Canon imagePROGRAF iPF760 - Manual (Page 613)

Problems with the printing quality Problems with the printing quality
Printing is faint .................................................................................................................................................... 613
Paper rubs against the Printhead ...................................................................................................................... 613
The edges of the paper are dirty ....................................................................................................................... 614
The surface of the paper is dirty ........................................................................................................................ 615
The back side of the paper is dirty .................................................................................................................... 615
Printed colors are inaccurate ............................................................................................................................. 615
Banding in different colors occurs ..................................................................................................................... 616
Colors in printed images are uneven ................................................................................................................. 616
Image edges are blurred or white banding occurs ........................................................................................... 617
The contrast becomes uneven during printing .................................................................................................. 617
The length of printed images is inaccurate in the feeding direction .................................................................. 618
Images are printed crooked ............................................................................................................................... 618
Documents are printed in monochrome ............................................................................................................ 618
Line thickness is not uniform .............................................................................................................................. 618
Lines are misaligned .......................................................................................................................................... 619
Printing is faint Printing is faint
Cause Corrective Action
You may be printing on the wrong side of
the paper. Print on the printing surface.
The Printhead nozzles are clogged. Print a test pattern to check the nozzles and see if they are clogged.
(See "Checking for Nozzle Clogging.")
→P.575
Because the printer was left without ink
tanks installed for some time, ink has be-
come clogged in the ink supply system. After the ink tanks have been installed for 24 hours, run Head Cleaning B from the Control Pan-
el.
(See "Cleaning the Printhead.")
→P.576
Paper is jammed inside the Top Cover. Follow the steps below to remove the jammed piece of paper inside the Top Cover.
1. Open the Top Cover and make sure the Carriage is not over the Platen.
2. Remove any scraps of paper inside the Top Cover.
(See "Clearing Jammed Roll Paper.")
→P.604
(See "Clearing a Jammed Sheet.") →P.607
3. Close the Top Cover.
The ink was not dry when paper was cut. Specify a longer drying period in the Control Panel menu, in Paper Details > Roll DryingTime.
(See "Menu Settings.")
→P.495
Printing may be faint if Print Quality in Ad-
vanced Settings in the printer driver is set
to Standard or Fast. In Advanced Settings of the printer driver, choose Highest or High in Print Quality.
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.63
You are printing on paper that tends to
generate dust when cut. In the Control Panel menu, set CutDustReduct. in Paper Details to On.
(See "Reducing Dust from Cutting Rolls.")
→P.460
Paper rubs against the Printhead Paper rubs against the Printhead
Cause Corrective Action
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.442
(See "Loading Sheets in the Printer.") →P.461
Make sure the same type of paper is specified in the printer driver as you have loaded in the print-
er.
iPF760 Printing is faint
User's Guide
Troubleshooting
Problems with the printing quality
613