When set to <On>, printing might be faint or printing might be slower.
Does it occur when printing on envelopes or lightweight paper? (MF656Cdw / MF654Cdw / MF653Cdw / MF652Cw / MF644Cdw / MF642Cdw / MF641Cw)
Change the <Paper Wrinkle Correction> setting. <Mode 1> is effective for envelopes. The effect is stronger with <Mode 2>, and the effect is visible on envelopes and lightweight paper. Try starting with <Mode 1>.
<Menu> <Adjustment/Maintenance> <Adjust Image Quality> <Special Processing> <Special Paper Processing> <Paper Wrinkle Correction> Select the mode <Yes>
NOTE
When set to <Mode 1> or <Mode 2>, images might be blurry.
Are you using appropriate paper?
Check paper that can be used, and replace with appropriate paper. Paper that Can Be Used