Toshiba E-Studio 5540c - White Banding (at Right Angles to Feeding Direction)

e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C © 2011 - 2015 TOSHIBA TEC CORPORATION All rights reserved
ERROR CODE and TROUBLESHOOTING
8 - 314
8.5.13 White banding (at right angles to feeding direction)
Fig.8-21
Cause/Section Step Check item Measures
Laser optical
unit, Main
charger grid
1 Perform the enforced performing of
image quality closed-loop control (05-
2742).
When the enforced performing of
image quality closed-loop control is
performed, the automatic cleaning of
main charger and the LSU slit glass
cleaning are performed at the same
time.
Main charger 2 Is there foreign matter on the
charger?
Remove foreign matter.
3 Is the terminal contact poor? Clean or adjust the terminals.
4 Check if the inside wall in the case of
the main charger unit is dirty or there
is any fouling in the case of the main
charger unit.
Clean the inside wall in the case.
5 Check if the main charger grid is
corroded, or rusted, or there is any
fouling on the grid.
Replace the main charger grid.
Drum 6 Is there any abnormalities on the
drum surface?
Replace the drum.
7 Is the drum grounded? Check the contact of the grounding
plate.
Discharge LED 8 Is the Discharge LED lighting
properly?
Replace the Discharge LED.
Developer unit 9 Is the developer sleeve rotating
correctly?
Is there any abnormalities on the
sleeve surface?
Check the developer drive system, or
clean the sleeve surface.
10 Is the connection of developer bias
supply terminal normal?
Correct it.
Feeding direction