Sharp MX-CFX1 User manual

SERVICE MANUAL
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
CONTENTS
CODE: 00ZMXCFX1/S1E
[1] PRODUCT OUTLINE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[3] UNPACKING AND INSTALLATION
*For unpacking and installation, refer to the installation manual( [5] ).
[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES . . . . . . . . . . . . . . 4-1
[5] OPERATIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
[6] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
[7] MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
[8] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
[9] SIMULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
[10] SELF DIAG MESSAGE AND TROUBLE CODE . . . . . . . . . . . . . . . . . 10-1
[11] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
DIGITAL FULL COLOR
MULTIFUNCTIONAL SYSTEM
OPTION
INSERTER
MX-CFX1
MODEL

CONTENTS
[1] PRODUCT OUTLINE. . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] SPECIFICATIONS
1. Basic specifications . . . . . . . . . . . . . . . . . . . . . . 2-1
[3] UNPACKING AND INSTALLATION
*Forw unpacking and installation, refer to the installation
manual( [5] ).
[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES
1. External components . . . . . . . . . . . . . . . . . . . . . 4-1
2. Sensors and switches. . . . . . . . . . . . . . . . . . . . . 4-1
3. Motors, solenoid, and clutch . . . . . . . . . . . . . . . . 4-2
[5] OPERATIONAL DESCRIPTION
1. Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
2. Function outline . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
3. Operational description. . . . . . . . . . . . . . . . . . . . 5-1
4. Offline mode setting . . . . . . . . . . . . . . . . . . . . . . 5-4
5. LED indication on operator panel . . . . . . . . . . . . 5-6
6. Paper jam/error detection . . . . . . . . . . . . . . . . . . 5-7
[6] DISASSEMBLY AND ASSEMBLY
1. Paper feed separation unit . . . . . . . . . . . . . . . . . 6-1
2. Paper feed unit . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
3. Drive unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
4. PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
5. Motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6. Other parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
7. Note on assembly . . . . . . . . . . . . . . . . . . . . . . . . 6-7
[7] MAINTENANCE
1. Maintenance list . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
[8] ADJUSTMENTS
1. Paper width detection level setting (adjustment) 8-1
[9] SIMULATION
1. List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
2. Details of trouble code . . . . . . . . . . . . . . . . . . . . 9-1
[10] SELF DIAG MESSAGE AND TROUBLE CODE 10-1
[11] ELECTRICAL SECTION
1. Actual wiring chart . . . . . . . . . . . . . . . . . . . . . . .11-1
2. Circuit description . . . . . . . . . . . . . . . . . . . . . . . .11-3

MX-CFX1 PRODUCT OUTLINE 1 – 1
MX-CFX1 Service Manual
[1] PRODUCT OUTLINE
This inserter is an optional unit for the MX-5500N/MX-6200N/MX-
7000N series of digital complex machines. With the inserter
installed, blank sheets or printed sheets can be inserted as covers
(made of cardboard) or tabbed sheets without being subject to the
printing process (and without passing through a fixing unit). When
the inserter is combined with a finisher (optional) and a punch unit
(optional), printed sheets can proceed to the hole punching or sta-
pling process without being subject to the copying process (or with-
out passing through the main unit).
MX-CFX1

