T
echnical
B
ulletin
PAGE: 1/9
Model:
Taurus-C1a/C1b (D074/D075)
Date:
12-Jul-12
No.:
RD074079
Subject:
Resolving SC36x - Toner Density Sensor Error
Prepared
by:
Shinnosuke Sasaki
From:
1st Tech Service Sect., 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
SC36x - TD Sensor (Vt High or Low) Error
Cause
Bug in the engine firmware rewrites the default SP values of the Toner Density Sensor.
Temporary Solution
Reset the SP values to the default with the SD card containing the program to reset the SP
values. Contact your supervisor to obtain the SD card and the necessary information.
Required Tool and Information
1. SD card containing the program to reset the SP values.
2. SMCs that had been output from machines prior to exhibiting the symptom: SC36x.
3. Factory set default values of SP3-711/712/713/714 (which should be supplied from
your supervisor when the above SMCs are not available).
The affected development unit will have to be replaced, if the above information cannot be
procured.
For more details, refer to page 5 of this bulletin.