Image Edges Are Blurred Or White Banding Occurs; The Contrast Becomes Uneven During Printing; The Length Of Printed Images Is Inaccurate In The Feeding Direction - Canon imageprograf ipf780 User Manual

Image edges are blurred or white banding occurs

Cause
The type of paper specified in the print-
er driver does not match the type loa-
ded 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 print-
er driver does not match the type loa-
ded in the printer.

The contrast becomes uneven during printing

The contrast becomes uneven during printing

The paper feed amount is out of adjustment.
The type of paper specified in the printer driv-
er does not match the type loaded in the
printer.

The length of printed images is inaccurate in the feeding direction

The length of printed images is inaccurate in the feeding direction

In the Control Panel menu, Adj. Priority is
set to Print Quality.
542 The type of paper specified in the printer
driver does not match the type loaded in
the printer.
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.")
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.
Cause
Adjust the feed amount.
Load paper of the same type as you have specified in the printer driver.
Make sure the same type of paper is specified in the printer driver as you have loa-
ded in the printer.
1.
2.
Cause
Set Adj. Priority to Print Length in the Control Panel menu, and then execute Ad-
just Length.
(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.
1.
2.
Corrective Action
➔
P.414
➔
Corrective Action
➔
(See "Adjusting the Feed Amount.")
(See "Loading Rolls in the Printer.")
(See "Loading Sheets in the Printer.")
Press the Stop button and stop printing.
Change the type of paper in the printer driver and try printing again.
Press the Stop button and stop printing.
Change the type of paper in the printer driver and try printing again.
P.339
P.356
➔
P.489
➔
P.481
➔
P.339
P.356
➔
Corrective Action
P.483
➔
P.339
➔
P.356
➔
Corrective Action
P.483
➔
P.339
➔
P.356
➔
iPF780
User's Guide