Cause Corrective Action
The printer has detected that the Top Cover is
open.
If the error occurs again, close the Top Cover, turn off the printer, and wait a while
before restoring power.
Prepare for parts replacement.
Prepare for parts replacement.
Cause Corrective Action
It is almost time to replace consumables
for which service is required.
You can continue to use the printer for some time until "Parts replacement time has
passed." will be displayed.
Contact your Canon dealer for assistance.
Parts replacement time has passed.
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.
Unknown file.
Unknown file.
Cause Corrective Action
Data sent to keep the printer up to date (such as pa-
per information) is in the wrong format.
Check the data. Turn off the printer and wait a while before restoring power,
and then resend the data.
You have uploaded firmware for a different model. Check the firmware version. Turn off the printer and wait a while before re-
storing power, and then resend the firmware.
If the message is displayed again, contact your Canon dealer for assis-
tance.
Multi-sensor error
Multi-sensor error
Cause Corrective Action
Direct sunlight or strong lighting may be shining on
the printer and causing the sensor to malfunction.
Take 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.
Turn off the printer and wait at least three seconds before restoring the pow-
er.
If the message is displayed again, contact your Canon dealer for assistance.
iPF840 Series
Prepare for parts replacement.
Basic Guide
Error Message Other Messages
145
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