Ricoh Aficio 1013 Service Manual page 173

6.11.4 DETECTION OF A NEW PCU
Before starting to use a new PCU, the machine must (a) agitate the
toner/developer mix, (b) initialize the TD sensor, and (c) initialize the PCU
counter. This machine automatically detects the presence of a new PCU and
carries out these operations.
At time of copier installation
The first time the machine is turned on following installation, a factory-set flag
informs the machine that the PCU has not yet been initialized. The machine
carries out the necessary initialization automatically.
When a replacement PCU is installed
Replacement PCUs have a special mechanism that trips when they first start,
informing the machine that a new PCU has been installed. (Preinstalled PCUs do
not include this mechanism, and have two empty pins in their connector.)
[A]
Replacement PCUs are shipped as shown in [A]. Slight rotation of PCU gear
[B] at power-on releases plate [C], breaking the circuit and informing the FCU
that the new PCU is a replacement unit.
SM
[B]
6-31
DRUM CHARGE
[C]
B046D301.WMF
B044/B045/B046