Scanning System Related Service Call - Toshiba e-STUDIO 5540C Service Manual

8.3.14

Scanning system related service call

[C260] Peak detection error
Classification
Scanning system related service
call
Proce
Check item
dure
1 Is the exposure lamp
lit? (Output check: 03-267)
2 Shading correction plate
Mirror
Exposure lamp
CCD board / Lens unit
SLG board
3 SLG board
Inverter board
Exposure lamp
Supply harness
Parts to be replaced
Lens unit
SLG board
Exposure lamp
Supply harness
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Error content
Peak detection error
Result Measure
Yes It is lit.
No It is not lit.
1. Check if there is any scratch or stain on the shading
correction plate.
1. Check if the mirror is tilted.
- Check that the lens is reflected in the mirror looking at
carriage-1 from the upper position.
- Check that the mirror is secured at the leaf spring.
1. Check if the exposure lamp is correctly lit.
2. Check if the harness is connected properly to the exposure
lamp connector.
3. When the carriage is driven, check if the harness interferes
with it or parts are caught in it.
1. Check if the connector of the CCD board is connected
properly.
2. Check if the CCD board is installed properly. (Check that the
lens unit is not tilted or the screw is securely tighten.)
1. Check if the connector of the SLG board is connected
properly.
2. Check if the mounted parts on the SLG board are damaged
or abnormal.
3. Check if 10 V is output from the power supply for CCD.
1. Check if the supply cable is connected properly to the
connector.
2. Check if the mounted parts on the SLG board are damaged
or abnormal.
1. Check if the harness of the exposure lamp is connected to
the inverter board properly.
2. Check if the supply harness to the inverter board is
connected properly.
3. Check if the mounted parts on the inverter board are
damaged or abnormal.
1. Check if the harness of the exposure lamp is connected to
the inverter board properly.
2. Check if the exposure lamp is scratched or damaged.
1. Check if wiring of the supply harness (CN127) is abnormal.
2. Check if the harness is scratched or open circuited.
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e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
ERROR CODE and TROUBLESHOOTING
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