Cleaning The Paper Dust Removing Brush - Konica Minolta 7020 Service Manual

HOME
(8) Remove the E-ring and registration bearing at each
end of each shaft (4 E-rings and 4 bearings in
total).
Caution: Be careful to avoid dropping E-rings and
bearings into the main unit.
(9) Remove the registration rollers from the interior of
the main body.
Registration roller (1)
Registration
bearings
E-rings
Registration spring
(10) Reinstall in the opposite sequence to removal.
Caution: Install each registration bearing so that the
flat part is flush on the inside.
Leave the registration springs hooked (do
not unhook them) when removing and
reinstalling them. Install the springs so that
the hook part is located at the top between
the two shafts.
Registration spring
Registration bearings
Registration roller (2)
E-rings
[8] Cleaning Paper Dust Removing Brush
3
a. Removal procedure
(1) Open the ADU door, and open the conveyance unit.
(2) Remove the developing unit and the drum unit.
(3) Remove the paper dust removing brush.
To remove the brush, raise the
disengage the claw, then pull out the brush in the
direction of the arrow.
Caution: Do not bend the metal plate of the paper
dust removing brush.
Paper dust removing brush
(4) Clean the PET sheet and the plastic part using a
cleaning pad and a blower brush.
PET sheet
b. Installation procedure
(1) Insert the paper dust removing brush from the
(rear) side, and confirm that the hole in the brush is
engaged with the claw.
B
(2) After this, install the brush using the reverse
procedure to removal.
3-J-7
PAPER FEED UNIT
A
part and
Claw
A
Plastic part
B
Hole
Claw