Canon imagePROGRAF iPF825 Basic Guide No.2 Basic Manual page 10

Troubleshooting
Phenomenon
Colors in printed images are
uneven
Cause
Line Drawing/Text is selected
when printing images in many solid
colors.
You are printing on paper that curls
easily.
Printed colors may be uneven if
you set the Print Quality too low.
Color may be uneven between
dark and light image areas.
When borderless printing is used,
the edge of the paper is cut during
printing. Thus, ink density may be
slightly uneven at the edges.
The Printhead is out of alignment.
Drying documents stacked on
each other may cause uneven
colors.
Color density may be uneven if
you use Glossy Paper , art 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 .
10
Corrective Action
Specify Image in the printer driver.
Printed colors may appear uneven on the leading
edge of paper that is susceptible to curling. Increase
the level of suction holding the paper against the
Platen or specify a margin of 20 mm (0.79 in.) or
more for the leading edge.
(→"Adjusting the Vacuum Strength (VacuumStrngth),"
User Manual)
Choose a higher level of Print Quality in the
Advanced Settings of the printer driver.
Printing in Draft or Standard mode is faster and
consumes less ink than in Highest or High modes,
but the printing quality is lower.
(→"Giving Priority to Particular Graphic Elements and
Colors for Printing," User Manual)
Select Unidirectional Printing in the Advanced
Settings of the printer driver.
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, then use scissors
to cut away the edges on the top and bottom.
Choose a higher level of Print Quality in the
Advanced Settings of the printer driver.
(→"Giving Priority to Particular Graphic Elements and
Colors for Printing," User Manual)
Adjust the Printhead alignment.
(→ , If Vertical Lines are Warped or Colors are
Misaligned)
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.
(→ , Loading Rolls in the Printer)
(→ , 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. Hold down the Stop button for a second or more to
cancel 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 110–160 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.
(→"Main Menu Settings," User Manual)