SHARP SM-ARD24 Service Manual

SERVICE MANUAL

Digital copier

MODEL

CONTENTS

CODE : 00Z

ARD25//A1E

: Paper feed unit

250-sheet paper

AR-D24 AR-D25

feed unit 500-sheet paper

feed unit

[1] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

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

[3] UNPACKING AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . 2

[4] EXTERNAL VIEW AND INTERNAL STRUCTURE . . . . . . . . . . . 8

[5] OPERATIONAL DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . 9

[6] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . 9

[7] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

[8] ELECTRICAL SECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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 servic e only. The contents are subject to change without notice.

[1] PRODUCT OUTLINE

The 250-sheet paper feed unit and the 500-sheet paper feed unit are the optional paper feed cassettes for the digital copier, and they are the same structure as the 250-sheet cassette of the copier. The combination of the copier and the paper feed cassette is as shown below:

Copier

(1-Tray Model)

Standard cassette

250-sheet paper feed unit

Copier

(2-Tray Model)

Standard cassette Standard cassette

250-sheet paper feed unit

250-sheet cassette 250-sheet cassette

500-sheet paper feed unit

[2] SPECIFICATIONS

1. Paper feed unit

AR-D24 AR-D25

Paper feed step(s)

Paper feed capacity

Size detection None

Paper feed detection

Paper feed size A3, B4, A4, A4R, B5, B5R

Paper weight 56 ~ 90g/m2 (15 ~ 24lbs) Shipping size AB series: A4

Size selection

Cassette detachment

Heater Available only in Japan model Power source Supplied from the machine. External

dimension (mm)

Weight About 4.7kg

Power consumption

1-step 2-step

250 sheets x 1 step 250 sheets x 2 steps

(The paper size is set by the user program.) Available

11 x 17, 8.5 x 14, 8.5 x 13, 8.5 x 11, 8.5 x 11R, 8K, 16K, 16KR

Inch series: 8.5 x 11 User operation (Si ze set tin g by th e user pro gr am)

Japan: A3, B4, A4, A4R, B5, B5R Inch series: 11 x 17, 8.5 x 14, 8.5 x 11, 8.5 x 11R EX AB series: A3, B4, A4, A4R Inch series foolscap area:

11 x 17, 8.5 x 14, 8.5 x 13, 8.5 x 11,

8.5 x 11R

EX AB series foolscap area:

A3, B4, A4, A4R, 8.5 x 13

Possible by the user

W: 590 x D: 471 x H: 88 (Jut portion is not included.)

(With cassette)

5.6W 8.4W

W: 590 x D: 471 x H: 173.5 (Jut portion is not included.)

About 10.0kg (With cassette)

AR-D25/D24 PRODUCT OUTLINE

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[3] UNPACKING AND INSTALLATION

1. Unpacking

(AR-D24)

2. Installation

Included parts

Part name Quantity Screw (Fixing plate) 8 Screw 2 Screw 1 Fixing plate 3 Fixing plate 1 Connection gear 1

1) Remove the document cover.

Lift the document cover from the copier and tilt it to the rear side to remove it.

(AR-D25)

2) Remove the rear cabinet.

Remove the screw and remove the cover. Then, remove the five screws and remove the rear cabinet.

3) Remove the copier rear cover.

Remove the two screws and remove the rear cover.

AR-D25/D24 UNPACKING AND INSTALLATION

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4) Make a hole for connector.

• Copier (1-tray model) Cut out the portion shown in the illustration with nippers or the like.

• Copier (2-tray model) Press the portion shown in the illustration with a screwdriver or the

like to remove it.

5) Remove the second cassette rear cover.

6) Install the copier onto the 250-sheet paper feed unit.

Put the copier on the 250-sheet paper feed unit, and fix with the fixing plates and the screws.

• Copier (1-tray model) + 250-sheet paper feed unit

Remove the rear cover which is attached to the 250-sheet paper feed unit.

Remove the rear cover (upper stage) from the 500-sheet paper feed unit.

• Copier (2-tray model) + 250-sheet paper feed unit

AR-D25/D24 UNPACKING AND INSTALLATION

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• Copier (1-tray model) + 500-sheet paper feed unit

7) Remove the connection gear lock.

Remove the connection gear lock (with the red tug) after setting.

8) Connect the connector

Connect the optional relay harness contained in the 1-tray model (2-tray model) paper feed unit to the PWB of the copier.

• Optional relay harness

• Copier (2-tray model) + 500-sheet paper feed unit

• Copier (1-tray model) + 250-sheet paper feed unit

AR-D25/D24 UNPACKING AND INSTALLATION

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• Copier (2-tray model) + 250-sheet paper feed unit

• Copier (2-tray model) + 500-sheet paper feed unit

• Copier (1-tray model) + 500-sheet paper feed unit

9) Remove the cassette packing fixtures.

Pull the cassette until it stops. Turn and remove the packing fixture which is fixing the paper pressure

plate inside the cassette in the direction of arrow.

10) Set the cassette side plate.

Hold the knob of the cassette side plate, slide it and set to the position of the paper size to be used.

AR-D25/D24 UNPACKING AND INSTALLATION

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11) Install the cassette rear edge plate.

Install the cassette rear plate to the position of the paper size to be used.

Note: To make the paper center shift adjustment and the lead edge

adjustment, insert the power plug of the copier into the power outlet, turn on the power switch, and perform the following procedure.

13) Perform the center shift adjustment.

Set a document on the document glass and make a copy.

*If the image center is shifted, perform the following procedure.

1. Execute SIM 50-10 with the key operations on the copier.

12) Set the paper.

When setting the paper, do not exceed the height of the indication label.

cannot stack more than this line.

