Ricoh pro c901 - RTB 105: White line

Technical Bulletin PAGE: 1/2
Model: Aries P1.5/C1.5, AegisP1/C1
Date: 07-Feb-14
No.: RM077105
Subject: White line caused by incorrect insertion of the dust
shield glass
Prepared by: T.Miyamoto
From: PP Service Planning Department 1G
Classification:
Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2
SYMPTOM
White line, that appears specifically after cleaning the dust shield glass in the laser unit
CAUSE
After cleaning the dust shield glass and sliding it back into the laser unit, it is falsely
inserted at an angle, causing the guide seal attached inside the bracket to peel off. The
guide seal removed and squashed inside the bracket blocks the laser, resulting in the
white line.
1. The dust shield glass is inserted into the bracket at an angle.
2. The tip of the dust shield glass catches the guide seal.
3. The guide seal is peeled off and squeezed inside, creating a blockage in the optical
path.
Dust shield glass
Bracket
Guide seal
Range of the optical path
The tip catches the guide seal.
Guide seal is squeezed.