Ricoh Taurus-C1a - RTB 111: Troubleshooting SC449

Technical Bulletin PAGE: 1/3
Model: Taurus-C1a/C1b (D074/D075)
Date: 24-Jan-14
No.: RD074111
Subject: Troubleshooting SC449
Prepared by: Shinnosuke Sasaki
From: 1st PP Tech Service Sec., PP Tech Service Dept.,
Classification:
Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Product Safety
Other ( )
Tier 2
Symptom
SC449 (ITB Tray Lift [K] error) occurs and the Bk image transfer roller remains up against
the drum even when releasing the ITB lock lever or turning the screw to lower the right half
of the ITB unit according to the procedure in the following section of the field service
manual.
4. Replacement and Adjustments > Common Procedures > Pulling Out the ITB Unit >
Before Pulling Out the ITB Unit and PCDUs
Check if the Bk image transfer roller is raised up against the drum by looking at the front
edge of the ITB. If you see the white cap as shown in the photo below, the ITB lift motor
has failed to lower the belt.
Cause
Following are the possible causes of this problem.
1. The 2nd lift motor or its gear is clogged with toner.
2. The 2nd lift motor sensors are dirty or damaged.
3. Damaged or disconnected harnesses