SHARP ARFN3A1E Service Manual

AR-FN3

CODE: 00ZARFN3//A1E

3-TRAY FINISHER

MODEL AR-FN3

CONTENTS

[ 1 ] BASIC SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

[ 2 ] UNPACKING AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . 2-1

[ 3 ] EXTERNAL VIEW AND INTERNAL STRUCTURE . . . . . . . . . . 3-1

[ 4 ] OPERATIONAL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . 4-1

[ 5 ] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . 5-1

[ 6 ] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

[ 7 ] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

[ 8 ] TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

[ 9 ] CIRCUIT DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

[10] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

PARTS GUIDE

This document has been published to be used for after sales service only. The contents are subject to change without notice.

AR-FN3

[1] BASIC SPECIFICATIONS

1. Ty pe

Copier-fitted type (detachable)

2. Tray

1) Number of trays 3

2) Type Top (tray 1) Normal tray Middle (tray 2) Normal tray Bottom (tray 3) Lift tray

3) Number of

sheets loadable

3. Paper transport

Center reference

4. St orag e

Face-down

5. Disch ar ge size

Face-down Top A3 ∼ A6R/11 × 17 ∼ 8.5 × 5.5,

Normal tray 500 (80 g/m2) Lift tray 1500 (A4/11" × 8.5") 750

(A3/11" × 17") (80 g/m2)

special paper Middle A3 ∼ A5/11 × 17 ∼ 8.5 × 5.5 Bottom A3 ∼ B5/ 11 × 17 ∼ 8.5 × 11

9. Staple unit

Paper discharge tray Lift tray Storage Face-down Number of sheets

that can be stapled Paper size AB series A3, B4, A4, A4R, B5

Stapling reference 1 point (front)/ 1 point (far end)/ 2 points Needle feed system Cartridge (5000 needles) Detection No needle/no cartridge/stapler rotation Service life more than 100 K Manual mode None

50 sheets (80 g/m2) 25 sheets when the size is over A4/LT.

Inch series 11" × 17"/8.5" × 14"/

8.5" × 13"/8.5" × 11"/

8.5" × 11"R

10. P ower supply

Supplied from copier (DC 24V, DC 5V)

11. Power consumption

MAX 72W

12. Dimensions

590 (W) × 560 (D) × 998 (H)

13. Weight

About 50 kg

6. Paper weight

Face-down Top 50 ∼ 128 g/m2, 176g/m2, 200m

Middle 64 ∼ 128 g/m Bottom 64 ∼ 128 g/m

7. Paper full detection

Top Provided Middle Provided Bottom Provided

8. Lift tray

Off-set 30 mm

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AR-FN3

[2] UNPACKING AND

INSTALLATION

1. Unpac king

Refer to the sketch below for unpacking.

2. Installation

Unplug the copier’s power cord before carrying out the following procedure.

1. Attach the lock plate and mounting plate.

Remove the two screws from the upper left cabinet of the copiery and attach the lock plate to the upper left cabinet using two screws D.

Screws for upper left cabinet

Lock plate

Screws D

2. Attach the mounting plate.

Cut out the two mounting holes (the leftmost hole and the third hole from the left) at the lower part of the desk using a Phillips screwdriver, etc., and remove the burrs using a flat-blade screwdriver, etc. Then, attach the mounting plate to the lower part of the desk using two screws A.

Mounting hole

Screws A

Mounting plate

3. Attach the connecting plate to the finisher.

Insert the connecting plate into the lower part of the finisher and attach the plate at the position with mark B using screw B.

Screw B

Connecting plate

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AR-FN3

4. Insert the connecting plate of the finisher into the mounting plate of the desk.

Insert the connecting plate which has been attached to the finisher into the mounting plate of the desk. Move the finisher away from the copier after insertion to check that the connecting plate is locked. While the plate is locked, attach the securing plate using two black screws C.

Connecting plate

Securing plate

Mounting plate

Screws C

5. Connect the finisher connector.

Cut the connector cover on the copier with nippers. Fit the finisher relay harness to the copier and secure the connector by tightening the connector screw.

Connector cover

• If the clearance is wide at the upper part:

Turn knob A and knob B counterclockwise so that the clearances at the upper part and lower part are uniform.

Clearance

Knob BKnob A

<2> If the guide pin of the lock plate does not match the connecting

hole of the finisher: Turn the knobs at the lower part of the finisher to adjust the height.

