Cause
Corrective Action
The type of paper specified in the print-
er driver does not match the type loa-
ded in the printer.
Make sure the same type of paper is specified in the printer driver as you have loaded in the
printer.
1.
Press the
Stop
button and stop printing.
2.
Change the type of paper in the printer driver and try printing again.
Colors in printed images are uneven
Colors in printed images are uneven
Cause
Corrective Action
Line Drawing/Text
is selected when print-
ing images in many solid colors.
In
Print Priority
in the
Advanced Settings
of the printer driver, choose
Image
.
You are printing on paper that curls easily.
Printed colors may appear uneven on the leading edge of paper that is susceptible to curl-
ing. Select a stronger level in
VacuumStrngth
in the Control Panel menu to increase suction
against the paper, or specify a leading margin of 20 mm (0.79 in) or more.
(See "Adjusting the Vacuum Strength.")
→User's Guide
Printed colors may be uneven if you set
the
Print Quality
too low.
Choose a higher level of
Print Quality
in the
Advanced Settings
of the printer driver.
Printing in
Fast
or
Standard
mode is faster and consumes less ink than in
Highest quality
or
High
modes, but the printing quality is lower.
(See "Giving Priority to Particular Graphic Elements and Colors for Printing.")
→User's Guide
Color may be uneven between dark and
light image areas.
Select
Unidirectional Printing
in the
Advanced Settings
of the printer driver.
When borderless printing is used, the edge
of the paper is cut during printing. Thus,
ink density may be slightly uneven at the
leading edges.
Specify
No
in
Automatic Cutting
in the printer driver before printing. In this case, the paper
can be printed without borders on the left and right sides only. Cut the printed document
ejected from the printer, and then use scissors or a cutting tool to cut away the edges on the
top and bottom.
Choose a higher level of
Print Quality
in the
Advanced Settings
of the printer driver.
(See "Giving Priority to Particular Graphic Elements and Colors for Printing.")
→User's Guide
The Printhead is out of alignment.
Adjust the Printhead alignment.
(See "Automatic Adjustment to Straighten Lines and Colors.")
→P.97
Allowing printed documents to dry on top
of each other may cause uneven colors.
To avoid uneven colors, we recommend drying each sheet separately.
Density may be uneven if you use Glossy
Paper or
Canon Coated Paper
.
In
Advanced Settings
of the printer driver, choose
Highest quality
or
High
in
Print Quali-
ty
.
The type of paper specified in the printer
driver does not match the type loaded in
the printer.
Load paper of the same type as you have specified in the printer driver.
(See "Loading Rolls in the Printer.")
→P.11
(See "Loading Sheets in the Feed Slot.")
→P.18
Make sure the same type of paper is specified in the printer driver as you have loaded in the
printer.
1.
Press the
Stop
button and stop printing.
2.
Change the type of paper in the printer driver and try printing again.
Colors may be uneven at the trailing edge
when you print on heavyweight sheets
even if you execute
Adj Far Ed Feed
.
For heavyweight sheets or similar paper, execute
Adj Far Ed Feed
with the Front Tray
Guides raised. Also keep the Front Tray Guides raised during printing.
Lower the Front Tray Guides when printing on paper other than heavyweight sheets.
Scan Wait Time
>
Area
in the Control
Panel menu is set to
Leading edge
.
When
Scan Wait Time
>
Area
is set to
Leading edge
, colors may be uneven 110–140 mm
from the leading edge. (The position varies depending on the
Print Quality
setting.)
In this case, select
Scan Wait Time
>
Area
>
Entire area
.
However, note that printing will now take longer.
(See "Menu Settings.")
→User's Guide
When you load paper in the Front Paper
Feed Slot and print, colors may be uneven
at the leading edge of the paper.
Choose a higher level of
Print Quality
in the
Advanced Settings
of the printer driver.
Printing in
Fast
or
Standard
mode is faster and consumes less ink than in
Highest quality
or
High
modes, but the printing quality is lower.
iPF6450
Colors in printed images are uneven
Basic Guide
Troubleshooting
Problems with the printing quality
117
