2KR/2KS
2-1-7
(2) Laser scanner section
The image data scanned by the CCD PWB (CCDPWB) is processed on the main PWB (MPWB) and transmitted from
engine PWB (EPWB) as image printing data to the laser scanner unit (LSU). By repeatedly turning the laser on and off, the
laser scanner unit forms a latent image on the drum surface.
Figure 2-1-7 Laser scanner section
9
8
7
6
2
1
10
11
5
3
4
(1)
APC PWB (APCPWB)
(2)
Collimator lens
(3)
Cylindrical lens
(4)
Polygon motor (PM)
(5)
Polygon mirror
(6)
f
θ
lens
(7)
Mirror
(8)
Mirror
(9)
PD sensor mirror
(10) Cylindrical correcting lens
(11) PD PWB (PDPWB)
Summary of Contents for TASKalfa 420i
Page 1: ...SERVICE MANUAL Published in May 2010 842KS113 2KSSM063 Rev 3 TASKalfa 420i TASKalfa 520i ...
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 14: ...2KR 2KS This page is intentionally left blank ...
Page 224: ...2KR 2KS 1 4 66 This page is intentionally left blank ...
Page 328: ...2KR 2KS 2 3 30 This page is intentionally left blank ...
Page 371: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Page 381: ...INSTALLATION GUIDE FOR 3000 SHEETS PAPER FEEDER ...
Page 436: ...INSTALLATION GUIDE FOR CENTER FOLDING UNIT ...
Page 450: ...INSTALLATION GUIDE FOR MAILBOX ...
Page 458: ...INSTALLATION GUIDE FOR HOLE PUNCH UNIT ...
Page 470: ...INSTALLATION GUIDE FOR BUILT IN FINISHER ...
Page 483: ...INSTALLATION GUIDE FOR JOB SEPARATOR ...
Page 491: ...INSTALLATION GUIDE FOR FAX System ...
Page 507: ......
Page 508: ......