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-speedStops*2

Rotates at full-speed Rotates at low-speed*2

Rotates at full-speed*3

Rotates at full-speedStops*2

Lower Power

Stops *4

Silent

Abnormal status

Notes:

  1. 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
  2. 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
  3. 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.
  4. If the fan is rotating, the machine keeps rotating it until the time specified in SP1-950-001 through -004.