Ricoh Taurus-C1a - RTB 127: Preventing SC446 caused by new ITB;Cleaning unit

Technical Bulletin PAGE: 1/2
Model: Taurus-C1a/C1b (D074/D075)
Date: 14-Jan-15
No.: RD074127
Subject: Preventing SC446 caused by new ITB/Cleaning unit
Prepared by: A. Tajima
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
SYMPTOM
SC446-51 or SC446-52 may occur after replacing the ITB or ITB cleaning unit.
CAUSE
 A brand new ITB and ITB cleaning unit tend to put excess load on the ITB drive motor
(SC446-52) due to insufficient lubrication.
 Rollers inside the ITB slip, because they are covered with toner and dust (SC446-51).
SOLUTION
When replacing the ITB
1. Clean the rollers inside the ITB.
2. Do the “After Transfer Belt Replacement” procedure on pg. 607 of the service manual.
In addition, you may also lubricate the ITB manually instead of executing SP2-301-1
(Force Lubricant - Belt Cleaning).
Apply lubricant powder (p/n: B1329700) evenly across the ITB by manually rotating
the ITB drive motor.
IMPORTANT: Work carefully to avoid touching the belt with bare hands.
Reference
Minimum lubrication Maximum lubrication