MX-3500N, MX-3501N, MX-4500N, MX-4501N (serv.man160). 014-IMPROVEMENT OF PRIMARY TRANSFER BELT CLEANING — Sharp Copying Equipment Technical Bulletin (repair manual)

Model
MX-3500N MX-3501N MX-4500N MX-4501N (serv.man160)
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10
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PDF
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Technical Bulletin
Brand
Device
Copying Equipment / 014-IMPROVEMENT OF PRIMARY TRANSFER BELT CLEANING
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mx-3500n-mx-3501n-mx-4500n-mx-4501n-sm160.pdf
Date

View Sharp MX-3500N / MX-3501N / MX-4500N / MX-4501N (serv.man160) Technical Bulletin online

Sharp Electronics (UK) Ltd., Technical Services Group
CCE-339
1. Model Name
MX3500/4500/3501/4501
2. General
Previously, start powder strontium titanate was inserted between the cleaning blade and
C-J packing mylar at factory shipment and the primary transfer belt was polished to
remove a filming that occurs on the primary transfer belt. The machine is designed so that
a toner gets through between the cleaning blade and C-J packing mylar and polishes the
belt to continuously remove filmings when the machine is in operation. The C-J packing
mylar is corrugated and the toner packing quantity depends on whether the toner is in the
peak or trough portion of the mylar. It turned out that when the removed toner is
transported, a primary transfer belt cleaning malfunction may occur because the quantity
of toner remaining between the cleaning blade and C-J packing mylar is uneven.  It also
turned out that silicon oozing out from the cleaning roller attached to the primary transfer
belt for filming reduction forms a silicon film on the belt surface to provide toner-resistance
to the belt but omissions occurred in characters.
3. Description
- We will abolish the C-J packing mylar to improve the cleaning failure.
-
 We will also abolish the transfer CL roller to correct void copy of characters.
-
 Due to the abolishment of the above two parts, we have changed the start powder to
titanium hydroxide that is more effective than strontium titanate.
Titanium hydroxide must be applied even during installation or maintenance.
(Note) *About handling titanium hydroxide
When taking titanium hydroxide out of a bag or putting it into a bag, or when         
applying it to the belt, handle with care according to the precaution described in the
work procedure, because titanium hydroxide is fine powder and easily dispersed.
Due to the abolishment of the transfer CL roller, we have also abolished some parts. (See
the Parts List.)
For the field action, see the accompanying material.
Modified parts of the maintenance kit and the primary transfer belt for service rotation
bear "B" marks on the carton.
Model
Action
Purpose
Removal of C-J packing
mylar
Improvement of cleaning
malfunction
Maintenance kit
MX-270Y1/270B1
MX-450Y1/450B1
Removal of transfer CL
roller
Improvement of omissions
in characters
Removal of C-J packing
mylar
Improvement of cleaning
malfunction
Primary transfer
belt for service
rotation
MX-270U1
MX-450U1
Removal of transfer CL
roller
Improvement of omissions
in characters
IMPROVEMENT OF PRIMARY TRANSFER BELT
CLEANING 
MALFUNCTION AND OMISSIONS IN CHARACTERS.
TECHNICAL BULLETIN
Date:
10
th
 August 2006
Model: 
MX3500/4500/3501/4501
Ref.:
014
Colour: 
Yellow
Page:
1 0f 10
Sharp Electronics (UK) Ltd., Technical Services Group
CCE-339
4. Action
From June 2006 production
5. Parts Action
Current parts
New parts
Ref.
No.
Model
name
Version P/G No.
Parts code
Parts code
Price
rank
Parts name
Effective
time
Inter-
change-
ability
Number
---
---
UKOG-0321FCZZ
BB
Titanium
hydroxide
---
1
25-103
24-25
PSHEZ5565FCZ1
C-J packing
mylar
26-47
25-47
LX-BZ0465FCZZ
Screw(4×8)
26-48
25-48
CPLTM7006FC01
CL roller fixing
plate R
26-49
25-49
LANGT1446FCZZ
CL roller
separate angle
26-51
25-51
CPLTM7005FC01
CL roller fixing
plate F
26-52
25-52
JKNBZ0152FCZZ
CL roller
separate knob
26-53
25-53
MSPRC3601FCZ2
Transfer CL
pressure spring
26-54
25-54
MARMP0372FCZZ
CL roller arm
26-55
25-55
NBRGC0819FCZZ
CL roller
bearing
26-56
25-56
NROLS1634FCZZ
Transfer CL
roller
1
MX-2300N
MX-2700N
MX-3500N
MX-3501N
MX-4500N
MX-4501N
ALL
26-57
25-57
LSTPP0279FCZZ
---
---
Stopper
2006/6
Mid.
---
---
<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.
Sharp Electronics (UK) Ltd., Technical Services Group
CCE-339
Sharp Electronics (UK) Ltd., Technical Services Group
CCE-339
Work Procedure Instruction Sheet (1) Abolishing the C-J Packing mylar
[Peeling off the C-J Packing mylar]
1. Remove the three fixer screws and demount -the cleaner frame UN from the primary transfer UN.
Page of 10
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Here you can view online or download Sharp MX-3500N / MX-3501N / MX-4500N / MX-4501N (serv.man160) Technical Bulletin in pdf. This Technical Bulletin can help you recover, restore, fix, disassemble and repair Sharp MX-3500N / MX-3501N / MX-4500N / MX-4501N (serv.man160) Copying Equipment. Information contained in Sharp MX-3500N / MX-3501N / MX-4500N / MX-4501N (serv.man160) service manual (repair manual) typically includes:

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  • Schematics, wiring and block diagrams.
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  • Parts list (bill of materials).