Print quality trouble, Print quality trouble -29, Printing is faint – Canon W8400 User Manual

Page 376: Index contents

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6- 29

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Unexpected Printing Results

TOP

Chapter 3
Printing by Objective

Chapter 4
Maintenance

Chapter 5

Using the Printer

in a Network

Environment

Chapter 6
Troubleshooting

Chapter 7
Operating the
Function Menu

Index

Contents

Chapter 2
Using Various Media

Chapter 1
Basic Use

Print quality trouble

Printing is faint

Cause 1:

Printing on the wrong side of the sheet.

Solution 1: Check the front and back side of the media. If

you print on the other side of the media, you will
not achieve the correct results in printing.

Cause 2:

If you frequently change the type of Bk ink, the
Bk ink may become patchy.

Solution 1: Execute Head Cleaning B. (

P.4-39

)

Cause 3:

Printhead nozzles are jammed.

Solution 1: Print a nozzle check pattern to confirm the

condition of the printhead. If a printhead nozzle
is blocked, do the printhead cleaning
procedure. (

P.4-37

,

P.4-39

)

Solution 2: If only yellow appears smeared, you may be

able to correct this by selecting on the operation
panel Med. Detail Set.

Correct SmearOn.

(

P.1-21

)

Cause 4:

A printout is in the output stacker.

Solution 1: The capacity of the output stacker is limited to

one printout. Start the next print job only after
you have removed the previous printout from
the output stacker.

Cause 5:

The ink port needle is stuck and the ink has
clogged.

Solution 1: Leave the printer with the ink tanks installed for

more than 24 hours and then execute Head
Cleaning B
. (

P.4-39

)

Cause 6:

A piece of jammed sheet remains under the top
cover.

Solution 1: Follow the procedure below to remove paper

scraps from under the top cover.

1. Press the Online button to display Offline.
2. Press and hold [

] for at least 1 sec. to

move the carriage to the center.

3. Open the top cover.
4. Remove all the paper scraps under the top

cover.

Cause 7:

The ink was not dry enough for cutting during
borderless printing.

Solution 1: Use the operation panel to lengthen the settings

for Drying_Time in the Med.Detail Set..

Cause 8:

You may be using the wrong type of black ink
tank.

Solution 1: Use a new black ink tank, and then perform the

ChangeBkInkType procedure again.
(

P.4-48

)

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