Problems With The Printing Quality; Printing Is Faint; Paper Rubs Against The Printhead - Canon iPF8400 Basic Manual

iPF8400

Problems with the printing quality

Problems with the printing quality
Printing is faint ............................................................................................................................................................... 113
Paper rubs against the printhead .......................................................................................................................... 113
The edges of the paper are dirty .......................................................................................................................... 114
The surface of the paper is dirty ........................................................................................................................... 115
The back side of the paper is dirty ....................................................................................................................... 115
Immediately after borderless printing, the trailing edge margin is soiled during regular printing ............................ 116
Printed colors are inaccurate .................................................................................................................................. 116
Banding in different colors occurs ....................................................................................................................... 116
Colors in printed images are uneven ................................................................................................................... 117
Image edges are blurred or white banding occurs ........................................................................................ 118
Setting the Blue Switch on the Platen .......................................................................................................... 118
The contrast becomes uneven during printing ............................................................................................... 121
The length of printed images is inaccurate in the feeding direction ..................................................... 121
Images are printed crooked ..................................................................................................................................... 122
Documents are printed in monochrome ............................................................................................................ 122
Line thickness is not uniform .................................................................................................................................. 122
Lines or colors are misaligned ................................................................................................................................ 123
Borders appear in borderless printing ................................................................................................................ 123

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
become clogged in the ink supply sys-
tem.
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 print-
er driver does not match the type loa-
ded in the printer.
Basic 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.")
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.") User's Guide
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.")
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.
Corrective Action
→
User's Guide
→
P.55
→
P.102
→
P.105
→
User's Guide
Corrective Action
→
P.11
→
P.18
Printing is faint
→
User's Guide
113