Colors In Printed Images Are Uneven - Canon iPF755 User Manual

Troubleshooting
The Printhead is out of alignment.
The Printhead nozzles are clogged.
Streaks may occur if you set the
Print Quality too low.
The type of paper specified in the
printer driver does not match the
type loaded in the printer.

Colors in printed images are uneven

Line Drawing/Text is selected
when printing images in many sol-
id colors.
You are printing on paper that
curls easily.
12
Printed colors may be uneven if
you set the Print Quality too low.
Color may be uneven between dark
and light image areas.
When borderless printing is used,
786
the edge of the paper is cut during
printing. Thus, ink density may be
slightly uneven at the leading
edges.
The Printhead is out of alignment.
Allowing printed documents to dry
on top of each other may cause un-
even colors.
Colors in printed images are uneven
> Problems with the printing quality
Cause
Cause
In Print Priority in the Advanced Settings of the printer driver, choose Im-
age.
Printed colors may appear uneven on the leading edge of paper that is suscep-
tible to curling. 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 (VacuumStrngth).")
Choose a higher level of Print Quality in the Advanced Settings of the
printer driver.
Printing in Draft or Standard mode is faster and consumes less ink than in
Highest or High modes, but the printing quality is lower.
(See "Giving Priority to Particular Graphic Elements and Colors for Print-
ing.")
Select Unidirectional Printing in the Advanced Settings of the printer driv-
er.
Specify No in Auto Cut 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 Print-
ing.")
Adjust the Printhead alignment.
(See "Automatic Adjustment to Straighten Lines and Colors (Head Posi.
Adj.).")
To avoid uneven colors, we recommend drying each sheet separately.
>
Corrective Action
(See "Automatic Adjustment to Straighten Lines and Colors (Head
Posi. Adj.).")
→P.620
Print a test pattern to check the nozzles and see if they are clogged.
(See "Checking for Nozzle Clogging.")
Choose a higher level of Print Quality in the Advanced Settings of the
printer driver and try printing again.
Printing in Draft or Standard mode is faster and consumes less ink than in
Highest or High modes, but the printing quality is lower.
(See "Giving Priority to Particular Graphic Elements and Colors for
Printing.")
→P.50
Load paper of the same type as you have specified in the printer driver.
(See "Loading Rolls in the Printer.")
(See "Loading Sheets 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.
Corrective Action
→P.50
→P.50
→P.620
→P.741
→P.588
→P.609
→P.635
iPF755