Ricoh D129 Service Manual page 612

System SP Table-1
Fusing Nip Band Check
1109*
Checks the fusing nip band.
001 Execution
Idling Rotation Time
002
Specifies the fusing rotation time before executing SP1109-001.
Pre-Idling Time
003
Specifies the time that the paper stops in the fusing unit for measuring the
nip.
Fusing Jam Detection
1159
SC Code Display
[0 to 1 / 0 / 1] 0:OFF, 1:ON
This SP setting determines whether SC559 is issued after three paper late
jams occur in the fusing unit. After this SP code is turned on, a counter
monitors the number of paper late jams that occur in the fusing unit. After
the 3rd occurrence of a fusing jam, SC559 is issued and the machine
cannot be used until the service technician releases the error.

D129/D130
Switching the machine off/on does not reset this jam counter. The
counter is reset after the cause of the jam has been removed and a
sheet of paper successfully passes the fusing exit sensor.
[0 to 120 / 60 / 1 sec]
[5 to 30 / 10 / 1 sec]
3-8 SM Appendix