Konica Minolta CF5001 User Manual
Page 61
SCANNER
CF5001 Ver.1.0 Sep. 2003
2-8
II UNIT EXPLANA
TION
1.2.5
APS control
The APS control is performed in the printer control board (PRCB) with signals read by the APS sensor /S
(PS3), the APS sensor /L (PS4), and the CCD sensor when the platen cover or RADF is opened/closed.
The signal is sent via the scanner drive board (SCDB) and the overall control board (OACB) (see the AFR-
20 Service manual for more detailed information on the APS control by AFR-20).
A.
APS operation
The APS sensor /S (PS3) and the APS sensor /L (PS4) detect the original size in the sub-scan direction
and the CCD sensor detects the original size in the main scan direction.
B.
Relationship between each of the sensors and the original size
C.
APS detection timing (platen mode)
The original size in the main scan direction is detected twice. The larger size is regarded as the original
size.
Original size
CCD sensor
(Length of detection: mm)
PS3
(ON/OFF)
PS4
(ON/OFF)
Smallest
102
OFF
OFF
B5R
182
ON
OFF
B5
257
OFF
OFF
B4
257
ON
ON
A4R
210
ON
OFF
A4
297
OFF
OFF
A3
297
ON
ON
8.5 x 11R
215.9
ON
OFF
8.5 x 11
279.4
OFF
OFF
8.5 x 14
215.9
ON
ON
11 x 17
279.4
ON
ON
[1]
1st original size detection
(main scan direction, sub-scan direction)
[2]
2nd original size detection
(main scan direction)
[1]
[2]
8050ma2009
APS sensor /S (PS3)
APS sensor /L (PS4)
Exposure lamp (L1)
APS timing sensor (PS2)
DF reset read switch (RS1)