Confidential
9-36
I-12
Banding
Phenomenon
Banding line appears in the horizontal direction as shown in print sample [12] of Fig.9-1.
Main Causes
(1) This is a transfer failure due to the uneven rotational speed caused by the shock which occurs
when the seam of OPC belt passes over the cleaning blade.
(2) The OPC belt and the transfer belt fail to maintain the regular and proper rotation due to the
impact caused during the retract of the toner cartridge.
Belt Seam
Belt Cartridge PU
Fig. 9-13
Countermeasures
(1) Replace the belt cartridge PU with a new belt cartridge PU.
(2) Replace the toner cartridge PU with a new toner cartridge PU.