e-STUDIO520/523/600/603/720/723/850/853 © 2005 - 2007 TOSHIBA TEC CORPORATION All rights reserved
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[C860] Large original exit sensor adjustment error
[C870] Temperature detection error
Is there any extraneous material between the large original exit sensor and reflective mir-
ror?
YES Remove the extraneous material.
NO
Is the reflective mirror tainted?
YES Clean up the mirror.
NO
Is the conductor pattern around IC6, IC11 and CN11 on the ADF board short circuited or
open circuited?
l
l
YES 1) Replace the ADF board.
2) Perform the sensor automatical adjustment of ADF and tray width
sensor adjustment.
NO
1) Replace the large original exit sensor.
2) Perform the sensor automatical adjustment of ADF
Check if the conductor pattern around thermistor(TH1) on the ADF board is not short cir-
cuited or open circuited.
Replace the ADF board.
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