• If the connecting hole is offset toward the rear side:

Turn knob B counterclockwise so that the connecting hole matches the guide pin. Then, push the finisher into the copier. If the clearance between the finisher and copier is not proper, adjust the clearances at the upper part and lower part using procedure <1>.

(Top view)

Screw

Connector

6. Check and adjust the height of the finisher.

• Put the finisher close to the copier and adjust and check so that

the guide pin of the lock plate enters smoothly the connecting hole of the finisher.

(Top view)

Guide pin

Lock plate

• Since adjustment has been made at shipping, this adjustment is

basically not needed. If the guide pin should not be inserted smoothly, adjust the height

using the following procedure.

<1> If the guide pin of the lock plate matches the connecting hole of

the finisher:

• If the clearance is narrow at the upper part:

Turn knob A and knob B clockwise so that the clearances at the upper part and lower part are uniform.

Guide pin

Knob A

Knob B

• If the connecting hole is offset toward the front side:

Turn knob A counterclockwise so that the connecting hole matches the guide pin. Then, push the finisher into the copier. If the clearance between the finisher and copier is not proper, adjust the clearances at the upper part and lower part using procedure <1>.

(Top view)

Guide pin

Knob A

Knob B

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AR-FN3

7. Attach the exit tray and tray 3.

Insert the three pawls at the rear side of tray 3 into the holes of the tray mounting platform and secure the tray using two screws. Attach the two exit trays to the finisher from the boss at <1>.

Exit trays

Screws D

Pawl

Tray 3

Pawl

8. Attach the paper holder plates.

Attach the 2 paper holder plates to the attaching portion of the finisher by fitting them as shown in the illustration.

Paper holder plates

4) Push the staple unit until it locks.

10. Paste the stapling position labels.

Stapling position label B

11. Remove the transport springs.

1. Pull out the exit unit of the copier until it stops.

2. Remove the 2 exit area cover securing screws and remove the exit area cover.

3. Remove the 2 transport springs which are attached to the exit area paper guide.

4. Store the 2 removed transport springs by hanging them on the exit unit front frame (shown in Fig. 1).

5. Attach the exit area cover to its original position and secure it using the 2 securing screws. At this time, ensure that the pawls of the exit area cover are under the paper guides. (See Fig. 2.)

Securing screw

Exit area cover

9. Attach the staple cartridge to the staple unit.

1) Insert the staple cartridge into the staple unit in the direction shown in the illustration.

2) Push the staple cartridge in until it clicks in place.

3) Push down the lock release lever to unlock the staple unit.

Exit unit

Transport spring

Paper guides

[Fig. 2]

[Fig. 1]

Connect the power cord, turn the main switch ON, and perform the following procedure.

12. Check the finisher operation.

• Check the operation in the STAPLE SORT mode.

Make 10 sheets of copies in the STAPLE SORT mode. Check to see if the copies are stapled properly.

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AR-FN3

[3] EXTERNAL VIEW AND

INTERNAL STRUCTURE

1. External view

2. Internal structure

13 10 12 11

18 16

10 1 2

6 7

No. Part name

1 Upper door 2 Front door 3 Tray 1 4 Tray 2 5 Tray 3

No. Part name

1 Paper discharge gate 1 2 Transport follower roller 2 3 Vertical transport roller 1 4 Transport follower roller 1 5 S tray reverse roller 50 6 Paper discharge pressure release roller 7 Paper discharge gate 3 F50 8 Paper discharge roller 4

9 Paper discharge roller 3 10 Follower roller FN3 11 Vertical transport roller 3 12 Paper discharge roller 2 13 Paper discharge gate 2 14 Paper transport roller 2 15 Paper discharge roller 1 16 De-curler roller 50 17 Vertical transport 3 lower 18 De-curler vertical follower shaft 19 Paper entry roller F50

8/6/1999 3 – 1

3. Clutch, solenoid

AR-FN3

7 4

1 5

No. Signal code Name Function and operation

1 OG1SL Paper discharge gate solenoid 1 Switching tray 1 paper discharge gate 2 OG2SL Paper discharge gate solenoid 2 Switching tray 2 paper discharge gate 3 OG3SL Paper discharge gate solenoid 3 Switching tray 3 paper discharge gate 4 PPSL Paper holding solenoid Holding paper in staple tray 5 STSL ST paper holding solenoid Holding paper in staple tray 6 T3PDSL Tray 3 paper discharge paddler solenoid For tray 3 paper discharge paddler 7 T12CL Tray 1 and 2 speed reduction clutch Reducing speed of tray 1, 2 paper discharge roller 8 PDCL Paddler clutch For paddler in staple tray 9 STORCL ST paper discharge roller pressure release clutch Pressing staple tray paper discharge roller

