
• Replace the connector.
• Replace the connector.
• Modify the program.
• Replace IC3 (MC145407).
If the trouble is not solved, replace
the CPU PC board.
Dot missing
Blurred print
Ribbon wrinkle
Ribbon end error
Label feed failure
Communication error
Problems
Cause
Solution
1. Broken element of print head
2. Broken wires of print head cable
3. Failure of the CPU PC board
1. Poor quality of media.
2. Dust is attached to the media.
1. Poor quality of the ribbon
2. Ribbon is not rewound or fed
smoothly.
1. Poor quality of the ribbon.
2. Improper voltage applied to the ribbon
end sensor.
3. Failure of the ribbon end sensor
4. Failure of the circuit which controls
the ribbon end sensor.
1. Paper is not set properly.
2. Paper of poor quality
3. Improper adjustment of the feed gap
sensor or black mark sensor.
4. Failure of the feed gap sensor or
black mark sensor
5. Labels cannot be stripped off the
backing paper or the backing paper
with labels cannot be wound properly.
6. The cutter mechanism is not installed
properly.
7. Failure of the stepping motor
1. Failure of the communication cable
2. Failure of the RS-232C connector
3. Failure of the communication
connector
4. Failure of the PC or application
software
5. Failure of the CPU PC board
(Revision Date: Feb. 10, 2000)
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