Canon imagePROGRAF iPF6400 User Guide - Page 891

iPF6400 Printing is faint Problems with the printing quality Printing is faint ...891 Paper rubs against the printhead ...892 The edges of the paper are dirty ...892 The surface of the paper is dirty ...893 The back side of the paper is dirty ...893 Roller marks are left across the trailing edge of paper 893 Immediately after borderless printing, the trailing edge margin is soiled during regular printing 894 Printed colors are inaccurate ...894 Banding in different colors occurs ...894 Colors in printed images are uneven ...895 Image edges are blurred or white banding occurs 896 Setting the Blue Switch on the Platen ...896 The contrast becomes uneven during printing ...899 The length of printed images is inaccurate in the feeding direction 899 Images are printed crooked ...899 Documents are printed in monochrome ...900 Line thickness is not uniform ...900 Lines or colors are misaligned ...900 Borders appear during borderless printing ...901 Printing is faint Troubleshooting 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.845 After the ink tanks have been installed for 24 hours, run Head Cleaning B from the Control Panel. (See "Cleaning the Printhead.") →P.846 Follow the steps below to remove the jammed piece of paper inside the Top Cover. Problems with the printing quality 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.881 (See "Clearing a Jammed Sheet, Fed Manually.") →P.884 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 Draft. 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.648 In Advanced Settings of the printer driver, choose Highest or High in Print Quality. Printing in Draft 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.61 In the Control Panel menu, set CutDustReduct. in Paper Details to On. (See "Reducing Dust from Cutting Rolls.") →P.550 891 User's Guide