Banding In Different Colors Occurs; Colors In Printed Images Are Uneven - Canon iPF755 User Manual

Troubleshooting > Problems with the printing quality
Color may change slightly even on the same mod-
el of printer if you use a different version of the
firmware or printer driver, or when you print un-
der different settings or in a different printing en-
vironment.

Banding in different colors occurs

The paper feed amount is out of ad-
justment.
Printing does not proceed smoothly
because print jobs are interrupted dur-
ing transmission.
In the Control Panel menu, Adj. Pri-
ority 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
12
loaded in the printer.

Colors in printed images are uneven

858
Line Drawing/Text is selected
when printing images in many solid
colors.
You are printing on paper that curls
easily.
Banding in different colors occurs
>
Cause
Cause
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 adjust-
ing 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 print-
er 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 Print-
ing.")
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.
Cause
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 suscepti-
ble 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.
Corrective Action
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.
Corrective Action
→P.677
→P.60
Corrective Action
→P.686
→P.686
→P.807
→P.637
→P.660
iPF755