AR-275 (serv.man95). Countermeasure against dropping of developer in the machine - Sharp Copying Equipment Technical Bulletin (repair manual)

ar-275 (serv.man95) technical bulletin
Model
AR-275 (serv.man95)
Pages
3 Few pages! See other manuals at the bottom of the first or last page.
Size
1.81 MB
Type
PDF
Document
Technical Bulletin
Brand
Device
Copying Equipment / Countermeasure against dropping of developer in the machine
File
ar-275-sm95.pdf
Date

Read Sharp AR-275 (serv.man95) Technical Bulletin online

DCE434
Sharp Electronics (UK) Ltd., Technical Services Group
1. Model Name
AR-235 / AR-275
2. Defect Symptom
Occasional scatter of Developer in the machine.
3. Cause of occurrence
It is possible that the space between drum and transfer roller has widened due to one of
the following factors :
1. If excessive force is applied to the right door when removing the jammed paper, the
rail reinforcement plate is deformed so that the right door is not closed securely.
2. Poor contact of the TR electrode plate in the TC unit.
4. Description
The following countermeasure changes are performed to avoid defect occurrence.
(1) The thickness of the rail reinforcement plate is changed (1.0
!1.6mm), and a screw
(M3
×
 10) is added.
(2) The length of the high voltage SP-A and high voltage SP-B is changed (17
!20 mm).
(3) The shape of the TR electrode plate in the transfer unit is changed.
Countermeasure against dropping of developer
in the machine
TECHNICAL BULLETIN
Date:
26 April 2004
Model: AR235 
 
AR275
Ref.:
056
Colour: White
Page:
1 of 3
DCE434
Sharp Electronics (UK) Ltd., Technical Services Group
(Identification of the old and new TR electrode plates)
[TR electrode plate replacement procedure]
   1. Detach the reinforcement plate from the transfer unit. (3 screws. One of them is tightened
       with the earth terminal.)
   2. Remove the transfer roller ass'y.
       Release the hooks on the front/rear frame side (2 pieces each at back and front) using a
       slotted screwdriver, etc. to detach the transfer roller ass'y.
DCE434
Sharp Electronics (UK) Ltd., Technical Services Group
3. Replace the TR electrode plate.
       - Disengage the old TR electrode plate from the positioning projection, and slide it in the
          direction of the arrow (A) to pull it out.
       - Insert the new TR electrode plate from the portion shown by the arrow (B), and mount it
          to the transfer unit in the reverse order from the disassembly.
4. Assemble
5. Action
Included from the production in October 2003.
Current parts
New parts
N
o
Model
name
Versio
n
P/G
No.
Parts code
Parts code
Price
rank
Q'ty
Parts
name
Effec-
tive
time
Inter-
change
-
ability
Note
17 -32
LPLTM0092QSZZ
LPLTM0363QSZZ
AF
2
Rail
reinforce
plate
3
17 -24
XHBSD30P10000
XHBSD30P10000
AA
4
Screw
(M3
××××
10)
-
Quantit
y
Change
2
!
!
!
!4
17 -18
MSPRC0248QSZ1
MSPRC0348QSZZ
High
voltage
Spring A
17 -17
MSPRC0249QSZ1
MSPRC0349QSZZ
High
voltage
Spring B
Rail
reinforce
plate
3
1
AR-235
AR-275
ALL
17 -
-
LPLTM0365QSZZ
AD
1
TR
electrode
plate
'03/10
-
<Interchange>
1. Interchangeable.
4. Not Interchangeable.
2. Current type can be used in place of new type.
New type cannot be used in place of current type.
5. Interchangeable if replaced with same types of related
parts in use.
3. Current type cannot be used in place of new type.
New type can be used in place of current type.
6. Others.
Parts marked with "
" is important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.
Page of 3
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