The Surface Of The Paper Is Dirty; The Back Side Of The Paper Is Dirty; Printed Colors Are Inaccurate - Canon imagePROGRAF iPF765 Basic Manual

The surface of the paper is dirty

Cause
The Ejection Guide is soiled.
The surface of the paper is dirty The surface of the paper is dirty
Cause
The Paper Retainer is soiled.
You are using a paper that does
not dry easily.

The back side of the paper is dirty

The back side of the paper is dirty
Cause
The Platen has become dirty after borderless
printing or printing on small paper.
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

Printed colors are inaccurate
Color adjustment has not been activated in the Ad-
vanced 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 Color
Matching Priority is not selected.
Printhead characteristics gradually change through re-
peated 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.
96
(See "Cleaning the printer exterior.")
Clean the Paper Retainer.
(See "Cleaning Inside the Top Cover.")
In the Control Panel menu, set Roll DryingTime to at least 1 min.
(See "Menu Settings.")
When paper that does not dry easily is used for printing, it may curl during printing and touch the Out-
put Tray.
In this case, in the Control Panel menu, complete the settings for Dry time and Area in Scan Wait
Time.
However, note that printing will now take longer.
(See "Menu Settings.")
Open the Top Cover and clean the Platen.
(See "Cleaning Inside the Top Cover.")
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 advance 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.")
Cause
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 clogged.
(See "Checking for Nozzle Clogging.")
Click Special Settings on the Layout sheet of the printer driver and select Ap-
plication Color Matching Priority in the dialog box.
Adjust the Printhead alignment.
(See "Automatic Adjustment to Straighten Lines and Colors (Head Posi. Adj.).")
→P.77
(See "Adjusting the Printhead Alignment Manually.")
Follow these steps to prepare the printing environment.
1.
2.
Corrective Action
→User's Guide
Corrective Action
→P.39
→User's Guide
→User's Guide
Corrective Action
→P.39
→P.39
→P.39
→User's Guide
→P.39
Corrective Action
Use the same version of firmware or printer driver.
Specify the same value for all settings items.
iPF765
→User's Guide
→User's Guide
Basic Guide