The Contrast Becomes Uneven During Printing; The Length Of Printed Images Is Inaccurate In The Feeding Direction; Images Are Printed Crooked; Documents Are Printed In Monochrome - Canon iPF840 User Manual

The contrast becomes uneven during printing

7
Close the Top Cover.
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.
The type of paper specified in the printer
driver does not match the type loaded in
the printer.

Images are printed crooked

Images are printed crooked
In the Control Panel menu, Skew Check Lv. is set to Loose or Off.
In the Control Panel menu, Width Detection is set to Off.

Documents are printed in monochrome

Documents are printed in monochrome
In the Advanced Settings of the printer driver, Mon-
ochrome, Monochrome (BK ink), or Monochrome
624
Bitmap is specified in Color Mode.
The Printhead nozzles are clogged.
Cause
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 loa-
ded in the printer.
1.
2.
Cause
Set Adj. Priority to Print Length in the Control Panel menu, and then execute Adjust
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.
Cause
Cause
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.
In the Control Panel menu, set Skew Check Lv. to Standard.
Set Width Detection to On in the Control Panel menu.
In the Advanced Settings of the printer driver, specify Color in Color Mode
and try printing again.
Print a test pattern to check the color ink nozzles and see if they are clogged.
(See "Checking for Nozzle Clogging.")
Corrective Action
P.558
➔
P.345
➔
P.369
➔
Corrective Action
P.558
➔
P.345
➔
P.369
➔
Corrective Action
Corrective Action
P.577
➔
iPF840
User's Guide