Problems With The Printing Quality; Printing Is Faint; Paper Rubs Against The Printhead - Canon imagePROGRAF iPF765 User Manual

Printing is faint

Problems with the printing quality

Problems with the printing quality
Printing is faint .............................................................................................................................................. 606

Paper rubs against the Printhead ................................................................................................................ 606

The edges of the paper are dirty ................................................................................................................. 607
The surface of the paper is dirty .................................................................................................................. 608
The back side of the paper is dirty .............................................................................................................. 608
Printed colors are inaccurate ....................................................................................................................... 608
Banding in different colors occurs ............................................................................................................... 608
Colors in printed images are uneven ........................................................................................................... 609
Image edges are blurred or white banding occurs ..................................................................................... 610
The contrast becomes uneven during printing ............................................................................................ 610
The length of printed images is inaccurate in the feeding direction ............................................................ 610
Images are printed crooked ......................................................................................................................... 610
Documents are printed in monochrome ...................................................................................................... 611
Line thickness is not uniform ........................................................................................................................ 611
Lines are misaligned .................................................................................................................................... 611
Printing is faint
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 without ink
tanks installed for some time, ink has be-
come clogged in the ink supply system.
Paper is jammed inside the Top Cover.
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 Fast.
You are printing on paper that tends to
generate dust when cut.
Paper rubs against the Printhead Paper rubs against the Printhead
Cause
The type of paper specified in the printer
606
driver does not match the type loaded in
the printer.
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.
(See "Clearing Jammed Roll Paper.")
(See "Clearing a Jammed Sheet.")
3.
Close the Top Cover.
Specify a longer drying period in the Control Panel menu, in Paper Details > Roll Drying-
Time.
(See "Menu Settings.")
→P.450
In Advanced Settings of the printer driver, choose Highest or High in Print Quality.
Printing in Fast 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 Printing.")
In the Control Panel menu, set CutDustReduct. in Paper Details to On.
(See "Reducing Dust from Cutting Rolls.")
Load paper of the same type as you have specified in the printer driver.
(See "Loading Rolls in the Printer.")
(See "Loading Sheets in the Printer.")
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.
Corrective Action
→P.570
→P.571
→P.598
→P.600
→P.417
Corrective Action
→P.401
→P.419
iPF765
→P.58
User's Guide