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AR-FN3

4. Sensor

21 15

Stapler unit

4 3

18 22

12 19

No. Signal code Name Function and operation

1 DSW1 Copier connection switch Detecting the finisher attached to the copier 2 DSW2 Top door opening switch Detecting top door opening 3 DSW3 Front door opening switch Detecting front door opening 4 INPD Paper entry sensor Detecting paper entry 5 PFD2 Transport sensor 2 Detecting paper transport 2 6 PFD3 Transport sensor 3 Detecting paper transport 3 7 PFD4 Transport sensor 4 Detecting paper transport 4 8 STID Staple paper entry sensor Detecting staple tray paper entry

9 STPD Staple tray paper sensor Detecting paper empty in staple tray 10 T1PF Tray 1 full sensor Detecting tray 1 full 11 T2PF Tray 2 full sensor Detecting tray 2 full 12 T3OD Tray 3 paper discharge sensor Detecting paper discharge in tray 3 13 T3UP Tray 3 upper limit sensor Detecting tray 3 upper limit 14 T3DN Tray 3 lower limit sensor Detecting tray 3 lower limit 15 EVRE Elevator motor encoder Elevator motor encoder 16 OFHP Offset motor home position sensor Detecting offset motor home position 17 JGHP Jogger motor home position sensor Detecting jogger motor home position 18 PSHP Pusher motor home position sensor Detecting pusher motor home position 19 STUHP Staple unit moving motor home position sensor Detecting staple unit moving motor home position 20 STORHP ST paper discharge roller pressure release clutch

home position sensor

21 T3PDHP Tray 3 paper discharge roller paddler home

Detecting ST paper discharge roller pressure release clutch home position

Detecting tray 3 paper discharge roller paddler home position

position sensor 22 STID2 Staple tray paper entry sensor 2 Detecting staple tray 2 paper entry 23 STND Stapler replacement sensor Detecting rotation of stapler for replacement of stapler 24 STHP Stapler home position sensor Detecting stapler home position 25 LSTS Stapler sensor Detecting staple in stapler unit 26 NCTS Stapler cartridge sensor Detection cartridge in staple unit 27 READY Stapler self priming sensor Detecting that stapler is at the position ready for stapling

8/6/1999 3 – 3

5. Motor and PWB unit

AR-FN3

3 4

10 11

No. Signal code Name Function and operation Type

1 FM Main drive motor Transports paper in the finisher. DC brushless 2 T3OM Tray 3 paper discharge drive motor Transports paper to tray 3. DC stepping 3 JGM Jogger motor Sets the jogger position for each paper size to align paper in

the staple tray.

4 PSM Pusher motor Lowers paper in the staple tray to the stapling position and lifts

to the paper discharge position. 5 STUM Staple unit moving motor Moves the staple unit to the stapling position. DC stepping 6 EVM Elevator motor Lifts and lowers tray 3 up and down. DC brushless 7 OFM Offset motor Shifts tray 3 front and back to sort paper in tray 3. DC brushless 8 STM Staple motor Drives the staple unit. DC brushless 9 — Finisher main PWB 100/200V Finisher control —

10 — Filter PWB Brush motor noise reduction — 11 — Filter PWB Brush motor noise reduction —

DC stepping

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AR-FN3

[4] OPERATIONAL DESCRIPTIONS

1. Transport route

The 3-tray finisher’s transport routes are as follows. a) Tray 1 face-down paper discharge

c) Tray 3 outside turn face-down paper discharge

b) Tray 2 face-down paper discharge

2. Explanation of each section

The 3-tray finisher consists of (1) an upper paper transport section, (2) a reversion section, (3) a staple tray, (4) an offset tray, and (5) an elevator section.

It has the following functions: Paper discharge to a selected tray, paper reversion, stapling for paper delivered to the offset tray (3 positions), offset, and elevation. Each function is performed according to the mode instructed by the copier.

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AR-FN3

A. Upper paper transport section

1) Paper transport

By rotating the main driving motor (FM), the transport rollers in the finisher are driven.

2) Paper discharge gate 1 (1)

The paper discharge gate 1 (1) is operated by the paper discharge gate 1 solenoid (OG1SL), to select between the routes for paper discharge to the tray 1 (8) and transport to the tray 2 (5)/staple tray.

