Scanning System Related Service Call - Toshiba e-STUDIO205L Service Handbook

6.3.8

Scanning system related service call

[C260] Peak detection error
Does the exposure lamp light? (Perform the output check in the test mode: 03-267)
l YES
l
l
l
l
l
l
l
NO
1. Check if the connectors of the exposure lamp and inverter are disconnected.
2. Check the SLG board if the connector pin CN12 is disconnected and the harness is short
circuited or open circuited.
3. Check if the conductor pattern on the SLG board is short circuited or open circuited.
4. Replace the SLG board.
5. Replace the inverter.
6. Replace the exposure lamp.
[C270] Carriage home position sensor not going OFF within a fixed time
[C280] Carriage home position sensor not going ON within a fixed time
Remove the original glass and move the carriages to the paper feeding side. Turn ON the
power and check the following items.
[C270] Are the carriages slightly moved to the feeding direction? Are the carriages staying at a
position other than home position?
l YES
l
l
NO
1. Check if the connector pin is disconnected and the harness is short circuited or open
circuited.
2. Check if the conductor pattern on the SLG board is short circuited or open circuited.
3. Replace the SLG board.
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1. Check if the connectors on the CCD and SLG boards are
disconnected.
2. Check if the shading correction plate is dirty.
3. Check if the conductor pattern on the CCD board is short circuited or
open circuited.
4. Check if the conductor pattern on the SLG board is short circuited or
open circuited.
5. Replace the lens unit.
6. Replace the SLG board.
1. Check if the connector of the scan motor is disconnected.
2. Check if the connector pin is disconnected and the harness is short
circuited or open circuited.
3. Replace the SLG board.
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ERROR CODE AND TROUBLESHOOTING
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