Ricoh A076-29 Technical Bulletin - Page 30
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SUBJECT: Constant J1 Misfeed Problem
PREPARED BY: S. Orita
CHECKED BY:
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Phenomenon:
Cause:
Solution:
The service manual mentions that the torque roller should be replaced at every 160 K
copies. We have found that the expected lifetime of this roller does not reach 160 K
copies even after the above modification is applied.
The PM interval for the torque roller should be changed to 80 K copies.
Please correct your service manual as follows: (Page 4-29)
ITEM
Torque Roller
Technical Bulletin
The leading edge of the copy paper always stops around the feed and
torque rollers area.
During copying, the diameters of the torque and paper feed rollers decrease
gradually in proportion to the number of the papers fed.
As a result, the torque roller does not rotate together with the paper when
one copy paper feeds. One part of the torque roller surface gets worn out
and J1 misfeeds occur.
The inner diameter of the slip clutch spring has been decreased from
15.80 mm to 15.84 mm so that the slip torque of the slip clutch is
decreased (refer to E7 MB No. 8).
As a result, the amount of decrease of the feed roller diameter has been
smaller and the expected lifetime of the torque roller is now more than 80 K
copies.
EM
80 K 160 K
C
FROM: Copier Technical Support Section
Revision of service manual
Information only
Other
NOTES
R
R
R= Replace C= Clean
No. RTB-010
DATE:
MODEL: E7 Series
Water
May 15, 1993
PAGE: 1 of 1
(A076/A077)