Ricoh B121 Service Manual page 189

Fan Control Timer
1110*
1110 1 [30 ~ 60 / 30 / 1 s/step]
Inputs the fan control time. The fan maintains normal speed for the specified time
after occurrence of an SC or following entry into Warm-up mode, Low Power mode,
or Night/Off mode.
1902 Display-AC Freq.
1902 1 Displays the fusing lamp power control frequency (as detected by the zero cross
signal generator). The displayed value is 1/5 the actual frequency: 10 = 50 Hz, 12 =
60 Hz.
1903* Feed Clutch Boost
Adjusts the amount of extra push that the feed clutch gives to the paper after the
skew has been corrected at registration. This feature helps the registration roller
feed certain types of paper (such as thick paper). Increase the value if thick paper is
jamming after feeding from the registration roller.
1903 1 By-pass tray
1903 2 2nd, 3rd, 4th tray
1908* Optional Tray Adj.
Adjusts the reverse time for the upper and lower paper lift motors.
1908 1 1st optional
1908 2 2nd optional
1911* By-pass Envelope
1911 1 [0 = Disabled / 1= Enabled
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 by-pass tray
( > System Settings > Tray Paper Settings > Paper Type: Bypass Tray).
SM
SERVICE PROGRAM MODE
[0 ~ 10 / 6 / 1 mm/step]
[0 ~ 10 / 3 / 1 mm/step]
[–2 ~ +2 / 0 / 1/step]
Detailed Descriptions – Optional Paper Tray Unit
5-29 B121 Series/B259 Series