3) Paper discharge gate 2 (6)

The paper discharge gate 2 (6) is operated by the paper discharge gate 2 solenoid (OG2SL) to select between the routes for paper discharge to the tray 2 (5) and transport to the staple tray.

4) Trays 1 (8) and 2 (5) paper discharge operation

When paper is discharged to tray 1 (8) and tray 2 (5), tray 12 reduction clutch (11) is operated at the paper discharging timing to reduce the speed of paper discharge rollers 1 and 2, improving the accuracy of paper alignment in tray 1 (8) and tray 2 (5).

5) Trays 1 (10) and 2 (7) paper full detection

Whether the trays 1 (10) and 2 (7) are filled with paper is detected by the tray 1 and 2 paper full sensor.

(9)

(8)

(5)

(7)

(6)

(10)

(11)

(1)

(2)

(3)

B. Staple tray

1) Jogger motor (JGM)

The jogger motor is driven when the paper is fed into the staple tray, to operate the jog plates F and R so as to align the sideways edge of the paper.

2) Paddler (11)

The paddler clutch (PDCL) is turned ON when the paper is fed into the staple tray, to give the paddler a full turn so as to drop the paper downward (pusher), thus achieving alignment in the vertical direction.

3) Pusher motor (PSM)

With the pusher motor rotating, the paper stored inside the staple tray is lowered from the home position (discharge position) to the stapling position; after stapling, the paper inside the staple tray is elevated from the stapling position to the home position.

4) Staple unit movement motor (STUM)

The staple unit is moved to the stapling positions (front, far end, 2 centers) by the staple unit motor.

5) Staple tray paper discharge

When the paper delivery roller pressure release clutch (STORCL) is turned ON, the paper delivery pressure release roller (4) is pressurized through the cam to discharge the paper from the stable tray.

6) Paper discharge gate 3 (5)

The paper discharge gate 3 (5) is operated by the paper discharge gate 3 solenoid (OG3SL) to switch over the routes of paper inside the staple tray between the paper discharge side and the staple side of the off-set tray.

7) Tray 3 paper discharge motor

The tray paper discharge motor (12) is rotated to drive the paper discharge rollers 3 and 4 to discharge paper to the tray 3.

(4)

(To staple tray)

No. Signal name Name

(1) — Paper discharge gate 1 (2) PFD2 Transport sensor 2 (3) INPD Paper entry sensor (4) PFD4 Transport sensor 4 (5) — Tray 2 (6) — Paper discharge gate 2 (7) T2PF Tray 2 paper full detecting sensor (8) — Tray 1

(9) PFD3 Transport sensor 3 (10) T1PF Tray paper full sensor (11) T12CL Trays 1 and 2 deceleration clutch

(1)

(2)

(11)

(10)

(9)

(8)

(12)

No. Signal name Part name

(1) — Short path switching gate (2) — Paper discharge roller 3 (3) — Pusher (4) — Paper delivery pressure release roller (5) — Paper discharge gate 3 (6) STPD Staple tray paper detection sensor (7) — Staple unit (8) T3ORSL Paper discharge roller 4

(9) T3OD Tray 3 paper discharge sensor (10) STID Staple tray paper entry sensor (11) — Paddler (12) T3OH Tray 3 paper discharge motor

(4) (5) (6)

(7)

4 – 2 8/19/1999

AR-FN3

(Operation of stapling)

1) 2) 2) 1)

Jog plate R

Pusher

Paper size

Jog plate F

Jogging in lateral direction

1) The jog plates are moved to the stand-by position before the paper is fed to the staple tray.

2) Immediately after the paper is fed into the staple tray, the jog plate is moved to the paper size position to ensure the alignment of the paper.

Stapler unit movement at the time of stapling (2-point stapling action is added.)

1) The pusher is elevated to the position which makes it possible for the staple unit to move.

2) The staple unit is moved to the staple position where the 2nd staple is driven.

3) The pusher (sheets to be stapled) is lowered to the stapling position.

4) Sheets are stapled.

5) The staple unit is returned to the 1st staple position. (After the job is finished, the staple unit is returned to the home position.)

D. Off-set tray

1) Off-set motor (3)

When the off-set motor (3) is driven, the tray is shifted sideways against the direction in which the sheets are delivered, so that the sheets discharged into the off-set tray (1) are sorted by the specified number of sheets. The rotation is unidirectional and controlled by the crank. The motor is stopped by the off-set home position sensor (2) turning ON.

