2KJ/2KH
2-1-3
2-1-2 Optical section
The optical section consists of the image scanner section for scanning and the laser scanner section for printing.
(1) Image scanner section
The original image is illuminated by the exposure lamp (EL) and scanned by the CCD PWB (CCDPWB) in the image scan-
ning unit via the three mirrors, the reflected light being converted to an electrical signal.
The scanner and mirror frames travel to scan on the optical rails on the front and rear of the machine to scan from side to
side. The speed of the mirror frames is half the speed of the scanner.
When the DP is used, the scanner and mirror frames stop at the DP original scanning position to start scanning.
Figure 2-1-3 Image scanner section
7
5
6
2
10
3
12 13
11
1
4
14
8
15
9
(1)
Mirror 1 frame
(2)
Exposure lamp (EL)
(3)
Mirror 1
(4)
Scanner reflector
(5)
Mirror 2 frame
(6)
Mirror 2
(7)
Mirror 3
(8)
ISU
(9)
CCD PWB (CCDPWB)
(10) ISU cover
(11) Contact glass
(12) Slit glass
(13) Home position switch (HPSW)
(14) Original detection switch (ODSW)
(15) Original size detection sensor (OSDS)
Summary of Contents for TASKalfa 181
Page 1: ...SERVICE MANUAL Published in October 2009 842KJ112 2KJSM062 Rev 2 TASKalfa 181 TASKalfa 221 ...
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Page 14: ...2KJ 2KH This page is intentionally left blank ...
Page 114: ...2KJ 2KH 1 3 74 This page is intentionally left blank ...
Page 152: ...2KJ 2KH 1 4 38 This page is intentionally left blank ...
Page 292: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Page 306: ...INSTALLATION GUIDE FOR DUPLEX UNIT ...
Page 315: ...INSTALLATION GUIDE FOR BUILT IN FINISHER ...
Page 327: ...INSTALLATION GUIDE FOR JOB SEPARATOR ...
Page 336: ...INSTALLATION GUIDE FOR FAX System R ...
Page 351: ...INSTALLATION GUIDE FOR Scan System F B ...
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