M721 (Sub-Tray Paper Exit) Control - Konica Minolta FS-110 Service Manual

[10] M721 (sub-tray paper exit) Control

MAIN BODY
M721 (sub-tray paper exit), controlled by the
FNS CB (FNS control board), drives the sub-tray
paper exit roller.
The related signals are PS701 (sub-tary paper
exit), PS704 (FNS entrance), and PS719 (sub-
tray full).
1. Operation
a. M721 (sub-tray paper exit) Control
M721 (sub-tray paper exit) starts its high-speed
rotation when PS701 (sub-tray paper exit)
detects the leading edge of the paper.
When PS704 (FNS entrance) has detected the
trailing edge of the paper and a predefined time
period has elapsed since then, the rotation of
M721 changes to low.
When PS701 detects the trailing edge of the
paper and a predefined time period has elapsed,
M721 stops.
b. Sub-tray full detection
When the papers ejected to sub-tray reach to
specified height, PS719 (sub-tray full) turns ON,
and FNS transmits "sub-tray full" information to
the main body.
When the main body receives it, the message is
displayed on the operation panel.
24V
24V
M721 DRV A
M721
M721 DRV A
M721 DRV B
M721 DRV B
5V
PS701 IN PS701
GND
5V
PS704 IN PS704
GND
5V
PS719 IN PS719
GND
FNS CB
2. Signals
a. FNS CB input signals
(1) PS701 IN (PS701 to FNS CB)
Signal indicating the existence of the paper at the
location of the sub-tray paper exit sensor.
[L]: Paper does not exist.
[H]: Paper exists.
(2) PS719 IN (PS719 to FNS CB)
Signal indicating the sub-tray full
[L]: Sub-tray full
[H]: Sub-tray not full
b. FNS CB output signals
(1) M721 DRV A, A(FNS CB to M721)
Pulse signal to drive/control the Phase A of M721
(2) M721 DRV B, B(FNS CB to M721)
Pulse signal to drive/control the Phase B of M721
2-13
FS-110/FS-210