Have you cleaned the xing unit?
● Clean the xing 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. 585)
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. 585)
Is the print faded or uneven in density depending on the paper type or the
environmental conditions? (MF735Cdw / MF733Cdw / MF731Cdw)
● Change the setting for <Reduce Toner Flaking>. The improvement effect is stronger with <Mode 2> than
<Mode 1>. First try with <Mode 1>.
<Reduce Toner Flaking>(P. 480)
● 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 <High Humidity Mode>. Setting this item to <On> may solve the problem.
<High Humidity Mode>(P. 475)
● If you set to <On> and use the machine in an environment with low humidity, printed images and text may
be blurry.
Are you using paper containing much paper dust? (MF735Cdw / MF733Cdw /
MF731Cdw)
● Using paper containing much paper dust may result in a faded or streaky printout. Setting <Corr. Img.
Corrup. by Ppr Dust> to <On> may solve the problem.
<Correct Image Corrupted by Ppr Dust>(P. 479)
● If you set to <On>, the printing speed may be slower.
Troubleshooting
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