The Back Side Of The Paper Is Dirty; Printed Colors Are Inaccurate - Canon imagePROGRAF iPF815 User Manual

Cause
You are using a paper that
does not dry easily.

The back side of the paper is dirty

Cause
The Platen has become dirty after borderless print-
ing or printing on small paper.
The Platen has become soiled due to printing on the
Platen because width detection is deactivated.
The Paper Retainer is soiled.

Printed colors are inaccurate

Cause
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
repeated use, and colors may change.
iPF815
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 "Main Menu Settings.")
Open the Top Cover and clean the Platen.
(See "Cleaning Inside the Top Cover.")
Set CarriageScanWdth to Fixed.
Activate width detection, and 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.")
In the Advanced Settings of the printer driver, access Color Set-
tings 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 Straightening of Lines and Colors (Auto
Head Adj.).")
(See "Manual Straightening of Lines and Colors (Manual
Head Adj).")
Troubleshooting > Problems with the printing quality
Corrective Action
→P.722
Corrective Action
Corrective Action
→P.668
→P.670
The back side of the paper is dirty
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→P.837
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