Top cover is open.
Top cover is open.
Cause Corrective Action
The printer has detected that the Top Cover is
open.
Open the Top Cover fully, remove any foreign objects, and close the Top Cover again.
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.
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.
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 paper
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 restoring
power, and then resend the firmware.
If the message is displayed again, contact your Canon dealer for assistance.
Calibration There is a problem with the multi-sensor.
Calibration There is a problem with the multi-sensor.
Cause Corrective Action
The performance of a sensor inside the printer may be im-
paired.
Press the OK button and cancel calibration. 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 malfunc-
tion.
Take steps to ensure the printer is not used when exposed to direct sunlight or strong light-
ing.
Turn off the printer and wait at least three seconds before restoring the power.
The performance of a sensor inside the printer
may be impaired.
Turn off the printer and wait at least three seconds before restoring the power.
If the message is displayed again, contact your Canon dealer for assistance.
iPF8400S
Top cover is open.
User's Guide
Error Message Other Messages
977
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