Ricoh SP 8400DN Field Service Manual page 1433

Condition Development
Exhaust Heat
Fan
Warm-up Stops
Standby Rotates in low
speed
During Rotates
printing
After Rotates in low
1
printing speed *
Abnormal Stops
(Jams)
*1 When the temperature in the machine reaches 42 degrees, these fans keep revolving until the temperature
decreases by two degrees.
Print Duty Control
1. The machine repeats a 16-page-print and 25-second-pause. The following two messages will alternatively
appear on the operation panel.
"The printing speed is now being limited, because the internal cooling fan is active."
"Internal cooling fan is active."
2. All the fan motors in the machine works after printing and standby. The message will appear on the operation
panel.
"Internal cooling fan is active."
3. If the temperature of the image processing unit reaches under the pre-set temperature, the machine turns to
the normal control.
Paper Fusing
Exit Fan Fan
Stops Stops
Stops Rotates in
low speed
Rotates Rotates
1
Stops* Rotates in
low
1
speed*
Stops Stops
Development PSU
Bearing Cooling Cooling
Fan Fan
Stops Stops
Stops Stops
Rotates Rotates
1
Stops* Stops*
Stops Stops
7.Detailed Descriptions
Front Development
Cooling Fan
Stops
Stops
Rotates
1
Stops
Stops
695