SHARP ARRP7 Service Manual

SERVICE MANUAL

CODE : 00Z

ARRP7//A1E

Digital copier

Reverse Single Pass Feeder (RSPF)

MODEL

CONTENTS

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

AR-RP7

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

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

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

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

[6] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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

[8] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

[9] ELECTRICAL SECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Parts mark ed w ith "!" 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 pub lished to be used

SHARP CORPORATION

for after sales service only. The contents are subject to change without notice.

[1] PRODUCT OUTLIN E

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

It feeds originals automatically to allow continuous copying.

[2] SPECIFICATIONS

Document set direction Face up Document set position Center reference Document transport

system Document fe e d se qu enc e Top take-up feed Document size AB series: A3 ~ A5

Document weight

Document set quantity Max. 100 sheets

Dimensions 586mm (W) x 457mm (D) x 140mm (H) Weight About 7.4 kg Power source Supplied from the copier. (DC 24V) Power consumption 26.4W Document size detection On the document feed tray Detection size Japan: A3, B4, A4, A4R, B5, B5R,

Mixture of different document sizes

Document reverse Allowed (without 8.5 x 5.5)

Display section (LED) None Document exchange

speed

Sheet through type

Inch series: 11 x 17 ~ 8.5 x 5.5 Simplex

: 35 ~ 128g/m2, 9 ~ 34lbs

Duplex

: 52 ~ 105g/m2, 13.9 ~ 28lbs

: max. thickness 13mm)

(90g/m

A5, A5R

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

EX AB series:A3, B4, A4, A4R, A5, A5R * : FAX and scanner

Simplex

** : Mixture paper feed: Available (same width

only)

(Invoice size, FA X send and sc anner s can are possible.)

S 3 S : 23 sheets/min, 27 sheets/min S 3 D : 18.4 sheets/min, 21.6 sheets/min Fax memory send/Scan function (200dpi)

8.5 x 11R, 8.5 x 5.5

5.5R

copy only

: 40 sheets/min (A4R)

, 8.5 x

[3] UNPACKING AND INSTALLATION

1. Unpacking

For unpacking, refer to the figure below.

2. Installation

RSPF glass coverIntermediate tray

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

1. Remove the platen cover.

Lift the platen cover and remove it from the copier.

AR-RP7 PRODUCT OUTLINE

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2. Remove the glass holders (right and left) and remove

the document glass.

Remove the right and left glass holders and remove the document glass. Remove the two screws (M3x8) of the left glass holder and the three screws (M3x8) of the right glass holder.

5. Remove the filament tape.

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

Filament tape

Screws (M3x8)

Left glass holder

Document glass

Screws (M3x8)

Right glass holde

3. Attach t he 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 (M3x8), and fix the RSPF glass using three screws (M3x8).

Screws (M3x8)

Left glass holder

Document glass

Screws (M3x8)

Filament tape

6. Connect the relay connector.

Connect the Centronics connector of the RSPF t o the connector of t he copier and then tighten the screws of the connector.

Screw

RSPF glass holde

4. 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

7. Attach the intermediate tray.

Insert the intermediate tray all the way into the RSPF.

Intermediate tray

AR-RP7 UNPACKING AND INSTALLATION

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Insert the power plug of the copier to the outle t and turn on the main switch of the copier.

8. Adjust the RSPF white correcti on pixel.

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

1) Open the SPF unit and press the START key.

SIMULATION 63-7 SHADING POSITION ADJUSTMENT. PRESS START.

2) Shading position adjustmen t is perfor m ed. (Cannot interrupt) If the simu lat i on i s ex ec ut ed wi t h t he SPF uni t cl ose d, an er r or i s r es ult ed.

SIMULATION 63-7 SHADING POSITION ADJUSTMENT. EXECUTING...

3) [ ] 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.

SIMULATION 63-7 SHADING POSITION ADJUSTMENT. COMPLETE. [160]

3) Fold the A/4 (LTR) paper in half, set to the A5R (Invoice R) size, adjust the guide and press the start key.

SIMULATION 53-6 SPF TRAY ADJUSTMENT. INVR PAPER SET, AND PRESS START KEY.

4) Adjust the guide to the minimum width and press the start key.

SIMULATION 53-6 SPF TRAY ADJUSTMENT. MIN POSITION SET, AND PRESS START KEY.

5) Make sure the indicator reads 60 before pressing the start key.

SIMULATION 53-6 SPF TRAY ADJUSTMENT. INPUT VALUE 1-99, AND PRESS START.

6) Make sure the indicator reads 40 before pressing the start key.

SIMULATION 53-6 SPF TRAY ADJUSTMENT. INPUT VALUE 1-99, AND PRESS START.

