The registration front sensor does not detect paper
pass within the specified time after the first side was
printed in duplex printing mode.
The eject sensor remains ON (paper pass detected)
for more than the specified time even after the
registration rear sensor detected the end of paper
Detected discharge that may be attributable to dirty
corona wire on the drum unit.
Detected that DIMM was faulty or was mounted
An error occurred during access to the DRAM in the
An error occurred in the ROM check sum.
Type of problem