Cause
Corrective Action
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.
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.
Banding in different colors occurs
Cause
Corrective Action
The paper feed amount is out of ad-
justment.
Adjust the feed amount.
(See "
Adjusting the Feed Amount
.")
→P.628
Printing does not proceed smoothly
because print jobs are interrupted dur-
ing transmission.
Exit other applications and cancel other print jobs.
In the Control Panel menu,
Adj. Pri-
ority
is set to
Print Length
.
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
.")
→P.628
The Printhead is out of alignment.
Adjust the Printhead alignment.
(See "
Automatic Adjustment to Straighten Lines and Colors (Head Posi.
Adj.)
.")
→P.619
The Printhead nozzles are clogged.
Print a test pattern to check the nozzles and see if they are clogged.
(See "
Checking for Nozzle Clogging
.")
→P.739
Streaks may occur if you set the
Quality
too low.
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
.")
→P.60
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.579
(See "
Loading Sheets in the Printer
.")
→P.602
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
Cause
Corrective Action
Line Drawing/Text
is selected
when printing 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 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.
Troubleshooting
>
Problems with the printing quality
>
Banding in different colors occurs
iPF750
11
790
Summary of Contents for imagePROGRAF iPF750 MFP M40
Page 626: ...6 Pull the Release Lever forward Handling Paper Handling sheets Removing Sheets iPF750 5 610 ...
Page 654: ...Printer Parts Printer parts 639 Optional accessories 647 Printer Parts iPF750 7 638 ...
Page 664: ...Control Panel Operations and Display Screen 649 Printer Menu 659 Control Panel iPF750 8 648 ...
Page 850: ...Specifications Printer Specifications 835 Specifications iPF750 13 834 ...
Page 855: ...Appendix How to use this manual 840 Disposal of the product 850 Appendix iPF750 14 839 ...
Page 866: ...Disposal of the product WEEE Directive 851 Appendix Disposal of the product iPF750 14 850 ...
Page 867: ...WEEE Directive Appendix Disposal of the product iPF750 WEEE Directive 14 851 ...
Page 868: ...Appendix Disposal of the product WEEE Directive iPF750 14 852 ...
Page 869: ...Appendix Disposal of the product iPF750 WEEE Directive 14 853 ...
Page 870: ...Appendix Disposal of the product WEEE Directive iPF750 14 854 ...
Page 871: ...Appendix Disposal of the product iPF750 WEEE Directive 14 855 ...
Page 872: ...Appendix Disposal of the product WEEE Directive iPF750 14 856 ...
Page 873: ...Appendix Disposal of the product iPF750 WEEE Directive 14 857 ...
Page 874: ...Appendix Disposal of the product WEEE Directive iPF750 14 858 ...
Page 875: ...Appendix Disposal of the product iPF750 WEEE Directive 14 859 ...
Page 877: ......
Page 878: ... CANON INC 2011 ...