MX-CFX1 SPECIFICATIONS 2 – 1
MX-CFX1 Service Manual
[2] SPECIFICATIONS
1. Basic specifications
Name Inserter
Type Floor standing
Transport reference Center reference
Productivity Single-sided: 36 cpm, double-sided: 25 cpm
(when A4 size 8.5x11 paper is fed continuously)
Loading capacity 100 sheets max. (standard paper: 80g/m2)
Paper size/weight Refer to Table 1 ("Paper size/weight")
Offline function
Mode Stapling, saddle stitch, punching
Paper size/weight As for the paper size/weight in each mode, rules for each mode shown in "Exit paper size/weight (finisher)" should be
observed.
Reliability MCBJ: Conforms to the main unit
MCBF: Conforms to the main unit
Life Conforms to the main unit
Power supply Supplied from the finisher
External dimensions (WxDxHmm) 455x595x1050mm, 17 59/64x23 27/64x41 21/64 inch
Product dimensions (WxDmm) 565x595mm, 22 1/4x23 27/64 inch
Weight Approx. 23kg, 50.7lbs
Table 1:Paper size/weight
Capacity
of paper
that can
be exited
Offset
Capacity
of paper
that can
be
stapled
Saddle
stitch
Punching,
2-holes
Punching,
3-holes
Punching,
4-holes
Punching,
4-holes,
wide
Inserter
paper
feed
Paper size
A3W Yes No No No No No No No Yes
A3 Yes Ye s 30 Ye s Yes Yes Yes Yes Yes
B4 Yes Ye s 30 Ye s Yes No No Yes Ye s
A4 Yes Yes 50 No Yes Yes Yes Yes Yes
A4R Yes Yes 30 Yes Yes No No Yes Yes
B5 Yes Yes 50 No Yes No No Yes Yes
B5R Yes No No No Yes No No Yes Yes
A5R Yes No No No No No No No Yes
12x18 Yes No No No No No No No Yes
11x17 Yes Yes 30 Yes Yes Yes Yes Yes Yes
8.5x14 Yes Yes 30 Yes Yes Yes*3 No Yes Yes
8.5x13 Yes Yes 30 No Yes Yes*3 No Yes Yes
8.5x11 Yes Yes 50 No Yes Yes Yes Yes Yes
8.5x11R Yes Yes 30 Yes Yes Yes*3 No Yes Yes
7.25x10.5R Yes No No No Yes No No Yes Yes
5.5x8.5R Yes No No No No No No No Yes
8K Yes Yes 30 Yes Yes No No No Yes
16K Yes Yes 50 No Yes No No No Yes
16KR Yes No No No Yes No No No Yes
Postcard YesNoNoNoNoNoNoNoNo
Envelope YesNoNoNoNoNoNoNoNo
Special Yes No No No No No No No No
Type and
weight of
paper
that can
be fed
Thin paper 55-59g/m2
15-16- lbs bond Yes Ye s Yes Ye s Yes Yes Yes Yes Yes
Normal paper 60-105g/m2
16-28 lbs bond Ye s Yes Yes Yes Yes Yes Yes Yes Ye s
cardboard
1(including
gloss paper)
106-209g/m2
28+-56-
lbsbond
Yes Ye s
*1 *2
Yes Yes Yes Yes Yes
cardboard 2 210-256g/m2
56-68 lbs bond Ye s Yes *1 *2 Yes Ye s Yes Ye s Yes
Envelope 75-90g/m2
20-24 lbs bond Ye s No No No No No No No No
OHP Yes No No No No No No No Yes
Label paper Yes No No No No No No No No
Tab paper Yes No No*4 No Yes*5 Yes*5 Yes*5 Yes*5 Yes
*1) Stapling of 256g/m2paper 2 sheets + 80g/m2paper 48 sheets is enabled (cardboard is included).
*2) Saddle stitch of 256g/m2paper 1 sheet + 80g/m2paper 14 sheets is enabled (cardboard is included).
*3) Punching 3-holes is automatically changed to 2-holes.
*4) While paper is fed from the inserter, stapling is enabled.
*5) While paper is fed from the inserter, punch operation is enabled.

MX-CFX1 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 – 1
MX-CFX1 Service Manual
[4] EXTERNAL VIEWS AND
INTERNAL STRUCTURES
1. External components
2. Sensors and switches
1
234
5
6
No. Description Function
1 Paper feed tray Place blank or printed sheets to be inserted in this
tray.
2 Paper guide Adjust this guide according to the paper size.
3 Top cover Open this cover to clear a paper jam.
4 Operator panel Used to staple and punch during off-line. (The
same operation can be made with the operation
panel of the main unit.)
5 Paper guiding
section (Lever)
Unlock the paper guiding section to clear a paper
jam.
6 Front cover Open this cover to remove jammed paper from
the finisher or saddle finisher.
No. Symbol Description Type Function and operation Output Product name
(Model) Manufacturer
1 JCK_S W JAM cover open/
close switch
Microswit
ch
Detects that the JAM cover is
opened or closed.
When the JAM cover is
opened, TP37 turns HIGH.
DE2L-FAAA HIROSE
CHERRY
PRECISION
4
3
6
9
10
1
7
8
5
2

