Ricoh CH-C1 - RTB 173: Manual correction

Technical Bulletin PAGE: 1/2
Model: CH-C1 Office/Pro
Date: 12-Jun-17
No.: RD135173
Subject: Manual correction: the table of SC360/ SC362
Prepared by: K. Hamada
From: 2nd Tech Service Sect., MFP/P 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
Service Manual Correction
① HTML version: Top Page > Main Chapters>Troubleshooting > Service call 300- 398
> SC300 (Engine: Development)
PDF version: page 1062 and 1063 (MP C6502 series Field Service Manual)
Delete the description in bold in the table of SC360 and SC362.
SC No.
Level
Error Name/ Error Condition/ Major Cause/ Solution
SC360-01
D
TD sensor adjustment error (K)
SC360-02
D
TD sensor adjustment error (C)
SC360-03
D
TD sensor adjustment error (M)
SC360-04
D
TD sensor adjustment error (Y)
During TD sensor initialization, TD sensor output voltage(Vt) cannot be
adjusted to the target range (target value ±0.2V)
Details:
TD sensor initialization adjust the TD sensor control voltage(Vtcnt) in
order to adjust the TD sensor output voltage(Vt) to target value ±0.2V.
Adjustment flow:
1. Developer presence detection
2. Developer not detected.
OK: Proceeds to Vtcnt adjustment
NG:SC336-0X
3. TD sensor calibration (Fluctuate Vtcnt and measure Vt)
4. TD sensor calibration result judgment
OK: TD sensor calibration succeeded.
NG: SC360-0X
- TD sensor defective
- Loose connection
- Harness broken
- Developer is not new
- Replace the TD sensor
- Replace the development unit