Sharp MX-3501N Service Manual
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Sharp MX-3501N Service Manual

Sharp MX-3501N Service Manual

Digital full color multifunctional system duplex single pass feeder
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[1]
PRODUCT OUTLINE . . . . . . . . . . . . . . . . .1-1
[2]
SPECIFICATIONS . . . . . . . . . . . . . . . . . . .2-1
[3]
functions . . . . . . . . . . . . . . . . . . . . . . . .3-1
[4]
1. Document size detection . . . . . . . . . . .4-1
2. Timing chart . . . . . . . . . . . . . . . . . . . . .4-1
[5]
1. Exterior section . . . . . . . . . . . . . . . . . . .5-1
2. Paper feed section . . . . . . . . . . . . . . . .5-2
3. Upper transport section . . . . . . . . . . . .5-6
4. Lower transport section . . . . . . . . . . . .5-8
5. Optical section . . . . . . . . . . . . . . . . . .5-12
6. Paper exit section . . . . . . . . . . . . . . . .5-16
7. Drive section . . . . . . . . . . . . . . . . . . . .5-17
8. Others . . . . . . . . . . . . . . . . . . . . . . . . .5-19
[6]
1. Maintenance system table . . . . . . . . . .6-1
[7]
1. Levelness adjustment . . . . . . . . . . . . . .7-1
(front surface mode) . . . . . . . . . . . . . . .7-1
(back surface mode) . . . . . . . . . . . . . . .7-2
(front surface mode) . . . . . . . . . . . . . . .7-3
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.
SERVICE MANUAL
DIGITAL FULL COLOR
MULTIFUNCTIONAL SYSTEM
DUPLEX SINGLE PASS FEEDER
(DSPF)
MODEL
CONTENTS
[8]
[9]
WWW.SERVICE-MANUAL.NET
SHARP CORPORATION
CODE: 00ZMX3501/S1E
MX-3501N
MX-4501N
(back surface mode) . . . . . . . . . . . . . . 7-3
(front surface mode) . . . . . . . . . . . . . . 7-4
(back surface mode) . . . . . . . . . . . . . . 7-4
adjustment . . . . . . . . . . . . . . . . . . . . . . 7-6
feed tray adjustment . . . . . . . . . . . . . . 7-7
15. Shading adjustment . . . . . . . . . . . . . . . 7-9
(CCD calibration) . . . . . . . . . . . . . . . . 7-10
SELF DIAG AND TROUBLE CODE
diagram . . . . . . . . . . . . . . . . . . . . . . . . 9-1
2. Block diagram . . . . . . . . . . . . . . . . . . . 9-4
3. Actual wiring chart . . . . . . . . . . . . . . . . 9-5
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

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  • Page 1: Table Of Contents

    SERVICE MANUAL CODE: 00ZMX3501/S1E DIGITAL FULL COLOR MULTIFUNCTIONAL SYSTEM DUPLEX SINGLE PASS FEEDER (DSPF) MX-3501N MX-4501N MODEL CONTENTS PRODUCT OUTLINE ....1-1 5. Image focus adjustment (back surface mode) .

  • Page 2: Product Outline

    4-hole (broad space) (MX-PNX1D) Exit tray unit Paper pass unit (MX-TRX2) (MX-RBX1) Copier/Printer Staple cartridge /Scanner model (Approx. 5000 x 3) (MX-3501N) (AR-SC2) (MX-4501N) Punch module 2-hole (AR-PN1A) Saddle stitch finisher Stand/1x500 sheet Stand/2x500 sheet Large capacity tray 3-hole (AR-PN1B)

  • Page 3: Specifications

    [2] SPECIFICATIONS MX3501N Service Manual Form DSPF (Duplex single pass feeder) Scan speed Monochrome (A4/8.5 x 11) Color (A4/8.5 x 11) Copy 1-sided: 45 sheets/minute (600 x 300dpi, 1bit) 1-sided: 35 sheets/minute (600 x 600dpi, 4bit) 2-sided: 60 pages/minute (600 x 300dpi, 1bit) 2-sided: 35 pages/minute (600 x 600dpi, 4bit) 1-sided: 60 sheets/minute (200 x 200dpi, 1bit) 2-sided: 60 pages/minute (200 x 200dpi, 1bit)

  • Page 4: External View And Internal Structure

    [3] EXTERNAL VIEW AND INTERNAL STRUCTURE MX3501N Service Manual 1. Identification of each section and functions A. Internal structure Name Function/ Operation Pickup roller Picks up a document and feeds it to the paper feed roller. Paper feed roller Performs the paper feed operation of documents. Separation roller Separate a document to prevent against double-feed.

