SHARP SM-ARCF2 Service Manual
SERVICE MANUAL
CODE: 00ZARCF2//A1E
DIGITAL COPIER/PRINTER/
MULTIFUNCTIONAL SYSTEM OPTION
INSERTER
MODEL
CONTENTS
[1] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[3] EXTERNAL VIEWS AND INTERNAL STRUCTURES . . . . . . . . . . 3-1
[4] OPERATIONAL DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
[5] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
[6] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
AR-CF2
[7] TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
[8] ELECTRICAL SECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
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
SHARP CORPORATION
for after sales service only.
The contents are subject to change without notice.
[1] PRODUCT OUTLINE
This inserter is an optional unit for the AR-620 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 stapling process without being subject to the copying process (or without passing through the main unit).
[2] SPECIFICATIONS
1. Basic specifications
A. Performance
Type of Installation Floorstanding
Delivery speed Through mode
Productivity 50 cpm (when A4 or letter-sized insert sheets
Transport
reference
Loading capacity 100 sheets max. (80 g/m
Offline function Provided
Manual operation
section
Stapling Possible
Saddle stitching
(With folding)
Punching Possible
Paper jam
handling
(Horizontal
transportation):
Straight mode: 217mm min. 800mm/sec
Saddle mode
(Reverse):
are continuously transported/saddle mode not
applicable)
Center reference through (when horizontally
transported)
Maximum loading height: 12 mm (80g/m
Maximum loadable sheets: 30 (127g/m
Factor 0.6 or less applied to above limitations
for special papers
Equipped with keys and LEDs
Possible
Paper feed/
Transport unit
Horizontal
transport unit
B. Compatible paper types
Paper weight 60 – 256gm
should be less than 256µm)
Types Normal paper, special paper (OHP films, colored
paper, punched paper, tabbed paper)
Special papers OHP films: Saddle mode (reverse) not applicable
Punched paper: 2, 3, or 4 holes
2 holes (φ6.5): Hole pitch: 80mm
2 holes (φ8): Hole pitch: 70mm
3 holes (φ8): Hole pitch: 108mm+108mm
4 holes (φ6.5): Hole pitch:
4 holes (φ6.5): Hole pitch:
2
217mm min. 800mm/sec
216mm max. 1000mm/sec
216mm max. 1000mm/sec
217mm min. 800mm/sec
216mm max. 1000mm/sec
2
or less)
greater)
greater)
Paper feeding cover open/
close
Transportation guide open/
close
(Normal paper, whose thickness
80mm+80mm+80mm
21mm+70mm+21mm
2
or
2
or
Paper sizes Ledger (LD), Legal (LG), Letter (LT), Letter R
Size detection The 3 destinations below are user-definable
Paper sizes that
can be stapled
Paper sizes that
can be saddle
stitched
Paper sizes that
can be punched
(LTR), Foolscap, Executive R, Invoice R, 18K,
16K, 16K-R, Wide sheet
Width: 304.8mm max. (12 inches max.)
Length: 457.2mm max. (18 inches max.)
cm: A3, B4, A4, A4R, B5, B5R, A5R
(Foolscap is manually specified on the
operation panel of main unit)
inch: LD, LG, LT, LTR, Executive R, Invoice R
China: 8K, 16K, 16K-R
∗ Mixed loading is not possible. When offline, sta-
pling and punching are possible only for papers
that have the identical width (A3 and A4, B4 and
B5, LD and LT). Note that compatibility with the
finisher is not considered.
Compliant with the specifications both of the main
unit and the finisher.
Compliant with the specifications both of the main
unit and the saddle finisher.
Compliant with the specifications both of the main
unit and the punch unit.
C. Mechanical specifications
External
dimensions
Footprint (W) 320 x (D) 580 mm
Weight Product weight Approx. 23kg
Item enclosed Inserter: 1
Product
dimensions
Packaged
dimensions
Package weight Approx. 32kg
(W) 320 x (D) 580 x (H) 1060 mm
∗ Latch unit and tray unit
excluded.
(W) 1295 x (D) 680 x (H) 516 mm
∗ Latch unit and tray unit
excluded.