(3)

Staple unit

Home position

Staple unit moving motor

Pusher

2) 4)

Paper discharge position

Staple position

ST rail

Staple unit movement at the time of stapling (1-point stapling)

1) The stapler unit is moved to the stapling position. – The number of sheets to be stapled is fed to the staple tray –

2) The pusher (the sheets to be stapled) is lowered to the stapling position.

3) The paper is stapled ... (in the case of 2-point stapling, the action that is described on the following page is added.)

4) The pusher (the sheets stapled) is elevated to the paper discharge position.

5) After the job, the stapler unit is returned to the home position.

Pusher

Staple unit

moving range

Staple position

ST rail

(2)

(1)

Moving range

(30 mm)

No. Signal name Part name

(1) — Tray 3 (Off-set tray) (2) OFHP OFHP Off-set home position sensor (3) OFM Off-set motor

E. Elevator

1) Elevator motor (3)

When the elevator motor (3) is driven, the winding pulley (5) is rotated in both forward and reverse to wind up the wire (6) stretching vertically so that the tray 3 (off-set tray) is moved up and down. This allows the discharge of paper at a fixed position according to the number of sheets to be loaded on the off-set tray.

2) Off-set tray full and load detection

When the power is turned ON, the off-set tray lowers to the lower limit sensor (4) position. Then it elevates until the upper limit sensor (7) turns ON, while counting the encoder pulses of the elevator motor (3).

The volume of paper loaded on the off-set tray is calculated (0 100%) by counting the number of pulses from the elevator encoder (1).

The off-set tray is judged to be full when both the lower and upper limit sensors (4), (7) are turned ON.

Staple unit moving motor

8/19/1999 4 – 3

(7)

AR-FN3

3. Basic operation

A. Basic operation flowchart

Power ON

Initialization when

powered on

(1)

(6)

(5)

(4)

No. Signal name Part name

(1) — Elevator motor encoder (2) — Elevator drive unit (3) EVM Elevator motor (4) T3DN Tray 3 lower limit sensor (5) — Winding pulley (6) — Wire (7) T3UP Tray 3 upper limit sensor

(3)

(2)

Independent movement

of staple unit

(Staple position)

Independent shifting

(Offset tray)

JOB_START

Transfer

Off-set tray paper

discharge

JOB_END

Operation when

JAM error occurs

Operation when

door is closed

Stapling

Fig. 1 Basic operation flowchart

1) Initialization

The finisher is initialized (home positioning of each motor) at the following timing.

• When the power is turned on.

• The finisher leaves the copier and when either of the top or bottom

doors are opened.

• When the copier start key is pressed (JOB_START):

• Recovery action is performed.

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AR-FN3

[5] DISASSEMBLY AND ASSEMBLY

[Note]

• This section explains the procedure for disassembling and

reinstalling the unit. Reinstall the unit in the reverse order of disassembly.

• Disassemble the unit in numerical order in each sketch.

• This section covers the procedure for disassembling the following

major parts. For the other parts, refer to the Parts Guide.

No. Part name

1 Main drive motor 2 Staple unit movement motor 3 Elevator motor 4 Off-set motor 5 Stapler 6 Jogger motor 7 Pusher motor 8 Elevator wires, top and bottom 9 Paper discharge roller 3

1. Main drive motor

2. Staple unit movement motor

8/19/1999 5 – 1

3. Elevator motor

AR-FN3

12)

11)

10)

13)

14)

[Note] Before removing the lower cover on the FN3, make sure the

tray 3 is at the upper limit position. If the tray 3 is not at the upper limit position, turn the knurled part on the shaft (A) in the sketch and move the tray 3 to the upper limit.

15)

16)

[Note] When setting the elevator motor 16), pay attention to the

direction of the filter PWB A. For the direction, see the sketch given above.

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AR-FN3

4. Off-set motor

5. Stapler

[Note] When setting the tray 3 cover (bottom), use caution not to get

the wire caught in the harness B. When setting the off-set motor 9), pay attention to the filter PWB A. For the direction, see the sketch given above.

8/19/1999 5 – 3

AR-FN3

6. Jogger motor

7. Pusher motor

[Note] When installing the jogger motor 6), pay attention to the har-

ness pulling-out direction. See the sketch given above.

5 – 4 8/19/1999

+ 37 hidden pages