Samsung SCX4521F Service Manual - Page 33
d Output - Logic H : OffNo Position, No Paper, e LEVER - SENSOR SCAN : Scan Lower Torsion Spring
UPC - 635753616040
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7) Motor Driver speed & method (a) FAX Transmission - Normal Mode : 2000 pps - Fine Mode : 1000 pps - Super Fine Mode : 667 pps (b) Copy Job : 667 pps, 2-2 - max(30sheets) : 50gf - min(1sheets) : 20gf 8) Document Detect sensor (a) Type : Photo interrupt (b) Position : ADF PBA (c) LED - max current : 50mA - max voltage : 3.3V (d) Output - Logic "H" : No Paper - Logic "L" : Paper (e) Lever-Sensor DOC : ADF Lower Torsion Spring 9) Regi Detect sensor (a) Type : Photo interrupt (b) Position : ADF PBA (c) LED - max current : 50mA - max voltage : 3.3V (d) Output - Logic "H" : No Paper - Logic "L" : Paper (e) Lever-Sensor DOC : ADF Lower Torsion Spring 10) Document Scan sensor (a) Type : Photo interrupt (b) Position : ADF PBA (c) LED : - Max current : 50mA - Max Voltage : 3.3V (d) Output - Logic "H" : Off(No Position), No Paper - Logic "L" : On (Doc Position), Paper (e) LEVER - SENSOR SCAN : Scan Lower Torsion Spring System Overview Samsung Electronics Service Manual 3-11