Canon imagePROGRAF iPF825 Basic Guide No.2 Basic Manual page 8

Troubleshooting
Phenomenon
The surface of the paper is dirty
The back side of the paper is dirty
Printed colors are inaccurate
Cause
The Paper Retainer is soiled.
You are using a paper that does
not dry easily.
The Platen has become dirty after
borderless printing 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.
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 Color 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.
Corrective Action
Clean the Paper Retainer .
(→ , If Paper is Soiled)
In the Control Panel menu, set Roll DryingTime to
at least 1 min. .
(→"Main Menu Settings," User Manual)
When paper that does not dry easily is used for
printing, it may curl during printing and touch the
Output 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.
(→"Main Menu Settings," User Manual)
Open the Top Cover and clean the Platen .
(→ , If Paper is Soiled)
Set CarriageScanWdth to Fixed .
Activate width detection, and open the Top Cover and
clean the Platen .
(→ , If Paper is Soiled)
Open the Top Cover and clean the Platen . After this,
manually advance the roll onto the Platen before
printing.
(→ , If Paper is Soiled)
(→"Feeding Roll Paper Manually," User Manual)
Clean the Paper Retainer .
(→ , If Paper is Soiled)
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.
(→"Checking for Nozzle Clogging," User Manual)
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.
(→ , If Vertical Lines are Warped or Colors are
Misaligned)
(→"Manual Straightening of Lines and Colors (Manual
Head Adj)," User Manual)
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.
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