Ricoh Aficio MP2550B Service Manual page 399

1: LT
[0 to 1 / 0 / 1] Other Areas (Europe/Asia)
0: A4
1: LT
5912* PCU Alarm Setting
1 Display
2 Interval
5913 Switchover Permission Time
Sets the length of time to elapse before allowing another application to take
control of the display when the application currently controlling the display is
not operating because a key has not been pressed.
[3 to 30/1 s]
Mechanical Counter Detection
Checks whether the mechanical counter inside the inner cover is connected
or not.
5915*
Display:
0: Not detected
1: Detected
2: Unknown
Exhaust Fan Control
5921*
Sets the timing for slowing the exhaust fan motor speed or shutting the motor
off for normal operation, depending on the following conditions:
SM
Sets the PCU alarm interval. When the machine reaches this
value, the PCU alarm will be displayed on the LCD to inform the
user.
[0 to 255 / 60 / 1 k copies/step]
The zero setting switches the alarm off.
5-135
SP5xxx: Mode
D017/D018/D019/D020