Konica Minolta DF-612 Service Manual
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Konica Minolta DF-612 Service Manual

Konica Minolta DF-612 Service Manual

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DF-612 SP-503 MS-501
SERVICE MANUAL
Code Y109850-7

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Summary of Contents for Konica Minolta DF-612

  • Page 1 Option Printer DF-612 SP-503 MS-501 SERVICE MANUAL Code Y109850-7...
  • Page 2 PUBLICATION ISSUED BY: Olivetti S.p.A. 77, Via Jervis - 10015 Ivrea (TO) Italy Copyright © 2008, Olivetti All rights reserved...

  • Page 3: Revision History

    Revision history After publication of this service manual, the parts and mechanism may be subject to change for improvement of their performance. Therefore, the descriptions given in this service manual may not coincide with the actual machine. When any change has been made to the descriptions in the service manual, a revised version will be issued with a revision mark added as required.

  • Page 4: Table Of Contents

    Field Service Ver. 1.0 Jun. 2008 CONTENTS DF-612/SP-503/MS-501 Outline Product specification ....................1 Maintenance Periodical check ...................... 5 Maintenance procedure (Periodical check parts) ..........5 2.1.1 Separation roller.................... 5 2.1.2 Feed roller/pick-up roller ................8 2.1.3 Regist rollers/exit rollers................9 Other ........................
  • Page 5 Field Service Ver. 1.0 Jun. 2008 Adjustment/Setting How to use the adjustment section ............... 33 Service Mode ......................34 Service Mode setting procedure................. 34 ADF Adjustment ....................34 5.2.1 Zoom......................34 5.2.2 Feed......................35 5.2.3 Regist Loop....................37 5.2.4 Erasure Width ..................... 37 5.2.5 Paper Passage ...................

  • Page 6: Outline

    Field Service Ver. 1.0 Jun. 2008 1. Product specification Outline Product specification A. Type Name Reverse automatic document feeder Type Image reading section Sheet-through system Turnover section Switchback system Exit section Straight exit system Installation Screw cramp to the main unit Document alignment Center Document loading...
  • Page 7 1. Product specification Field Service Ver. 1.0 Jun. 2008 D. Paper feed prohibited originals • If fed, trouble occurrence will be highly possible. Type of original Possible trouble Sheets stapled or clipped together Paper feed failure, damaged sheet, defective drive mechanism due to jammed staples or clips Book original Paper feed failure, damaged sheet...
  • Page 8 Field Service Ver. 1.0 Jun. 2008 1. Product specification F. Mixed original feed chart For metric Max. original 297 mm 257 mm 210 mm 182 mm 148 mm size Mixed original size 297 mm 257 mm 210 mm 182 mm 148 mm For inch Max.
  • Page 9 1. Product specification Field Service Ver. 1.0 Jun. 2008 Blank Page Service Manual Y109850-7...

  • Page 10: Maintenance

    Field Service Ver. 1.0 Jun. 2008 2. Periodical check Maintenance Periodical check Maintenance procedure (Periodical check parts) NOTE • The alcohol described in the cleaning procedure of maintenance represents the isopropyl alcohol. 2.1.1 Separation roller A. Periodically cleaning parts/cycle • Separation roller: Every 30,000 originals feed B.
  • Page 11 2. Periodical check Field Service Ver. 1.0 Jun. 2008 D. Replacing procedure 1. Pull the lever [1] to open the feed cover [2]. 2. Raise the knob [3] and open the doc- ument guide [4]. A0EYF2C511DA 3. Unhook the tab [1] and remove the two arms [2].
  • Page 12 Field Service Ver. 1.0 Jun. 2008 2. Periodical check 5. Remove two screws [1] and the plate [2]. 6. Remove two springs [3], two bearing splits [4], and the separator roller [5]. A0EYF2C003DA Y109850-7 Service Manual...

  • Page 13: Feed Roller/Pick-Up Roller

    2. Periodical check Field Service Ver. 1.0 Jun. 2008 2.1.2 Feed roller/pick-up roller A. Periodically cleaning parts/cycle • Feed roller: Every 30,000 originals feed • Pick-up roller: Every 30,000 originals feed B. Cleaning procedure 1. Open the feed cover [1]. A0EYF2C500DA 2.

  • Page 14: Regist Rollers/Exit Rollers

    Field Service Ver. 1.0 Jun. 2008 2. Periodical check 2.1.3 Regist rollers/exit rollers A. Periodically cleaning parts/cycle • Regist rollers: Every 30,000 originals feed • Exit rollers: Every 30,000 originals feed B. Cleaning procedure 1. Open the feed cover [1]. A0EYF2C500DA 2.

