Sharp MX-FNX8 Service Manual ▷ View online
MX-FNX8 DETAILS 4 – 10
3. DRIVE LAYOUT
4. JUNCTION GATE
The position of the junction gate [A] determines the direction of
paper feed after paper enters the finisher. The junction gate
remains closed when booklet stapling is not selected for the job.
The paper passes over the junction gate and straight through the
finisher.
The junction gate opens and guides the paper down to the staple
tray when booklet stapling is selected for the job.
paper feed after paper enters the finisher. The junction gate
remains closed when booklet stapling is not selected for the job.
The paper passes over the junction gate and straight through the
finisher.
The junction gate opens and guides the paper down to the staple
tray when booklet stapling is selected for the job.
5. BOOKLET OUTPUT TRAY
The booklet output tray sensor actuator arm [A] rests on the top of
the stack of stapled booklets as they are output to the booklet out-
put tray. A flap depressor [B] keeps the open ends of the booklets
down.
The front booklet output tray full sensor [C] and rear booklet output
tray full sensor [D] detect when the booklet output tray is full of
booklets.
Important
• The front booklet output tray full sensor is mounted higher than
the stack of stapled booklets as they are output to the booklet out-
put tray. A flap depressor [B] keeps the open ends of the booklets
down.
The front booklet output tray full sensor [C] and rear booklet output
tray full sensor [D] detect when the booklet output tray is full of
booklets.
Important
• The front booklet output tray full sensor is mounted higher than
the rear booklet output tray full sensor.
• The booklet output tray is stationary. When it becomes full, the
stapling and folding job stops until booklets are removed from the
tray.
tray.
• If the booklet output tray is not installed (this is detected if the
front and rear sensors remain OFF), the machine will not operate
in the booklet staple and fold mode. When booklet mode is
selected, the tray full message appears on the operation panel.
in the booklet staple and fold mode. When booklet mode is
selected, the tray full message appears on the operation panel.
The combinations of the two actuators and two sensors as the
actuator arm rises determines the number of booklets that the
booklet output tray can hold before the job stops.
actuator arm rises determines the number of booklets that the
booklet output tray can hold before the job stops.
1
Upper Transport Motor
2
Feed Out Belt Motor
3
Fold Roller Motor
4
Folder Plate Motor
5
Positioning Roller Motor
6
Lower Transport Motor
7
Entrance Motor
1
2
3
4
5
6
7
[A]
Full 1
Full 2
Full 3
Ready
[A]
[B]
[C]
[D]
(1)
(2)
(3)
(4)
MX-FNX8 DETAILS 4 – 11
The tray full detection depends on the size of the paper and the
number of sheets in one stapled and folded booklet.
In the table below, the conditions ( (1) Ready (2) Full 1, (3) Full 2
(4) Full 3: See the illustration on the previous page) refer to the
states of the sensors described on the previous page.
number of sheets in one stapled and folded booklet.
In the table below, the conditions ( (1) Ready (2) Full 1, (3) Full 2
(4) Full 3: See the illustration on the previous page) refer to the
states of the sensors described on the previous page.
In the tables below:
• "Sht" denotes "sheets in a stack".
• "Cnt" denotes "Count" (see below for an explanation).
After a booklet is feed out, the fold roller motor stops the exit roller.
The machine then monitors the tray full sensors every 100 ms. The
machine checks for a certain condition, based on the size of the
paper and the number of sheets in the booklet.
An example is shown below. Tell the operators that the number of
sheets that the booklet output tray can hold will vary greatly.
Booklet Output Tray Full Condition Table
A3 (DLT)
• "Sht" denotes "sheets in a stack".
• "Cnt" denotes "Count" (see below for an explanation).
After a booklet is feed out, the fold roller motor stops the exit roller.
The machine then monitors the tray full sensors every 100 ms. The
machine checks for a certain condition, based on the size of the
paper and the number of sheets in the booklet.
An example is shown below. Tell the operators that the number of
sheets that the booklet output tray can hold will vary greatly.
Booklet Output Tray Full Condition Table
A3 (DLT)
A4 (LT)
Examples:
After the copier makes a booklet with 1 sheet of A3/DLT paper, the
machine checks every 100 ms for the ‘Full 1’ condition. If the Full 1
condition occurs 3 times (shaded block in the table above), the
machine detects that the tray is full.
