Other Messages

Unknown le.
Cause Corrective Action
Data sent to keep the printer up to date (such as
paper information) is in the wrong format.
Check the print job. T urn of f the printer and wait a
while before restoring power , and then resend the
data.
Check the rmware version. T urn of f the printer and
wait a while before restoring power , and then resend
the rmware.
Y ou have uploaded rmware for a dif ferent model.
If the message is displayed again, contact your
Canon dealer for assistance.
Prepare for parts replacement.
Cause Corrective Action
It is almost time to replace consumables for which
service is required.
If Parts replacement time has passed. is displayed,
you can continue to use the printer for some time.
Contact your Canon dealer for assistance.
Parts replacement time has passed.
Cause Corrective Action
It is past the recommended time to replace
consumables for which service is required.
Contact your Canon dealer for assistance.
Multi-sensor error
Cause Corrective Action
Direct sunlight or strong lighting may be shining on
the printer and causing the sensor to malfunction.
T ake steps to ensure the printer is not used when
exposed to direct sunlight or strong lighting.
The performance of a sensor inside the printer may
be impaired.
Contact your Canon dealer for assistance.
Hardware error . xxxxxxxx-xxxx (x represents a letter ornumber)
In the following situations, turn of f the printer and wait at least three seconds before restoring power . However ,
keep the printer of f and remove the roll if the last portion of roll paper was used during a print job and paper
could not be advanced because the trailing edge is taped to the roll. If tape and the Belt Stopper have not
been removed from inside the T op Cover , turn of f the printer , open the T op Cover , and remove the tape
and Belt Stopper before restoring power .
If the message is still displayed, write down the error code and message, turn of f the printer , and contact your
Canon dealer for assistance.
•The error message is displayed with the following instructions: T urn off printer , wait, then turn on
again.
786 Error Message