MX-CFX1 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 – 2
3. Motors, solenoid, and clutch
2 H_SEN Reverse sensor Reflective
sensor
Detects that a sheet to be
inserted is transported to the
reverse sensor.
When a sheet is detected, TP1
turns HIGH.
SENSOR
(SNS - SPI-337-01)
SANYO
3 HI_SEN Paper exit sensor Photointe
rrupter
Detects that a sheet to be
inserted is transported to the
paper exit sensor.
When a sheet is detected, TP7
turns LOW.
TLP1241 (C5) TOSHIBA
4 HYK_SEN Reverse unit open/
close sensor
Photointe
rrupter
Detects that the reverse unit is
opened or closed.
When the reverse unit is
opened, TP9 turns LOW.
TLP1241 (C5) TOSHIBA
5 S_SEN Set sensor Photointe
rrupter
Detects that the inserter is
joined to the main unit.
When the inserter is joined to
the main unit, TP16 turns
HIGH.
TLP1241 (C5) TOSHIBA
6 EMP_SEN Empty sensor Photointe
rrupter
Detects presence/absence of a
sheet to be inserted in the
paper feed tray.
When a sheet is detected, TP4
turns HIGH.
TLP1241 (C5) TOSHIBA
7 REG_SEN Registration sensor Photointe
rrupter
Detects that a sheet to be
inserted is transported to the
registration sensor.
When a sheet is detected, TP5
turns LOW.
TLP1241 (C5) TOSHIBA
8TIM_SEN Timing sensor Photointe
rrupter
Detects that a sheet to be
inserted is transported to the
timing sensor.
When a sheet is detected, TP6
turns LOW.
TLP1241(C5) TOSHIBA
9 T_VR Sheet width
detection
potentiometer
Potentiom
eter
Detects the width of a sheet to
be inserted in the tray.
The voltage of TP12 varies
between 0 V and 5 V
depending on the sheet width.
RDC505003A ALPS
10 T_SEN Tray sensor Photointe
rrupter
Detects the length of a sheet to
be inserted in the tray
When a sheet is detected,
TP13 turns LOW.
GP1A73A SHARP
1
7
5
2
3
4
6
No. Symbol Description Function Product name (Model) Manufacturer
1 K_MOT Paper feed motor Feeds a sheet to be inserted from the tray. 23KM-K112-P5V MINEBEA
2 H_MOT Reverse motor Reverses and ejects a sheet to be inserted. 17PM-J507-P2VS MINEBEA
3 Y_MOT Horizontal transport motor Transports a sheet to be inserted on the horizontal transport
path.
17PM-J507-P3VS MINEBEA
4 F_SOL Flapper solenoid Switches over the flapper in the reversing operation. TDS-10SL-134 TDS
5 R_CL Registration clutch Holds the registration rollers to maintain registration. BJ-2.6-184 SHINKO
6 PBA-PANEL Operation panel PWB -
7 PBA-CONT Main control PWB -

