4. TROUBLESHOOTING
EO18-33011
4. TROUBLESHOOTING
4- 1
4. TROUBLESHOOTING
Problems Cause
Solution
Power does not
turn ON.
1.
Input voltage to the printer is not
within the rated voltage. (Check by
CN1 on the PS unit.)
2.
Output voltage from the printer is
not within the rated voltage. [Check
that the voltage b27V pins
(1, 2 and 6) and PG pins (3, 7 and
8) of CN4 on the PS unit is 24V.
And check that the voltage between
+5V pin (5) and SG pin (4) is 5V.]
3.
No voltage to the CPU PC board.
[Check that the voltage between
+27V pins (1, 2 and 6) and PG pins
(3, 7 and 8) of CN501 on the CPU
PC board is 27V. And check that
the voltage b5V pin (5) and
LG pin (4) is 5V.]
4.
Failure of I/O PC board.
Replace the power cable or power
inlet.
Replace the PS unit.
Replace the power harness.
Replace the I/O PC board.
LED or LCD does
not light.
1.
Failure of the CPU PC board or
operation panel
2.
Failure of the operation panel
harness
Replace the CPU PC board or
operation panel.
Replace the operation panel harness.
Poor printing
1.
Poor media quality.
2. Dirty print head
3.
The print head is not set completely.
Use the media approved by
TOSHIBA TEC.
Clean the print head.
Close the print head completely.
Printer does not
print.
1. Print head failure
2. Connection of the print head
connector is incomplete, a bad
contact, or broken wires.
3. Failure in rewinding/feeding of the
ribbon.
4. Failure of the CPU PC board.
5. Failure of the software
6.
Failure of the printer cable.
Replace the print head.
Connect the harness completely, or
replace the harness.
Replace the ribbon rewind motor,
ribbon feed motor or I/O PC board.
Replace the CPU PC board.
Check the program.
Replace the printer cable.
Dot missing
1. Broken print head element
2. Broken print head cable wires
3. Failure of the CPU PC board
4. Failure of the I/O PC board
Replace the print head.
Replace the print head harness.
Replace the CPU PC board.
Replace the I/O PC board.
Blurred print
1. Poor media quality.
2.
Dust is on the media.
Use only TOSHIBA TEC-approved
media.
Clean the print head and remove any
dust from the media.