7. Troubleshooting
3.
When the window reporting completion appears, press [Exit]. After the window switches,
press [Back] to exit.
Background Stain, White Spots, Density Fluctuation and Faint Blacks
(Developer Refreshing)
The machine consumes degraded toner in the development unit and adds new toner from the toner
bottle.
Refresh the toner for print jobs if:
• Background is dirty
• White spots appear
• Density is uneven
• Black parts are faded
1.
Press [05: Machine: Maintenance]
2.
Select the color and then press [OK].
Streaks Appear after Changing the Paper Size (Smooth Fusing Belt)
When printing on large paper immediately after printing many small sheets, such as when printing a full-
sheet image on A3 paper after printing envelopes, steaks may appear at an interval equal to the width
of the small sheets. If this occurs, execute "Smooth Fusing Belt".
104
0509: [Execute Developer Refreshing].
D0CPPC7749