Banding In Different Colors Occurs; Colors In Printed Images Are Uneven - Canon imagePROGRAF iPF765 Basic Manual

iPF765

Banding in different colors occurs

Banding in different colors occurs
Cause
The paper feed amount is out of adjust-
ment.
Printing does not proceed smoothly be-
cause print jobs are interrupted during
transmission.
In the Control Panel menu, Adj. Priority
is set to Print Length.
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

Colors in printed images are uneven
Cause
Line Drawing/Text is selected when
printing images in many solid colors.
You are printing on paper that curls easi-
ly.
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, 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 uneven colors.
Basic Guide
Adjust the feed amount.
(See "Adjusting the Feed Amount.")
Exit other applications and cancel other print jobs.
Setting Adj. Priority to Print Quality in the Control Panel menu and adjusting the feed
amount may improve results.
(See "Adjusting the Feed Amount.")
Adjust the Printhead alignment.
(See "Automatic Adjustment to Straighten Lines and Colors (Head Posi. Adj.).")
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 Fast 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.")
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.
In Print Priority in the Advanced Settings of the printer driver, choose Image.
Printed colors may appear uneven on the leading edge of paper that is susceptible 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 Fast 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.")
Select Unidirectional Printing in the Advanced Settings of the printer driver.
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 bot-
tom.
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.")
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.
Banding in different colors occurs
Corrective Action
→User's Guide
→User's Guide
→User's Guide
→P.12
→P.18
Corrective Action
→User's Guide
→P.77
→User's Guide
→User's Guide
→User's Guide
→P.77
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