  • Page 5: Sensors, Switches

    B. Sensors, switches 16 17 Signal Name Type Function/Operation Active condition name SPPD2 DSPF paper pass sensor 2 Transmission type Detects pass of the paper. L when paper is detected. SPPD1 DSPF paper pass sensor 1 Transmission type Detects pass of the paper. L when paper is detected.
  • Page 6 C. Motors, clutches, solenoids, PWB and lamps Signal name Name Type Function/Operation SPUM DSPF paper feed motor Hybrid step motor Drives the rollers, transport rollers and transport rollers in the paper feed section. SPFM DSPF transport motor Hybrid step motor Drives the transport roller.

  • Page 7: Operational Descriptions

    [4] OPERATIONAL DESCRIPTIONS MX3501N Service Manual 1. Document size detection Size detection on the document tray The document size is detected by the DSPF document width sensor (SPWS), and the document length is detected by the DSPF document length sensors (SPLS1, SPLS2). The document size is judged from the document width and the document length as shown in the table below. When, however, documents of different sizes are mixed and set on the document tray, the largest size is detected.

  • Page 8: Disassembly And Assembly

    [5] DISASSEMBLY AND MX3501N Service Manual Open the DSPF unit to put it straight up, and remove the screw. ASSEMBLY 1. Exterior section A. DSPF unit Remove the upper cabinet rear cover lid. Remove the screw, and remove the upper cabinet rear cover. Remove the screw, and remove the earth line.

  • Page 9: Paper Feed Section

    (4) Upper door Remove the pawl, and remove the front cabinet. Remove the front cabinet. (Refer to "1. Exterior section - A. DSPF unit - (1) Front cabinet.") Remove the spring. Remove the pawl. Remove the pressure release axis holder. Remove the screw. Remove the pressure release link lever.
  • Page 10 (1) DSPF document length detection short sensor Remove the screw, and remove the rotation tray shaft. Remove the paper feed rotation tray. (2) DSPF document length detection long sensor Remove the front cabinet. (Refer to "1. Exterior section - A. DSPF unit - (1) Front cabinet.") Remove the rear cabinet.
  • Page 11 Remove the screw, and remove the paper feed unit. Remove the screw, and remove the paper feed PG lower cover. (1) Pickup roller Disengage the pawl, and remove the reverse pressure release (2) Paper feed roller lever. Remove the separation roller. (3) Separation roller Remove the paper feed cover.
  • Page 12 Disconnect the connector, and remove the DSPF paper feed Remove the E-ring and the bearing. Lift the paper feed roller tray upper limit sensor (a), the DSPF document upper limit shaft diagonally, and remove the DSPF paper feed clutch. sensor (b), the DSPF upper door open/close sensor (c), the * When assembling, check to insure that the clutch rotation stop- DSPF paper pass sensor 1 (d), and the DSPF document ran- per is engaged with the plate.

  • Page 13: Upper Transport Section

    3. Upper transport section Remove the screw, and remove the separation roller support- ing plate and the bearing. Remove the roller shaft, and remove A. DSPF No.1 resist roller brake clutch the torque limiter. B. DSPF No.1 resist roller clutch Remove the rear cabinet.
  • Page 14 D. No.1 resist roller (Drive) Remove the E-ring and the bearing from the No.1 resist roller (drive). Remove the front cabinet. (Refer to "1. Exterior section - A. DSPF unit - (1) Front cabinet.") Remove the rear cabinet. (Refer to "1. Exterior section - A. DSPF unit - (2) Rear cabinet.") Remove the paper feed unit.

