Canon imagePROGRAF iPF770 MFP M40 User Guide - Page 538

Problems with the printing quality, Printing is faint

Page 538 highlights

Printing is faint iPF770 Problems with the printing quality Printing is faint ...538 Paper rubs against the Printhead ...539 The edges of the paper are dirty ...539 The surface of the paper is dirty ...540 The back side of the paper is dirty ...540 Printed colors are inaccurate ...540 Banding in different colors occurs ...541 Colors in printed images are uneven ...541 Image edges are blurred or white banding occurs 542 The contrast becomes uneven during printing 542 The length of printed images is inaccurate in the feeding direction 543 Images are printed crooked ...543 Documents are printed in monochrome ...543 Line thickness is not uniform ...543 Lines are misaligned ...543 Printing is faint Cause You may be printing on the wrong side of the paper. Print on the printing surface. Corrective Action Troubleshooting The Printhead nozzles are clog- Print a test pattern to check the nozzles and see if they are clogged. ged. (See "Checking for Nozzle Clogging.") ➔P.502 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.416 Problems with the printing quality Because the printer was left without ink tanks installed for some time, ink has become 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.") ➔P.503 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.") ➔P.527 (See "Clearing a Jammed Sheet.") ➔P.530 3. Close the Top Cover. The ink was not dry when paper Specify a longer drying period in the Control Panel menu, in Paper Details > Roll DryingTime. was cut. (See "Menu Settings.") ➔P.416 Printing may be faint if Print In Advanced Settings of the printer driver, choose Highest or High in Print Quality. 538 Quality in Advanced Settings Printing in Fast or Standard mode is faster and consumes less ink than in Highest or High in the printer driver is set to modes, but the printing quality is lower. Standard or Fast. (See "Giving Priority to Particular Graphic Elements and Colors for Printing.") ➔P.52 You are printing on paper that In the Control Panel menu, set CutDustReduct. in Paper Details to On. tends to generate dust when cut. (See "Reducing Dust from Cutting Rolls.") ➔P.338 User's Guide

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Problems with the printing quality
Problems with the printing quality
Printing is faint
................................................................................................................................................
538
Paper rubs against the Printhead
....................................................................................................................
539
The edges of the paper are dirty
.....................................................................................................................
539
The surface of the paper is dirty
.....................................................................................................................
540
The back side of the paper is dirty
..................................................................................................................
540
Printed colors are inaccurate
..........................................................................................................................
540
Banding in different colors occurs
...................................................................................................................
541
Colors in printed images are uneven
...............................................................................................................
541
Image edges are blurred or white banding occurs
..........................................................................................
542
The contrast becomes uneven during printing
................................................................................................
542
The length of printed images is inaccurate in the feeding direction
..................................................................
543
Images are printed crooked
............................................................................................................................
543
Documents are printed in monochrome
..........................................................................................................
543
Line thickness is not uniform
..........................................................................................................................
543
Lines are misaligned
.......................................................................................................................................
543
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 clog-
ged.
Print a test pattern to check the nozzles and see if they are clogged.
(See "Checking for Nozzle Clogging.")
P.502
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 warn-
ing.
(See "Menu Settings.")
P.416
Because the printer was left
without ink tanks installed for
some time, ink has become
clogged in the ink supply sys-
tem.
After the ink tanks have been installed for 24 hours, run
Head Cleaning B
from the Control Pan-
el.
(See "Cleaning the Printhead.")
P.503
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.")
P.527
(See "Clearing a Jammed Sheet.")
P.530
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.")
P.416
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
or
High
in
Print Quality
.
Printing in
Fast
or
Standard
mode is faster and consumes less ink than in
Highest
or
High
modes, but the printing quality is lower.
(See "Giving Priority to Particular Graphic Elements and Colors for Printing.")
P.52
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.")
P.338
Printing is faint
iPF770
User's Guide
Troubleshooting
Problems with the printing quality
538