Sharp MX-M350N / MX-M350U / MX-M450N / MX-M450U (serv.man47) Service Manual / Technical Bulletin ▷ View online
Sharp Electronics (UK) Ltd., Technical Services Group
PREVENTING THE DRUM FROM BEING SCRATCHED
DUE TO INSERTION/REMOVAL OF THE PROCESS UNIT.
1.Model Name:
MX-M350N/M350U/M450N/M450U
AR-M351N/M351U/M355N/M355U/M451N/M451U/M455N/M455U/M312U/M420U
AR-M280N/M280U/M300N/M300U/P350/M350/M350N/M350U/P450/M450/M450N/M450U
DM-3500/3501/3551/4500/4501/4551
AR-M280N/M280U/M300N/M300U/P350/M350/M350N/M350U/P450/M450/M450N/M450U
DM-3500/3501/3551/4500/4501/4551
2.Symptom:
When inserting and removing the process unit, there are very rare cases where the drum front
PG comes in contact with the drum, causing the drum to be scratched.
PG comes in contact with the drum, causing the drum to be scratched.
3.Description:
To prevent the drum front PG from coming in contact with the drum, the bending dimension of
the drum front PG is changed in the direction of separating from the drum. Because the drum
front PG is bent towards the transfer front PG, the clearance between the transfer front PG and
the drum front PG is narrowed. As a result, it becomes difficult to make sheets pass through
the portion between the transfer front PG and drum front PG, causing the possibility of oblique
feeding. To reserve the clearance between the transfer front PG and the drum front PG,
transfer front PG spacers are added to the PS paper guide A.
Drum front PG
the drum front PG is changed in the direction of separating from the drum. Because the drum
front PG is bent towards the transfer front PG, the clearance between the transfer front PG and
the drum front PG is narrowed. As a result, it becomes difficult to make sheets pass through
the portion between the transfer front PG and drum front PG, causing the possibility of oblique
feeding. To reserve the clearance between the transfer front PG and the drum front PG,
transfer front PG spacers are added to the PS paper guide A.
Drum front PG
Transfer front PG spacer
TECHNICAL BULLETIN
Date: 21
st
July 2008
Model: MXM350/450
Ref.: 005
Colour:
Colour:
White
Page:
1 of 1
Sharp Electronics (UK) Ltd., Technical Services Group
Places where the transfer front PG spacers are to be attached
4.Action:
From mid-January 2008 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
3-40
CGIDH1961FC01
CGIDH1961FC02
AQ
Drum front PG
1
1
MX-M350N
MX-M350U
MX-M450N
MX-M450U
AR-M351N
AR-M351U
AR-M355N
AR-M355U
AR-M451N
AR-M451U
AR-M455N
AR-M455U
AR-M312U
AR-M420U
AR-M280N
AR-M280U
AR-M300N
AR-M300U
AR-P350
AR-M350
AR-M350N
AR-M350U
AR-P450
AR-M450
AR-M450N
AR-M450U
DM-3500
DM-3501
DM-3551
DM-4500
DM-4501
DM-4551
MX-M350U
MX-M450N
MX-M450U
AR-M351N
AR-M351U
AR-M355N
AR-M355U
AR-M451N
AR-M451U
AR-M455N
AR-M455U
AR-M312U
AR-M420U
AR-M280N
AR-M280U
AR-M300N
AR-M300U
AR-P350
AR-M350
AR-M350N
AR-M350U
AR-P450
AR-M450
AR-M450N
AR-M450U
DM-3500
DM-3501
DM-3551
DM-4500
DM-4501
DM-4551
ALL
3-
---
PSHEP5953FCZZ
AA
Transfer front
PG spacer
PG spacer
2008/1
Mid
5
2
<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.
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