SHARP SF-S18 Service Manual

SERVICE MANUAL

CODE: 00ZSFS18SM//E

MODEL SF-S18

CONTENTS

[ 1 ] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

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

[ 3 ] PARTS IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

[ 4 ] OPERATIONAL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

[ 5 ] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

[ 6 ] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

[ 7 ] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

[ 8 ] TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

[ 9 ] ACTUAL WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

[10] CIRCUIT DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

PARTS GUIDE

Parts marked with "!" is 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.

CONTENTS

[ 1 ] SPECIFICAT IO N S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

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

1. Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

[ 3 ] PARTS IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1. External fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2. Mechanism section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3. Sensors and switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4. Motors and PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

[ 4 ] O PERATIONAL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1. Paper transport mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2. Bin up-down shift mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3. Operation process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

[ 5 ] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1. External fitting removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2. Paper exit roller removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3. Spiral cam and tray removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4. Discharge brush removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5. Interface cable removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6. Control PWB removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7. Motor bracket removal (Transport motor & bin shift motor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

8. Bin shift motor clock sensor and transport motor clock sensor removal . . . . . . . . . . . . . . . . . . . 18

9. Bin home sensor and upper/lower limit sensor removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

10. One rotation sensor removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

11. Take-up position sensor and entry port sensor removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

12. Paper empty sensor upper removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

13. Paper empty sensor lower removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

[ 6 ] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

1. Single unit test mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2. Starting the single unit test mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3. Kinds of single unit test modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4. Description on each mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5. Setting of buzzer sound in the take-up mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

[ 7 ] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

[ 8 ] T ROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

[ 9 ] ACTUAL WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

[10] CIRCUIT DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

1. Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

[1] SPECIFICA TIONS

(1) Type: Installation to a copier (hanging type) (2) Distribution method: Bin shift by lead screws (3) No. of bins: 10 bins (The top bin is used also for

non-sort.)

(4) Capacity of sheets: 30 sheets for each bin, (100 sheets for

the top bin)

When sorting A4 / 8-1/2 × 11″ 30 sheets

B4 / 8-1/2 × 14″ 20 sheets A3 / 11 × 17″ 15 sheets

When grouping A4 / 8-1/2 × 11″ 20 sheets

B4 / 8-1/2 × 14″ 15 sheets A3 / 11 × 17″ 15 sheets

(5) Paper size

Non-sort A3 ∼ A6 (Postcard) R / 11″ × 17″ ∼ 8-1/2″× 5-1/2″ Sort/group A3 ∼ A5 / 11″ × 17″ ∼ 8-1/2″× 11″

(6) Process capacity: 10 ∼ 30 sheets/min (7) Paper transport: Center reference (8) Paper collecting: Face up (9) Paper weight

Non-sort 52 ∼ 128 g/m2 (14 ∼ 34 lbs) Sort/group 56 ∼ 80 g/m2 (15 ∼ 21 lbs)

(10) Power source: Supplied from the copier body. (11) External dimensions: 335 (W) × 493 (D) × 298 (H) mm (12) Weight: About 7 kg

[2] UNP ACKING AND INSTALLATION

1. Unpacking

When unpacking, refer to the figure below.

– 1 –

2. Installat ion

(5) SF-S18

Included parts

Support guide

(1 pc.)

Sorter seat cover securing screws

Sorter seat securing screws

(4 pcs.)

Spacers (4 pcs.)

(3 pcs.)

Stopper screw

Lockplate screws (M4 x 8)

(2 pcs.)

Sorter securing screws (M4 x 8)

(2 pcs.)

Felt washer

(1 pc.)

Unplug the copier and follow the procedure below.

1. Mount the lock plate.

Remove the screws (2) from the upper side of the copier’s left cabinet panel. Mount the lock plate to the upper side of the copier’s left cabinet panel and secure it with the M4 x 8 lockplate screws (2).

Upper left cabinet panel screws

Lock plate

(1 pc.)

Sorter seat

(1 pc.)

Sorter seat cover

(1 pc.)

Lock plate

Lock plate screws

2. Mount the support guide.

Hang the two hooks of the support guide on the exit area of the copier to mount the support guide.

Hooks

– 2 –

Support guide

3. Remove the cut-outs.

Remove the four cut-outs from the left cabinet panel of the copier.

Cut-outs

4. Insert the spacers.

Insert the four spacers into the holes which have been made by removing the cut-outs in step 3.

6. Mount the sorter seat cover.

Mount the sorter seat cover to the sorter seat and secure it using three sorter seat cover securing screws.

Sorter seat cover securing screws

Sorter seat cover

7. Mount the sorter.

Insert the shaft on the back of the sorter seat between the rollers at the back of the sorter.

Back side

Spacers

5. Mount the sorter seat.

Temporarily secure the sorter seat securing screws to the two upper spacers which have been mounted in step 4.

Insert these two sorter seat securing screws into the two upper holes of the sorter seat as shown in the figure.

Secure the lower part of the sorter seat by inserting the two sorter seat securing screws into the lower two holes of the sorter seat and tighten the temporarily secured upper screws to secure the sorter seat.

Sorter seat securing screws

Rollers

Sorter

Sorter seat shaft

Next, insert the slide rail on the front of the sorter seat into the slide rail mount on the front of the sorter and push the sorter in place.