After the copier makes a booklet with 5 sheets of A4/LT paper, the
machine checks every 100 ms for the ‘Full 2’ condition. If the Full 2
condition occurs 20 times (shaded block in the table above), the
machine detects that the tray is full.
After the copier makes a booklet with 1 sheet of A3/DLT paper, the
machine checks every 100 ms for the ‘Full 1’ condition. If the Full 1
condition occurs 3 times (shaded block in the table above), the
machine detects that the tray is full.
After the copier makes a booklet with 5 sheets of A4/LT paper, the
machine checks every 100 ms for the ‘Full 2’ condition. If the Full 2
condition occurs 20 times (shaded block in the table above), the
machine detects that the tray is full.
6. STACKING AND JOGGING
[A] Jogger Fence Motor
[B] Jogger Fences
[C] Positioning Roller
[D] Jogger Fence HP Sensor
[E] Edge Pressure Plate Solenoid
[F] Pressure Plate
At the beginning of the job, the jogger fence motor [A] switches on
and moves the jogger fences [B] to the standby position (7.5 mm
from the sides of the selected paper size).
When each sheet enters the stapling tray:
• The jogger fence motor switches on and moves the jogger
[B] Jogger Fences
[C] Positioning Roller
[D] Jogger Fence HP Sensor
[E] Edge Pressure Plate Solenoid
[F] Pressure Plate
At the beginning of the job, the jogger fence motor [A] switches on
and moves the jogger fences [B] to the standby position (7.5 mm
from the sides of the selected paper size).
When each sheet enters the stapling tray:
• The jogger fence motor switches on and moves the jogger
fences to within 5.5 mm of the sides of the selected paper size.
• The positioning roller solenoid switches on for the time pre-
scribed for the paper size. This pushes the positioning roller [C]
onto the sheet and pushes it down onto bottom fence. This aligns
the edge of the stack.
onto the sheet and pushes it down onto bottom fence. This aligns
the edge of the stack.
Next, the jogger fence motor:
• Switches on again and moves the jogger fences to within 2.6 mm
• Switches on again and moves the jogger fences to within 2.6 mm
of the sides of the stack to align the sides of the stack.
• Reverses and moves the fences to the standby position (7.5 mm
away for the sides) and waits for the next sheet.
• The jogger fence HP sensor [D] switches off the jogger motor at
the end of the job.
After the last sheet feeds:
• The edge pressure plate solenoid [E] switches on and pushes
• The edge pressure plate solenoid [E] switches on and pushes
the pressure plate [F] onto the stack to press down the edge for
stapling.
stapling.
Condition
Front Sensor
Rear Sensor
Ready
ON
OFF
Full 1
ON
ON
Full 2
OFF
ON
Full 3
(or booklet output tray not installed)
(or booklet output tray not installed)
OFF
OFF
1
Sht
2
Sht
3
Sht
4
Sht
5
Sht
6
Sht
7
Sht
8
Sht
9
Sht
...
Full
1
3
Cnt
-
-
-
-
-
-
-
-
...
Full
2
-
5
Cnt
15
Cnt
-
-
-
-
-
-
...
Full
3
-
-
-
7
Cnt
13
Cnt
4
Cnt
2
Cnt
2
Cnt
2
Cnt
...
1
Sht
2
Sht
3
Sht
4
Sht
5
Sht
6
Sht
7
Sht
8
Sht
9
Sht
...
Full
1
16
Cnt
-
-
-
-
-
-
-
-
...
Full
2
-
10
Cnt
10
Cnt
15
Cnt
20
Cnt
15
Cnt
10
Cnt
8
Cnt
8
Cnt
...
Full
3
-
-
-
...
[A]
[B]
[C]
[D]
[E]
[F]
MX-FNX8 DETAILS 4 – 12
7. BOOKLET STAPLING
A. BOOKLET PRESSURE MECHANISM
[A] Booklet Pressure Roller Solenoid
[B] Booklet Pressure Roller Arm
[C] Booklet Pressure Roller
As soon as the edges are aligned by the positioning roller and the
jogger fences, the stack feed out belt moves.