[Program key]

C 5 0 1 0

2. Turn on the Auto lamp and the lamp of a corresponding tray by Light and Dark key, Enter the set value with the keys on the operation panel to perform the center shift adjustment, make a copy again, and check that the center is not shifted.

Rear side

Front side

Paper output direction

Printin

side

• When the s et value is inc reased, the image is shifted to the rear side.

Center line of image

Output direction

Printing side

Center line of paper

Leading edge

• When the set value is decreased, the image is shifted to the front side.

Center line of image

Output direction

Center line of paper

Printing side

Leading edge

After completion of the adjustment, press the key to cancel the

mode.

14) Perform the lead edge adjustment.

Set a document on the document glass, and make a copy.

1. Execute SIM 50-1 with the key operations on the copier.

[Program key]

# 1

C 5 0

2. Turn on the Auto lamp and the lamp of a corresponding tray by Light and Dark key, Enter the set value with the keys on the operation panel and make a copy to check that the lead edge is within the specified range.

• When the set value is increased, the copy image moves forward.

• When the set value is decreased, the copy image moves backward.

After completion of the adjustment, press the key to cancel the mode.

AR-D25/D24 UNPACKING AND INSTALLATION

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15) Changing a tray’s paper size setting

PAPER

SIZE

11X17

8½

5½

EXTRA

TRAY SELECT

ORIGINAL SIZE

ENTER

PAPER

SIZE

11X17

8½

5½

EXTRA

START

Follow these steps to change a tray’s paper size setting. Note:

• The paper size setting cannot be changed when the machine has stopped temporarily due to running out of paper or a misfeed, or during interrupt copying.

• During printing (even in copy mode), the paper size setting cannot be changed.

• 5-1/2” x 8-1/2” size paper can only be selected in upper paper tray.

• Do not load paper that is a different size than the paper size setting. Copying will not be possible.

1. H old down the [PAPER SIZE ENTER] key for more than 5 seconds to set the selected paper size.

The currently selected paper feed location indicator will blink and the corresponding paper size (which is currently set) indicator will light steadily. All other indicators will go out.

4. Squeeze the lock lever of the front guide and slide the front guide to match the width of the paper, and move the left guide to the appropriate slot as marked on the tray.

Left guide

Front guide

• The front guide is a slide-type guide. Grasp the locking knob on the guide and slide the guide to the indicator line of the paper to be loaded.

• The left guide is an insert-type guide. Remove it and then insert it at the indicator line of the paper to be loaded.

• Whe n using 11” x 17” sized paper store the left guide in the slot at the left front of the paper tray.

2. Use the [TRAY SELECT] key ( ) to select the paper tray for which you wish to change the paper size setting.

Each time the [TRAY SELECT] key ( ) is pressed, a paper tray will be indicated with a blinking paper feed location indicator.

3. U se the [ORIGINAL SIZE ENTER] key to select the paper size. The indicator of the selected paper size lights up.

5. Press the [START] key ( ) and then the [PAPER SIZE ENTER] key.

To change0 the paper size setting of another tray, repeat steps 2 to 3 after pressing the [START] key ( ).

Note: Affix the paper size label for the paper size selected in step 3 to

the label position on the right end of the tray.

AR-D25/D24 UNPACKING AND INSTALLATION

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[4] EXTERNAL VIEW AND INTERNAL STRUCTURE

1. External view

No. Name No. Name No. Name

1 Paper feed tray 2 2-step paper feed right cover 3 1-step paper feed right cover

2. Internal structure

Sensors and detectors

No. Code Name Type Function, operation Remark

1 DRS1 Door open/close sensor Photo transmission Detects door open/close. 2 PPD1 Paper entry sensor Photo transmission Detects paper transport. 3 CSS1 Paper empty sensor Photo transmission Detects paper presence/empty. 4 CASS1 Cassette detection SW Contact Detects cassette installation. 5 FSOL1 Transport solenoid DC solenoid Transports paper. (for clutch) 6 PSOL1 Paper feed solenoid DC solenoid Feeds paper. (For clutch) 7 PPD2 Paper entry sensor Photo transmission Detects paper transport. AR-D25 only 8 CSS2 Paper empty sensor Photo transmission Detects paper in the cassette. AR-D25 only

9 CASS2 Cassette detection SW Contact Detects cassette installation. AR-D25 only 10 PSOL2 Paper feed solenoid DC solenoid Feeds paper. AR-D25 only 11 PWB Interface PWB — —

AR-D25/D24 EXTERNAL VIEW AND INTERNAL STRUCTURE

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[5] OPERATIONAL DESCRIPTION

[6] DISASSEMBLY AND ASSEMBLY

1. Paper transport path

Transport roller

PF sensor

Copier cassette

250-sheet paper feed unit (upper)

250-sheet paper feed unit (Lower)

Paper feed roller

2. Operational descriptions

The operations are controlled by the main body of the copier. the paper feed roller (semi-circular roller) and the transport roller are driven by the gear of the copier. Paper is separated by the paper feed roller and the separation pawl, and detected by the PF sensor, then transported to the Resist roller by the transport roller.

1. Rear cover

[AR-D24]

[AR-D25]

To copier's PS

Copier

250-sheet paper feed unit

Paper lead edge

No. Name Operation

1 Paper feed roller Picks up paper.

2 Separation pawl Prevents against double feed of paper.

3 Transport roller Transports paper.

4 Paper entry sensor Detects paper transport.

5 Resist roller Makes synchronization between the

paper lead edge and the image lead edge.

2. Paper feed unit section

[AR-D24]

AR-D25/D24 OPERATIONAL DESCRIPTION

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+ 23 hidden pages