Here is the Bulletin.
BULLETIN NUMBER: D062/D063/D065/D066 – 002 REISSUE
06/03/2010
APPLICABLE MODEL:
RICOH - Aficio MP 6001/MP 6001 SP/MP 7001/MP 7001 SP/MP 8001/MP 8001 SP
MP 9001/MP 9001 SP
SYMPTOM:
A SC542 or SC555 occurs.
CAUSES:
•
Temperature misdetection has occurred by the thermistors.
•
When using paper with a high paper dust content, the amount of toner that sticks to the surface of
the fusing roller increases. This toner and paper dust mix then sticks to the temperature-detecting
elements of the thermistors. As a result, the thermistors are unable to detect the temperature of the
fusing roller correctly.
SOLUTIONS:
If the symptoms occur:
1. Clean or replace the Fusing Roller.
NOTE:
If the fusing roller is dirty, the toner and paper dust tends to stick to the thermistor more easily.
If the SC codes continue:
2. Replace the Middle and Rear Thermistor Brackets.
NOTE:
This will secure the thermistors in the correct position, which ensures that they can detect the
roller temperature correctly.
The distances [A] are different between
the new and old style brackets.
Old P/Ns - B1404196/7: 14.8 mm
New P/Ns - D0624196/7: 15.3 mm
[A]
Tech Service Bulletin No. D062/D063/D065/D066 – 002 REISSUE
Page 2 of 3
3. Replace the Middle and Rear Thermistors with the new style thermistors. See GENERAL for P/N
information.
NOTE:
The new style Thermistor is resistant to toner buildup on its surface.
Changes:
1) The material of the Teflon tape has been changed.
2) The width of the Teflon tape has been decreased.
3) The thickness of the Teflon sheet has been increased.
Reasons:
1) To make the surface smoother.
2), 3) To make it more difficult for toner to stick to the surface.
Old New
Correct position of the thermistor
GENERAL:
The following part information is being issued for all D062 Series Parts Catalogs.
D062 Series REFERENCE
OLD PART NO. NEW PART NO. DESCRIPTION QTY INT PAGE ITEM
B1404197 D0624197 Bracket: Thermistor: Middle 1 3/S 105 10
B1404196 D0624196 Bracket: Thermistor: Inner Back 1 3/S 105 11
NOTE:
The above listed parts should be replaced as a set when replacing for the first time.
Tech Service Bulletin No. D062/D063/D065/D066 – 002 REISSUE
Page 3 of 3
The following part information is being issued for all D062 Series Parts Catalogs.
D062 Series REFERENCE
OLD PART NO. NEW PART NO. DESCRIPTION QTY INT PAGE ITEM
AW100108 AW100131 Thermistor: Fusing: Middle 1 3/S 105 12
AW100109 AW100132 Thermistor: Fusing: Inner Back 1 3/S 105 13
NOTE:
The above listed parts should be replaced as a set when replacing for the first time.
UNITS AFFECTED:
The serial number cut-in information was not available at time of this publication.
INTERCHANGEABILITY CHART:
0
OLD and NEW parts can be used in both OLD and
NEW machines.
2
NEW parts CAN NOT be used in OLD machines.
OLD parts can be used in OLD and NEW machines.
1
NEW parts can be used in OLD and NEW machines.
OLD parts CAN NOT be used in NEW machines.
3
OLD parts CAN NOT be used in NEW machines.
NEW parts CAN NOT be used in OLD machines.
3/S
Must be installed as a set on units manufactured prior to the S/N cut-in. On units manufactured after the S/N cut-in or
previously modified, use the new part numbers individually.
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