MX-CFX1 OPERATIONAL DESCRIPTION 5 – 1
MX-CFX1 Service Manual
[5] OPERATIONAL DESCRIPTION
1. Structure
A. Cross-sectional view (Main body)
B. Drive system
[List of actuators]
2. Function outline
A. Operation mode
1) Normal (online mode)
• Through (horizontal transport)
• Straight mode (normal paper feeding from inserter)
• Reverse mode (reverse paper feeding from inserter)
2) Offline mode
• Punching mode (inserter operation = normal paper feeding)
• Stapling mode (inserter operation = normal paper feeding)
B. Delivery speed
1) Delivery speed
• Straight mode: 627 mm/sec
• Saddle mode (reverse): 276 mm/sec
3. Operational description
A. Through-mode operation of inserter (Online)
1) The inserter receives an operation command sent by the main
unit.
2) The transport motor rotates at a speed specified by the main
unit.
Horizontal transport rollers 1 (inlet rollers) and horizontal trans-
port rollers 2 (paper exit rollers) rotate.
3) A sheet exits from the main unit
4) The paper exit sensor detects the leading edge of the sheet.
5) The paper exit sensor detects the trailing edge of the sheet.
6) The transport motor stops.
Horizontal transport rollers 1 and horizontal transport rollers 2
stop.
Actuator Components to be driven
Description Type
Paper feed
motor
Pulse motor Pickup roller, feed rollers, separation
rollers, registration rollers, vertical
transport rollers
Transport motor Pulse motor Inlet rollers (horizontal transport rollers
1), paper exit rollers (horizontal
transport rollers 2)
Reverse motor Pulse motor Reverse rollers
Reverse flapper
solenoid
Solenoid Switch-over flapper in reverse section
Registration
clutch
Electromagnetic
clutch
Registration roller lock clutch
Pickup roller Paper feed roller
Separation roller
Registration roller
Vertical
transport roller
Horizontal
transport roller 1
Reverse roller
Empty sensor
Registration sensor
Timing sensor
Horizontal
transport roller 2
Reverse sensor
Paper exit sensor

MX-CFX1 OPERATIONAL DESCRIPTION 5 – 2
B. Normal paper feed operation of inserter
(online/offline)
[Paper loading]
1) A sheet is placed in the paper feed tray of the inserter.
2) The START LED lights up in blue on the operator panel of the
inserter.
3) An operation command is sent by the main unit, or a user
presses the START switch on the operator panel of the
inserter.
4) The registration clutch is turned ON to lock the registration roll-
ers.
[Separation]
5) The paper feed motor reverses to lower the pickup roller,
thereby taking in the sheet from the paper feed tray.
6) The registration sensor detects the leading edge of the sheet.
7) The sheet makes contact with the registration rollers to form a
loop, thereby stopping the paper feed motor.
8) The registration clutch is turned OFF.
9) The paper feed motor starts to rotate in the forward direction.
The registration rollers and vertical transport rollers rotate.
10) The timing sensor detects the leading edge of the sheet.
11) The leading edge of the sheet passes between the vertical
transport rollers.
12) When sheet transport needs to be suspended for adjusting the
space between sheets, the paper feed motor stops to stop the
sheet.
[Transport]
13) When a predetermined waiting time period has passed, The
paper feed motor restarts.
(If the transport motor has stopped, it is started.)
14) The paper exit sensor is turned ON, and detects the leading
edge of the sheet.
15) The timing sensor is turned OFF, and the trailing edge of the
sheet is detected.
16) When the trailing edge of the sheet leaves the vertical trans-
port rollers, the paper feed motor stops.
(When there is a next sheet to be inserted, the paper feed
motor reverses to take it in.
[Paper exit]
17) The paper exit sensor is turned OFF, and the trailing edge of
the sheet is detected.
18) When there is no next sheet to be inserted, the transport motor
stops.
NOTE: While the transport motor (horizontal transport rollers 1 and
horizontal transport rollers 2) rotates at a speed specified
by the main unit in the online mode, it rotates at either of
the speeds shown below in the offline mode.
* Transport speed in offline mode
Small-sized sheet (of which length detected in the tray is 216 mm
or less): 627 mm/sec
Large-sized sheet (of which length detected in the tray is more
than 276 mm): 800 mm/sec

