Sharp MX-FN24 / MX-FN25 (serv.man2) Service Manual ▷ View online
MX-FN25 MECHANISM 3 – 1
MX-FN25
Service Manual
[3] MECHANISM
1. Composition layout (* in the figure:
For the MX-FNX7/FN25 only)
1)
Proof branch, staple branch
The paper path is selected between the path to the proof tray
and the path to the upper tray depending on presence of sort
or staple.
The paper path is selected between the path to the proof tray
and the path to the upper tray depending on presence of sort
or staple.
2)
Proof tray
When the sort mode and the staple mode are not selected,
copy paper is discharged to this tray.
When the sort mode and the staple mode are not selected,
copy paper is discharged to this tray.
3)
Tray assembly
This tray lifts up or moves down in the sort mode depending on
the copy discharge quantity (the number of copy sets).
This tray lifts up or moves down in the sort mode depending on
the copy discharge quantity (the number of copy sets).
4)
Tray paper folding section (The MX-FNX7/FN25 only)
Center binding copy is discharged to this tray in the sort mode.
Center binding copy is discharged to this tray in the sort mode.
5)
Pre-stack section
The first page of the second or later sets is switch-back trans-
ported and kept in standby, and fed together with the second
page to the staple tray.
The first page of the second or later sets is switch-back trans-
ported and kept in standby, and fed together with the second
page to the staple tray.
6)
Center binding staple section (The MX-FNX7/FN25 only)
Sheets of copy paper are aligned by the alignment roller and
the jogger fence, performing stapling.
Sheets of copy paper are aligned by the alignment roller and
the jogger fence, performing stapling.
2. Electric parts layout
Proof tray
Tray
assembly
assembly
* Center binding
stapler
* Folding plate
* Folding roller
*
Proof branch
pawl
pawl
Punch unit
Staple branch
pawl
pawl
Pre-stack
branch pawl
branch pawl
Pre-stack tray
Edge binding
stapler
stapler
Tray
paper folding
section
paper folding
section
Signal name
Parts name
M2
UPTRS_M
Upper transport motor
M4
EXIT_M
Paper exit motor
M10
STRLVI_M
Return roller oscillation motor
M18
SFT_M
Shift motor
M19
EXGPLT_M
Paper exit guide plate open/close motor
S1
FINENT
Inlet sensor
S5
SFTROLHP
Shift HP sensor
S6
UPTRYEXT
Shift tray paper exit sensor
S7
EXGPLTHP
Paper exit guide plate HP sensor
S8
UTRPHNST
Staple mode paper surface detection
S9
UTRPHSTP
Shift mode paper surface detection
S10
PRFTRYEX
Proof tray paper exit sensor
S11
PRFTRYFL
Proof tray full sensor
S12
UPTRYLMT
Shift mode rear edge detection
S13
STKROLHP
Oscillation return roller HP sensor
SOL1
UPJCTG_S
Proof branch pawl SOL
SOL2
LOJCTG_S
Staple branch pawl SOL
-
-
Tray upper limit SW
M18
S5
S8
S6
M10
M4
SOL2
S7
S10
S1
S9
S12
Tray upper limit
SW
SW
S13
M19
M2
SOL1
S11
MX-FN25 MECHANISM 3 – 2
Signal name
Parts name
M1
ENT_M
Inlet motor
M3
LOTRS_M
Lower transport motor
M14
POP_M
Beating roller drive motor
M21
TRYLFT_M
Tray up/down motor
S2
PSTRYEXT
Staple paper exit sensor
S19
UPTRFLSD
Full sensor: Center binding (*)
S20
UPTRFLNS
Full sensor: Without center binding
S33
SDLFLLR
Center binding tray full sensor (*)
S34
SDLFLLF
Center binding tray full sensor (*)
SOL3
POS_S
Beating SOL
SOL4
TEGPRS_S
Rear edge holding SOL
SOL5
SDLPRS_S
Center binding holding SOL (*)
-
-
PCB: STP: Control plate
-
-
PCB: Main: Control plate
-
-
Door SW
* SOL5
PCB: STP:
Control plate
Control plate
PCB: Main:
Control plate
Control plate
S20
* S19
* MX-FNX7/FN25 only
* S34
* S33
M14
SOL3
SOL4
S2
Door SW
M1
M3
M21
M24
S24
M9
S21
S4
S3
S22
M7
PCB: Punch: Control plate
Signal name
Parts name
M7
STSMOV_M
Horizontal resist detection sensor shift motor
M9
PNCHMV_M
Punch shift motor
M24
PNCH_M
Punch drive motor
S21
PNCHMVHP
Punch shift HP sensor
S22
PAPPOSHP
Horizontal resist detection HP sensor
S24
PNCHENC
Punch HP sensor
S3
PAPPOS
Horizontal resist detection sensor
S4
PNCHHPFL
Punch dust full sensor
-
-
PCB: Punch: Control plate
Signal name
Parts name
M5
BLT_M
Discharge motor
M6
STPMV_M
Stapler shift motor
M13
STPROT_M
Stapler slant motor
M15
JOG_M
Jogger motor
M17
BDJCTG_M
Bundle branch open/close (*)
M20
STPMOV_M
Stapler
M22
SDLSTF_M
Center binding stapler (*)
M23
SDLSTR_M
Center binding stapler (*)
S14
STPTRPAP
Stapler tray paper presence sensor
S15
JOGHPS
Jogger HP sensor
S16
BLTHPS
Discharge pawl HP sensor
S17
CONSTPHP
Stapler shift HP sensor
S18
STPROTHP
Stapler slant HP sensor
S27
STJCTGHP
Bundle branch open/close HP (*)
S32
STKPRST
Lead edge detection sensor (*)
* S27
* M17
S18
S17
M13
M20
S14
M6
S15
M15
* M23
* M22
M5
S16
*S32
MX-FN25 MECHANISM 3 – 3
3. Drive layout
4. Branch mechanism
1)
Paper is branched to the three directions by the proof branch
pawl and the staple branch pawl.
