Canon GP335 Service Manual page 646

CHAPTER 14 TROUBLESHOOTING
Code Detail
E243
E261
E300
0000
0001
E301
E315
0001
0002
0003
0004
E603
E604
E605
E674
14-228
Cause
The communication with the control
panel has an error.
• The control panel CPU has an error.
• The image processor PCB has an error.
The zero-cross signal has an error.
• The power supply frequency fluctuates.
• The composite power supply PCB has
a fault.
The download data contains a mismatch
model type (speed, spec).
The versions of the two flash ROMs on
the image processor PCB do not match.
The scanning lamp intensity has a fault.
• The scanning lamp has a fault.
• The CCD PCB has a fault.
• The DC controller PCB has a fault.
The image data coding mechanism has an
error.
• The coding chip has an error.
• The image memory has an error.
An error has occurred in self diagnosis on
the chip for image compression/
decompression.
An error has occurred in decoding.
An error has occurred in coding.
An error has occurred in coding.
The SCSI fuse has blown.
The image memory has a fault.
• The RAM has a fault.
• The expansion memory is not mounted
properly.
The image memory battery has a fault.
• The battery has a fault. (The image
memory battery is an accessory to the
FAX board.)
The fax unit has a fault.
• The chip has a fault.
• The fax unit has poor connection.
COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Description
A communication error is
detected between the CPU on
the control panel and the image
processor PCB.
The intervals of the zero-cross
signal deviates from a specific
range.
The download data is found to
be for a different model when
the main switch is turned on
after downloading.
The output of the intensity
sensor drops below a specific
value while the lamp is on.
A fault is discovered when
image data is coded/decoded.
When the main power is turned
on.
When image data is being
decoded for printing.
When image data is being
coded during copying or fax
reading.
When image data is being
coded during storing print data.
The SCSI fuse has blown.
A write fault is detected when
image data is written to the
image memory.
The voltage of the image
memory battery is lower than a
specific value (if after an
adequate charging time and the
power was turned on within a
charge life).
An error is detected when
writing to the chip while
receiving a fax message.