MX-CFX1 OPERATIONAL DESCRIPTION 5 – 3
C. Reverse paper feeding operation of inserter
[Paper loading]
1) A sheet is placed in the paper feed tray of the inserter.
2) The START LED lights up in blue on the operator panel of the
inserter.
3) The inserter reserves an operation command sent by the main
unit.
4) The registration clutch is turned ON to lock the registration roll-
ers.
[Separation]
5) The paper feed motor reverses to lower the pickup roller,
thereby taking in the sheet from the paper feed tray
6) The registration sensor detects the leading edge of the sheet.
7) The sheet makes contact with the registration rollers to form a
loop, thereby stopping the paper feed motor.
8) The registration clutch is turned OFF.
[Leading-edge registration]
9) The paper feed motor starts to rotate in the forward direction.
The registration rollers and vertical transport rollers rotate. If
the sheet is the first sheet, the flapper solenoid in the reverse
section is turned ON at this point of time.
10) The timing sensor detects the leading edge of the sheet.
11) The leading edge of the sheet passes between the vertical
transport rollers
12) When sheet transport needs to be suspended for adjusting the
space between sheets, the paper feed motor stops to stop the
sheet.
[Entering reverse section]
13) When a predetermined waiting time period has passed, the
flapper solenoid is turned ON, the paper feed motor restarts,
and the reverse motor starts to rotate in the forward direction.
14) The reverse sensor is turned ON, and detects the leading
edge of the sheet.
15) When the trailing edge of the sheet leaves the timing sensor,
the paper feed motor starts to slow down to stop.
(After the paper feed motor has completely stopped, if there is
a next sheet to be inserted, the paper feed motor starts to
reverse to take it in.)

MX-CFX1 OPERATIONAL DESCRIPTION 5 – 4
16) The reverse sensor is turned OFF. The trailing edge of the
sheet is detected, and the flapper solenoid in the reverse sec-
tion is turned OFF. When the sheet travels a predetermined
distance, the reverse motor stops.
[Exiting from reverse section]
17) When the reverse motor has completely stopped, the reverse
motor starts to reverse, and the transport motor starts.
18) The reverse sensor is turned ON, and detects the leading
edge of the sheet.
19) The paper exit sensor is turned ON, and detects the leading
edge of the sheet.
20) The reverse sensor is turned OFF. When the sheet travels a
predetermined distance after its trailing edge is detected, the
reverse motor stops.
(If the next sheet waits at the leading-edge registration posi-
tion, the flapper solenoid in the reverse section is turned ON,
the paper feed motor starts to rotate in the forward direction,
and the reverse motor starts to rotate in the forward direction.)
[Paper exit]
21) The paper exit sensor is turned OFF, and the trailing edge of
the sheet is detected.
22) If there is no next sheet to be inserted, the transport motor
stops.
4. Offline mode setting
A. How to set punching mode
The figure below shows the operator panel.
Setting procedure:
1) Place a sheet in the tray.
2) Press the PUNCH switch on the operator panel.
3) The PUNCH LED lights up to indicate that setting has been
completed.
4) Press the START switch to start operation.
Canceling procedure:
5) Press the PUNCH switch on the operator panel.
6) The PUNCH LED goes out to indicate that setting has been
canceled.
NOTE: If you cannot make or cancel setting by following the
respective procedures above, refer to "5. LED indication on
operation panel" shown later. When no LEDs are lit, check
the setting made by the main unit and the inserter status.
B. How to set stapling mode
Punch switch
Punch LED
Start switch
Start LED
Start switch
Staple mode switch
Start switch
Staple mode LED 4
Staple mode LED 3
Staple mode LED 2
Staple mode LED 1

MX-CFX1 OPERATIONAL DESCRIPTION 5 – 5
Setting procedure:
1) Place a sheet in the tray.
2) Press the STAPLE MODE switch on the operator panel.
3) Each time you press the switch, the STAPLE MODE LEDs
light up by turns in the following order: 1, 2, 3, 4 All LEDs OFF
1 ... (When the saddle mode is cannot be used, the order is: 1
2, 3, All LEDs OFF 1 ...)
4) When the desired LED lights up, press the START switch to
start operation.
(Refer to the correspondence between the stapling modes and
LEDs shown later.)
Canceling procedure:
5) Press the STAPLE MODE switch on the operator panel.
6) All the STAPLE MODE LEDs go out to indicate that setting has
been canceled.
NOTE: If you cannot make or cancel setting by following the
respective procedures above, refer to "5. LED indication on
operation panel" shown later. When no LEDs are lit, check
the setting made by the main unit and the inserter status.
NOTE: The punching mode and saddle mode cannot be used at
the same time.
The correspondence between the punching/stapling mode settings and LEDs is shown below.
*●: means "Lit."
Punch
LED
Staple mode LEDs Stapling mode
LED1 LED2 LED3 LED4
❍●❍❍❍1-point stapling at back
❍❍●❍❍2-point stapling
❍❍❍●❍1-point stapling at front
❍❍❍❍●Saddle stapling (saddle stitching)
●❍❍❍❍Punching
●●❍❍❍Punching + 1-point stapling at back
●❍●❍❍Punching + 2-point stapling
●❍❍●❍Punching + 1-point stapling at front

