Canon Color imageCLASS MF731Cdw imageCLASS MF735Cdw/MF733Cdw/MF731Cdw/MF634Cdw - Page 643
Are you using the machine in an environment with high humidity
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Troubleshooting Are you using appropriate paper? ● Check usable paper, and replace with appropriate paper. Available Paper(P. 703) Loading Paper(P. 139) Is the platen glass dirty? ● Clean the platen glass and the underside of the feeder. Cleaning the Platen Glass(P. 579) Have you cleaned the fixing unit? ● Clean the fixing unit. Cleaning the Fixing Assembly(P. 583) Is the amount remaining in toner cartridge running low? ● Check how much the amount remaining in toner cartridges is left, and replace the toner cartridges as necessary. Replacing the Toner Cartridge(P. 586) Is it time to replace the toner cartridge? ● Materials inside the toner cartridge may have deteriorated. Replace the toner cartridge. Replacing the Toner Cartridge(P. 586) Is the print faded or uneven in density depending on the paper type or the environmental conditions? (MF735Cdw / MF733Cdw / MF731Cdw) ● Change the setting for . The improvement effect is stronger with than . First try with . (P. 478) ● Setting a greater improvement effect may result in curled printouts or slower printing speed. Are you using the machine in an environment with high humidity? ● Change the setting for . Setting this item to may solve the problem. (P. 473) ● If you set to and use the machine in an environment with low humidity, printed images and text may be blurry. 635