Ricoh M001 Service Manual page 144

Printer Engine Service Mode
Fusing Err Clr
5810
Resets an SC code for a fusing unit error.
After using this SP mode, turn the main switch off and on.
5811 Machine No. Sett DFU
Used to input the machine serial number. This is normally done at the
factory.
Tel. No. Setting
5812
Use these SP modes to input service and support telephone numbers. Enter
the number and press [#Enter].
5812 1 Service
5812 2 Fax Tel No.
M001
Use this to input the telephone number of the CE printed on
the SP print mode printout.
Use this to input the fax number of the CE printed on the SP
print mode printout.
5-26 SM