2. Electrical specifications
Input voltage Supplied from the main unit
DC+24V ± 10%
DC +5V ± 5%
Power consumption DC+24V: 58.3W max.
DC +5V: 1.1W max.
3. Environmental conditions
Operating
conditions (normal
operation)
Transport/storage
environment
Temperature 5 – 35°C
Humidity 20 – 85%RH (No condensing)
Temperature –20 – 50°C
Humidity 10 – 90%RH (No condensing)
4. Compliance
Safety standard UL: 60950 the 3rd edition
Electromagnetic
Compliance
C-UL: CAN/CSA-C22. 2 No.60950 the 3rd edition
CE: EN60950 ITS (German GS mark)
VCCI: Class B
FCC: Class B
CE: EN50081-1 EN55024
AR-CF2 PRODUCT OUTLINE 1 - 1
[3] EXTERNAL VIEWS AND INTERNAL STRUCTURES
1. External components
No. Description Function
234
1
5
6
1 Paper feed tray Place blank or printed sheets to be
2 Paper guide Adjust this guide according to the paper
3 Top cover Open this cover to clear a paper jam.
4 Operator panel Operate the staple and punch unit with this
5 Paper guiding
section
6 Front cover Open this cover to remove jammed paper
inserted in this tray.
size.
panel (or with the operator panel of the
main unit).
Unlock the paper guiding section to clear a
paper jam.
from the finisher or saddle finisher.
2. Sensors and switches
13
10
12
11
1
8
7
3
4
5
9
6
2
No. Symbol Description Type Function and operation Output
1 JCK_S W JAM cover open/
close switch
2 H_SEN Reverse sensor Reflective sensor Detects that a sheet to be
Microswitch Detects that the JAM cover is
opened or closed.
inserted is transported to the
reverse sensor.
AR-CF2 EXTERNAL VIEWS AND INTERNAL STRUCTURES 3 - 1
When the JAM cover is opened,
TP37 turns HIGH.
When a sheet is detected, TP1
turns HIGH.
Product name
(Model)
DE2L-FAAA HIROSE
SENSOR
(SNS - SPI-337-01)
Manufacturer
CHERRY
PRECISION
SANYO
No. Symbol Description Type Function and operation Output
3 HI_SEN Paper exit sensor Photointerrupter Detects that a sheet to be
4 HYK_SEN Reverse unit open/
close sensor
5 KC_SEN Stand cover open/
close sensor
6 S_SEN Set sensor Photointerrupter Detects that the inserter is joined
7 EMP_SEN Empty sensor Photointerrupter Detects presence/absence of a
8 REG_SEN Registration sensor Photointerrupter Detects that a sheet to be
9 TIM_SEN Timing sensor Photointerrupter Detects that a sheet to be
10 T_VR Sheet width detection
potentiometer
11 T_SEN Tray sensor Photointerrupter Detects the length of a sheet to
12 TH_SEN Sub tray pullout
detection sensor
13 TS_SEN Sub tray retraction
detection sensor
Photointerrupter Detects that the reverse unit is
Photointerrupter Detects that the stand cover is
Potentiometer Detects the width of a sheet to
Photointerrupter Detects the pullout status of the
Photointerrupter Detects the retracted status of
inserted is transported to the
paper exit sensor.
opened or closed.
opened or closed.
to the main unit.
sheet to be inserted in the paper
feed tray.
inserted is transported to the
registration sensor.
inserted is transported to the
timing sensor.
be inserted in the tray.
be inserted in the tray
sub tray.
the sub tray.
When a sheet is detected, TP7
turns LOW.
When the reverse unit is
opened, TP9 turns LOW.
When the stand cover is
opened, TP10 turns LOW.
When the inserter is joined to
the main unit, TP16 turns HIGH.
When a sheet is detected, TP4
turns HIGH.
When a sheet is detected, TP5
turns LOW.
hen a sheet is detected, TP6
turns LOW.
The voltage of TP12 varies
between 0 V and 5 V depending
on the sheet width.
When a sheet is detected, TP13
turns LOW.
When the pullout status is
detected, TP14 turns LOW.
When the retracted status is
detected, TP15 turns LOW.
