2A3/4
1-3-20
Original scanning
The original image is illuminated by the exposure lamp (EL) and scanned by the CCD
PCB (CCDPCB) in the image scanning unit via the three mirrors, the reflected light
being converted to an electrical signal.
The scanner and mirror frame 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 frame is half the speed
of the scanner. When the SRDF is used, the scanner and mirror frame stop at the DF
original scanning position to start scanning.
CN1-1–
CN2-1–
CN4-2
CN2-6
CN2-1
CN2-4
CN1-140
CN7-1–
CN7-2
CN5-1–
CN5-16
CN11-1–
CN11-11
CN12-1–
CN12-7
CN9-1–
CN9-4
CN8-1–
CN8-5
CN7-1–
CN7-13
CN1-1–
CN1-16
CN1-1–
CN1-140
CN3-6
CN3-1–
CN1-6
CN1-1–
SMPCB
INPCB
CCDPCB
EPCB
MPCB
SM
SHPSW
EL
Original
Drum
LSU
Figure 1-3-18
Optical section block diagram
Содержание Ri 4230
Страница 1: ...4230 5230 S M MCA SERVICE MANUAL Published in June 00 2A370941 Revision 1 Ri 4230 5230 Ri 4230 5230 ...
Страница 3: ...SERVICE MANUAL Ri 4230 5230 ...
Страница 13: ...4230 5230 S M MCA THEORY AND CONSTRUCTION SECTION I I Theory and Construction Section ...
Страница 14: ...1 1 5 2A3 4 CONTENTS 1 1 Specifications 1 1 1 Specifications 1 1 1 ...
Страница 21: ...1 1 7 2A3 4 CONTENTS 1 2 Handling Precautions 1 2 1 Drum 1 2 1 1 2 2 Developer and toner 1 2 1 ...
Страница 100: ...4230 5230 S M MCA ELECTRICAL SECTION II II Electrical Section ...
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Страница 159: ...4230 5230 S M MCA III Set Up and Adjustment Section III SET UP AND ADJUSTMENT SECTION ...
Страница 419: ...1 1 25 2A3 4 CONTENTS 3 5 Self Diagnosis 3 5 1 Self diagnosis 3 5 1 1 Self diagnostic function 3 5 1 ...
Страница 448: ...2A3 4 3 6 3 25 Toner scatters at the leading edge of the image See page 3 6 17 ...