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Model:
Taurus-C1a/C1b/P1 (D074/D075/M044)
Subject: Modification Program for Temp Yield Change of
the Drum Cleaning Unit (RD074023a)
From:
1st Tech Service Sect., PP Tech Service Dept.
Classification:
This RTB explains the modification program for "Temporary Yield Change of the Drum
Cleaning Unit" announced in RD074023a.
Problem Overview (RD074023)
Symptom
Short Interval Banding (also called 'high-pitch' banding)
Cause
PDCU Vibration
Temp Action
Replace the component parts (brush roller, lubricant bar and joint) at half
of their yield, which is 67,500m and equivalent to 150kP.
Design Modification
The modified drum cleaning units are installed with anti-vibration parts, which have been
implemented in the mass production from February 2012.
Rework the non-modified drum cleaning units in the field – currently in operation and
TCRU Set A – by ordering FOC modification kit D0749904 which includes the following 3
parts.
D0749904 DRUM CLEANING UNIT:MODIFICATION
D0742477
SHEET:STAY:APPLY
D0742437
SHEET:FRAME:APPLY
D0742510
CUSHION:CLEANING UNIT:ASS'Y
NOTE
1) D0749904 includes parts for 4 stations.
Place 1 order of D0749904 per 1 mainframe or per 1 TCRU Set A.
2) The above 3 parts can also be procured separately as service parts.
echnical
T
Troubleshooting
Mechanical
Paper path
Product Safety
ulletin
B
Date:
13-Jun-12
Prepared by: T. Komori
Part information
Electrical
Transmit/receive
Other (
)
PAGE: 1/6
No.:
RD074074
Action required
Service manual revision
Retrofit information
Tier 2
x 8 pcs
x 8 pcs
x 4 pcs
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