Ricoh CH-C1 Technical Bulletin page 132

Reissued:29-May-14
Model:
Model CH-C1
RTB Reissue
The items in bold italics were corrected or added.
Subject:
SC460
From:
1st Tech Service Sect. MFP/P Tech Service Dept.
Classification:
Symptom
SC460 (Separation Power Pack Error (Leak)) may occur.
Cause
Poor grounding of the paper transfer unit
If the operator does not push in the drawer unit all the way, the grounding pin [A] does not touch the
grounding plate [B] firmly. As a result, the paper transfer unit is not grounded properly and SC460 is
triggered.
Contact between the grounding pin and plate (PTU-mainframe connection at rear of unit):
[A]
Good contact
Note: This symptom occurs on D135-17 (100V) model only. On all other models, the "Drawer unit
set error" message appears if the drawer unit is not pushed into the machine enough. This
is because the 200V models have a set detection mechanism.
T
echnical
Troubleshooting
Mechanical
Paper path
Product Safety
B
ulletin
Date:
09-Nov-13
Prepared by:
Part information
Electrical
Transmit/receive
Other ( )
[B]
Poor contact
PAGE: 1/6
No
.: RD135048b
Takeshi Toriumi
Action required
Service manual revision
Retrofit information
Tier 2