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October 9th, 1995
6. TROUBLESHOOTING
6.1. SELF-DIAGNOSTICS
The scanner automatically performs a series of self-diagnostic checks each
time the power is turned on. If an error is detected, it is displays the type of
error using the four LEDs on the scanner and the ADF. See "Detailed Section
Descriptions - Initialization" for more details of the initialization procedure.
6.2. CHECK ITEMS
6.2.1. Items Checked During Initialization
The self diagnostics check the following items at power-up.
1. ADF exposure cover open
Is the ADF exposure cover in the right position?
2. Lamp error
Is the lamp installed properly? Is it intact?
3. Document feeder cover open
Is the document feeder cover closed?
4. Paper jam: Is there a paper jam?
5. Document table error (System error)
Does the document feeder table work properly?
6. Memory error (System error)
Does the memory in the scanner work properly?
7. Shading error (System error)
Has the scanner done shading correction correctly?
8. Origin positioning error (System error)
Has the scanner detected the origin position properly?
9. Home position error (System error)
Have the carriages reached home position properly?
•
Notes:
If an error is detected for any of items 5) to 9), "System Error" is in-
dicated, and the details can be checked with the self-diagnostics
(see section 6-3).
•
Even if an error is detected for item (3), scanning can start in book
mode.
•
A paper jam can only be detected when the document feeder
cover is closed.
6-1
TROUBLESHOOTING
SELF-DIAGNOSTICS
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