  • Page 15: Lower Transport Section

    C. DSPF No.2 resist roller brake clutch Remove the DSPF transport roller clutch. (Refer to "3. Upper transport section - C. DSPF transport roller clutch.") D. DSPF No.2 resist roller clutch Remove the E-ring, the washer, the spring, the collar, the poly- Remove the rear cabinet.
  • Page 16 Loosen the screw, and lower the angle adjustment plate. Open 10) Remove the screw and the connector, and remove the DSPF the DSPF unit. paper pass sensor 3. Remove the screw, and remove the left rear lower cabinet. 11) Remove the screw, and remove the lift-up PG. Remove the resin E-ring, and remove the PS knob.
  • Page 17 14) Remove the DSPF No.2 resist roller brake clutch and the Remove the screw, and remove the lift-up PG. DSPF No.2 resist roller clutch. (Refer to "4. Lower transport section - C. DSPF No.2 resist roller brake clutch, D. DSPF No.2 resist roller clutch.") 15) Remove the DSPF cooling fan motor.
  • Page 18 J. Transport roller 3 (drive) Remove the DSPF No.1 resist roller brake clutch and the DSPF No.1 resist roller clutch. (Refer "3. Upper transport sec- Remove the front cabinet. (Refer to "1. Exterior section - A. tion - A. DSPF No.1 resist roller brake clutch - B. DSPF No.1 DSPF unit - (1) Front cabinet.") resist roller clutch.") Remove the rear cabinet.

  • Page 19: Optical Section

    Loosen the screw, and loosen the belt tension. Tighten the Remove the screw, and remove the intersecting point plate. screw. Remove the belt. Remove the lower door. 10) Remove the resin E-ring and the bearing. Remove the trans- port roller 3 (drive). Remove the E-ring, the pulley, the spring pin, and the bearing from the transport roller 3 (drive).
  • Page 20 (1) Scanning glass Remove the front cabinet. (Refer to "1. Exterior section - A. DSPF unit - (1) Front cabinet.") (2) DSPF copy lamp Remove the rear cabinet. (Refer to "1. Exterior section - A. (3) Reflector DSPF unit - (2) Rear cabinet.") Remove the OC mat.

  • Page 21: Optical Unit

    B. Optical unit (1) Lens Remove the front cabinet. (Refer to "1. Exterior section - A. (2) CCD DSPF unit - (1) Front cabinet.") Remove the front cabinet. (Refer to "1. Exterior section - A. Remove the rear cabinet. (Refer to "1. Exterior section - A. DSPF unit - (1) Front cabinet.") DSPF unit - (2) Rear cabinet.") Remove the rear cabinet.
  • Page 22 (3) CCD unit (4) Mirror Remove the front cabinet. (Refer to "1. Exterior section - A. Remove the front cabinet. (Refer to "1. Exterior section - A. DSPF unit - (1) Front cabinet.") DSPF unit - (1) Front cabinet.") Remove the rear cabinet. (Refer to "1. Exterior section - A. Remove the rear cabinet.

  • Page 23: Paper Exit Section

    Disconnect the connector, and remove the screw. Remove the Use the cleaner to clean the white reference glass. inverter PWB guide. Remove the screw, and remove the DSPF CL inverter PWB. 6. Paper exit section A. Discharge brush Remove the front cabinet. (Refer to "1. Exterior section - A. DSPF unit - (1) Front cabinet.") Remove the rear cabinet.

  • Page 24: Drive Section

    C. Paper exit roller (drive) Remove the screw, and remove the drive unit. Remove the front cabinet. (Refer to "1. Exterior section - A. DSPF unit - (1) Front cabinet.") Remove the rear cabinet. (Refer to "1. Exterior section - A. DSPF unit - (2) Rear cabinet.") Remove the paper feed tray unit.
  • Page 25 (1) DSPF transport motor (3) DSPF lift-up motor Remove the rear cabinet. (Refer to "1. Exterior section - A. Remove the rear cabinet. (Refer to "1. Exterior section - A. DSPF unit - (2) Rear cabinet.") DSPF unit - (2) Rear cabinet.") Loosen the screw, and loosen the belt tension.

  • Page 26: Others

    8. Others C. DSPF lower door open/close sensor Remove the front cabinet. (Refer to "1. Exterior section - A. A. OC mat DSPF unit - (1) Front cabinet.") Open the DSPF unit, and remove the OC mat from the left Disconnect the connector, and remove the screw.
  • Page 27 Release the lock, and remove the DSPF flash PWB. F. DSPF control PWB Remove the rear cabinet. (Refer to "1. Exterior section - A. DSPF unit - (2) Rear cabinet.") Remove the DSPF flash PWB. (Refer to "8. Others - E. DSPF flash PWB.") Disconnect the connector, and remove the screw.

