Canon CANOSCAN FB330 series Service Manual page 120

CHAPTER 5
4. Error Message
Error messages which may occur during Canon Scanner Test USB, the cause and
corrective actions are described below.
1) When Canon Scanner Test USB is started, "Could not find USB scanner" is displayed.
Cause 1 : Device driver for the scanner is not installed in the host computer.
Corrective action : Install the device driver.
Cause 2 : Scanner is not detected by the host computer.
Corrective action : Properly detect the scanner by the host computer.
2) Scanner Information is not displayed or "Command Inquiry : Scan Head Positioning
Error Occurs" is displayd.
Cause 1 : Lock switch is locked.
Corrective action : Unlock the lock switch.
Cause 2 : Scanner is not detected by the host computer.
Corrective action : Properly detect the scanner by the host computer.
Cause 3 : Faulty flat cable
Corrective Action : Check the flat cable connector. If it has no problem, replace the drive
unit.
Cause 4 : Faulty contact image sensor
Corrective Action : Replace the contact image sensor.
Cause 5 : Faulty main PCB
Corrective Action : Replace the main PCB.
3) When the start button is pressed, information is not displayed.
Cause 1 : Canon Scanner Test USB for Macintosh is executed.
Corrective Action : Canon Scanner Test USB for Macintosh does not have the start button
test function.
Cause 2 : Faulty button PCB
Corrective Action : Check the connector. If it has no problem, replace the button PCB.
4) "File Open Error" is displayed.
Cause : Canon Scanner Test USB is started from a CD-ROM or write-protect
HDD.
Corrective Action : Copy the Canon Scanner Test USB on a writable HDD to use.
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COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)