Printer Paper Path - Samsung SCX-4720F Service Manual

Alignment & Adjustments
6.1.1 Copy & Scan Document Path
Scanner Part

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)
Engine Part
1
2
3
4
Service Manual
6-2
3
4
5
6
7
White-Sheet White-Sheet
CCD-Module
Fuser
7
PR
1
Paper Input (Cassette)
Paper Input (Manual Feeder)
Paper Out (Face Down)
Paper Empty Sensor (Manual)
2
1
8
L S U
CR
DR
OPC
PTL
TR
5
5
Paper Empty Sensor (Cassette)
6
Paper Feeding Sensor
7
Paper Exit Sensor
1
Doc. Paper (50 Sheets)
2
Pickup Roller
3
ADF Roller
4
Sensor - Doc.
5
Sensor - Regi
6
Sensor - Scan
7
Feed Roller
8
Exit Roller
3
Toner Cartridge
2
SR
6
FR 4
Samsung Electronics