Problems With The Printing Quality; Printing Is Faint - Canon imagePROGRAF iPF755 User Manual

Troubleshooting

Problems with the printing quality

Printing is faint ................................................................................................................................................. 838

Paper rubs against the Printhead .................................................................................................................... 839
The edges of the paper are dirty ..................................................................................................................... 840
The surface of the paper is dirty ...................................................................................................................... 840
The back side of the paper is dirty .................................................................................................................. 841
Printed colors are inaccurate ........................................................................................................................... 841
Banding in different colors occurs ................................................................................................................... 842
Colors in printed images are uneven ............................................................................................................... 842
Image edges are blurred or white banding occurs .......................................................................................... 843
The contrast becomes uneven during printing ................................................................................................ 844
The length of printed images is inaccurate in the feeding direction ................................................................ 844
Images are printed crooked ............................................................................................................................. 845
Documents are printed in monochrome .......................................................................................................... 845
Line thickness is not uniform ........................................................................................................................... 845
Lines are misaligned ....................................................................................................................................... 845
Problems with the printing quality caused by the type of paper ...................................................................... 846
Printing is faint
You may be printing on the wrong
side of the paper.
The Printhead nozzles are clogged.
Because the printer was left without
ink tanks installed for some time,
ink has become clogged in the ink
12
supply system.
Paper is jammed inside the Top
Cover.
838
The ink was not dry when paper
was cut.
Printing may be faint if Print
Quality in Advanced Settings in
the printer driver is set to Standard
or Draft.
Printing is faint
> Problems with the printing quality
Cause
Print on the printing surface.
Print a test pattern to check the nozzles and see if they are clogged.
(See "Checking for Nozzle Clogging.")
After the ink tanks have been installed for 24 hours, run Head Cleaning B from
the Control Panel.
(See "Cleaning the Printhead.")
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.
3. Close the Top Cover.
Specify a longer drying period in the Control Panel menu, in Paper Details >
Roll DryingTime.
(See "Menu Settings.")
In Advanced Settings of the printer driver, choose Highest or High in Print
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.")
>
Corrective Action
(See "Clearing Jammed Roll Paper.")
(See "Clearing a Jammed Sheet.")
→P.716
→P.54
→P.795
→P.796
→P.826
→P.830
iPF755