In booklet mode, immediately after the edges are aligned by the
positioning roller and jogger fences, the booklet pressure solenoid
switches on and the booklet pressure roller presses down on the
stack until booklet stapling is finished. This prevents the stack from
shifting during stapling.
[B] Booklet Pressure Roller Arm
[C] Booklet Pressure Roller
As soon as the edges are aligned by the positioning roller and the
jogger fences, the stack feed out belt moves.
In booklet mode, immediately after the edges are aligned by the
positioning roller and jogger fences, the booklet pressure solenoid
switches on and the booklet pressure roller presses down on the
stack until booklet stapling is finished. This prevents the stack from
shifting during stapling.
B. BOOKLET STAPLING AND FOLDING
(1) Overview
1
The last sheet of the stack [1] enters the stapling tray. The jogger
fences [2] jog the last sheet into position (based on the width of the
selected paper size) and then retract and stop 1 mm away from the
sides of the stack.
2
The pressure plate [3] and booklet pressure roller [4] press down
on the sheet. The stack feed out belt switches on and the pawl [5]
on the feed out belt catches the bottom of the stack and raises it.
The stapling tray sensor [6] detects the trailing edge of the paper
stack.
3
The feed out belt [7] raises the stack to the prescribed stapling
position and stops. The jogger fences move to the sides of the
stack and the booklet staplers [8] staple the stack.
The last sheet of the stack [1] enters the stapling tray. The jogger
fences [2] jog the last sheet into position (based on the width of the
selected paper size) and then retract and stop 1 mm away from the
sides of the stack.
2
The pressure plate [3] and booklet pressure roller [4] press down
on the sheet. The stack feed out belt switches on and the pawl [5]
on the feed out belt catches the bottom of the stack and raises it.
The stapling tray sensor [6] detects the trailing edge of the paper
stack.
3
The feed out belt [7] raises the stack to the prescribed stapling
position and stops. The jogger fences move to the sides of the
stack and the booklet staplers [8] staple the stack.
[A]
[B]
[C]
10
11
12
13
14
15
16
17
18
2
3
4
5
6
7
8
9
19
20
21
1
22
23
1
Leading Edge Pressure Roller
2
Stack Present Sensor
3
Feed Out Belt Pawl 1
4
Booklet Staplers x2
5
Stack Feed Out Belt HP Sensor
6
Feed Out Belt Pawl 2
7
Positioning Roller
8
Jogger Fences x2
9
Stack Exit Roller
10
Pressure Plate
11
Stapling Tray Bottom Fence
12
Corner Stapler
13
Stapling Tray Paper Sensor
14
Feed Out Belt
15
Fold Unit Bottom Fence
16
Fold Bottom Fence HP Sensor
17
Fold Unit Entrance Sensor
18
Fold Unit Exit Rollers x2
19
Fold Unit Exit Sensor
20
Fold Rollers x2
21
Clamp Rollers x2
22
Stack Junction Gate
23
Stack Transport Roller
1
2
3
2
1
3
4
5
6
7
8
MX-FNX8 DETAILS 4 – 13
4
The jogger fences remain 1 mm away from the sides of the stack.
The feed out belt [1] raises the stack until the top of the stack is 10
mm past the leading edge pressure roller [2] and stops. The lead-
ing edge pressure roller descends and applies pressure to the top
of the stack. The stack junction gate [3] (normally open) closes.
The pressure roller [4] and pressure plate [5] retract.
5
The feed out belt [6], transport rollers [7], [8], and clamp rollers [9]
rotate and feed the stack past the closed stack junction, over the
top and down toward the bottom fence [10]. At the same time, the
fold unit bottom fence descends from its home position and stops
10 mm below the fold position.
6
The rollers feed the leading edge of the stack to within 3 mm of the
stack stopper of the bottom fence [13]. The fold unit entrance sen-
sor [11] detects the stack and opens the clamp rollers [12]. The
stack drops 3 mm onto the fold unit bottom fence [13]. At this time,
the first sheet [14] of the next stack feeds to the stapling tray.
The jogger fences remain 1 mm away from the sides of the stack.
