Brother MFC-B7720DN Service Manual

3-103
Confidential
9.37 Paper feed roller ASSY / Paper feed sensor PCB ASSY
(1) Release each Hook of the Paper feed sensor cover to remove the Paper feed sensor
cover.
(2) Remove the Paper feed actuator spring from the Hook of the Paper feed actuator and the
Hook of the Paper feed frame ASSY.
(3) Release the Hook of the Separation R shaft bearing to remove the Separation R shaft and
the Paper feed actuator.
(4) Release each Hook of the two Feed roller bushings, and remove the Paper feed roller
ASSY from the Paper feed frame ASSY in the direction of the arrow. Remove the two Feed
roller bushings from the Paper feed roller ASSY.
(5) Release the Hook A to remove the Paper feed sensor PCB ASSY. Release the Paper feed
sensor harness from the securing fixtures.
Fig. 3-104
Paper feed actuator spring
Hook A
Paper feed sensor
PCB ASSY
Separation R shaft
Feed roller bushing
Paper feed roller ASSY
Feed roller bushing
Paper feed sensor cover
Hooks
Paper feed sensor harness
Paper feed sensor PCB ASSY
Hook
Paper feed actuator spring
Paper feed
actuator
Hooks
Hooks
Hook A
Separation R
shaft bearing
Hook of Paper feed frame ASSY
Hook of Paper feed
actuator
Paper feed
frame ASSY

Brother MFC-B7720DN Specifications

General

Brand	Brother
Model	MFC-B7720DN
Category	All in One Printer
Language	English