Toshiba e-STUDIO520 Service Handbook page 432

[C860] Large original exit sensor adjustment error
Is there any extraneous material between the large original exit sensor and reflective mir-
ror?
YES
NO
Is the reflective mirror tainted?
YES
NO
Is the conductor pattern around IC6, IC11 and CN11 on the ADF board short circuited or
open circuited?
l YES
l
NO
1) Replace the large original exit sensor.
2) Perform the sensor automatical adjustment of ADF
[C870] Temperature detection error
Check if the conductor pattern around thermistor(TH1) on the ADF board is not short cir-
cuited or open circuited.
Replace the ADF board.
e-STUDIO520/523/600/603/720/723/850/853
TROUBLESHOOTING
Remove the extraneous material.
Clean up the mirror.
1) Replace the ADF board.
2) Perform the sensor automatical adjustment of ADF and tray width
sensor adjustment.
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