MX-CFX1 OPERATIONAL DESCRIPTION 5 – 6
5. LED indication on operator panel
NOTE: For LED status, each blank means "not lit."
Status Cause Explanation START LED MODE LED
Red Green
Empty tray The selected MODE LED is lit.
Inserter problem
Finisher problem
Paper jam in inserter Lit The LED of the selected mode is lit.
Paper jam in finisher Lit The LED of the selected mode is lit.
Inserter alarm The LED of the selected mode is lit.
Finisher alarm The LED of the selected mode is lit.
Open inserter cover The LED of the selected mode is lit.
Open finisher cover The LED of the selected mode is lit.
Offline operation disabled
Inserter tray specified stapling
mode non-usable
Punching non-usable
The LED of the selected mode is lit.
Operation mode Stapling disabled
Punching disabled
The LED of the selected mode is blinking.
Full tray (considered as a kind of
finisher alarms)
The LED of the selected mode is lit.
Other
Paper-loaded tray
(Operable)
Lit The LED of the selected mode is lit.
Paper-loaded
tray(Non-operable)
Inserter problem Lit
Finisher problem Lit The LED of the selected mode is lit.
Paper jam in inserter Lit
Paper jam in finisher Lit The LED of the selected mode is lit.
Inserter alarm Blinking The LED of the selected mode is lit.
Finisher alarm Blinking The LED of the selected mode is blinking.
Paper-loaded tray
(Non-operable)
Open inserter cover The LED of the selected mode is lit.
Open finisher cover The LED of the selected mode is lit.
Incompatible paper size A non-usable paper size "A4
lateral," etc. is added when
the saddle mode is selected:
Extra size
Blinking The LED of the selected mode is lit.
Offline operation disabled
Inserter tray specified stapling
mode non-usable
Punching non-usable
The selected mode is non-
usable.
The LED of the selected mode is blinking.
Operation mode Stapling disabled
Punching disabled
The selected mode is
disabled.
The LED of the selected mode is blinking.
Full tray (considered as a kind of
finisher alarms)
The tray corresponding to the
selected mode is full.
Blinking The LED of the selected mode is blinking.
Over loaded Blinking The LED of the selected mode is blinking.
Paper loaded in the finisher
intermediate process tray
Blinking The LED of the selected mode is lit.
Other Main unit status "operation
disabled," finisher status "non-
operable," etc.
The LED of the selected mode is lit.
Waiting for start of
offline operation
After a user presses the
START switch
Blinking The LED of the selected mode is lit.
In offline operation Blinking The LED of the selected mode is lit.

