Problems With The Printing Quality; Printing Is Faint - Canon iPF8400S User Manual

iPF8400S

Problems with the printing quality

Problems with the printing quality

Printing is faint ................................................................................................................................................................ 863

Paper rubs against the printhead ........................................................................................................................... 864
The edges of the paper are dirty ............................................................................................................................ 864
The surface of the paper is dirty ............................................................................................................................ 865
The back side of the paper is dirty ........................................................................................................................ 865
Immediately after borderless printing, the trailing edge margin is soiled during regular printing ............................. 866
Printed colors are inaccurate .................................................................................................................................... 866
Banding in different colors occurs ......................................................................................................................... 866
Colors in printed images are uneven ..................................................................................................................... 867
Image edges are blurred or white banding occurs ......................................................................................... 868
Setting the Blue Switch on the Platen ............................................................................................................. 868
The contrast becomes uneven during printing ................................................................................................. 871
The length of printed images is inaccurate in the feeding direction ...................................................... 871
Images are printed crooked ...................................................................................................................................... 871
Documents are printed in monochrome .............................................................................................................. 871
Line thickness is not uniform .................................................................................................................................... 872
Lines or colors are misaligned .................................................................................................................................. 872
Borders appear in borderless printing .................................................................................................................. 873
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.591
➔
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 DryingTime.
(See "Menu Settings.")
P.591
➔
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.817
➔
P.818
➔
P.853
➔
P.856
➔
P.491
➔
Printing is faint
863
P.57
➔