Canon iPF9400S Manual

Canon

Problems with the printing quality

Problems with the printing quality

Printing is faint .................................................................................................................................................... 896

Paper rubs against the printhead ...................................................................................................................... 897

The edges of the paper are dirty ....................................................................................................................... 897

The surface of the paper is dirty ........................................................................................................................ 898

The back side of the paper is dirty .................................................................................................................... 898

Immediately after borderless printing, the trailing edge margin is soiled during regular printing .............................................. 899
Printed colors are inaccurate ............................................................................................................................. 899

Banding in different colors occurs ..................................................................................................................... 899

Colors in printed images are uneven ................................................................................................................. 900

Image edges are blurred or white banding occurs ........................................................................................... 901

Setting the Blue Switch on the Platen ........................................................................................................... 901

The contrast becomes uneven during printing .................................................................................................. 904
The length of printed images is inaccurate in the feeding direction .................................................................. 904

Images are printed crooked ............................................................................................................................... 905

Documents are printed in monochrome ............................................................................................................ 905
Line thickness is not uniform .............................................................................................................................. 905

Lines or colors are misaligned ........................................................................................................................... 906
Borders appear in borderless printing ............................................................................................................... 906

Printing is faint

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.")

Because the printer was left without ink
tanks installed for some time, ink has be-
come 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.")

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.")

(See "Clearing a Jammed Sheet.")

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.")

Printing may be faint if Print Quality in
Advanced Settings in the printer driver is
set to Standard or Fast.

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.")

You are printing on paper that tends to
generate dust when cut.

In the Control Panel menu, set CutDustReduct. in Paper Details to On.

(See "Reducing Dust from Cutting Rolls.")

Printing is faint

iPF9400S

Troubleshooting

Problems with the printing quality

896