MX-CFX1 OPERATIONAL DESCRIPTION 5 – 7
6. Paper jam/error detection
A. List of Paper jams
B. Error detection
(1) EEPROM errors
Explanation:
1) Timeout error
The EEPROM is being programmed even after a predeter-
mined time period (150 msec) has passed.
2) Writing error
The written data does not match the read data even when writ-
ing and reading are retried.
3) Reading error
Checking pieces of data read from three sources results in
mismatch even when checking is retried.
(2) Reverse sensor adjustment error
Explanation:
1) When the DA output exceeds the upper limit
Even when the DA output is increased, the AD input value
does not fall within the appropriated range.
2) When the DA output is less than the lower limit
Even when the DA output is decreased, the AD input value
does not fall within the appropriated range.
C. Alarm detection
Explanation:
An alarm is issued because the size of a sheet in the tray cannot be
correctly detected when both the sub tray pullout detection sensor
and the sub tray retraction detection sensor are turned OFF.
Indication:
Shown by a LED on the operator panel of the inserter or of the
main unit as an inserter alarm.
Description Detection timing Explanation
Not arrived at registration
sensor
At a time of separating a sheet A paper jam is detected if the registration sensor is not turned ON, which means absence of a
sheet, even when the paper feed motor has been driven for a fixed distance after the pickup
roller starts to lower.
Not arrived at timing sensor At a time of leading-edge registration A paper jam is detected if the timing sensor is not turned ON, which means absence of a
sheet, even when the registration rollers (paper feed motor) have been driven for a fixed
distance after they are started.
Not arrived at paper exit
sensor
At a time of paper exit in through mode A paper jam is detected if the paper exit sensor is not turned ON by the leading edge of a
sheet, which means absence of a sheet, even when the transport motor has been driven for a
fixed distance after the main unit sends a paper exit command.
At a time of paper exit in normal paper
feed mode
A paper jam is detected if the paper exit sensor is not turned ON, which means absence of a
sheet, even when the leading edge of a sheet has traveled a fixed distance after it reaches the
paper exit rollers (horizontal transport rollers 2).
At a time of paper exit in reverse paper
feed mode
A paper jam is detected if the paper exit sensor is not turned ON, which means absence of a
sheet, even when a sheet has been transported a fixed distance by the transport motor after
the reverse sensor is turned ON, which means presence of a sheet.
Not arrived at reverse sensor At a time of entering reverse section A paper jam is detected if the reverse sensor is not turned ON, which means absence of a
sheet, even when the reverse motor has been driven for a fixed distance after leading-edge
registration.
At a time of exiting from reverse
section
A paper jam is detected if the reverse sensor is turned ON, which means absence of a sheet,
even when the reverse motor has been driven for a fixed distance while a sheet is exiting from
the reverse section.
Stay at registration sensor At a time of paper exit in normal paper
feed mode
A paper jam is detected if the registration sensor is not turned OFF, which means presence of
a sheet, even when the paper feed motor has been driven for a predetermined amount after a
sheet reaches the starting position of leading-edge registration.
At a time of entering reverse section in
reverse paper feed mode
Stay at timing sensor At a time of paper exit in normal paper
feed mode
A paper jam is detected if the timing sensor is not turned OFF, which means presence of a
sheet, even when the paper feed motor has been driven for a fixed distance after the
registration sensor is turned OFF, which means absence of a sheet.
At a time of entering reverse section in
reverse paper feed mode
Stay at paper exit sensor At a time of paper exit in through mode A paper jam is detected if the paper exit sensor is not turned OFF, which means presence of a
sheet, even when the transport motor has been driven for a predetermined amount after the
paper exit sensor is turned ON, which means presence of a sheet.
At a time of paper exit in normal paper
feed mode
A paper jam is detected if the paper exit sensor is not turned OFF, which means presence of a
sheet, even when the transport motor has been driven for a fixed distance after the trailing
edge of a sheet reaches the paper exit rollers (horizontal transport rollers 2).
At a time of paper exit in reverse paper
feed mode
Stay at reverse sensor At a time of entering reverse section A paper jam is detected if the reverse sensor is not turned OFF, which means presence of a
sheet, even when the reverse motor has been driven for a fixed distance after the timing
sensor is turned OFF, which means absence of a sheet.
At a time of exiting from reverse
section
A paper jam is detected if the reverse sensor is not turned OFF, which means presence of a
sheet, even when the reverse motor has been driven for a predetermined amount after the
reverse sensor is turned ON, which means presence of a sheet.

