Canon imagePROGRAF iPF820 iPF820 User Manual - Page 646
Documents are printed in monochrome, Line thickness is not uniform, Open Preview When Print Job
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Problems with the printing quality Documents are printed in monochrome Cause In the Advanced Settings of the printer driver, Monochrome, Monochrome (BK ink), or Monochrome Bitmap is specied in Color Mode. Corrective Action In the Advanced Settings of the printer driver, specify Color in Color Mode and try printing again. The Printhead nozzles are clogged. Print a test pattern to check the color ink nozzles and see if they are clogged. (→P.577) Line thickness is not uniform Cause In the Special Settings dialog box of the Windows printer driver, Fast Graphic Process is selected. Corrective Action Open the printer driver's Properties dialog box from Print in the application software's File menu, and try printing following the steps below. 1.Clear the option Open Preview When Print Job Starts on the Main sheet. 2.Clear the option Page Layout on the Layout sheet. 3.Click the Special Settings button on the Layout sheet to display the Special Settings dialog box. Clear the option Fast Graphic Process. The blue Switch on the platen is open. Close the blue Switch on the platen so that it matches the paper size. (→P.629) The type of paper specied in the printer driver does not match the type specied on the printer. Load paper of the same type as you have specied in the printer driver. (→P.118) (→P.150) Make sure the same type of paper is specied in the printer driver as you have loaded in the printer. 1.Hold down the Stop button for a second or more to cancel printing. 2.Change the type of paper in the printer driver and try printing again. 632 Troubleshooting
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