3. Motors, solenoid, and clutch
Product name
(Model)
TLP1241 (C5) TOSHIBA
TLP1241 (C5) TOSHIBA
TLP1241 (C5) TOSHIBA
TLP1241 (C5) TOSHIBA
TLP1241 (C5) TOSHIBA
TLP1241 (C5) TOSHIBA
TLP1241(C5) TOSHIBA
RDC505003A ALPS
GP1A73A SHARP
GP1A73A SHARP
GP1A73A SHARP
Manufacturer
3
5
1
6
2
7
4
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 –
AR-CF2 EXTERNAL VIEWS AND INTERNAL STRUCTURES 3 - 2
[4] OPERATIONAL DESCRIPTION
1. Structure
A. Cross-sectional view (Main body)
Pickup roller
Empty sensor
Registration sensor
Timing sensor
Paper exit sensor
Horizontal
transport roller 2
Reverse sensor
B. Drive system
[List of actuators]
Actuator
Description Type
Paper feed
motor
Transport motor Pulse motor Inlet rollers (horizontal
Reverse motor Pulse motor Reverse rollers
Reverse flapper
solenoid
Registration
clutch
Pulse motor Pickup roller, feed rollers,
Solenoid Switch-over flapper in reverse
Electromagnetic
clutch
Components to be driven
separation rollers, registration
rollers, vertical transport rollers
transport rollers 1), paper exit
rollers (horizontal transport
rollers 2)
section
Registration roller lock clutch
Paper feed roller
Separation roller
Registration roller
Vertical
transport roller
Horizontal
transport roller 1
Reverse roller
3. Operational description
A. Through-mode operation of inserter (Online)
Step 01: The inserter receives an operation command sent by the
main unit.
Step 02: The transport motor rotates at a speed specified by the main
unit.
Horizontal transport rollers 1 (inlet rollers) and horizontal
transport rollers 2 (paper exit rollers) rotate.
Step 03: A sheet exits from the main unit.
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: 217 mm or more; 800 mm/sec
216 mm or less; 1000 mm/sec
• Saddle mode (reverse): 420 mm/sec
Step 04: The paper exit sensor detects the leading edge of the sheet.
Step 05: The paper exit sensor detects the trailing edge the sheet.
Step 06: The transport motor stops.
Horizontal transport rollers 1 and horizontal transport rollers
2 stop.
AR-CF2 OPERATIONAL DESCRIPTION 4 - 1
B. Normal paper feed operation of inserter (online/
offline)
[Paper loading]
Step 01: A sheet is placed in the paper feed tray of the inserter.
Step 02: The START LED lights up in blue on the operator panel of
the inserter.
Step 03: An operation command is sent by the main unit, or a user
presses the START switch on the operator panel of the
inserter.
Step 04: The registration clutch is turned ON to lock the registration
rollers.
[Separation]
Step 09: The paper feed motor starts to rotate in the forward direction.
The registration rollers and vertical transport rollers rotate.
Step 10: The timing sensor detects the leading edge of the sheet.
Step 11: The leading edge of the sheet passes between the vertical
transport rollers.
Step 12: When sheet transport needs to be suspended for adjusting
the space between sheets, the paper feed motor stops to
stop the sheet.
[Transport]
Step 13: When a predetermined waiting time period has passed, The
paper feed motor restarts.
(If the transport motor has stopped, it is started.)
Step 14: The paper exit sensor is turned ON, and detects the leading
edge of the sheet.
Step 15: The timing sensor is turned OFF, and the trailing edge of the
sheet is detected.
Step 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]
Step 05: The paper feed motor reverses to lower the pickup roller,
thereby taking in the sheet from the paper feed tray.
Step 06: The registration sensor detects the leading edge of the
sheet.
Step 07: The sheet makes contact with the registration rollers to form
a loop, thereby stopping the paper feed motor.
Step 08: The registration clutch is turned OFF.
[Leading-edge registration]
AR-CF2 OPERATIONAL DESCRIPTION 4 - 2
Step 17: The paper exit sensor is turned OFF, and the trailing edge of
the sheet is detected.
Step 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): 1000 mm/sec
Large-sized sheet (of which length detected in the tray is more than
216 mm): 800 mm/sec
C. Reverse paper feeding operation of inserter
(online)
[Paper loading]
Step 01: A sheet is placed in the paper feed tray of the inserter.
