Controlling The Toner Feed Motor And Toner Agitation Motor; Toner Empty Detection By The Toner Level Sensor - Kyocera Mita KM-4530 Service Manual

(2-2) Controlling the toner feed motor and toner agitation motor

The toner feed motor (TFM) and toner agitation motor (TAM) are turned on and off based on the toner sensor output
voltage as follows:
• Under normal conditions
When the toner sensor output voltage is larger than the toner control level
Toner feed motor (TFM): Turned on for 0.5 s and turned off for 1.5 s
Toner agitation motor (TAM): Turned on for 1 s and turned off for 1 s
When the toner sensor output voltage is larger than the toner control level plus 20
Toner feed motor (TFM): Turned on for 0.5 s and turned off for 0.5 s
Toner agitation motor (TAM): Turned on for 0.5 s and turned off for 0.5 s
When the toner sensor output voltage is larger than the toner control level plus 25
Toner feed motor (TFM): Continuously turned on
Toner agitation motor (TAM): Continuously turned on
• During toner feed
When the toner sensor output voltage is larger than the toner empty detection level (toner feed performed when the level
of toner in the toner hopper drops abruptly)
Toner feed motor (TFM): Continuously turned on
Toner agitation motor (TAM): Continuously turned on
When the toner sensor output voltage is larger than the toner control level plus 20
Toner feed motor (TFM): Turned on for 1.5 s and turned off for 0.5 s
Toner agitation motor (TAM): Turned on for 1.5 s and turned off for 0.5 s
When the toner sensor output voltage is larger than the toner control level plus 14
Toner feed motor (TFM): Turned on for 1 s and turned off for 1 s
Toner agitation motor (TAM): Turned on for 1.5 s and turned off for 0.5 s

(2-3) Toner empty detection by the toner level sensor

When the setting of maintenance item U136 is "ON," the toner level sensor (TLDS) detects toner empty in the toner
hopper.
1 .When the toner in the toner hopper is exhausted and the toner level sensor (TLDS) turns off, toner empty is detected
and the toner request message appears.
2 .When the number of copies made after the toner level sensor (TLDS) has turned off reaches the limit set in
maintenance item U258, the toner request message and a message indicating that copying is disabled appear.
3 .When toner is replenished into the toner hopper and the toner level sensor (TLDS) turns on, the toner empty
detection is reset and toner feed motor (TFM) starts toner feed.
2BC/D
2-1-25