When the adjustment is completed abnormally, “ERROR” is displayed and data are not written into the EEPROM.

SIMULATION 63-7 SHADING POSITION ADJUSTMENT. ERROR. [ 0]

*T he SP F white correct ion start pixel = Displayed pixel position -34.

9. Adjust the document guide width (Sim53-6)

Caution: If this adjustment is not performed, the document size display

remains special.

1) With the document guide opened to the full, set A/3 (A/4) (WLT (LT) in the inch system) paper and adjust the guide. Press the start key.

SIMULATION 53-6 SPF TRAY ADJUSTMENT. WLT PAPER SET, AND PRESS START KEY.

2) Set to A4R (LTR) size, adjust the guide and press the start key.

SIMULATION 53-6 SPF TRAY ADJUSTMENT. LTR PAPER SET, AND PRESS START KEY.

7) Make sure the document size is correctly shown in Sim2-2.

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

11. Check the center displacement.

• 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.

12. 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.

13. 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.

AR-RP7 UNPACKING AND INSTALLATION

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[4] EXTERNAL VIEW AND INTERNAL STRUCTURE

1. External view

No. Name

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

2. Internal structure

AR-RP7 EXTERNAL VIEW AND INTERNAL STRUCTURE

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Sensor, detector, etc.

No. Code Name Type Function/Operation

1 EMPS Document set sensor Photo transmission Detects presence of documents. 2 FGOD Open/close sensor Photo transmission Detects open/close of the paper feed unit. 3 DFCL Paper feed clutch — — 4 DFD Paper entry sensor Photo transmission Detects presence of documents. 5 RSOL Pressure release solenoid — — 6 CLH Transport clutch — — 7 DTM SPF motor Stepping motor Drives document feed on the tray, transport, and paper exit roller. 8 GSOL Gate solenoid — —

9 — Interface PWB — — 10 DLS1 Document length detection SW (Short) Photo transmission Detects the document length on the tray . 11 DLS2 Document length detection SW (Long) Photo trans mission Detects the document length on the tray. 12 OPCLS Book sensor Photo transmission Detects the SPF float. 13 RDD Paper exit sensor Photo transmission Detects presence of documents. 14 SWD Document width sensor Volume Detects the document width on the tray.

[5] OPEREATIONAL DESCRIPTIONS

1. Major parts of the paper feed section

12 43567

10 1918111314 151617 12

No. Part name Operation

1 Document length sensor (L2) Detects the document length on the tray. 2 Document length sensor (L1) Detects the document length on the tray. 3 Document set sensor Detects presence of documents. 4 Document width sensor Detects the document width. 5 Pickup roller Picks up documents. 6 Paper feed roller Feeds and transports documents. 7 Paper entry sensor (PAPER) Detects transport of documents. 8 PS roller Makes synchronization between the document lead edge and the image lead edge.

9 PS follower roller Makes synchronization between the document lead edge and the image lead edge. 10 Transpor t roller 2 Transports documents. 11 Transpor t follower roller 2 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 reverse path. 16 Paper exit gate Separate document exit to the intermediate or the paper exit tray. 17 Intermediate tray Discharges documents to the intermediate tray during document reverse. 18 Transpor t roller 1 Transports documents. 19 Transpor t follower roller 1 Transports documents.

AR-RP7 OPEREATIONAL DESCRIPTIONS

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2. Out line of operations

[Duplex documents]

1) Document set (Document set senso r ON)

2) Document size detection (Document width sensors SWD the document width, and document length sensors L1, L2 detect the document length.)

3) Copier COPY key ON

4) RSPF motor ON

5) DFCL ON

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 intermediate tray.)

13) Reverse gate falls down.

14) Paper exit roller reverse rotation

(Documents are fed to the reverse path.)

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 intermediate tray.)

21) Reverse gate falls down.

22) Paper exit roller reverse rotation

(Documents are fed to the reverse path.)

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 3 (YES) 3 Go to 4).

4 (NO)

29) R SPF motor OFF

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 selection

mode of paper/copy magnification ratio, the document size is detect ed 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 (SWD), and the document length is detected by the document length sensors (L1, L2) to identify the document size. Judgment of the document size is made in a certain timing after detecting the document with the document set sensor (EMPS).

Document set size and

set direction

A5 nn B5 nn

A5R nn

A4 nn

AB series

Inch series

Note: Detection sensor ON: o, OFF: n

B5R on A4R on

8.5” x 13” oo B4 oo A3 oo

8.5” x 5.5” nn

8.5” x 5.5”R nn 11” x 8.5” nn

11” x 8.5”R on

8.5” x 13” oo

8.5” x 14” oo

11” x 17” oo

Document length sensor

L1 L2

AR-RP7 OPEREATIONAL DESCRIPTIONS

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[6] ADJUSTMENTS

(1)RSPF auto white correction pixel

adjustment

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

This adjustment is performed after the lens unit is replaced. [Operation]

(Initial screen)

SIMULATION 63-7 SHADING POSITION ADJUSTMENT. PRESS START.

