Problems With The Printing Quality; Printing Is Faint - Canon iPF6400S User Manual

iPF6400S

Problems with the printing quality

Problems with the printing quality

Printing is faint ................................................................................................................................................................ 881

Paper rubs against the printhead ........................................................................................................................... 882
The edges of the paper are dirty ............................................................................................................................ 882
The surface of the paper is dirty ............................................................................................................................ 883
The back side of the paper is dirty ........................................................................................................................ 883
Roller marks are left across the trailing edge of paper ................................................................................ 883
Immediately after borderless printing, the trailing edge margin is soiled during regular printing ............................. 884
Printed colors are inaccurate .................................................................................................................................... 884
Banding in different colors occurs ......................................................................................................................... 884
Colors in printed images are uneven ..................................................................................................................... 885
Image edges are blurred or white banding occurs ......................................................................................... 886
Setting the Blue Switch on the Platen ............................................................................................................. 886
The contrast becomes uneven during printing ................................................................................................. 889
The length of printed images is inaccurate in the feeding direction ...................................................... 889
Images are printed crooked ...................................................................................................................................... 889
Documents are printed in monochrome .............................................................................................................. 889
Line thickness is not uniform .................................................................................................................................... 889
Lines or colors are misaligned .................................................................................................................................. 890
Borders appear during borderless printing ........................................................................................................ 890
Printing is faint
Printing is faint
Cause
You may be printing on the wrong
side of the paper.
The Printhead nozzles are clog-
ged.
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.
The ink was not dry when paper
was cut.
Printing may be faint if Print Qual-
ity 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.
User's Guide
Print on the printing surface.
Print a test pattern to check the nozzles and see if they are clogged.
(See "Checking for Nozzle Clogging.")
To check for nozzles after printing, set Frequency in Nozzle Check in the Control Panel menu to a
setting other than Off.
Furthermore, to have a warning displayed depending on the result of the nozzle check, set Warning
in Nozzle Check in the Control Panel menu to On.
Note that when Warning is set to On, printing may stop depending on the content of the warning.
(See "Menu Settings.")
P.587
➔
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, Fed Manually.")
3.
Close the Top Cover.
Specify a longer drying period in the Control Panel menu, in Paper Details > Roll DryingTime.
(See "Menu Settings.")
P.587
➔
In Advanced Settings of the printer driver, choose Highest quality or High in Print Quality.
Printing in Fast or Standard mode is faster and consumes less ink than in Highest quality 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.")
Corrective Action
P.824
➔
P.825
➔
P.870
➔
P.873
➔
P.491
➔
Printing is faint
881
P.57
➔