Image Edges Are Blurred Or White Banding Occurs; The Contrast Becomes Uneven During Printing - Canon iPF785 User Manual

iPF785
Cause
When borderless printing is used, the
edge of the paper is cut during printing.
Thus, ink density may be slightly uneven
at the leading edges.
The Printhead is out of alignment.
Allowing printed documents to dry on top
of each other may cause uneven colors.
Density may be uneven if you use Glos-
sy Paper or Coated Paper.
The type of paper specified in the printer
driver does not match the type loaded in
the printer.
Scan Wait Time > Area in the Control
Panel menu is set to Leading edge.

Image edges are blurred or white banding occurs

Image edges are blurred or white banding occurs

Cause
The Platen suction is too strong.
Incorrect Printhead alignment value.
The type of paper specified in the printer
driver does not match the type loaded in
the printer.

The contrast becomes uneven during printing

The contrast becomes uneven during printing

Cause
The paper feed amount is out of adjustment.
The type of paper specified in the printer driver
does not match the type loaded in the printer.
User's Guide
Specify No in Auto Cut in the printer driver before printing. In this case, the paper can be
printed without borders on the left and right sides only. Cut the printed document ejected from
the printer, and then use scissors or a cutting tool to cut away the edges on the top and bot-
tom.
Choose a higher level of Print Quality in the Advanced Settings of the printer driver.
(See "Giving Priority to Particular Graphic Elements and Colors for Printing.")
Adjust the Printhead alignment.
(See "Automatic Adjustment to Straighten Lines and Colors.")
To avoid uneven colors, we recommend drying each sheet separately.
In Advanced Settings of the printer driver, choose Highest or High in Print Quality.
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.
1.
Press the Stop button and stop printing.
2.
Change the type of paper in the printer driver and try printing again.
When Scan Wait Time > Area is set to Leading edge, colors may be uneven 110–140 mm
from the leading edge. (The position varies depending on the Print Quality setting.)
In this case, select Scan Wait Time > Area > Entire area.
However, note that printing will now take longer.
(See "Menu Settings.")
P.457
➔
In the Control Panel menu, reduce the level of VacuumStrngth.
(See "Adjusting the Vacuum Strength.")
In the Control Panel menu, set Head Height to a lower height.
(See "Troubleshooting Paper Abrasion and Blurry Images.")
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.
1. Press the Stop button and stop printing.
2.
Change the type of paper in the printer driver and try printing again.
Adjust the feed amount.
(See "Adjusting the Feed Amount.")
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.
Image edges are blurred or white banding occurs
Corrective Action
P.572
➔
P.375
➔
P.394
➔
Corrective Action
P.585
➔
P.578
➔
P.375
➔
P.394
➔
Corrective Action
P.579
➔
P.375
➔
P.394
➔
P.58
➔
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