Samsung SCX4521F - B/W Laser - All-in-One Service Manual page 54

5.16 RX Drive
1. Before you remove the RX Drive, you should
remove:
- Scan Ass'y (Refer to the 5.9)
- Middle Cover (Refer to the 5.13)
- Main PBA (Refer to the 5.15)
2. If necessary, remove the two Bracket (Port, Main
PBA) and Ground, as shown below.
Ground
Main PBA
Bracket
3. Remove the two screws securing the Engine
Shield and remove the six screws securing the
Frame then remove the RX Drive in the direction of
arrow, as shown below.
Samsung Electronics
Port Bracket
4. Remove the Connector, as shown below.
5. Release the four Gears (RDCN, OPC, Fuser, Feed)
from the Frame, as shown below.
RDCN Gear
OPC DR Gear
Feed Gear
6. Remove the four screws securing the Motor
Bracket and remove it. Then remove the two
screws securing the Motor and remove it.
Motor Bracket
Disassembly and Reassembly
RX Drive
Fuser Gear
Gear Bracket
RX Motor
Service Manual
5-17