Read Sharp AL-1520 (serv.man25) Technical Bulletin online
AH06072001-1
Sharp Electronics (UK) Ltd., Technical Services Group
Date:
06 July 2001
Model: AL1520
Ref.:
Ref.:
024
Colour: White
Page:
Page:
1 of 5
1. Model Name:
AL1000/1220/1520/1530, AR120E/121E/150/151/F151/155/156 & DM1500/1505
2. General:
Important mechanical noise initially or after 20 copies due to the base plate broken in the
area where the bearing of the PS roller is held.
area where the bearing of the PS roller is held.
Plastic base material is NORYL and with the contact of oil or solvent the following
phenomena happens:
phenomena happens:
Mechanism resulting in the transfer of mass linked to the penetration of solvents into
plastic material:
Solvents (in this case grease) can penetrate in the macro molecular structure to destroy
locally interactions between chains and to give them enough mobility to undergo important
morphological rearrangements in the presence of mechanical constraints.
The penetration of the solvent is translated into a swelling.
It may happen according to cases: only plastic coating, cracking or fissuring
plastic material:
Solvents (in this case grease) can penetrate in the macro molecular structure to destroy
locally interactions between chains and to give them enough mobility to undergo important
morphological rearrangements in the presence of mechanical constraints.
The penetration of the solvent is translated into a swelling.
It may happen according to cases: only plastic coating, cracking or fissuring
PUMA SERIES BROKEN BASE
TECHNICAL BULLETIN
Broken area
AH06072001-1
Sharp Electronics (UK) Ltd., Technical Services Group
3. Description:
Step 1:
- Unplug the machine.
- Open the side door.
- Remove the DV unit.
- Remove the drum.
- Open the side door.
- Remove the DV unit.
- Remove the drum.
Step 2:
- Disassemble the fusing
unit and stick it in the side
door (with a long piece of
tape) to avoid to
disconnect it.
door (with a long piece of
tape) to avoid to
disconnect it.
- The fusing is held with 2
screws.
AH06072001-1
Sharp Electronics (UK) Ltd., Technical Services Group
Step 3:
- Remove the TC front guide
upper (PG 11/5).
- The guide is held with 3
screws.
☞
Be careful when you
unclip the guide to not break
it.
it.
Step 4:
- Remove the PS earth plate
(PG11/25).
- The earth plate is held with
one screw.
☞
Be sure to remove the
broken plastic area if it is not
yet dropped
yet dropped
.
- Repair kit in position with the
PS earth plate.
PS earth plate.
AH06072001-1
Sharp Electronics (UK) Ltd., Technical Services Group
Step 5:
- Setting of the repair kit in the
machine using the screw of
the PS earth plate.
machine using the screw of
the PS earth plate.
☞
Be sure to position
correctly the earth plate
behind the bearing.
behind the bearing.
To reassemble the machine proceed
in the reverse order of steps
in the reverse order of steps