222
DX-600/800
APR 2002
Edition 1.0
6.2.8
SNS PC Board
Each sensor consists of an LED and photo transistor. When documents are placed on the ADF tray or are
moving, a shutter in the document sensor opens. The light from the LED turns the photo transistor “ON”,
and the output voltage from the sensor becomes a “Low” level. With no document on the ADF tray, the
shutter interrupts the light path, and output from the sensor is kept at a “High” level. Operation of the RP
Sensor is exactly the same as the ADF Sensor. The ADF Cover Sensor operation is similar, except that the
output from the sensor is kept at a “Low” level when the cover is closed and becomes a “High” level when
the Printer Cover is opened.
Read Point
Sensor
GND
+5V
+5V
nBPNT
PC3
Shutter
A
K
ADF Cover Sensor
(ILS PC Board)
MPU
CPU
(IC1)
Shutter
PC2
A
K
ADF
Sensor
GND
PC1
Shutter
A
K
SC PC Board
PNL1 PC Board
+5VP
+5VP
PNL CPU
IC1
Содержание DX-600
Страница 28: ...28 DX 600 800 APR 2002 Edition 1 0 10 Remove 2 P6A Bushings 316 11 Remove the Eject Roller 303 10 11 ...
Страница 34: ...34 DX 600 800 APR 2002 Edition 1 0 11 Remove 2 Screws 4N 12 Remove the Paper Feed Rollers 518 11 12 ...
Страница 350: ...350 DX 600 800 APR 2002 Edition 1 0 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 2 4 Model DX 600 800 ...
Страница 351: ...351 DX 600 800 APR 2002 Edition 1 0 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 3 4 Model DX 600 800 ...
Страница 352: ...352 DX 600 800 APR 2002 Edition 1 0 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 4 4 Model DX 600 800 ...
Страница 353: ...353 DX 600 800 APR 2002 Edition 1 0 4 3 2 1 D C B A 1 2 3 4 Drawing Name LVPS 1 1 Model DX 600 800 ...
Страница 357: ...memo ...
Страница 358: ...DZZSM00184 0 ...