Canon imagePROGRAF iPF6400 User Guide - Page 895

iPF6400 Cause The Printhead nozzles are clogged. Streaks may occur if you set the Print Quality too low. The type of paper specified in the printer driver does not match the type loaded in the printer. Colors in printed images are uneven Corrective Action Print a test pattern to check the nozzles and see if they are clogged. (See "Checking for Nozzle Clogging.") →P.845 Choose a higher level of Print Quality in the Advanced Settings of the printer driver and try printing again. 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 Load paper of the same type as you have specified in the printer driver. (See "Loading Rolls in the Printer.") →P.534 (See "Loading Sheets in the Feed Slot.") →P.554 Make sure the same type of paper is specified in the printer driver as you have loaded in the printer. 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 uneven Cause Line Drawing/Text is selected when printing images in many solid colors. Corrective Action In Print Priority in the Advanced Settings of the printer driver, choose Image. You are printing on paper that curls easily. 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 suction against the paper, or specify a leading margin of 20 mm (0.79 in) or more. (See "Adjusting the Vacuum Strength.") →P.744 Troubleshooting Printed colors may be uneven if you set 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 quality or High modes, but the printing quality is lower. (See "Giving Priority to Particular Graphic Elements and Colors for Printing.") →P.61 Color may be uneven between dark and light Select Unidirectional Printing in the Advanced Settings of the printer driver. image areas. Problems with the printing quality When borderless printing is used, the edge of the paper is cut during printing. Thus, ink density may be slightly uneven at the leading edges. Specify No in Automatic Cutting in the printer driver before printing. In this case, the paper can be printed without borders on the left and right sides only. Cut the printed document ejected from the printer, and then use scissors or a cutting tool to cut away the edges on the top and bottom. Choose a higher level of Print Quality in the Advanced Settings of the printer driver. (See "Giving Priority to Particular Graphic Elements and Colors for Printing.") →P.61 The Printhead is out of alignment. Adjust the Printhead alignment. (See "Automatic Adjustment to Straighten Lines and Colors.") →P.730 Allowing printed documents to dry on top of each other may cause uneven colors. To avoid uneven colors, we recommend drying each sheet separately. Density may be uneven if you use Glossy Pa- In Advanced Settings of the printer driver, choose Highest quality or High in Print Quality. per or Canon Coated Paper. The type of paper specified in the printer driv- Load paper of the same type as you have specified in the printer driver. er does not match the type loaded in the print- (See "Loading Rolls in the Printer.") →P.534 er. (See "Loading Sheets in the Feed Slot.") →P.554 Make sure the same type of paper is specified in the printer driver as you have loaded in the printer. 1. Press the Stop button and stop printing. 895 2. Change the type of paper in the printer driver and try printing again. User's Guide