Step 02: The START LED lights up in blue on the operator panel of
the inserter.
Step 03: The inserter reserves an operation command sent by the
main unit.
Step 04: The registration clutch is turned ON to lock the registration
rollers.
[Separation]
Step 09: 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.
Step 10: The timing sensor detects the leading edge of the sheet.
Step 11: The leading edge of the sheet passes between the vertical
transport rollers.
Step 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]
Step 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.
Step 14: The reverse sensor is turned ON, and detects the leading
edge of the sheet.
Step 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.)
Step 05: The paper feed motor reverses to lower the pickup roller,
thereby taking in the sheet from the paper feed tray.
Step 06: The registration sensor detects the leading edge of the
sheet.
Step 07: The sheet makes contact with the registration rollers to form
a loop, thereby stopping the paper feed motor.
Step 08: The registration clutch is turned OFF.
[Leading-edge registration]
AR-CF2 OPERATIONAL DESCRIPTION 4 - 3
Step 16: The reverse sensor is turned OFF. The trailing edge of the
sheet is detected, and the flapper solenoid in the reverse
section is turned OFF. When the sheet travels a predeter-
mined distance, the reverse motor stops.
[Exiting from reverse section]
4. Offline mode setting
A. How to set punching mode
The figure below shows the operator panel.
Punch LED
Start LED
Step 17: When the reverse motor has completely stopped, the reverse
motor starts to reverse, and the transport motor starts.
Step 18: The reverse sensor is turned ON, and detects the leading
edge of the sheet.
Step 19: The paper exit sensor is turned ON, and detects the leading
edge of the sheet.
Step 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 position, 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]
Punch switch
Setting procedure:
Step 01: Place a sheet in the tray.
Step 02: Press the PUNCH switch on the operator panel.
Step 03: The PUNCH LED lights up to indicate that setting has been
completed.
Step 04: Press the START switch to start operation.
Canceling procedure:
Step 01: Press the PUNCH switch on the operator panel.
Step 02: 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.
Start switch
B. How to set stapling mode
Staple mode LED 2
Staple mode LED 1
Staple mode LED 3
Staple mode LED 4
Setting procedure:
Step 01: Place a sheet in the tray.
Step 02: Press the STAPLE MODE switch on the operator panel.
Step 03: 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 → ...)
Step 04: When the desired LED lights up, press the START switch to
start operation.
Staple mode switch
Start switch
Start switch
Step 21: The paper exit sensor is turned OFF, and the trailing edge of
the sheet is detected.
Step 22: If there is no next sheet to be inserted, the transport motor
stops.
AR-CF2 OPERATIONAL DESCRIPTION 4 - 4
(Refer to the correspondence between the stapling modes and LEDs
shown later.)
Canceling procedure:
Step 01: Press the STAPLE MODE switch on the operator panel.
Step 02: All the STAPLE MODE LEDs go out to indicate that setting
has been canceled.
Note 1: If you cannot make or cancel setting by following the respec-
tive procedures above, refer to "5. LED indication on opera-
tion panel" shown later. When no LEDs are lit, check the
setting made by the main unit and the inserter status.
Note 2: 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.
Punch
LED
❍●❍❍❍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
∗ ●: means "Lit."
Staple mode LEDs
LED1 LED2 LED3 LED4
Stapling mode
5. LED indication on operator panel
Status Cause Explanation
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
Operation mode Stapling
disabled
Punching disabled
Full tray (considered as a kind of
finisher alarms)
Other
Paper-loaded tray
(Operable)
Paper-loaded
tray(Non-operable)
Paper-loaded tray
(Non-operable)
Waiting for start of
offline operation
In offline operation Blinking The LED of the selected mode is lit.
Note: For LED status, each blank means "not lit."
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 lit.
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
Offline operation disabled
Inserter tray specified stapling
mode non-usable
Punching non-usable
Operation mode Stapling
disabled
Punching disabled
Full tray (considered as a kind of
finisher alarms)
Other Main unit status "operation
A non-usable paper size "A4
lateral," etc. is added when the
saddle mode is selected: Extra size
The selected mode is nonusable.
