Canon imagePROGRAF iPF6450 User Guide - Page 989
The surface of the paper is dirty, Roller marks are left across the trailing edge of paper
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iPF6450 The surface of the paper is dirty Cause A cut line is printed because CutDustReduct. is On in the Control Panel menu to reduce cutting dust. The Printhead is set too low in the Control Panel menu. You are printing on heavyweight paper or paper that curls or wrinkles easily after absorbing ink. The Ejection Guide is soiled. Corrective Action If this function is not needed, set CutDustReduct. to Off in the Control Panel menu. (See "Menu Settings.") →P.663 In the Control Panel menu, set Head Height to Automatic. (See "Troubleshooting Paper Abrasion and Blurry Images.") →P.801 When printing on Canon Heavyweight Coated Paper or other paper-based media, choose a VacuumStrngth setting of Strong or Strongest in the Control Panel menu. If rubbing still occurs, in the Control Panel menu, use a higher Head Height setting. (See "Adjusting the Vacuum Strength.") →P.810 (See "Troubleshooting Paper Abrasion and Blurry Images.") →P.801 When printing on CAD Tracing Paper or other film-based media, choose a VacuumStrngth setting of Standard, Strong, or Strongest in the Control Panel menu. If rubbing still occurs, in the Control Panel menu, use a higher Head Height setting. (See "Adjusting the Vacuum Strength.") →P.810 (See "Troubleshooting Paper Abrasion and Blurry Images.") →P.801 Clean the Ejection Guide. (See "Cleaning the Printer Exterior.") →P.944 Troubleshooting The surface of the paper is dirty Cause The Paper Retainer is soiled. You are using a paper that does not dry easily. The optional Spectrophotometer Unit is dirty. Corrective Action Clean the Paper Retainer. (See "Cleaning Inside the Top Cover.") →P.944 In the Control Panel menu, set Roll DryingTime to at least 1 min. (See "Menu Settings.") →P.663 When paper that does not dry easily is used for printing, it may curl during printing and touch the Output Tray. In this case, in the Control Panel menu, complete the settings for Dry time and Area in Scan Wait Time. However, note that printing will now take longer. (See "Menu Settings.") →P.663 Clean the Paper presser. (See "Cleaning the Spectrophotometer Unit (option) Parts.") →P.948 Problems with the printing quality The back side of the paper is dirty Cause The Platen has become dirty after borderless printing or printing on small paper. The Platen suction is too strong. BordlessOversize is set to Standard in the Control Panel menu. Corrective Action Open the Top Cover and clean the Platen. (See "Cleaning Inside the Top Cover.") →P.944 In the Control Panel menu, reduce the level of VacuumStrngth. (See "Adjusting the Vacuum Strength.") →P.810 Set BordlessOversize to Little in the Control Panel menu. (See "Menu Settings.") →P.663 Roller marks are left across the trailing edge of paper Cause Corrective Action The paper was removed without pressing the OK button after printing from the Front Paper Feed Slot. Following the instructions displayed, press the OK button, and after removing the paper, press the OK button again. Wipe the rollers to clean them. 989 (See "Cleaning Inside the Top Cover.") →P.944 (See "Cleaning the Paper Retainer.") →P.947 User's Guide
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