Brother MFC-9420CN - Page 282

Confidential
9-26
I-2 Missing Image at Edge
Phenomenon
There is missing or peeling toner found in the image at the edge as shown in the print sample [2] of
Fig.9-1.
Main Causes
(1) Too small toner mass amount and charging amount in the development process.
(2) The OPC belt is deformed as waving.
Fig. 9-3
Countermeasures
(1) Replace the toner cartridge PU with a brand new toner cartridge PU.
(2) Replace the belt cartridge PU with a brand new belt cartridge PU.
Belt cartridge PU
Toner cartridge PU
(K, Y, M, C)
OPC belt