Front side

Slide rail mount

Sorter

Sorter seat securing screws

Sorter seat

Sorter seat slide rail

NOTE: Be sure to slide the sorter away from the copier and check that the sorter is not removed from the slide rail of the sorter seat.

– 3 –

8. Mount the stopper.

Mount the felt washer to the stopper screw and secure the screw to the sorter seat shaft.

Shaft

Felt washer

Stopper screw

9. Remove the sorter’s front cabinet panel.

Remove the front cabinet panel screw. Next, using a screwdriver, pry open the lower part of the front cabinet panel to pull the lowest tab from the slot in which it is anchored. Pull the front cabinet panel slightly up and out to remove it. Disconnect the connector which is plugged into the front cabinet panel.

Connector

Tab

Front cabinet panel

Front cabinet panel screw

10. Attach the sorter to the sorter seat.

Install the M4 x 8 sorter securing screws (2 pcs.) in the screw holes on the sorter to attach the sorter to the sorter seat.

Sorter

Slide rail

Sorter securing screws

(M4 x 8)

11. Mount the sorter’s front cabinet panel.

Plug the connector from the sorter into the circuit board inside the sorter’s front cabinet panel.

Fit the tabs on the left side of the front cabinet panel behind the ribs on the sorter, and slide the tabs on the right-hand side of the front cabinet panel behind the ribs in the sorter.

Check to be sure the tabs are securely positioned behind the ribs and inserted properly into the slot.

Secure the front cabinet panel using the screw which was removed in step 9.

Tab

Straight-edge screwdriver

Tab

Front cabinet panel

Circuit board

Tab

Connector

Tab

Front cabinet panel screw

Lock lever

Ribs

– 4 –

12. Connect the sorter connector.



Remove the sorter connector cover securing screw which is mounted to the rear cabinet panel of the copier and remove the sorter connector cover.

Connect the sorter connector to the connector on the copier and secure it using the sorter connector securing screw.

Sorter connector cover

Securing screw

Sorter connector

Plug the copier into a grounded outlet and turn the power switch on.

Then, follow the procedure below.

13. Set the mode.

• Operate the copier keys to set the mode.

C 



0/





0/



The above key operation will display the currently set mode.

2 



6 



1 

• When only the SF-S18 is to be set, immediately after the above

key operation, operate the keys as follows:

1 



0/





• If the mode is to be set in combination with other options, use the

table shown below to add up the total of the setting values for all

the peripheral devices to be set, and set that total value. For example, if the SF-S18 and RADF are to be set, the total setting value is 1 + 10 = 11. Operate the keys as follows:

1 



RADF 1 Stand/paper drawer 4 SF-S18 10

ADF 1

1 



– 5 –

[3] PARTS IDENTIFICATION

1. External fittings

Rear cover

Trays

2. Mechanism section

Top cover

Fro nt co ve r

Spiral cam

Take-up SEN lever

Paper exit roller

– 6 –

3. Sensors and switches

SEN7

SEN6

SEN5 (Light emitting)

SEN4

SEN1

SEN2

SEN8

SW1

SEN3

SEN5 (Light receiving)

Code Name Type Operation, function Contact, output

SEN1 Entry port sensor Photo interrupter Turns HIGH when the paper lead edge

reaches the transport roller.

SEN2 Bin home sensor Photo interrupter Used to sense the tray home position. HIGH when the home position is

SEN3 One rotation sensor Photo interrupter Used to sense the tray stop position. HIGH when the stop position is

SEN4 Take-up position sensor Photo interrupter Used to sense the paper take-up

position. SEN5 Paper empty sensor Transmission sensor Used to sense the paper on the tray. LOW when the paper is sensed. SEN6 Bin shift motor clock sensor Photo interrupter Used to sense rotation of the bin shift

motor. SEN7 Transport motor clock

sensor

SEN8 Upper/lower limit sensor Photo interrupter Used to sense the tray limit position. HIGH when the limit position is

SW1 Sorter set switch Micro switch Used to sense the sorter installation LOW when the sorter is installed.

Photo interrupter Used to sense rotation of the transport

motor.

HIGH when paper is sensed.

sensed.

sensed. LOW when the take-up position is

sensed.

Pulse output

sensed.

– 7 –

4. Motors and PWB

Control PWB

Display PW B

Code Name Type Operation, function Contact, output

M1 Transport motor DC motor Used to shift the transport roller. M2 Bin shift motor DC motor Used to drive the spiral cam for moving the tray up and down.

– 8 –

[4] OPERATIONAL DESCRIPTIONS

1. Paper transport mechanism

The transport motor power is transmitted to the paper exit roller and the paper feed roller.

Paper feed direction

Paper exit roller

Paper feed roller

Transport motor

2. Bin up-down shift mechanism

The bin shift motor power is transmitted to the spiral cam 1 (R side) by the timing belt and the gear, and to the spiral cam 2 (F side) at the same time by the drive shaft. The bin is shifted up or down by forword or reverse rotation of the motor. The bin is stopped at the stop position by the one rotation sensor attached to the spiral cam 2.

Down Up

Spiral cam

Bin shaft motor

Down

Down Up

Spiral cam

One rotation sensor

Paper exit direction

Drive shaft

– 9 –

+ 24 hidden pages