Printed Colors Are Inaccurate; Banding In Different Colors Occurs - Canon iPF755 User Manual

Cause
The Platen has become soiled because you
have set Width Detection to Off in the
Control Panel menu.
The Paper Retainer is soiled.

Printed colors are inaccurate

Cause
Color adjustment has not been activated in the
Advanced Settings of the printer driver.
Colors have not been adjusted on the computer
or monitor.
The Printhead nozzles are clogged.
In the Windows printer driver, Application Col-
or Matching Priority is not selected.
Printhead characteristics gradually change
through repeated use, and colors may change.
Color may change slightly even on the same
model of printer if you use a different version of
the firmware or printer driver, or when you print
under different settings or in a different printing
environment.

Banding in different colors occurs

Cause
The paper feed amount is out of ad-
justment.
Printing does not proceed smoothly
because print jobs are interrupted
during transmission.
In the Control Panel menu, Adj. Pri-
ority is set to Print Length.
The Printhead is out of alignment.
iPF755
Troubleshooting
Set Width Detection to On in the Control Panel menu, and then
open the Top Cover and clean the Platen.
(See "Cleaning Inside the Top Cover.")
Open the Top Cover and clean the Platen. After this, manually ad-
vance the roll onto the Platen before printing.
(See "Cleaning Inside the Top Cover.")
(See "Feeding Roll Paper Manually.")
Clean the Paper Retainer.
(See "Cleaning Inside the Top Cover.")
In the Advanced Settings of the printer driver, access Color
Settings in Color Mode to adjust colors.
Refer to the computer and monitor documentation to adjust the
colors.
Adjust the settings of the color management software, referring
to the software documentation as needed.
Print a test pattern to check the nozzles and see if they are clog-
ged.
(See "Checking for Nozzle Clogging.")
Click Special Settings on the Layout sheet of the printer driver
and select Application Color Matching Priority in the dialog
box.
Adjust the Printhead alignment.
(See "Automatic Adjustment to Straighten Lines and Colors
(Head Posi. Adj.).")
(See "Manual Adjustment to Straighten Lines and Colors
(Head Posi. Adj.).")
Follow these steps to prepare the printing environment.
1. Use the same version of firmware or printer driver.
2.
Specify the same value for all settings items.
Corrective Action
Adjust the feed amount.
(See "Adjusting the Feed Amount.")
Exit other applications and cancel other print jobs.
Setting Adj. Priority to Print Quality in the Control Panel menu and ad-
justing the feed amount may improve results.
(See "Adjusting the Feed Amount.")
Adjust the Printhead alignment.
> Problems with the printing quality
Corrective Action
→P.757
→P.757
→P.598
→P.757
Corrective Action
→P.741
→P.620
→P.622
→P.628
→P.628
Printed colors are inaccurate
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