Press the [START] key.

(During execution)

SIMULATION 63-7 SHADING POSITION ADJUSTMENT. EXECUTING...

Normal end Abnormal end

(Initial screen with the execution result displayed)

SIMULATION 63-7

SHADING POSITION ADJUSTMENT. COMPLETE. [160]

SIMULATION 63-7 SHADING POSITION ADJUSTMENT. ERROR. [ 0]

(2) RSPF magnification ratio adjustment

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

properly installed.

• When performing this adjustment, check that the OC mode adjustment in copying is completed.

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

Open the SPF unit and press the [START] 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.

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

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

6) Enter the set value, and press the START key. The entered correction value is stored and a copy is made.

7) Change the TEXT mode. The TEXT lamp lights up, and the current correction value of the back surface sub scanning direction magnification ratio is displayed on the display section in two digits.

8) Enter the set value, and press the START key. The entered correction value is stored and a copy is made.

Mode Spec SIM Set value

Magnification ratio adjustment

Normal:

m 1.0%

SIM 48-5 3: Surface 4: Back

Add 1: Reduce 1:

0.1% increase

0.1% decrease

Set

range

1 ~ 99

(3) RSPF document off center adjustment

Note: When performing this adjustment, check that t he paper off-cen-

ter is properly adjusted.

1) Set the center position adjustment test chart (made by yourself) on the RSPF.

Draw a line in the center of paper. (In the scanning direction)

2) Make a normal copy from the manual feed tray, and compare t he copy and the test chart. If an adjustment is required, perform the following procedures.

3) Execute SIM 50-12.

4) The current off-center adjustment value is displayed on the display section in two digits.

5) Enter the set value and press the START key. The entered correction value is started and a copy is made.

Mode Specification SIM Set value

Document off-center

Simplex:

Center

Duplex:

Center

3.0mm

3.5mm

SIM 50-12 2: SPF surface 4: SPF back

Add 1:

0.1mm shifted to R side.

Reduce 1:

0.1mm shifted to L side.

Set

range

1 ~ 99

Note: Since the copy is used as the test chart, place the scale

in parallel to the front edge of the copy glass.

2) Set the test chart to the RSPF 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 48-5.

5) The current correction value is displayed on the display section in two digits.

AR-RP7 ADJUSTMENTS

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(4) RSPF image lead edge position adjustment

1) Set a scale on the OC table as shown below.

Note: Since the printed paper is used as the test chart, place the

scale in parallel to the front edge of the copy glass.

2) Make a copy, and use the copied paper as the document and make a copy from RSPF again.

3) Check the copied paper. If an adjustment is required, perform the following procedures.

4) Execute SIM 50-6.

5) Set the RSPF lead edge position set value so that the image similar to the adjusted image at the OC image lead edge position described previously is printed.

Adjustment

mode

Image lead edge position

SIM Set value Specification

SIM 50-6 1step: 0.1mm shift Lead edge void:

1 ~ 4mm

Image loss:

3mm or less

Set

range

1 ~ 99

3) Check that the lead edge is not shifted. (Both surfaces) (If the precedent lead edge adjustment was complete, the lead edge follows automatically after changing the scan position.)

For the SPF standard

Place no other things than the black chart on the glass.

machine, check that the SPF glass is covered completely by the black chart.

(5) SPF scan position automatic adjustment

The SPF scan position is automatically adjusted.

1) With the SPF or the OC cover open, place a black background chart on the OC glass. (The SPF standard model includes the SPF glass surface.)

* Use a black chart UKOG-0011QSZZ, or make a chart as shown

below and use it.

Chart size: 310 x 470

Use a cutting sheet No. 791 (Black) or an equivalent for making a chart.

Reason: To protect against erroneous detection caused by dis-

turbed lights of fluorescent lamps, etc.

2) Enter SIM 53-08, and press the COPY button. Outline of SIM: The optical unit is moved to recognize the boundary

between the OS glass and the SPF glass. The SPF scan position is automatically adjusted with the boundary position as the reference.

Caution:

• A fter completion of the SPF scan position automatic adjustment, perform the SPF lead edge adjustment (both surfaces).

• Place no other things than the black chart on the glass.

How to place the black chart

Cover this area.

• Since SPF scan is made around the center in the main scanning direction, take care not to allow external lights to enter the section.

AR-RP7 ADJUSTMENTS

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+ 28 hidden pages