  • Page 28: Maintenance

    [6] MAINTENANCE MX3501N Service Manual 1. Maintenance system table : Check (Clean, replace, or adjust according to necessity.) : Clean : Replace : Adjust : Lubricate : Shift the position. Main unit Part name When calling Remarks maintenance cycle Paper feed Paper feed roller Replacement reference: 100K or 1 year section/...

  • Page 29: Adjustments

    [7] ADJUSTMENTS MX3501N Service Manual After adjustments of A and B, check to insure that the projec- tion on the front right side is in contact with the glass surface of the main unit. 1. Levelness adjustment This adjustment is needed in the following situations: * The DSPF section has been disassembled.

  • Page 30: Skew Adjustment (Back Surface Mode)

    [Check Method 2] [When the main scanning direction print line is shifted to the left] Check that the squareness of the main scanning direction print line for the longitudinal direction of paper is within If a < b, then turn counterclockwise the DSPF skew 1.0mm.

  • Page 31: Image Focus Adjustment (Front Surface Mode)

    [Check Method 2] [When the main scanning direction print line is shifted to the left] Check that the squareness of the main scanning direction print line for the longitudinal direction of paper is within If c < d, turn the DSPF skew adjustment screw A 1.0mm.

  • Page 32: Image Magnification In The Main Scanning Direction Adjustment (Front Surface Mode)

    Loosen the CCD unit fixing screws (4 pcs.). * Images are not correctly magnified in the main scanning direc- tion. On the DSPF original tray, place such an original as illustrated below. Paper pass direction A4 size * Never loosen the screws marked with (both sides) Loosening these screws could possibly change the CCD 10mm...

  • Page 33: Scanned Image Off-Center Adjustment (Front Surface Mode)

    * The EEPROM on the scan control PWB has been replaced. Enter the simulation 48-1 mode. * When a U2 trouble occurs. On the DSPF original tray, place such an original as illustrated CLOSE SIMULATION NO.48 05 TEST below. MOTOR SPEED ADJUSTMENT MR(HI) 10mm MR(MID)

  • Page 34: Original Scan Position Adjustment

    Using the scroll key, select the adjustment item DSPF SIDE1, Make a copy in DSPF (front surface) mode, and make sure which is intended to adjust the off-center in DSPF back surface that the printed image at the leading edge of the copied image mode.

  • Page 35: Paper Width Sensor For The Paper Feed Tray Adjustment

    Enter the simulation 50-6 mode. Repeat the process of changing the (SIDE1 & SIDE2) adjust- ment values and then pressing the [START] key until attaining an acceptable level. SIDE1: Adjustment value for the position at which to read the SIMULATION NO.50 06 CLOSE TEST leading edge of the original in DSPF front side mode.

  • Page 36: Auto Void Adjustment (Service Installation Adjustment)

    Open the DSPF paper feed guide to the maximum width posi- Enter the simulation mode 50-28 to select [SPF ADJ]. tion. CLOSE SIMULATION NO.50 28 TEST AUTO IMAGE POSITION ADJUSTMENT SERVICE OC ADJ BK-MAG ADJ SPF ADJ SETUP/PRINT ADJ RESULT DATA Select an adjustment item (front, back, both).

  • Page 37: Shading Adjustment

    15. Shading adjustment Load the SPF adjustment pattern on the DSPF. Fold 2 or 3 sheets of A3 paper (recommendable paper for color copy) as shown below. 320mm 279mm 15mm Press [EXECUTE] key, and scanning of the SPF adjustment pattern selected in step 2) is started. Open the lower door, place the folded sheets of paper as CLOSE SIMULATION NO.50 28...