  • Page 15: Other

    3. Other Field Service Ver. 1.0 Jun. 2008 Other Disassembly/adjustment prohibited items A. Paint-locked screws NOTE • To prevent loose screws, a screw lock in blue or green series color is applied to the screws. • The screw lock is applied to the screws that may get loose due to the vibrations and loads created by the use of machine or due to the vibrations created during transportation.

  • Page 16: Disassembly/Assembly/Cleaning List (Other Parts)

    Field Service Ver. 1.0 Jun. 2008 3. Other Disassembly/Assembly/Cleaning list (other parts) 3.2.1 Disassembly/Assembly parts list Section Part name Ref. page Front cover P.12 Exterior parts Rear cover/Rear left cover/Rear lower cover P.13 Document feed tray rear cover P.14 Auto document feeder unit P.15 Units Document feed tray...

  • Page 17: Disassembly/Assembly Procedure

    3. Other Field Service Ver. 1.0 Jun. 2008 Disassembly/Assembly procedure 3.3.1 Front cover 1. Open the auto document feeder unit. 2. Remove three screws [1]. A0EYF2C005DA 3. Close the auto document feeder unit. 4. Open the feed cover [1]. A0EYF2C500DA 5.

  • Page 18: Rear Cover/Rear Left Cover/Rear Lower Cover

    Field Service Ver. 1.0 Jun. 2008 3. Other 6. Remove the screw [1]. 7. Push to remove the three tabs [2] and then remove the front cover [3]. A0EYF2C007DA 3.3.2 Rear cover/Rear left cover/Rear lower cover 1. Open the feed cover [1]. A0EYF2C500DA 2.

  • Page 19: Document Feed Tray Rear Cover

    3. Other Field Service Ver. 1.0 Jun. 2008 3. Remove five screws [1], and remove the rear cover [2]/rear left cover [3]. A0EYF2C505DA 4. Remove three screws [1], and remove the rear lower cover [2]. A0EYF2C008DA 3.3.3 Document feed tray rear cover 1.

  • Page 20: Auto Document Feeder Tray

    Field Service Ver. 1.0 Jun. 2008 3. Other 3.3.4 Auto document feeder tray 1. Open the auto document feeder unit. 2. Remove six screws [1], and remove the rear cover [2] of the main body. A0EYF2C503DA 3. Remove the screw [1], and remove the cover [2].

  • Page 21: Document Feed Tray

    3. Other Field Service Ver. 1.0 Jun. 2008 6. Remove two screws [1], and remove the auto document feeder unit [2]. A0EYF2C507DA 3.3.5 Document feed tray 1. Remove the front cover. See P.12 2. Remove the rear cover/rear left cover. See P.13 3.

  • Page 22: Adf Scanner Assy

    Field Service Ver. 1.0 Jun. 2008 3. Other 3.3.6 ADF scanner assy 1. Remove the front cover. See P.12 2. Remove the rear cover/rear left cover/ rear lower cover. See P.13 3. Remove the document feed tray. See P.16 4. Remove the cooling fan. See P.27 5.
  • Page 23 3. Other Field Service Ver. 1.0 Jun. 2008 8. Remove two screws [1] and the bracket support [2]. A0EYF2C016DA 9. Remove three shoulder screws [1], three screws [2], and the ADF scanner assy [3]. NOTE • At reinstallation, note that the screw [2] (M3x14) at the position indicated by the arrow differs from the other two screws (M3x16).

  • Page 24: Feed Roller/Pick-Up Roller

    Field Service Ver. 1.0 Jun. 2008 3. Other 3.3.7 Feed roller/pick-up roller 1. Open the feed cover [1]. A0EYF2C500DA 2. Remove two screws [1]. 3. Unhook two tabs [2], remove the feed cover [3]. A0EYF2C017DA 4. Unhook the spring [1]. A0EYF2C018DA Y109850-7 Service Manual...
  • Page 25 3. Other Field Service Ver. 1.0 Jun. 2008 5. Unhook two tabs [1], and remove two lock levers [2]. 6. Remove the knob [3]. A0EYF2C019DA 7. Remove the screw [1], and remove the sensor holder [2]. A0EYF2C020DA 8. Snap off the E-ring [1] at the front. A0EYF2C021DA Service Manual Y109850-7...
  • Page 26 Field Service Ver. 1.0 Jun. 2008 3. Other 9. Snap off the E-ring [1] in the rear. 10. Disconnect the connector [2], remove the clutch [3] and gear [4]. A0EYF2C022DA 11. Remove the screw [1], and remove the ground terminal [2]. A0EYF2C023DA 12.
  • Page 27 3. Other Field Service Ver. 1.0 Jun. 2008 13. Remove the spring [1]. A0EYF2C025DA 14. Slide the shaft [1] toward the rear and then slide it to the front. Then, remove the feed roller/pick-up roller assy [2] from the frame top. A0EYF2C026DA 15.

