AR-285 (serv.man140). 1.Change Carried Out In The Assembly Contractor Of The Toner Hopper And Developing Unit. 2.Measure Carried Out To Protect The Main Switch Harness. 3.Measure To Improve The Alignment Performance Of The Waste Toner Transport Gear. 4.Measure To Diminish Abnormal Noise Which Occurs In The Paper Delivery Reversion No.2 Bin Unit. (WHITE) — Sharp Copying Equipment Technical Bulletin (repair manual)

Model
AR-285 (serv.man140)
Pages
5 Few pages! See other manuals at the bottom of the first or last page.
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Type
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Technical Bulletin
Brand
Device
Copying Equipment / 1.Change Carried Out In The Assembly Contractor Of The Toner Hopper And Developing Unit. 2.Measure Carried Out To Protect The Main Switch Harness. 3.Measure To Improve The Alignment Performance Of The Waste Toner Transport Gear. 4.Measure To Diminish Abnormal Noise Which Occurs In The Paper Delivery Reversion No.2 Bin Unit. (WHITE)
File
ar-285-sm140.pdf
Date

View Sharp AR-285 (serv.man140) Technical Bulletin online

1.
CHANGE CARRIED OUT IN THE ASSEMBLY
CONTRACTOR OF THE TONER HOPPER AND
DEVELOPING UNIT.
2.
MEASURE CARRIED OUT TO PROTECT THE MAIN
SWITCH HARNESS.
3.
MEASURE TO IMPROVE THE ALIGNMENT
PERFORMANCE OF THE WASTE TONER
TRANSPORT GEAR.
4.
MEASURE TO DIMINISH ABNORMAL NOISE WHICH
OCCURS IN THE PAPER DELIVERY REVERSION NO.2
BIN UNIT.
1. Change carried out in the assembly contractor of the toner hopper and
developing unit.
1.Model Name:
AR280/285/335/405
2.General:
A change has been carried out in the assembly contractor of the toner hopper and the
developing unit. This action was carried out in accordance with the Chinese (SOCC)
production of the models listed above. In accordance with the action described above, a
change has also been carried out in the part code.
3.Action:
From April 1999 production.
2. Measure carried out to protect the main switch harness.
1.Model Name:
AR280/285/335/250/286/336
2.General:
There was a possibility of the main switch harness being obstructed by the edge section of
the press portion of the frame. As a measure to alleviate this problem, the addition of a
protect sheet has been carried out to the edge section.
ARE167
Sharp Electronics (UK) Ltd., Technical Services Group
Date:
9 September 1999
Model:
AR280/285/335
Ref:
035
Colour: White
Page:
1 of 5
TECHNICAL BULLETIN
3.Action:
*1
Japanese domestic production: From the 1st lot of April 1999 production.
Chinese (SOCC) production:
From the 1st lot of May 1999 production.
3. Measure to improve the alignment performance of the waste toner transport
gear.
1.Model Name:
AR280/285/335/405
2.General:
1. There was a possibility of damage occurring to the waste toner transport screw shaft
due to the excessively strong alignment pressure of the waste toner transport gear.
Therefore a change has been carried out in the shape of the waste toner transport gear as
a means of diminishing the alignment pressure of the gear. In accordance with the change
that was carried out in the shape of the gear, a change has also been carried out in the part
code of the main drive unit. It is important to note that the action described above has been
carried out for the model AR405, which is characterized by a high copy speed.
The same change, however, has been carried out in other models which use the same
parts.
ARE167
Sharp Electronics (UK) Ltd., Technical Services Group
2. The addition of the following parts has been carried out as a measure to alleviate a
problem of vibration noise in the waste toner unit. (This action has been carried out for
model AR405 only.)
3.Action:
*2
Japanese domestic production:
(AR405)
From mid-March 1999 production.
(Other models) From the 1st lot of April 1999 production.
Chinese (SOCC) production:
(AR405)
From the 1st lot of April 1999 production.
(Other models) From the 1st lot of May 1999 production.
4. Measure to diminish abnormal noise which occurs in the paper delivery
reversion No. 2 bin unit.
1.Model Name:
AR405/250/286/336
2.General:
There was a loud noise in the paper delivery reversion No. 1 bin unit caused by the gate
coming in contact with the paper guide. As a measure to alleviate this problem, the action
described below has been carried out.
3.Cause:
The noise caused by the contact between the gate and the paper guide was increased due
to the fact that the roller and other parts were no longer present in the paper delivery
reversion No. 2 bin unit.
4.Description:
The attachment of a noise reduction sheet has been carried out to the paper delivery paper
guide.
ARE167
Sharp Electronics (UK) Ltd., Technical Services Group
5.Action:
*3
Japanese domestic production:
Running change carried out from March 1999 production.
Chinese (SOCC) production:
Running change carried out from April 1999 production.
ARE167
Sharp Electronics (UK) Ltd., Technical Services Group
Gate noise reduction sheet
(PSHEZ4762FCZZ)
Added gate noise reduction sheet
(PSHEZ4762FCZZ)
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Here you can view online or download Sharp AR-285 (serv.man140) Technical Bulletin in pdf. This Technical Bulletin can help you recover, restore, fix, disassemble and repair Sharp AR-285 (serv.man140) Copying Equipment. Information contained in Sharp AR-285 (serv.man140) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).