Problems With The Printing Quality - Canon iPF825 User Manual

Problems with the printing quality

Printing is faint ........................................................................................................................................... 799
Paper rubs against the printhead .............................................................................................................. 800
The edges of the paper are dirty ............................................................................................................... 800
The surface of the paper is dirty ................................................................................................................ 801
The back side of the paper is dirty ............................................................................................................ 801
Printed colors are inaccurate ..................................................................................................................... 802
Banding in different colors occurs ............................................................................................................. 802
Colors in printed images are uneven ......................................................................................................... 803
Image Edges are Blurred or White Banding Occurs ................................................................................. 804
Setting the Blue Switch on the Platen ................................................................................................... 804
The contrast becomes uneven during printing .......................................................................................... 807
The length of printed images is inaccurate ................................................................................................ 807
Documents are printed crooked ................................................................................................................ 807
Documents are printed in monochrome .................................................................................................... 807
Line thickness is not uniform ..................................................................................................................... 808
Lines are misaligned ................................................................................................................................. 808
Problems with the printing quality caused by the type of paper ................................................................ 808
Printing is faint
Cause
You may be printing on the wrong
side of the paper.
The Printhead nozzles are clogged.
Because the printer was left with-
out ink tanks installed for some
time, ink has become clogged in
the ink supply system.
Paper is jammed inside the Top
Cover.
During borderless printing, the ink
was not dry enough before cutting.
Printing may be faint if Print
Quality in Advanced Settings in
the printer driver is set to Stand-
ard or Draft.
iPF825
Troubleshooting
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.
(See "Cleaning the Printhead.")
Follow the steps below to remove the jammed piece of paper inside the Top
Cover.
1. Press the Online button to bring the printer offline.
2. Open the Top Cover and make sure the Carriage is not over the Platen.
3. Remove any scraps of paper inside the Top Cover.
(See "Clearing Jammed Roll Paper.")
(See "Clearing a Jammed Sheet.")
4. Close the Top Cover.
Specify a longer drying period in the printer menu, in Roll DryingTime in
Paper Details.
(See "Main 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.")
→P.53
> Problems with the printing quality
Corrective Action
→P.754
→P.755
→P.786
→P.790
→P.679
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12
799
Printing is faint