AR-P300 (serv.man8). ARE-902 SMUDGY IMAGE RECEPTION RESULTING FROM INCOMPLETE MG ROLLER ROTATION - Sharp Copying Equipment Technical Bulletin (repair manual)

Model: AR-P300 (serv.man8)
Pages: 2 Few pages! See other manuals at the bottom of the first or last page.
Size: 69.87 KB
Type: PDF
Document: Technical Bulletin
Brand: Sharp
Device: Copying Equipment / ARE-902 SMUDGY IMAGE RECEPTION RESULTING FROM INCOMPLETE MG ROLLER ROTATION
File: ar-p300-sm8.pdf
Date: 2018-11-20

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Sharp Electronics (UK) Ltd., Technical Services Group
 
SMUDGY IMAGE RECEPTION RESULTING 
FROM INCOMPLETE MG ROLLER ROTATION
. 

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 

2.Symptom: 
Depending on the environment and frequency of usage, the DV coupling of the main driving 
unit may rarely slow down, causing incorrect engagement of the MG gear of the DV unit with 
the DV coupling. 
If the MG gear does not correctly engage with the DV coupling, the MG roller of the DV unit 
does not rotate correctly, resulting in smudgy image reception. 

3.Description: 
To keep the engagement between the MG gear and DV coupling, we have increased the 
tension of the DV drive spring pressing the DV coupling 1.5 times (increase of load from 500 gf 
to 750 gf) the tension of the existing DV drive springs. This provides the MG gear with smooth 
engagement with the DV coupling 
 
. 
 
4.Action: 
             From middle of August 2008 production 
 
TECHNICAL BULLETIN 
Date: 1/9/08  
Model: MXM350/450 
 
Ref.:  ARE-902 
 
Colour:  
White 
Page:  
1 of 2

 
 
 
Sharp Electronics (UK) Ltd., Technical Services Group
 
 
 
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
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 
ALL 
 4-4 
MSPRC2616FCZZ 
MSPRC2616FCZ1 
AC  DV drive spring 
2008/8 
Mid 
3 
1 
<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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