SHARP ARRP3, SHarrp3 Service Manual

SERVICE MANUAL

Digital Copier Reverse Single Pass Feeder (RSPF)

MODEL AR-RP3

CONTENTS

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

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

[ 3 ] UNPACKING AND INSTALLATION........................................................1

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

[ 5 ] OPEREATIONAL DESCRIPTIONS ........................................................5

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

[ 7 ] DISASSEMBLY AND ASSEMBLY..........................................................9

[ 8 ] MAINTENANCE....................................................................................14

[ 9 ] ELECTRICAL SECTION .......................................................................15

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 machine is a duplex document auto feeder attached to a digital copier.

It feeds originals automatically to allow continuous copying.

[2] SPECIFICATIONS

[3] UNPACKING AND INSTALLATION

1. Unpacking

For unpacking, refer to the figure below.

Document set direction

Document set position

Document transport system

Document feed sequence

Document size AB series: A3 ~ A5

Document weight 56 ~ 90g/m Document set

quantity Dimensions 583mm (W) x 435mm (D) x 133mm (H) Weight About 5.5 kg Power source Supplied from the copier. (DC 24V) Power consumption 26.4W Document size

detection Detection size Japan: A3, B4, A4, A4R, B5, B5R,

Mixture of different document sizes

Random paper feed Not available Document reverse Not allowed Display section (LED) None Document exchange

speed

Face up

Center reference

Sheet through type

Top take-up feed

Inch series: 11 x 17 ~ 8.5 x 5.5 Duplex invoice not available

, 15 ~ 23.9lbs

Max. 30 sheets (90g/m 4mm)

On the document feed tray

A5 (A5R for FAX only)

Inch series: 11 x 17, 8.5 x 14, 8.5 x 11,

8.5 x 11R, 8.5 x 5.5

EX AB series: A3, B4, A4, A4R,

A5 (A5R for FAX only)

Mixture paper feed : Not available during copying. Available during FAX (same width only)

S ® S 23 sheets/min S ® S 27 sheets/min

, max. thickness

2. Installation

Parts included

4. Remove the glass holde rs (rig ht an d le ft) and remo ve the document glass.

Remove the right and left glass holders and remove the document glass.

Intermediate tray

(only for AR-RP3/DM-RP1)

RSPF glass cover

Turn off the main switch of the copier and then remove the power plug of the copier from the outlet.

1. Remove the plate n co ve r .

Lift the platen cover and remove it from the copier.

2. Remove the screws of the glass holders.

Remove the two screws (M3 x 8) of the left glass holder and the three screws (M3 x 8) of the right glass holder.

Document glass

Left glass holder

Right glass holder

5. Attach the front cabinet.

Attach the front cabinet of the copier. At this time, ensure that the three pawls on the rear side are securely inserted to the frame of the copier.

Pawls

Screws (M3 x 8)

3. Remove the front cabinet.

While raising the front cabinet toward your side, remove the three pawls from the rear side of the front cabinet.

Pawls

6. Attach the RSPF glass holder.

Insert the RSPF glass holder to the document glass. Then, attach the document glass to the copier, fix the left glass holder that has been removed in step 3 using two screws (M3 x 8), and fix the RSPF glass using three screws (M3 x 8).

RSPF glass holder

Document glass

Screws (M3 x 8)

7. Attach the RSPF.

Insert the hinge portion of the RSPF to the mounting portion of the copier by holding the RSPF at an angle toward the rear side.

Hinge

8. Connect the relay connector.

Connect the Centronics connector of the RSPF to the connector of the copier and then tighten the screws of the connector.

Screw

9. Remove the filament tape.

Remove the filament tape located in the positions shown in the illustration.

Filament tape

10. Attach the intermediate tray.

Insert the intermediate tray all the way into the RSPF.

Intermediate tray

Insert the power plug of the copier to the out let and turn on the main switch of the copier.

