Canon ImagePROGRAF iPF680 User Manual

Also see for ImagePROGRAF iPF680: User guide User guide Service guide User guide

Problems with the printing qualityProblems with the printing qualityPrinting is faint ........................................................................................................................................................................ 591Paper rubs against the Printhead ................................................................................................................................... 591The edges of the paper are dirty .................................................................................................................................... 592The surface of the paper is dirty .................................................................................................................................... 593The back side of the paper is dirty ................................................................................................................................ 593Printed colors are inaccurate ............................................................................................................................................ 593Banding in different colors occurs ................................................................................................................................. 594Colors in printed images are uneven ............................................................................................................................. 594Image edges are blurred or white banding occurs .................................................................................................. 595The contrast becomes uneven during printing ......................................................................................................... 595The length of printed images is inaccurate in the feeding direction ............................................................... 596Images are printed crooked ............................................................................................................................................... 596Documents are printed in monochrome ...................................................................................................................... 596Line thickness is not uniform ............................................................................................................................................ 596Lines are misaligned .............................................................................................................................................................. 597Printing is faintPrinting is faintCause Corrective ActionYou may be printing on the wrong sideof 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.549Because the printer was left without inktanks installed for some time, ink hasbecome clogged in the ink supply sys-tem.After the ink tanks have been installed for 24 hours, run Head Cleaning B from the ControlPanel.(See "Cleaning the Printhead.") ➔ P.550Paper 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.579(See "Clearing a Jammed Sheet.") ➔ P.5823. Close the Top Cover.The ink was not dry when paper wascut.Specify a longer drying period in the Control Panel menu, in Paper Details > Roll DryingTime.(See "Menu Settings.") ➔ P.456Printing may be faint if Print Quality inAdvanced Settings in the printer driv-er 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 Highmodes, but the printing quality is lower.(See "Giving Priority to Particular Graphic Elements and Colors for Printing.") ➔ P.58You are printing on paper that tends togenerate dust when cut.In the Control Panel menu, set CutDustReduct. in Paper Details to On.(See "Reducing Dust from Cutting Rolls.") ➔ P.391Paper rubs against the PrintheadPaper rubs against the PrintheadCause Corrective ActionThe type of paper specified in theprinter driver does not match the typeloaded 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.392iPF680 Printing is faintUser's GuideTroubleshooting Problems with the printing quality591