Samsung SCX-4720F - Printer Paper Path

Service Manual
Alignment & Adjustments
6-2
Samsung Electronics
6.1.1 Copy & Scan Document Path
6.1.2 Printer Paper Path
1) After receiving a print command, the printer feeds paper from the main cassette or manual feeder as required.
2) The paper being fed passes the paper feed sensor. (Jam 0 occurs if the sensor is not operated within a certain time)
3) Having passed the paper feed sensor the paper moves to the paper exit sensor via printing process. (Jam 1
occurs if the sensor is not operated within a certain time)
4) The paper then passes through the paper exit sensor and out of the set. (Jam 2 occurs if the trailing edge of the
paper does not pass the exit sensor within a certain time of the paper leading edge activating the exit sensor)
Scanner Part
CCD-Module
White-SheetWhite-Sheet
1
2
3
4
8
5
6
7
5
6
7
Sensor - Scan
Sensor - Regi
Feed Roller
8
Exit Roller
1
2
3
4
Doc. Paper (50 Sheets)
Pickup Roller
ADF Roller
Sensor - Doc.
Engine Part
1
2
3
4
Paper Input (Cassette)
Paper Input (Manual Feeder)
Paper Out (Face Down)
5
6
7
Paper Empty Sensor (Cassette)
Paper Feeding Sensor
Paper Exit Sensor
Paper Empty Sensor (Manual)
PTL
P
I
C
K
/
R
PR
CR
DR
SR
TR FR
OPC
L S U
Fuser
Toner Cartridge
1
2
3
4
5
6
7