Specifications

Doctor Blade
Developer
Developer
Regulator
Solid Line : Magnetic flux density
Dotted Line : Magnetic attraction
S1
N1
N3
N1
N1
N2
S1
N2
S3
S1
S2
S2
N2
13-4. Magnetic Pole Positioning
•
Each Magnet Roller of the Toner Replenishing, 1st, and 2nd
Sleeve/Magnet Rollers is made up of five magnets asymmetrically packed.
•
The Bias Plate at the front of the Developing Unit ensures that the angle of
principal magnetic pole N1 of the 1st Sleeve/Magnet Roller and that of
principal magnetic pole S1 of the 2nd Sleeve/Magnet Roller will not be
changed with respect to the center of the PC Drum.
•
The torsion coil springs at the front and rear ends of the Developing Unit
press the Ds Positioning Collars of the 1st and 2nd Sleeve/Magnet Rollers
tightly against the PC Drum, thus keeping constant the distance between
each Sleeve/Magnet Roller and the PC Drum.
M-73