11. Adjust the RSPF white correction pixel

Open the RSPF and execute SIM 63-7 to adjust the RSPF auto white correction pixel.

12. Check the copy magnification ratio.

Set an original on the document glass and copy it. Then, set an original in the document feeder tray and copy it.

If the magnification ratio of the copy from t he RSPF is different from that of the copy from the document glass, carry out adjustment referring to the service manual.

13. Check the center di splacement.

Set an original on the document glass and copy it. Then, set an original in the document feeder tray and copy it.

If the center of the copy image from the RSPF is different from that of the copy image from the document glass, carry out adjustment referring to the service manual.

14. Check the top end position.

Set an original on the document glass and copy it. Then, set an original in the document feeder tray and copy it.

If the top end position of the copy image from the RSPF is different from that of the copy image from the document glass, carry out adjustment referring to the service manual.

15. Check the open/close detection position.

If the open/close detection position measured with the open/close detection position adjustment method described in the service manual does not conform to the specifications, carry out adjustment referring to the service manual.

Installation of RSPF is now complete.

[4] EXTERNAL VIEW AND INTERNAL STRUCTURE

1. External view

2. Internal structure

No. Name

1 Document set tray 2 Document guide 3 Document feed section cover 4 Document transport section cover 5 Document exit section

Sensor, detector, etc.

No. Code Name Type Function/Operation

1 W0 Document set sensor Photo transmission Detects presence of documents. 2 COVER Open/close sensor Photo transmission Detects open/close of the paper feed unit. 3 W1 Document width sensor (A4R, LTR, A5) Photo transmission Detects the document width on the tray. 4 W2 Document width sensor (B4, B5) Photo transmission Detects the document width on the tray. 5 W3 Document width sensor (WL, TR, A5R, A4, LT) Photo transmission Detects the document width on the tray. 6 PSOL Pickup solenoid — — 7 PAPER Paper entry sensor Photo transmission Detects presence of documents. 8 RSOL Pressure release solenoid — — 9 CLH Transport clutch — —

10 MOT SPF motor Stepping motor Drives document feed on the tray, transport, and

11 GSOL Gate solenoid — — 12 — Interface PWB — — 13 L1 Document length detection SW (Short) Photo transmission Detects the document length on the tray. 14 L2 Document length detection SW (Long) Photo transmission Detects the document length on the tray. 15 COVER OPEN Book sensor Photo transmission Detects the SPF float. 16 PO Paper exit sensor Photo transmission Detects presence of documents.

paper exit roller.

[5] OPEREATIONAL DESCRIPTIONS

1. Major parts of the paper fed section

1 2 3,4 5 6 7 8

No. Part name Operation

1 Document length

sensor (L2)

2 Document length

sensor (L1)

3 Document set sensor

(W0)

4 Document width sensor

(W1, W2, W3) 5 Pickup roller Picks up documents. 6 Paper feed roller Feeds and transports documents. 7 Paper entry sensor

(PAPER) 8 PS roller Makes synchronization between

9 PS follower roller Makes synchronization between

10 Transport roller Transports documents. 11 Transport follower roller Transports documents. 12 Paper exit sensor (PO) Detects transport of documents. 13 Paper exit follower roller Discharges documents. 14 Paper exit roller Discharges documents. 15 Reverse gate Opens/closes the document

16 Paper exit gate Separate document exit to the

17 Intermediate tray Discharges documents to the

Detects the document length on the tray.

Detects presence of documents.

Detects the document width.

Detects transport of documents.

the document lead edge and the image lead edge.

reverse path.

intermediate or the paper exit tray.

intermediate tray during document reverse.

2. Out line of operations

[Duplex documents]

1) Document set (Document set sensor ON)

2) Document size detection (Document width sensors W1, W2, W3

3) Copier COPY key ON

4) SPF motor ON

5) Pickup solenoid ON

910111314 151617

6) Pickup roller and paper feed roller rotation

7) Paper entry sensor detects the document presence.

