Service manual

MX-FNX1/MX-PNX1 EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 2
No. Signal Name Type Function/Operation Output
1 FULD Tray upper limit sensor Photo interrupter Detects the upper limit position of the
paper load tray up/down shift area.
TP1 is driven to “L” at the upper limit
position.
2 FMLLD Tray intermediate lower limit
sensor
Photo interrupter Detects the intermediate position of the
paper load tray up/down shift area.
TP2 is driven to “L” at the intermediate
position.
3 FLLD Tray lower limit sensor Photo interrupter Detects the lower limit position of the
paper load tray up/down shift area.
TP3 is driven to “L” at the lower limit
position.
4 FBED Tray paper empty sensor Photo interrupter Detects paper empty in the paper load
tray.
TP4 is driven to “L” when paper is
provided.
5 FSLD1 Paper surface sensor 1 Photo interrupter Detects the surface position of paper on
the tray in combination of the both sensors
outputs.
*Refer to the separate table outside the
column.
6 FSLD2 Paper surface sensor 2 Photo interrupter
7 FSTHPD Stapler HP sensor Photo interrupter Detects the home position of the stapler
unit in F/R direction shift.
TP7 is driven to “H” at the home position.
8 FSTPD Empty sensor Photo interrupter Detects paper empty on the process tray. TP8 is driven to “H” when paper is
provided.
9 FFJHPD Alignment plate HP sensor F Photo interrupter Detects the home position of the alignment
guide on F side.
TP9 is driven to “L” at the home position.
10 FRJHPD Alignment plate HP sensor R Photo interrupter Detects the home position of the alignment
guide on R side.
TP10 is driven to “L” at the home position.
11 FED Inlet port sensor Photo interrupter Detects paper in the inlet port of the
finisher.
TP11 is driven to “H” when paper is
provided.
12 FRLD Roller up/down sensor Photo interrupter Detects the upper standby position of up/
down movement of the bundle exit roller.
TP12 is driven to “L” when the roller
reaches the upper standby position.
13 FBRD Take-up belt sensor Photo interrupter Detects up/down positions of the take-up
belt.
TP13 is driven to “L” when the take-up belt
is on the upper side.
14 FDSW Front cover switch Photo interrupter Detects open/close of the jam release
cover in the front section.
TP15 is driven to “L” when the cover is
closed.
15 FJPD Alignment plate position sensor Photo interrupter Detects entry of the process section rear
edge stopper into the opening of the
stapler and inhibits stapling.
TP50 is driven to “L” when the stopper
enters the opening of the stapler.
16 FSHPD Stapler home sensor Detects the home position of the stapling
mechanism. (Sensor built in the stapler
unit)
TP51 is driven to “H” at the home
(standby) position.
17 FSD Staple empty sensor Detects staple empty. (Sensor built in the
stapler unit)
TP53 is driven to “L” when staple empty.
18 FSTD Self priming sensor Detects the staple feed is completed and it
is ready for stapling. (Sensor built in the
stapler unit)
TP52 is driven to “H” when in the ready
state.
FSLD1 FSLD2
State
TP5 TP6
“L” “H” The paper detection lever is in the save position.
“H” “H” The paper surface is upper than the reference level.
“H” “L” The paper surface is at the reference level.
“L” “L” The paper surface is lower than the reference level.