Ricoh J2SS Buletin Teknis
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Halaman Cetak
SUBJECT: Service Code E11
PREPARED BY: S. Hizen
CHECKED BY: S. Hamano
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
[Phenomenon]
Service Code E11 is displayed on the operation panel when the machine
is initialized either at installation or after developer replacement.
[Cause]
The transistor TR2 in the toner density sensor is broken by static electricity applied
through the pins of the development unit connector when the connector is disconnected.
[Action Required]
The following preventive actions are required when the development connector is
disconnected to protect the sensor from static electricity.
30mm
Preventive Actions:
1: Keep the connector at least 30mm away from the development unit when the unit is
cleaned using a vacuum cleaner.
2: Do not touch the pins of the connector when the development unit is carried away from
the main frame or cleaned.
Once Code E11 is displayed, the toner density sensor must be replaced with a new one.
Toner Density Sensor Replacement Procedure :
Please refer to sections 3.1 DEVELOPMENT UNIT REMOVAL and 3.3 TONER DENSITY
SENSOR REPLACEMENT in Service Manual for the procedure.
Please handle the connector carefully to prevent static electricity damage after the sensor
is replaced.
Technical Bulletin
Revision of service manual
Information only
Other
Development
Unit
No. RTB-001
DATE:Dec. 15, '94
PAGE: 1 of 1
FROM: 2nd Technical Support Section
MODEL: J2SS
Toner Density Sensor