The selected mode is disabled. The LED of the selected mode is
The tray corresponding to the
selected mode is full.
disabled," finisher status "nonoperable," etc.
After a user presses the START
switch
START LED
Red Green
Blinking
Blinking
MODE LED
The LED of the selected mode is lit.
The LED of the selected mode is
blinking.
The LED of the selected mode is lit.
The LED of the selected mode is lit.
Lit
The LED of the selected mode is lit.
The LED of the selected mode is
blinking.
blinking.
The LED of the selected mode is lit.
The LED of the selected mode is lit.
The LED of the selected mode is lit.
AR-CF2 OPERATIONAL DESCRIPTION 4 - 5
6. Paper jam/error detection
A. List of Paper jams
Description Detection timing Explanation
Not arrived at registration
sensor
Not arrived at timing
sensor
Not arrived at paper exit
sensor
Not arrived at reverse
sensor
Stay at registration
sensor
Stay at timing sensor At a time of paper exit in normal
Stay at paper exit sensor At a time of paper exit in through
Stay at reverse sensor At a time of entering reverse
At a time of separating a sheet A paper jam is detected if the registration sensor is not turned ON, which means
At a time of leading-edge
registration
At a time of paper exit in through
mode
At a time of paper exit in normal
paper feed mode
At a time of paper exit in reverse
paper feed mode
At a time of entering reverse
section
At a time of exiting from reverse
section
At a time of paper exit in normal
paper feed mode
At a time of entering reverse
section in reverse paper feed mode
paper feed mode
At a time of entering reverse
section in reverse paper feed mode
mode
At a time of paper exit in normal
paper feed mode
At a time of paper exit in reverse
paper feed mode
section
At a time of exiting from reverse
section
absence of a sheet, even when the paper feed motor has been driven for a fixed
distance after the pickup roller starts to lower.
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.
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.
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).
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.
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.
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.
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.
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.
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.
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).
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.
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.
B. Error detection
(1) EEPROM errors
Explanation:
1) Timeout error
The EEPROM is being programmed even after a predetermined
time period (150 msec) has passed.
2) Writing error
The written data does not match the read data even when writing
and reading are retried.
3) Reading error
Checking pieces of data read from three sources results in mis-
match even when checking is retried.
AR-CF2 OPERATIONAL DESCRIPTION 4 - 6
(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.
[5] DISASSEMBLY AND ASSEMBLY
1. Paper Feed Separation Unit
A. Pickup Roller & Paper Feed Roller
1) Open the top cover
2) Remove the maintenance cover.
B. Torque Limiter & Separation Roller
1) Open the top cover.
2) Remove the maintenance cover.
3) Turn the separation roller unit to remove.
3) Turning the paper feed unit, remove the paper feed roller guide.
4) Remove the pickup roller and paper feed roller.
A: Pickup roller
B: Paper feed roller
4) Remove the torque limiter and the separation roller.
A: Torque limiter
B: Separation roller
A
B
A
B
AR-CF2 DISASSEMBLY AND ASSEMBLY 5 - 1
2. Paper Feed Unit
A. Horizontal Pass Roller 1 and Registration Roller
1) Open the top cover.
2) Open the mount cover.
3) Remove the front cover.
A: Horizontal pass roller 1
B: Registration roller
B
A
B. Horizontal Pass Roller 2 and Timing Roller
1) Open the top cover.
2) Remove the front cover and rear cover.
3) Disconnect the connector to remove the operating unit.
4) Remove the rear cover.
5) Remove the opening and closing cover supports and plastic Erings to remove the top cover.
4) Disconnect the connector, tray support and tray spring guide spindle to remove the tray unit.
AR-CF2 DISASSEMBLY AND ASSEMBLY 5 - 2
5) Remove the finisher latch cover.
A: Horizontal pass roller 2
B: Timing roller
B
A
5) Remove the cover bracket.
D. Paper Guide
C. Reverse Roller
1) Open the top cover.
2) Remove the front cover and rear cover.
3) Remove the finisher fixing bolt to remove the finisher positioning
stay unit.
4) Remove the reverse supports and plastic E-rings to remove the
reverse unit.
AR-CF2 DISASSEMBLY AND ASSEMBLY 5 - 3
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