8) PS roller rotation

9) Copying (Front surface of document)

10) Transport roller rotation

11) Paper exit roller rotation

12) Paper exit gate falls down. (Documents are discharged to the

13) Reverse gate falls down.

14) Paper exit rol ler reverse rotation (Documents are fed to the re-

15) Paper entry sensor detects document presence.

16) PS roller rotation

17) Copying (Back surface of document)

18) Transport roller rotation

19) Paper exit roller rotation

20) Paper exit gate falls down (Documents are discharged to the

21) Reverse gate falls down.

22) Paper exit rol ler reverse rotation (Documents are fed to the re-

23) Paper entry sensor detects document presence.

24) PS roller rotation

25) Paper exit roller rotation

26) Paper exit gate lifts up.

27) Documents are fed to the paper exit tray.

28) Next document ® (YES) ® Go to 4).

29) SPF motor OFF

detect the document width, and document length sensors L1, L2 detect the document length.)

intermediate tray.)

verse path.)

intermediate tray.)

verse path.)

(NO)

3. Document size detection

1) Document size detection with the document set tray When documents are set on the document set tray in the auto selec-

tion mode of paper/copy magnification ratio, the document size is detected and paper and the copy magnification ratio are automatically selected. When different sizes of documents are set, the max. size is detected. The document width is detected by the document width sensors (W1, W2, W3), and the document length is detected by the document length sensors (L1, L2) to identify the document size. Judgement of the document size is made in a certain timing after detecting the document with the document set sensor (W0).

Document set

size and set

direction

Document width sensor

W1 W2 W3 L1 L2 A5 B5

A5R

series

B5R A4R

8.5 x 13" B4 A3

8.5" x 5.5"

8.5" x 5.5"R

Inch

series

11" x 8.5"

11" x 8.5"R

8.5" x 13"

8.5" x 14" 11" x 17"

(Note) Detection sensor ON: , OFF:

Document

length sensor

[6] ADJUSTMENTS

(1) SPF auto white correction pixel adjustment

[Function] The SPF white correction start pixel position is automatically adjusted.

This adjustment is performed after the lens unit is replaced.

[Operation] (Initial screen)

Sim63-7 SPF ADJ. WHITE ADJUST

PRESS OK KEY EXEC

Press

the [OK] key.

Press

the [RETURN] key.

(During execution)

Sim63-7 SPF ADJ. WHITE ADJUST

EXEC

During execution, "EXEC" is highlighted.

Normal end Abnormal end

(Initial screen with the execution result displayed)

Sim63-7 SPF ADJ. WHITE ADJUST CPMPLETE [160] PRESS OK KEY EXEC

(2) RSPF magnification ratio adjustment

Note : When performing this adjustment, check that the CCD unit

is properly installed.

: When perf orming this adjustment, check that the OC mode

adjustment in copying is completed.

1) Place a scale on the document table as shown below, and make a normal copy to make a test chart.

Open the SPF unit and press the [OK] key. [ ] indicates the order number of the pixel of the white sheet for SPF exposure correction in the SPF position.

When the adjustment is completed normally, "COMPLETE" is displayed, and data are written into the EEPROM. When the adjustment is completed abnormally, "ERROR" is displayed and data are not written into the EEPROM.

[CA] key: Cancels the test command. [Interruption] key: Shifts to the sub code entry menu. [OK] key: Shifts to the execution menu.

The SPF white correction start pixel = Displayed pixel position - 34

Interruption is inhibited during execution.

If the simulation is executed with the SPF unit closed, an error is resulted.

Sim63-7 SPF ADJ. WHITE ADJUST ERROR [ 0] PRESS OK KEY EXEC

Note: Since the printed paper is used as the test chart, place the scale in parallel to both sides.

2) Set the test chart to the SPF and make a normal copy.

3) Compare the copy and the test chart. If an adjustment is needed, perform the following procedures.

4) Execute SIM 8-1. The auto exposure lamp lights up.

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