Cause Corrective Action
The paper is wrinkled or warped. (See "Loading Sheets in the Printer.") →P.555
A cut line is printed because CutDustRe-
duct. is On in the Control Panel menu to re-
duce cutting dust.
If this function is not needed, set CutDustReduct. to Off in the Control Panel menu.
(See "Menu Settings.") →P.667
The Printhead is set too low in the Control
Panel menu.
In the Control Panel menu, set Head Height to Automatic.
(See "Troubleshooting Paper Abrasion and Blurry Images.") →P.803
You are printing on heavyweight paper or pa-
per that curls or wrinkles easily after absorb-
ing ink.
When printing on Canon Heavyweight Coated Paper or other paper-based media, choose a
VacuumStrngth setting of Strong or Strongest in the Control Panel menu. If rubbing still oc-
curs, in the Control Panel menu, use a higher Head Height setting.
(See "Adjusting the Vacuum Strength.") →P.811
(See "Troubleshooting Paper Abrasion and Blurry Images.") →P.803
When printing on CAD Tracing Paper or other film-based media, choose a VacuumStrngth
setting of Standard, Strong, or Strongest in the Control Panel menu. If rubbing still occurs, in
the Control Panel menu, use a higher Head Height setting.
(See "Adjusting the Vacuum Strength.") →P.811
(See "Troubleshooting Paper Abrasion and Blurry Images.") →P.803
The Ejection Guide is soiled. Clean the Ejection Guide.
(See "Cleaning the Printer Exterior.") →P.861
The surface of the paper is dirty
The surface of the paper is dirty
Cause Corrective Action
The Paper Retainer is soiled. Clean the Paper Retainer.
(See "Cleaning Inside the Top Cover.") →P.861
You are using a paper that does not
dry easily.
In the Control Panel menu, set Roll DryingTime to at least 1 min.
(See "Menu Settings.") →P.667
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.
(See "Menu Settings.") →P.667
The back side of the paper is dirty
The back side of the paper is dirty
Cause Corrective Action
The Platen has become dirty after borderless printing or
printing on small paper.
Open the Top Cover and clean the Platen.
(See "Cleaning Inside the Top Cover.") →P.861
In the Control Panel menu, set CarriageScanWdth to Fixed.
(See "Menu Settings.") →P.667
The Platen has become soiled because you have set
Width Detection to Off in the Control Panel menu.
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.") →P.861
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.") →P.861
(See "Feeding Roll Paper Manually.") →P.543
The Platen suction is too strong. In the Control Panel menu, reduce the level of VacuumStrngth.
(See "Adjusting the Vacuum Strength.") →P.811
"BordlessOversize" is set to Standard in the Control
Panel menu.
Set "BordlessOversize" to "Little" in the Control Panel menu.
(See "Menu Settings.") →P.667
The surface of the paper is dirty
iPF9400
User's Guide
Troubleshooting Problems with the printing quality
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