AR-M550 (serv.man131). 016-To enhance reliability of the fuser unit pressure roller in line with the ARM700 - Sharp Copying Equipment Technical Bulletin (repair manual)

ar-m550 (serv.man131) technical bulletin
Model
AR-M550 (serv.man131)
Pages
6
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478.63 KB
Type
PDF
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Technical Bulletin
Brand
Device
Copying Equipment / 016-To enhance reliability of the fuser unit pressure roller in line with the ARM700
File
ar-m550-sm131.pdf
Date

Read Sharp AR-M550 (serv.man131) Technical Bulletin online

Sharp Electronics (UK) Ltd., Technical Services Group
ARE-687
1. Model Name
ARM550U/620U
2. Changes
The fusing unit has been modified to the same cleaning system as the ARM700 series
machines in order to enhance the reliability of the ARM550/620 fusing units.
The following items have been
changed.
In addition the maintenance kit order number has been changed from AR-620KC to AR-
700KC.  The AR-700KC is fitted with the new parts including the springs so long as the
box has a blue marking along side the batch number (see photo), if you are using an
older AR-700KC kit springs can be ordered separately, (see parts table).
To enhance reliability of the fuser unit pressure roller
in line with the ARM700.
TECHNICAL BULLETIN
Date:
29 October 2004
Model: 
ARM550U/620U
Ref.:
016
Colour: 
White
Page:
1 of 6
Sharp Electronics (UK) Ltd., Technical Services Group
ARE-687
3. Action
Running change from May 2004 production.
4. Parts Action
Current parts
New parts
Ref.
No.
Model
name
Version P/G No.
Parts code
Parts code
P
r
i
c
e
r
a
n
k
Parts name
Effective
time
Inter-
change
-
ability
Note
46-23
CDAIU0690FC01
CDAIU0690FC02
B
B
Heat CL sheet
base
46-25
CPLTM6423DS51
---
-
-
-
Scraper fixing
plate
47-16
---
MSPRT3028FCZZ CL roller spring
47-45
---
NBRGP0670FCZZ
A
DCL roller
bearing
47-46
---
NROLR1498FCZZ
B
A
Oil roller
ALL
47-47
---
LPLTM6430FCZZ
A
Z
Pressure CL
plate
5
100V
Series
DUNTW7305DSZZ
DUNTW7305DS14
120V
Series
DUNTW7305DS11
DUNTW7305DS15
1
AR-M550U
AR-M620U
AR-M550N
AR-M620N
200V
Series
46-901
47-901
48-901
DUNTW7305DS12
DUNTW7305DS16
C
K
Fusing unit
2004/5
Running
Change
3
<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.
Fusing unit modification procedure.
1.  Tighten the Pressure screw on both the F/R to release the fuser pressure.
2.  Remove the fusing unit lower cover.
Sharp Electronics (UK) Ltd., Technical Services Group
ARE-687
3.  Remove the heater CL fixing plate.
4.  Replace the heater CL sheet base from the previous type to the modified type.
Ensure not to deform the sheet when installing.
5.  Reinstall the heater CL fixing plate.
6.  Remove the screws on both F/R of the fusing unit and open up the unit.
Sharp Electronics (UK) Ltd., Technical Services Group
ARE-687
7.  Open the lower portion (by lowering the green handle).
8.  Remove the pressure roller and replace if damaged.
9.  Remove the scraper fixing plate and discard it.
10.  Install the CL roller spring on both F/R.
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