Canon imagePROGRAF iPF680 User Guide - Page 591
Problems with the printing quality, Printing is faint, Paper rubs against the Printhead
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iPF680 Printing is faint Problems with the printing quality Printing is faint ...591 Paper rubs against the Printhead ...591 The edges of the paper are dirty ...592 The surface of the paper is dirty ...593 The back side of the paper is dirty ...593 Printed colors are inaccurate ...593 Banding in different colors occurs ...594 Colors in printed images are uneven ...594 Image edges are blurred or white banding occurs 595 The contrast becomes uneven during printing ...595 The length of printed images is inaccurate in the feeding direction 596 Images are printed crooked ...596 Documents are printed in monochrome ...596 Line thickness is not uniform ...596 Lines are misaligned ...597 Troubleshooting Problems with the printing quality Printing is faint Cause You may be printing on the wrong side of the paper. The Printhead nozzles are clogged. Because the printer was left without ink tanks installed for some time, ink has become clogged in the ink supply system. Paper is jammed inside the Top Cover. Print on the printing surface. Corrective Action Print a test pattern to check the nozzles and see if they are clogged. (See "Checking for Nozzle Clogging.") ➔P.549 After the ink tanks have been installed for 24 hours, run Head Cleaning B from the Control Panel. (See "Cleaning the Printhead.") ➔P.550 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.579 (See "Clearing a Jammed Sheet.") ➔P.582 3. Close the Top Cover. The ink was not dry when paper was cut. Printing may be faint if Print Quality in Advanced Settings in the printer driver is set to Standard or Fast. You are printing on paper that tends to generate dust when cut. Specify a longer drying period in the Control Panel menu, in Paper Details > Roll DryingTime. (See "Menu Settings.") ➔P.456 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.58 In the Control Panel menu, set CutDustReduct. in Paper Details to On. (See "Reducing Dust from Cutting Rolls.") ➔P.391 Paper rubs against the Printhead Cause Corrective Action 591 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.373 (See "Loading Sheets in the Printer.") ➔P.392 User's Guide