Specifications

5.6 DEVELOPMENT UNIT SET SENSOR
When the development unit is removed from the copier, the development unit
set sensor (S12) [A] sends a LOW signal to the main board and "U3" lights in
the operation panel. When the development unit is properly set in the copier,
the sensor is actuated by a projection [B] on the rear of the toner supply unit
and "U3" turns off.
[A]
[B]
1 December 1990
2-33