Canon ImagePrograf iPF840 series Basic Manual

Also see for imagePROGRAFi iPF840 series: Setup guide User guide Quick guide

Contents

Cause Corrective ActionColors have not been adjusted on the computeror monitor. Adjust the settings of the color management software, referring to the softwaredocumentation as needed.The Printhead nozzles are clogged. Print a test pattern to check the nozzles and see if they are clogged.(See "Checking for Nozzle Clogging.") ➔ User's GuideApplication Color Matching Priority is set toOff in the Windows printer driver.Click Special Settings in the Layout sheet of the printer driver, and set Applica-tion Color Matching Priority to On in the dialog box that is displayed.(See "Layout Sheet (Windows).") ➔ User's GuideColor may change slightly even on the samemodel of printer if you use a different version ofthe firmware or printer driver, or when you printunder different settings or in a different printingenvironment.Follow these steps to prepare the printing environment.1. Use the same version of firmware or printer driver.2. Specify the same value for all settings items.Banding in different colors occursBanding in different colors occursCause Corrective ActionThe paper feed amount is out of ad-justment.Adjust the feed amount.(See "Adjusting the Feed Amount.") ➔ User's GuidePrinting does not proceed smoothlybecause print jobs are interruptedduring transmission.Exit other applications and cancel other print jobs.In the Control Panel menu, Adj. Pri-ority is set to Print Length.Setting Adj. Priority to Print Quality in the Control Panel menu and adjusting the feedamount may improve results.(See "Adjusting the Feed Amount.") ➔ User's GuideThe Printhead is out of alignment. Adjust the Printhead alignment.(See "Automatic Adjustment to Straighten Lines and Colors.") ➔ P.92The Printhead nozzles are clogged. Print a test pattern to check the nozzles and see if they are clogged.(See "Checking for Nozzle Clogging.") ➔ User's GuideStreaks may occur if you set thePrint Quality too low.Choose a higher level of Print Quality in the Advanced Settings of the printer driver andtry printing again.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 Print-ing.") ➔ User's GuideThe 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.15(See "Loading Sheets in the Printer.") ➔ P.25Make sure the same type of paper is specified in the printer driver as you have loaded in theprinter.1. Press the Stop button and stop printing.2. Change the type of paper in the printer driver and try printing again.Colors in printed images are unevenColors in printed images are unevenCause Corrective ActionLine Drawing/Text is selected whenprinting images in many solid colors.In Print Priority in the Advanced Settings of the printer driver, choose Image.You are printing on paper that curlseasily.Printed colors may appear uneven on the leading edge of paper that is susceptible to curling.Select a stronger level in VacuumStrngth in the Control Panel menu to increase suctionagainst the paper, or specify a leading margin of 20 mm (0.79 in) or more.(See "Adjusting the Vacuum Strength.") ➔ User's GuidePrinted colors may be uneven if youset the Print Quality too low.Choose a higher level of Print Quality in the Advanced Settings of the printer driver.Printing in Fast or Standard mode is faster and consumes less ink than in Highest or Highmodes, but the printing quality is lower.iPF840 Series Banding in different colors occursBasic GuideTroubleshooting Problems with the printing quality113