The following tables summarize the fan control.
Fan Control Overview
Status  | PCDU Cooling Duct Fan  | Fusing Fan  | PSU Fan  | LD Unit Fan  | 
|---|---|---|---|---|
Engine Off  | Off  | |||
Power ON – Warm-up  | Stops  | |||
Standby  | Stops  | Rotates at low speed  | Stops  | Stops  | 
Standby after printing  | *1  | |||
Printing  | Rotates at full-speed  | Rotates at full-speed  | Rotates at full-speed*3  | Rotates at full-speed  | 
Lower Power  | Stops *4  | |||
Silent  | ||||
Abnormal status  | ||||
Notes:
- Keeps the printing status for the time specified in SP1-950-001 through -004. Then the fan keeps rotating until it reaches the temperature specified in SP2-241-004.
001: PCDU Cooling Duct Fan
002: Fusing Fan
003: PSU Fan
004: LD Unit Fan - Rotates at full speed when the temperature around the drum exceeds the temperature specified in SP1-955-001 through -004; Stops or rotates at low-speed when the temperature is out of the threshold specified in SP1-955-005.
001: PCDU Cooling Duct Fan
002: Fusing Fan
004: LD Unit Fan - If the time interval between the end timing of the last printing status and the start timing of the next printing status exceeds the value in SP1-955-007, the machine stops the fan until the duration specified in SP1-955-006, and then rotates at full speed.
 - If the fan is rotating, the machine keeps rotating it until the time specified in SP1-950-001 through -004.