2NL/2P8
2-1-11
(2) Laser scanner section
The charged surface of the drum is then scanned by the laser beam from the laser scanner unit. The laser
beam is dispersed as the polygon motor (PM) revolves to reflect the laser beam over the drum. Various lenses
and mirror are housed in the laser scanner unit, adjust the diameter of the laser beam, and focalize it at the
drum surface. Also the LSU cleaning motor (LSUCM) is activated to conduct automatically cleaning of the
LSU dust shield glass.
Figure 2-1-14 Laser scanner unit (LSU)
Figure 2-1-15 Laser scanner unit block diagram
1
2
3
4
5
1. Polygon motor (PM)
2. Polygon mirror
3. f
θ
sub lens
4. f
θ
main lens
5. LSU dust shield glass
PM
APCPWB
BDPWB
EPWB
YC28-3
YC28-2
YC28-1
POL_REM
POL_READY
POL_CLK
YC1-3
YC1-2
YC1-1
YC1-4
YC1-5
YC1-6
YC2-3
YC2-2
BD
TH
VDA
T
A1N
VDA
T
A2P
VDA
T
A2N
VDA
T
A1P
SAMPLEN2
SAMPLEN1
YC27-1
1
YC27-12
YC27-13
YC27-10
YC27-9
YC27-8
YC1-7
OUTPEN
YC27-7
YC1-8
VCONT1
YC27-6
YC1-9
VCONT2
YC27-5
YC1-1
1
PDN
YC27-3
YC1-12
TH
YC27-2
YC1-3
YC1-2
1
2
3
Содержание TASKalfa 3010i
Страница 1: ...SERVICE MANUAL Published in September 2016 842NL11B 2NLSM06B Rev B TASKalfa 3010i TASKalfa 3510i ...
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Страница 100: ...2NL 2P8 1 2 76 This page is intentionally left blank ...
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Страница 443: ...2NL 2P8 1 5 59 This page is intentionally left blank ...
Страница 463: ...2NL 2P8 2 1 18 Figure 2 1 23 Duplex conveying section block diagram EPWB DU_SENS DU_CL_REM YC14 5 YC8 1 DUCL DUS ...
Страница 471: ...2NL 2P8 2 2 8 This page is intentionally left blank ...
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