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Cause Corrective Action
The Printhead is out of alignment.
(See "Automatic Adjustment to Straighten Lines and Colors.")
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P.97
The Printhead nozzles are clogged. Print a test pattern to check the nozzles and see if they are clogged.
(See "Checking for Nozzle Clogging.")
→
User's Guide
Streaks may occur if you set the Print
Quality too low.
Choose a higher level of Print Quality in the Advanced Settings of the printer driver and try
printing again.
Printing in Fast or Standard mode is faster and consumes less ink than in Highest quality or
High modes, but the printing quality is lower.
(See "Giving Priority to Particular Graphic Elements and Colors for Printing.")
→
User's Guide
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.")
→
P.11
(See "Loading Sheets in the Printer.")
→
P.18
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.
Colors in printed images are uneven
Colors in printed images are uneven
Cause Corrective Action
Line Drawing/Text is selected when
printing images in many solid colors.
In Print Priority in the Advanced Settings of the printer driver, choose Image.
You are printing on paper that curls easi-
ly.
Printed colors may appear uneven on the leading edge of paper that is susceptible to curling.
Select a stronger level in VacuumStrngth in the Control Panel menu to increase suction
against the paper, or specify a leading margin of 20 mm (0.79 in) or more.
(See "Adjusting the Vacuum Strength.")
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User's Guide
Printed colors may be uneven if you set
the Print Quality too low.
Choose a higher level of Print Quality in the Advanced Settings of the printer driver.
Printing in Fast or Standard mode is faster and consumes less ink than in Highest quality or
High modes, but the printing quality is lower.
(See "Giving Priority to Particular Graphic Elements and Colors for Printing.")
→
User's Guide
Color may be uneven between dark and
light image areas.
Select Unidirectional Printing in the Advanced Settings of the printer driver.
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.
Specify No in Automatic Cutting 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 ejec-
ted from the printer, and then use scissors or a cutting tool 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.
(See "Giving Priority to Particular Graphic Elements and Colors for Printing.")
→
User's Guide
The Printhead is out of alignment. Adjust the Printhead alignment.
(See "Automatic Adjustment to Straighten Lines and Colors.")
→
P.97
Allowing printed documents to dry on top
of each other may cause uneven colors.
To avoid uneven colors, we recommend drying each sheet separately.
Density may be uneven if you use Glossy
Paper or Canon Coated Paper.
In Advanced Settings of the printer driver, choose Highest quality or High in Print Quality.
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.")
→
P.11
(See "Loading Sheets in the Printer.")
→
P.18
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.
Scan Wait Time > Area in the Control
Panel menu is set to Leading edge.
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.)
iPF8400
Colors in printed images are uneven
Basic Guide
Troubleshooting Problems with the printing quality
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