New Fusing Unit Detection [All Models] - Ricoh G112 Service Manual

IMAGE FUSING AND PAPER EXIT [ALL MODELS]

6.5.5 NEW FUSING UNIT DETECTION [ALL MODELS]

[A]
There are two types of fusing unit: the Service unit, and the Maintenance Kit unit.
(NOTE: Only the fusing unit in the maintenance kit has the following detection
mechanism.)
In the maintenance kit fusing unit, the looped wire on the fusing unit connector
contains a fuse [A]. When power is switched on after installing a new fusing unit,
the engine board detects the fusing unit through the looped wire. However, the fuse
opens very shortly afterwards.
What happens next depends on the setting of engine SP mode 5930 (Meter
Charge):
If Meter Charge Mode is enabled
• After the technician replaces the fusing unit, the maintenance counter must be
reset with engine SP mode 7-804.
• 7-804-1: Transfer roller
• 7-804-2: Paper feed roller
• 7-804-3: Fusing unit).
• 7-804-255: Paper (G112/G113/G116)
If Meter Charge Mode is disabled (default setting)
• After the fusing unit has been replaced, the CPU detects the new unit and
automatically removes the "Replace Maintenance Kit" message. Then, the
maintenance counter resets automatically.
NOTE: The G091/G094/G095 and the G112/G113/G116 Maintenance Kits are not
interchangeable. Ensure you are using the correct kit for the model you are
servicing.
G112/G113/G116/G094/G095/G091 6-34
G094D546.WMF
SM