iPF850 User's Guide Ver.1.00

ManualsBrandsCanon ManualsiB SeriesimagePROGRAF iPF850

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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

easily.

Printed colors may appear uneven on the leading edge of paper that is susceptible to curl-

ing. Select a stronger level in VacuumStrngth in the Control Panel menu to increase suc-

tion against the paper, or specify a leading margin of 20 mm (0.79 in) or more.

(See "Adjusting the Vacuum Strength.") ➔ P.570

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 or

High modes, but the printing quality is lower.

(See "Giving Priority to Particular Graphic Elements and Colors for Printing.") ➔P.66

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 un-

even at the leading edges.

Specify No in Automatic Cutting in the printer driver before printing. In this case, the pa-

per can be printed without borders on the left and right sides only. Cut the printed docu-

ment ejected 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.") ➔P.66

The Printhead is out of alignment. Adjust the Printhead alignment.

(See "Automatic Adjustment to Straighten Lines and Colors.") ➔P.556

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 Coated Paper.

In Advanced Settings of the printer driver, choose Highest or High in Print Quality.

The type of paper specified in the print-

er driver does not match the type loa-

ded in the printer.

Load paper of the same type as you have specified in the printer driver.

(See "Loading Rolls in the Printer.") ➔P.345

(See "Loading Sheets in the Printer.") ➔P.369

Make sure the same type of paper is specified in the printer driver as you have loaded in

the printer.

Press the Stop button and stop printing.

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.)

In this case, select Scan Wait Time > Area > Entire area.

However, note that printing will now take longer.

(See "Menu Settings.") ➔P.449

Image edges are blurred or white banding occurs

Cause Corrective Action

The Platen suction is too strong. In the Control Panel menu, reduce the level of VacuumStrngth.

(See "Adjusting the Vacuum Strength.") ➔ P.570

Close the blue Switch on the platen so that it matches the paper size.

(See "Setting the Blue Switch on the Platen.") ➔P.638

Incorrect Printhead alignment value. In the Control Panel menu, set Head Height to a lower height.

(See "Troubleshooting Paper Abrasion and Blurry Images.") ➔ P.562

The type of paper specified in the

printer driver does not match the type

loaded in the printer.