6-4. I/U Fuse F4
The Imaging Unit is provided with a fuse called I/U Fuse F4. When a new
Imaging Unit is installed in the copier and the Power Switch turned ON, an
I/U Set signal is output causing the copier to start the starter setup sequence
and ATDC Sensor automatic adjustment.
When the starter setup sequence is completed normally, an I/U Fuse Blow
signal is output to blow F4. Once F4 is blown, the I/U Set signals are no
longer output. This means that the starter setup sequence and ATDC Sensor
automatic adjustment will not be carried out when the Power Switch is
thereafter turned ON.
1139C02MAA
M-15