The feed out belt [1] raises the stack until the top of the stack is 10
mm past the leading edge pressure roller [2] and stops. The lead-
ing edge pressure roller descends and applies pressure to the top
of the stack. The stack junction gate [3] (normally open) closes.
The pressure roller [4] and pressure plate [5] retract.
5
The feed out belt [6], transport rollers [7], [8], and clamp rollers [9]
rotate and feed the stack past the closed stack junction, over the
top and down toward the bottom fence [10]. At the same time, the
fold unit bottom fence descends from its home position and stops
10 mm below the fold position.
6
The rollers feed the leading edge of the stack to within 3 mm of the
stack stopper of the bottom fence [13]. The fold unit entrance sen-
sor [11] detects the stack and opens the clamp rollers [12]. The
stack drops 3 mm onto the fold unit bottom fence [13]. At this time,
the first sheet [14] of the next stack feeds to the stapling tray.
7
The bottom fence [1] raises the stack to the prescribed fold position
[2].
8
The fold plate [3] moves to the left and advances 1/3 its maximum
horizontal stroke and exerts 20 kg (44 lb.) of pressure at the fold
rollers [4].
9
With the fold plate pushing the stack into nip of the fold rollers [5],
the fold rollers begin to rotate and fold the stack as it feeds out.
The bottom fence [1] raises the stack to the prescribed fold position
[2].
8
The fold plate [3] moves to the left and advances 1/3 its maximum
horizontal stroke and exerts 20 kg (44 lb.) of pressure at the fold
rollers [4].
9
With the fold plate pushing the stack into nip of the fold rollers [5],
the fold rollers begin to rotate and fold the stack as it feeds out.
10
When the fold rollers [1] feed the stack 10 mm past the nip, the fold
plate retracts until it no longer touches the stack. The fold unit exit
sensor [2] detects the folded edge of the stack and stops the fold
rollers.
11
The rotation of the fold rollers [4] reverses and feeds the folded
edge back until only 3 mm of the fold [5] remains at the nip.
12
The fold rollers [6] rotate forward once again feed out. The fold unit
exit sensor [7] once again detects the edge of the fold.
When the fold rollers [1] feed the stack 10 mm past the nip, the fold
plate retracts until it no longer touches the stack. The fold unit exit
sensor [2] detects the folded edge of the stack and stops the fold
rollers.
11
The rotation of the fold rollers [4] reverses and feeds the folded
edge back until only 3 mm of the fold [5] remains at the nip.
12
The fold rollers [6] rotate forward once again feed out. The fold unit
exit sensor [7] once again detects the edge of the fold.
13
With the feed of the stack halted, the fold plate [1] retracts. The fold
plate HP sensor (not shown) detects the fold plate and stops it at its
home position.
14
The fold rollers [2] and fold unit exit rollers [3] begin to rotate
together and feed out the folded booklet to the booklet output tray.
15
Once the trailing edge of the stack passes the fold unit exit sensor
[4], the clamp rollers [5] close to be ready to feed the next stack.
The fold unit bottom fence [6] descends. The bottom fence HP sen-
sor [7] stops the bottom fence when it detects the actuator on the
bottom fence.
With the feed of the stack halted, the fold plate [1] retracts. The fold
plate HP sensor (not shown) detects the fold plate and stops it at its
home position.
14
The fold rollers [2] and fold unit exit rollers [3] begin to rotate
together and feed out the folded booklet to the booklet output tray.
15
Once the trailing edge of the stack passes the fold unit exit sensor
[4], the clamp rollers [5] close to be ready to feed the next stack.
The fold unit bottom fence [6] descends. The bottom fence HP sen-
sor [7] stops the bottom fence when it detects the actuator on the
bottom fence.
4
5
6
10
11
12
13
14
1
2
3
4
5
6
7
8
9
7
8
9
1
2
3
4
5
0 (default, as
explained above):
explained above):
The rollers rotate forward and in reverse one time,
then forward to feed out the booklet.
then forward to feed out the booklet.
1:
The rollers rotate forward and in reverse two times
(default plus 1)
(default plus 1)
-1:
The rollers rotate forward but not in reverse
1
2
3
4
5
6
7
10
11
12
13
14
15
1
2
3
4
5
6
7
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