Developer Section - Kyocera ECOSYS FS-4300DN Service Manual

2-1-3 Developer section

The developer unit consists of the developer roller that forms the magnetic brush, the developer blade and
the developer screws that agitate the toner.Also, the toner sensor (TS) checks whether or not toner remains in
the developer unit.
1. Developer roller
2. Developer blade
3. Magnet blade
4. Developer screw A
5. Developer screw B
EPWB
YC2-1
YC2-3
YC2-6
YC2-15
YC4-1
YC4-2
YC4-3
YC4-4
YC5-2
YC19-7
YC19-8
YC19-9
9 5 8
6 7
Figure 2-1-11 Developer section
EECLK
EESIO
R-LPWB
TSENS
TMOT
MMOTCW
6
MMOTRDYN
5
MMOTCLKN
4
MMOTONN
3
DLPCLN
DEVSCL
HVCLK
BDCNT
HVPWB
BACNT
Figure 2-1-12 Developer section block diagram
4
3
6. Developer case
7. Upper developer cover
8. Toner supply roller
9. Toner container
DRPWB
DRRPWB
YC2-2
YC2-3
YC3-2
YC4-1
MM
2-1-6
2LV/2L1/2L2/2MS/2MT
2
1
TS
EECLK
CRPWB
EESIO
TSENS
TS
TMOT
TM
Drum
Developer bias