Canon imagePROGRAF iPF760 Basic Guide - Page 96
Banding in different colors occurs, Colors in printed images are uneven, Line Drawing/Text
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Troubleshooting Banding in different colors occurs iPF760 Banding in different colors occurs Cause The paper feed amount is out of adjustment. Printing does not proceed smoothly because print jobs are interrupted during transmission. Corrective Action Adjust the feed amount. (See "Adjusting the Feed Amount.") →User's Guide Exit other applications and cancel other print jobs. In the Control Panel menu, Adj. Priority is set to Print Length. The Printhead is out of alignment. The Printhead nozzles are clogged. Setting Adj. Priority to Print Quality in the Control Panel menu and adjusting the feed amount may improve results. (See "Adjusting the Feed Amount.") →User's Guide Adjust the Printhead alignment. (See "Automatic Adjustment to Straighten Lines and Colors (Head Posi. Adj.).") →P.76 Print a test pattern to check the nozzles and see if they are clogged. (See "Checking for Nozzle Clogging.") →User's Guide 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. Choose a higher level of Print Quality in the Advanced Settings of the printer driver and try printing again. Printing in Fast 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.") →User's Guide Load paper of the same type as you have specified in the printer driver. (See "Loading Rolls in the Printer.") →P.12 (See "Loading Sheets in the Printer.") →P.18 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 (VacuumStrngth).") →User's Guide 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 or High modes, but the printing quality is lower. (See "Giving Priority to Particular Graphic Elements and Colors for Printing.") →User's Guide Color may be uneven between dark and light image areas. Select Unidirectional Printing in the Advanced Settings of the printer driver. 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 Auto Cut 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.") →User's Guide The Printhead is out of alignment. Adjust the Printhead alignment. (See "Automatic Adjustment to Straighten Lines and Colors (Head Posi. Adj.).") →P.76 Allowing printed documents to dry on top To avoid uneven colors, we recommend drying each sheet separately. 96 of each other may cause uneven colors. Problems with the printing quality Basic Guide