  • Page 28: Transport Roller 1, 2

    Field Service Ver. 1.0 Jun. 2008 3. Other 16. Remove two E-rings [1], and remove the shaft [2], and remove the pick-up roller [3]. A0EYF2C028DA 3.3.8 Transport roller 1, 2 1. Remove the ADF scanner assy. See P.17 2. Remove two screws [1], and remove the bottom cover [2]. 3.

  • Page 29: Df Control Board (Dfcb)

    3. Other Field Service Ver. 1.0 Jun. 2008 3.3.9 DF control board (DFCB) 1. Remove the rear cover. See P.13 2. Disconnect ten connectors. A0EYF2C029DA 3. Remove four screws [1], and remove the DF control board [2]. A0EYF2C030DA 3.3.10 Print lamp board (PLB) 1.

  • Page 30: Take-Up Motor (M1)

    Field Service Ver. 1.0 Jun. 2008 3. Other 3.3.11 Take-up motor (M1) 1. Remove the ADF scanner assy. See P.17 2. Remove two screws [1], disconnect the connector [2] and remove the take-up motor assy [3]. A0EYF2C032DA 3. Remove two screws [1], and remove the take-up motor [2].
  • Page 31 3. Other Field Service Ver. 1.0 Jun. 2008 3. Disconnect the connector [1]. A0EYF2C035DA 4. Remove two screws [1], and remove the transport motor assy [2]. A0EYF2C036DA 5. Remove two screws [1], and remove the transport motor [2]. A0EYF2C037DA Service Manual Y109850-7...

  • Page 32: Cooling Fan (Fm1)

    Field Service Ver. 1.0 Jun. 2008 3. Other 3.3.13 Cooling fan (FM1) 1. Remove the rear cover/rear left cover/ rear lower cover. See P.13 2. Disconnect the connector (CN10) [1] of the DF control board. A0EYF2C038DA 3. Remove the harness from three wire saddles [1].

  • Page 33: Stamp Unit

    3. Other Field Service Ver. 1.0 Jun. 2008 6. Remove two screws [1], and remove the cooling fan [2]. A0EYF2C041DA 3.3.14 Stamp unit 1. Open the auto document feeder unit. 2. Peel off the document pad [1] from the auto document feeder unit. NOTE •...

  • Page 34: Spare Tx Marker Stamp 2

    Field Service Ver. 1.0 Jun. 2008 3. Other 3. Remove the cover [1]. A0EYF2C509DA 4. Remove the screw [1], disconnect the hookup connector [2] and remove the stamp unit [3]. A0EYF2C510DA 3.3.15 Spare TX Marker Stamp 2 1. Pull the lever [1] to open the feed cover [2].

  • Page 35: Cleaning Procedure

    3. Other Field Service Ver. 1.0 Jun. 2008 3. Using tweezers, remove the stamp cartridge [1]. A0EYF2C512DA Cleaning procedure NOTE • The alcohol described in the cleaning procedure of maintenance represents the isopropyl alcohol. 3.4.1 White sheet 1. Open the auto document feeder unit. 2.

  • Page 36: Black Sheet (Adf Glass Assy)

    Field Service Ver. 1.0 Jun. 2008 3. Other 3.4.3 Black sheet (ADF glass assy) 1. Open the auto document feeder unit. 2. Clean the black sheet [2] with the cleaner [1]. A0EYF2C513DA Y109850-7 Service Manual...

  • Page 37: Field Service Ver. 1.0 Jun

    3. Other Field Service Ver. 1.0 Jun. 2008 Blank Page Service Manual Y109850-7...

  • Page 38: Adjustment/Setting

    Field Service Ver. 1.0 Jun. 2008 4. How to use the adjustment section Adjustment/Setting How to use the adjustment section • “Adjustment/Setting” contains detailed information on the adjustment items and proce- dures for this machine. • Throughout this “Adjustment/Setting,” the default settings are indicated by “ ”. Advance checks Before attempting to solve the customer problem, the following advance checks must be made.