pawl and the staple branch pawl.
2)
In the proof mode, when discharging to the proof tray, copy
paper is transported to the proof tray by the proof branch pawl.
paper is transported to the proof tray by the proof branch pawl.
3)
In the shift mode, the proof branch pawl and the staple branch
pawl do not operate, and copy paper is transported to the shift
tray.
pawl do not operate, and copy paper is transported to the shift
tray.
Signal name
Parts name
M8
DRRLVI_M
Drive roller oscillation motor (*)
M11
FLDPLT_M
Folding plate drive motor (*)
M12
FLDROL_M
Folding roller motor (*)
M16
TALFNC_M
Rear edge fence motor (*)
S25
CLPROLHP
Drive roller HP sensor (*)
S26
FLDUNENT
Reach sensor (*)
S28
FLDBTMHP
Rear edge fence HP sensor (*)
S29
FLDPLTHP
Folding plate HP sensor (*)
S30
FLDCMHP
Folding HP sensor (*)
S31
FLDUNEXT
Folding pass sensor (*)
Signal name
Parts name
M1
ENT_M
Inlet motor
M2
UPTRS_M
Upper transport motor
M3
LOTRS_M
Lower transport motor
M4
EXIT_M
Paper exit motor
M5
BLT_M
Discharge motor
M11
FLDPLT_M
Folding plate drive motor (*)
M12
FLDROL_M
Folding roller motor (*)
M14
POP_M
Beating roller drive motor
M21
TRYLFT_M
Tray up/down motor
* S25
* S31
* M8
* S26
* S28
* S30
* M16
* S29
* M11
* M12
* MX-FNX7/FN25 only
M2
M1
M3
M14
M4
M21
M5
* MX-FNX7/FN25 only
* M12
* M11
When in the proof mode:
Staple branch pawl
Proof branch pawl
In the shift mode:
MX-FN25 MECHANISM 3 – 4
4)
In the staple mode, the staple branch pawl operates to trans-
port copy paper to the staple section.
port copy paper to the staple section.
5. Pre-stack mechanism
Four sheets can be discharged with max. three sheets of pre-stack.
In the example below, descriptions are made on discharge of three
sheets with two sheets of pre-stack.
1)
In the example below, descriptions are made on discharge of three
sheets with two sheets of pre-stack.
1)
Stapling the first set is performed.
2)
The first sheet of the second set is switch-back transported to
the pre-stack tray.
the pre-stack tray.
3)
The first sheet of the second set is transported from the pre-
stack tray. At the same time, transport of the second sheet of
the second set is started.
stack tray. At the same time, transport of the second sheet of
the second set is started.
4)
Transport of the first sheet of the second set is completed. At
the same time, the rear edge of the second sheet of the sec-
ond set passes the branch pawl.
the same time, the rear edge of the second sheet of the sec-
ond set passes the branch pawl.
5)
The first sheet and the second sheet of the second set are
switch-back transported together to the pre-stack tray.
switch-back transported together to the pre-stack tray.
6)
Stapling of the first set is completed. At the same time, the first
sheet and the second sheet of the second set are transported
together from the pre-stack. Transport of the third sheet of the
second set is also started.
sheet and the second sheet of the second set are transported
together from the pre-stack. Transport of the third sheet of the
second set is also started.
In the staple mode:
Staple branch pawl
Bundle of 1st set
1st sheet of 2nd set
2nd sheet of 2nd set
Pre-stack tray
Pre-stack Branch pawl
3rd sheet of 2nd set
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