Operation; Initial Operation When Power Is Turned On And Shading Correction Reading; Original Reading Mode - Konica Minolta 7145 Service Manual

SCANNER SECTION
1.2

Operation

1.2.1

Initial operation when power is turned on and shading correction reading

When the SW2 (Sub power switch) comes on, the exposure unit starts a home position search. At this
time, the exposure unit uses the white reference plate attached on the back side of the original pressing
board for shading correction. However, two places on the white reference plate are read for correction.
The search procedure differs depending on whether the PS14 (Scanner HP sensor) is on or off while the
SW2 is on.
A. Home position search when the PS14 is turned on
[1] Exposure unit standby position
[2] PS14
B. Home position search when PS14 is turned off
[1] Exposure unit standby position
[2] PS14
1.2.2

Original reading mode

The following two modes are available for original reading; platen mode and DF mode. In platen mode, the
exposure unit moves as necessary to scan the original for reading. In DF mode, the RADF side moves the
original while the exposure unit stays fixed in a specified position (DF reading position).
2
[4] [3] [2]
[4] [3] [2]
2-2
[1]
[3] Shading correction position 1
[4] Shading correction position 2
[1]
[3] Shading correction position 1
[4] Shading correction position 2
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