MX-CFX1 DISASSEMBLY AND ASSEMBLY 6 – 1
MX-CFX1 Service Manual
[6] DISASSEMBLY AND
ASSEMBLY
1. Paper feed separation unit
A. Pickup roller & paper feed roller
1) Open the top cover.
2) Remove the cover A.
3) Turning the unit A, remove the roller guide B.
4) Remove the pickup roller and paper feed roller.
A: Pickup roller
B: Paper feed roller
B. Torque limiter & separation roller
1) Open the top cover.
2) Remove the cover A.
3) Turn the unit A to remove.
4) Remove the torque limiter and the separation roller.
A: Horizontal pass roller 2
B: Timing roller
A
A
B
A
B
A
A
A
B

MX-CFX1 DISASSEMBLY AND ASSEMBLY 6 – 2
2. Paper feed unit
A. Horizontal pass roller 1 and registration roller
Paragraph in Sub Section.
1) Open the top cover.
2) Open the mount cover.
3) Remove the front cover.
4) Remove the rear cover.
5) Remove the top cover.
A: Horizontal pass roller 1
B: Registration roller
B. Horizontal pass roller 2 and timing roller
1) Open the top cover.
2) Remove the front cover and rear cover.
3) Remove the operating unit.
B
A
1
1
2
3

MX-CFX1 DISASSEMBLY AND ASSEMBLY 6 – 3
4) Remove the cover A.
5) Remove the tray unit.
6) Remove the cover A.
A: Horizontal pass roller 2
B: Timing roller
C. Reverse roller and reverse sensor
1) Open the top cover.
2) Remove the front cover and rear cover.
3) Remove the guide A to remove the stay B.
4) Remove the reverse unit.
5) Remove the cover A.
A: Reverse sensor
B: Reverse roller
A
1
2 2
3
A
A
B
1
2
A
B
12
2
3
A

MX-CFX1 DISASSEMBLY AND ASSEMBLY 6 – 4
D. Paper guide
3. Drive unit
A. Belts
1) Open the top cover.
2) Remove the rear cover.
B. Gears
1) Open the top cover.
2) Remove the rear cover.
3) Remove the drive unit.
4. PWB
A. Operation panel PWB
1) Remove the front cover.
2) Remove the operating unit.
3) Remove the operation panel PWB.
B. Main control PWB
1) Remove the rear cover.
2) Remove the main control PWB.
5. Motor
A. Paper feed motor
1) Remove the rear cover.
2) Remove the drive unit.
3) Remove the paper feed motor.

MX-CFX1 DISASSEMBLY AND ASSEMBLY 6 – 5
B. Transport motor
1) Remove the rear cover.
2) Remove the transport motor.
C. Reverse motor
1) Remove the front cover and rear cover.
2) Remove the reverse unit.
3) Remove the cover A.
4) Remove the reverse motor.
6. Other parts
A. Sensors
B. Tray sensor
1) Open the top cover.
2) Remove the front cover and rear cover.
3) Remove the operating unit.
4) Remove the tray unit.
5) Disassemble the tray.
6) Remove the tray sensor.
A
1
2

MX-CFX1 DISASSEMBLY AND ASSEMBLY 6 – 6
C. Registration sensor and empty sensor
1) Open the top cover.
2) Remove the front cover and rear cover.
3) Detach the top cover.
4) Remove the registration sensor and the empty sensor.
A: Empty sensor
B: Registration sensor
D. Set sensor
1) Open the rear cover.
2) Remove the set sensor
E. Reverse unit open/close sensor
1) Remove the front cover.
2) Remove the reverse unit open/close sensor.
F. Paper exit sensor
1) Remove the front cover and rear cover.
2) Remove the reverse unit.
3) Remove the cover. (See the step 3 of 5-C.)
4) Remove the paper exit sensor.
G. Flapper solenoid
1) Remove the rear cover.
2) Remove the flapper solenoid.
A
B

MX-CFX1 DISASSEMBLY AND ASSEMBLY 6 – 7
7. Note on assembly
A. Reverse flapper solenoid adjustment
1) Rotate the solenoid lever (LVR-FM-SOL) fully clockwise.
2) Adjust the position of the bracket (BKT-FM-SOL) of the sole-
noid so that the solenoid's arm is completely retracted (that
there is no clearance in the rubber spacer, the stopper E-ring,
and the main unit of the solenoid). When adjusted, fix the
bracket with screws.
LVR-FM-SOL
Stopper E-ring
Rubber spacer
Solenoid
main unit Screw
BKT-FM-SOL