Ricoh Aficio MP201SPF Service Manual page 276

System Service Mode
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).
D115/D116
[0 = No / 1= Yes]
> System Settings > Tray Paper Settings > Paper Type:
3-4 SM Appendix