Canon imagePROGRAF iPF650 - Manual (Page 803)

Problems with the printing quality
Printing is faint ................................................................................................................................................. 787
Paper rubs against the Printhead ................................................................................................................... 788
The edges of the paper are dirty .................................................................................................................... 789
The surface of the paper is dirty ..................................................................................................................... 789
The back side of the paper is dirty ................................................................................................................. 790
Printed colors are inaccurate .......................................................................................................................... 790
Banding in different colors occurs .................................................................................................................. 791
Colors in printed images are uneven .............................................................................................................. 791
Image edges are blurred or white banding occurs ........................................................................................ 792
The contrast becomes uneven during printing ............................................................................................... 793
The length of printed images is inaccurate in the feeding direction .............................................................. 793
Images are printed crooked ........................................................................................................................... 793
Documents are printed in monochrome ......................................................................................................... 794
Line thickness is not uniform ........................................................................................................................... 794
Lines are misaligned ....................................................................................................................................... 794
Problems with the printing quality caused by the type of paper .................................................................... 795
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.740
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.741
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.774
(See "Clearing a Jammed Sheet.") →P.778
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.674
Printing may be faint if Print
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 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.60
Troubleshooting > Problems with the printing quality >
iPF650 Printing is faint
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787