Ricoh M001 Service Manual page 187

7931 018 Install Date
7931 019 Toner End Date
7931 020 Conductor Time1
7931 021 Conductor Time2
7931 022 Conductor Time3
7931 023 Conductor Time4
CartRidge Life
Displays information about the cartridge service life.
Returns a value of "0" if the number stored in the cartridge is not
7932
recognized.
This is information on the AIO ID Chip so if the cartridge is not installed,
if the AIO is not set properly, or if the front door is open, no value will be
displayed because the machine cannot communicate with the AIO.
SM
Displays Year-Month-Date of installation for the AIO
unit, this setting updates automatically through a serial
interface with the machine when the new unit is
installed.
Displays Year-Month-Date when toner end occurred
Displays a number in the range "0" to "00000000", this
is the count for OPC.
Note:
This information resides at four locations (020,
021, 022, 023. The recycle count determines
where the value is written.
The counter increments by "1" for every 6 sec. of
drum rotation time.
To calculate the actual time in sec., multiply the
displayed value by 6.
5-69
Printer Engine Service Mode
M001