  • Page 38: Ccd Gamma Adjustment (Ccd Calibration)

    B. Adjustment procedures When [EXECUTE] button is pressed, it is highlighted and shading is started. Set the SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1) * During execution, "SHADING EXECUTING..." is displayed. face-down in the DSPF paper feed tray. * When [EXECUTE] button is pressed during execution, the operation is interrupted.
  • Page 39 When [DSPF] button is pressed, it is highlighted, and the color * When the operation is completed normally, "COMPLETE" is dis- automatic adjustment execution screen is displayed. played. When [RESULT] button is pressed, the display returns to the initial screen. (The calculation result of normal completion is displayed.) CLOSE SIMULATION NO.63 03...

  • Page 40: Trouble Code And Troubleshooting

    [8] SELF DIAG AND TROUBLE MX3501N Service Manual U5-16 SPF fan motor trouble CODE Trouble content The motor lock signal is detected during rotation of the fan. 1. Trouble code and troubleshooting Section Scanner Case 1 Cause Fan motor trouble,harness of the fan motor related, circuit trouble E6-10 Back-face shading trouble (black...

  • Page 41: Electrical Section

    [9] ELECTRICAL SECTION MX3501N Service Manual 1. Electrical and mechanism relation diagram A. Paper feed section DSPF CNT PWB DRIVER PWB SPUM SPFC SCOV SLUM SPPD1 SPED1 STUD SPRDMD SPED2 STLD SPLS1 SPWS SPLS2 WWW.SERVICE-MANUAL.NET MX3501N ELECTRICAL SECTION 9 – 1...
  • Page 42 B. Upper transport section DSPF CNT PWB CN608 D_SOCD 5V(sensor) D_ROCD 5V(sensor) 1 SGND D_SPPD2 D_SPPD2 3 5V B3B-PH-K-S D_SPPD3 D_SPPD4 D_SPPD5 DRIVER PWB B18B-PHDSS-B STRC STRRBC SPUM SPPD2 C. Lower transport section DRIVER PWB SPFM DSPF CNT PWB SRRBC SRRC SPPD3 SPPD5...
  • Page 43 D. Optical section DSPF COPY LUMP PGND DSPFCNT PGND CL-INV-R CN130 LAMP LAMP PGND PGND PGND PGND 5597-05CPB7F E. Peper exit section DSPFCNT PWB CN 609 SGND SGND D_SPFFAN D_SPFFAN SGND SGND D_SPPD1 D_SPPD1 D_RANDOM D_RANDOM D_SOCV D_SOCV D_SPOD D_SPOD D_SPU M_INA D_SPU M_INA D_SPU M_IN/A...

  • Page 44: Block Diagram

    2. Block diagram DSPF UNIT OPTION SRRC SRRBC STRC STRRBC STRRC STUD STLD SPLS1 SPED1 STMPS SPFFAN SPOM SPFM SPUM SPFC SLUM SPLS2 SPED2 SPPD5 SPPD4 SPPD3 SPPD2 SPOD SPPD1 SPRANDOM SCOV DSPF DRIVER PW B CL INVERTER SOCD PW B ROCD DSPFcntPW B DSPF MEMORY PWB...

  • Page 45: Actual Wiring Chart

    3. Actual wiring chart A. DSPF_CNT_PWB section 1/2 WWW.SERVICE-MANUAL.NET MX3501N ELECTRICAL SECTION 9 – 5...
  • Page 46 B. DSPF_CNT_PWB section 2/2 WWW.SERVICE-MANUAL.NET MX3501N ELECTRICAL SECTION 9 – 6...
  • Page 47 C. DRIVER_PWB WWW.SERVICE-MANUAL.NET MX3501N ELECTRICAL SECTION 9 – 7...
  • Page 48 Memo WWW.SERVICE-MANUAL.NET...
  • Page 49 Memo WWW.SERVICE-MANUAL.NET...

  • Page 50: Lead-Free Solder

    LEAD-FREE SOLDER The PWB’s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean “Lead-Free” solder. The alphabet following the LF mark shows the kind of lead-free solder. Example: <Solder composition code of lead-free solder> Solder composition Solder composition code Solder composition...
  • Page 51 CAUTION FOR BATTERY REPLACEMENT (Danish) ADVARSEL ! Lithiumbatteri – Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til leverandoren. (English) Caution ! Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer.

  • Page 52: Trademark Acknowledgements

    COPYRIGHT © 2006 BY SHARP CORPORATION All rights reserved. Printed in Japan. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic; mechanical; photocopying; recording or otherwise without prior written permission of the publisher.

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