Reference Plate Detection Voltage Abnormality - Toshiba e-STUDIO281c Service Handbook

[CF30] Reference plate detection voltage abnormality
Are the reference plate and color auto-toner sensor stained?
YES Clean them.
NO
Is the color auto-toner sensor shutter solenoid working normally?
(Perform the output check: 03-125/175)
Is the color auto-toner sensor working?
| NO 1) Check if the connectors or joint connectors of the color auto-toner sensor
|
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2) Check if the connector CN332 on the LGC board is disconnected.
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3) Check if the connector pins are disconnected or the harnesses are open
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4) Replace the color auto-toner sensor shutter solenoid.
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5) Check if the conductor pattern on the LGC board is short circuited or open
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6) Replace the LGC board.
|
7) Replace the color auto-toner sensor and perform "Enforced correction of
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|
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YES
Is the color auto-toner sensor shutter closing position correct?
(Perform the output check: 03-125/175)
| NO Adjust the install position of solenoid so that the gap between the sensor
|
holder and stopper will be 1.0 mm when closing the shutter.
YES
1) Replace the LGC board.
2) Replace the reference plate and perform "Initialization of color auto-toner sensor light
amount correction target value (05-207)".
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shutter solenoid and color auto-toner sensor are disconnected.
circuited.
circuited.
color auto-toner sensor light amount (05-208)".
5 - 95
e-STUDIO281c/351c/451c
TROUBLESHOOTING
5