  • Page 39: Service Mode

    5. Service Mode Field Service Ver. 1.0 Jun. 2008 Service Mode Service Mode setting procedure See P.146 of the main body service manual. ADF Adjustment 5.2.1 Zoom Functions • To set the zoom ratio in the main and sub scan directions of the ADF. •...

  • Page 40: Feed

    Field Service Ver. 1.0 Jun. 2008 5. Service Mode 9. Touch [Cross Direction Adjustment] or [Feed Direction Adjustment]. • Cross Direction Adjustment: A (Main scan direction) • Feed Direction Adjustment: B (Sub scan direction) 10. Press the Clear key, and then enter the numeric value from the 10-Key Pad.
  • Page 41 5. Service Mode Field Service Ver. 1.0 Jun. 2008 4. Select the appropriate function according to what needs to be checked and adjusted. • <1st side> Original placement: Printed side up, arrow pointing to the leading edge Simplex/Duplex: [1 > 1] •...

  • Page 42: Regist Loop

    Field Service Ver. 1.0 Jun. 2008 5. Service Mode 5.2.3 Regist Loop Functions • To adjust the length of the loop to be formed in paper before the registration rollers. • When an original misfeed or skew occurs. Adjustment • The loop value increases by the entered + value and decreases by the entered - value. instructions Adjustment •...

  • Page 43: Paper Passage

    5. Service Mode Field Service Ver. 1.0 Jun. 2008 5.2.5 Paper Passage Functions • To check for paper passage through the ADF in each of the ADF modes. • Used for checking the document path for any abnormal condition when a document misfeed occurs.

  • Page 44: Sensor Check (Scan)

    Field Service Ver. 1.0 Jun. 2008 5. Service Mode Sensor Check (Scan) 5.3.1 Functions • To check sensors on the paper path. • When a document misfeed occurs. A. Procedure 1. Call the Service Mode to the screen. See P.146 of the main body service manual. 2.

  • Page 45: Mechanical Adjustment

    6. Mechanical adjustment Field Service Ver. 1.0 Jun. 2008 Mechanical adjustment Adjusting skew feed 1. Check how the edges of the chart are misaligned. The amount of the deviation of the chart will be X. Deviation in + (plus) Deviation in - (minus) 9J07F3C513DA 2.
  • Page 46 Field Service Ver. 1.0 Jun. 2008 6. Mechanical adjustment 7. Remove five screws [1], rear cover [2], and rear left cover [3]. A0EYF3C504DA NOTE • When installing the rear cover and rear left cover, be sure to place the protective film [1] in the cover. A0EYF3C505DA Y109850-7 Service Manual...
  • Page 47 6. Mechanical adjustment Field Service Ver. 1.0 Jun. 2008 8. Loosen the four mounting screws [1] of the left hinge as viewed from the rear. A0EYF3C506DA 9. Move the reverse automatic docu- ment feeder in either direction shown by the arrows and select an appro- priate graduation line [1].

  • Page 48: Troubleshooting

    Field Service Ver. 1.0 Jun. 2008 7. Jam display Troubleshooting Jam display Initial check items • When a paper misfeed occurs, first perform the following initial check items. Check Item Action Does the paper meet product specifications? Change the paper. Change the paper.

  • Page 49: Sensor Layout

    Location (Electrical Control signal component) Initial check items — — PS7 I/O check, sensor check DFCB CN6-3 (ON) DF-612 F to G-6 CL3 operation check DFCB CN2-5 to 6 DF-612 F to G-2 Change DFCB — — Service Manual Y109850-7...

  • Page 50: Paper Feed Section Misfeed

    Location (Electrical Control signal component) Initial check items — — PS7 I/O check, sensor check DFCB CN6-3 (ON) DF-612 F to G-6 CL1 operation check DFCB CN2-1 to 2 DF-612 F to G-1 Change DFCB — — 7.4.3 Transport section misfeed A.

  • Page 51: Paper Exit Section Misfeed

    Location (Electrical Control signal component) Initial check items — — PS8 I/O check, sensor check DFCB CN5-10 (ON) DF-612 F to G-5 PS9 I/O check, sensor check DFCB CN6-4 (ON) DF-612 F to G-5 Change DFCB — — 7.4.5 Image reading section misfeed A.
  • Page 52 UPDATING STATUS DATE UPDATED PAGES PAGES CODE 09/2008 EDITION Y109850-7...

This manual is also suitable for:

Ms-501Sp-503

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