Technical Bulletin
No. RTB-004
SUBJECT: Remarks for opening the upper unit
DATE: July 15, ’92
PAGE: 1 of 1
PREPARED BY: S. Orita
CHECKED BY:
FROM: Copier Technical Support Section
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Revision of service manual
Information only
Other
MODEL:
E7 series
(A076/A077/A078)
When the development unit, cleaning unit, or drum unit is removed from the machine, the
upper unit becomes lighter. If the upper unit is released under this condition, it tends to
open very abruptly. The service engineer might be injured if he is leaving over the
machine at this time. Also, the machine might move due to the shock of the upper unit
opening abruptly.
To avoid possible injury or machine damage, the service engineers should be instructed to
hold the upper unit firmly as shown in the illustration when opening the unloaded upper
unit.