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
Summary of Contents for TASKalfa 3010i
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Page 100: ...2NL 2P8 1 2 76 This page is intentionally left blank ...
Page 286: ...2NL 2P8 1 3 186 This page is intentionally left blank ...
Page 443: ...2NL 2P8 1 5 59 This page is intentionally left blank ...
Page 471: ...2NL 2P8 2 2 8 This page is intentionally left blank ...
Page 532: ...Installation Guide DP 770 B Document processor DP 772 Document processor Installation Guide ...
Page 568: ...DP 773 Document processor Installation Guide ...
Page 594: ...PF 791 500 x 2 Paper feeder Installation Guide ...
Page 602: ...PF 810 3000 sheet deck Installation Guide ...
Page 615: ...DF 791 3000 sheet finisher Installation Guide ...
Page 630: ...DF 770 D 1000 sheet finisher Installation Guide ...
Page 648: ...AK 740 Bridge unit Installation Guide ...
Page 650: ...MT 730 B Mailbox Installation Guide ...
Page 665: ...PH 7A C D Punch unit Installation Guide ...
Page 686: ...DT 730 B Document tray Installation Guide ...
Page 731: ...5 2013 5 302LC56750 01 H F G D D 6 4 3 7 E C D D M4 8 M4 8 M4 8 M4 8 ...
Page 732: ...FAX System W B Installation Guide ...