Read Sharp AR-M700 (serv.man16) Service Manual online
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 23
(2) Remaining paper detection
a. Remaining paper detection
Remaining paper detection is performed according to four stages, i.e.
three stages with paper and one stage with no paper, and the result is
displayed.
three stages with paper and one stage with no paper, and the result is
displayed.
b. Detection method
The number of remaining sheets is determined according to the num-
ber of times the remaining paper sensor changes from the time the
paper feed tray starts lifting up to the time when the upper detection
sensor comes ON.
ber of times the remaining paper sensor changes from the time the
paper feed tray starts lifting up to the time when the upper detection
sensor comes ON.
(Figure showing state transition of the remaining paper detection sensor during tray elevation and
changes in status according to the number of remaining sheets)
The no-paper detection sensor
detects the state of no remaining paper.
detects the state of no remaining paper.
1/3 Field
Sensor logic: Low
Sensor logic: Low
2/3 Field
Sensor logic: Hi
Sensor logic: Hi
3/3 Field
Sensor logic: Low
Sensor logic: Low
During no-paper detection
Remaining paper 1/3 position
Remaining paper 2/3 position
Remaining paper 1/3 position
Turn plate
MCPED
(paper sensor)
(paper sensor)
Remaining Paper
Detection Actuator
Detection Actuator
MCSPD
(remaining paper detection sensor)
(remaining paper detection sensor)
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