Problems with the printing quality
Printing is faint .................................................................................................................................................
786
Paper rubs against the Printhead ...................................................................................................................
787
The edges of the paper are dirty ....................................................................................................................
788
The surface of the paper is dirty .....................................................................................................................
788
The back side of the paper is dirty .................................................................................................................
789
Printed colors are inaccurate ..........................................................................................................................
789
Banding in different colors occurs ..................................................................................................................
790
Colors in printed images are uneven ..............................................................................................................
790
Image edges are blurred or white banding occurs ........................................................................................
791
The contrast becomes uneven during printing ...............................................................................................
792
The length of printed images is inaccurate in the feeding direction ..............................................................
792
Images are printed crooked ...........................................................................................................................
792
Documents are printed in monochrome .........................................................................................................
793
Line thickness is not uniform ...........................................................................................................................
793
Lines are misaligned .......................................................................................................................................
793
Problems with the printing quality caused by the type of paper ....................................................................
794
Printing is faint
Cause
Corrective Action
You may be printing on the wrong
side of the paper.
Print on the printing surface.
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
Because the printer was left without
ink tanks installed for some time,
ink has become clogged in the ink
supply system.
After the ink tanks have been installed for 24 hours, run
Head Cleaning B
from
the Control Panel.
(See "
Cleaning the Printhead
.")
→P.740
Paper is jammed inside the Top
Cover.
Follow the steps below to remove the jammed piece of paper inside the Top
Cover.
1.
Open the Top Cover and make sure the Carriage is not over the Platen.
2.
Remove any scraps of paper inside the Top Cover.
(See "
Clearing Jammed Roll Paper
.")
→P.773
(See "
Clearing a Jammed Sheet
.")
→P.777
3.
Close the Top Cover.
The ink was not dry when paper
was cut.
Specify a longer drying period in the Control Panel menu, in
Paper Details
>
Roll DryingTime
.
(See "
Menu Settings
.")
→P.673
Printing may be faint if
Quality
in
Advanced Settings
in
the printer driver is set to
Standard
or
Draft
.
In
Advanced Settings
of the printer driver, choose
Highest
or
High
in
Quality
.
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
Troubleshooting
>
Problems with the printing quality
>
Printing is faint
iPF750
11
786
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 ...