Ricoh D072 Service Manual page 454

Fusing Jam SC
1159*
Enables or disables consecutive jam detection at the fusing unit. If this SP is
1159 1 set to "1" (default: 0), consecutive fusing jam alarm occurs (SC559) when the
machine detects three consecutive paper jams at the fusing unit.
1902 Display-AC Freq.
Displays the fusing lamp power control frequency (as detected by the zero
1902 1 cross signal generator). The displayed value is 1/5 the actual frequency: 10
and lower = 50 Hz, 11 and higher = 60 Hz.
1911* By-pass Envelope
The program dedicated to envelope printing runs when you enable this
program (SP1-911-001) and you select "Thick Paper" as the paper type of the
1911 1
by-pass tray (
Bypass Tray).
SM Appendix
System Service Mode (Basic: D067/D072)
[0 = No / 1 = Yes]
[0 = No / 1= Yes]
> System Settings > Tray Paper Settings > Paper Type:
5-145 D067/D068/D069/D072