Olivetti PG L2555 Service Manual page 151

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
HVCLK
BDCNT
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
MM
DEVSCL
HVPWB
2-1-6
2
1
1WIRE
YC2-1
CRPWB
TSENS
YC3-2
TMOT
YC4-1
Developer bias
TS
TS
TM
Drum