Ricoh Taurus-C1a - RTB 120 a: SC39 x (Drum Lock Error)

Technical Bulletin PAGE: 1/7
Reissued:14-Oct-14
Model: Taurus-C1a/C1b (D074/D075)
Date: 10-Jun-14
No.: RD074120a
RTB Reissue
The items in bold italics were corrected or added.
Important notice on SC39x and vertical lines caused by drum scratches
SC39x (Drum Lock Error) is a problem frequently reported from the field since the launch
of the Pro C651EX series. Several bulletins have been issued to reduce the susceptibility
of the drum cleaning unit to this SC, but the occurrence rate is still high.
In addition to SC39x, “vertical lines” is another frequently occurring problem, which is
caused by scratches on the drum surface.
To further reduce the chances of SC39x and vertical lines, this bulletin announces new
and comprehensive maintenance procedures that should be performed after
replacing/cleaning the drum and drum cleaning unit.
What you will need
Following are the tools and supplies required for the drum/drum cleaning unit
maintenance. Note that D0159500 is a new lubricant powder that has not been used for
the Pro C651EX series.
B1329700
D0159501
D0159500
D0747690
D0749549
or Brush
For drum
For brush roller;
mix with
D0159500
For brush
roller; mix with
D0159501
For brush roller
To prevent damages
to the development
unit seals
Subject: New and comprehensive procedures required after
Drum and Drum cleaning unit maintenance
Prepared by: S. Sasaki
From: 1st PP Tech Service Sec., PP Tech Service Dept.,
Classification:
Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2