Problems with the printing qualityProblems with the printing qualityPrinting is faint ................................................................................................................................................................. 582Paper rubs against the Printhead ............................................................................................................................ 582The edges of the paper are dirty ............................................................................................................................. 583The surface of the paper is dirty ............................................................................................................................. 584The back side of the paper is dirty ......................................................................................................................... 584Printed colors are inaccurate ..................................................................................................................................... 584Banding in different colors occurs ........................................................................................................................... 585Colors in printed images are uneven ...................................................................................................................... 585Image edges are blurred or white banding occurs ........................................................................................... 586The contrast becomes uneven during printing .................................................................................................. 586The length of printed images is inaccurate in the feeding direction ........................................................ 586Images are printed crooked ........................................................................................................................................ 587Documents are printed in monochrome ............................................................................................................... 587Line thickness is not uniform ..................................................................................................................................... 587Lines are misaligned ....................................................................................................................................................... 587Printing is faintPrinting is faintCause Corrective ActionYou may be printing on the wrongside 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.544Because the printer was left withoutink tanks installed for some time, inkhas become clogged in the ink supplysystem.After the ink tanks have been installed for 24 hours, run Head Cleaning B from the ControlPanel.(See "Cleaning the Printhead.") ➔ P.545Paper is jammed inside the Top Cov-er.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.571(See "Clearing a Jammed Sheet.") ➔ P.5743. 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 Drying-Time.(See "Menu Settings.") ➔ P.416Printing may be faint if Print Qualityin Advanced Settings in the printerdriver 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.54You are printing on paper that tendsto generate dust when cut.In the Control Panel menu, set CutDustReduct. in Paper Details to On.(See "Reducing Dust from Cutting Rolls.") ➔ P.356Paper 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.341(See "Loading Sheets in the Printer.") ➔ P.358Make sure the same type of paper is specified in the printer driver as you have loaded in theprinter.Printing is faint iPF785User's GuideTroubleshooting Problems with the printing quality582
