Minolta EP5000 Disassembly And Reassembly
  1. Manuals
  2. Brands
  3. Minolta Manuals
  4. Copier
  5. EP5000
  6. Disassembly and reassembly

Minolta EP5000 Disassembly And Reassembly

Hide thumbs Also See for EP5000:
Table of Contents

Advertisement

Quick Links

Download this manual
1156SBD000AA
EP5000/EP4000
DIS/REASSEMBLY,
ADJUSTMENT

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the EP5000 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Minolta EP5000

Summary of Contents for Minolta EP5000

  • Page 1 1156SBD000AA EP5000/EP4000 DIS/REASSEMBLY, ADJUSTMENT...
  • Page 2 1151SBD0000A u For the Utmost safety u Warning D For replacement parts, use the genuine parts with their part numbers specified in the parts manual. Use of a wrong part could cause an overload or dielectric breakdown resulting in an electric shock or fire. D Replace a blown fuse or thermal fuse with the corresponding genuine part with its part number specified in the parts manual.
  • Page 3 Caution D A high voltage is being applied to the part marked with the symbol shown on the right. Touching it can cause an electric shock. Be sure to unplug the power cord when servicing this part or other parts near it. D When the machine is energized with any of its covers removed, never use a flammable spray near it, as a fire can result.

  • Page 4: Table Of Contents

    1156SBD000BA CONTENTS SERVICE INSTRUCTIONS 1-1. PRECAUTIONS FOR DISASSEMBLY/ADJUSTMENTS ..1-2. INSTRUCTIONS FOR HANDLING THE PWBs WITH MOS ICs ......... 1-3.
  • Page 5 CONTENTS 2-5. IMAGING UNIT ........D-38 (1) Removal of the Imaging Unit .
  • Page 6 CONTENTS (6) Cleaning of Fusing Front and Rear Thermistors TH1/2 ..D-58 (7) Cleaning of Fusing Thermoswitch TS1 ....D-59 (8) Replacement and Cleaning of the Cleaning Roller .
  • Page 7 CONTENTS 3-7. OTHER ADJUSTMENTS ....... D-94 (1) Focus-Positioning of the Scanner and Mirrors Carriage .

  • Page 8: Service Instructions

    1139SBD0100A SERVICE INSTRUCTIONS 1151SBD0101B 1-1. PRECAUTIONS FOR DISASSEMBLY/ADJUSTMENTS Observe the following precautions whenever servicing the copier. D Be sure to unplug the copier from the outlet before attempting to service the copier. D The basic rule is not to operate the copier anytime during disassembly. If it is absolutely necessary to run the copier with its covers removed, use care not to allow your clothing to be caught in revolving parts such as the timing belt and gears.
  • Page 9 <List of Fuses Used> Fuse Holder F3 250V 15A Exposure Thermal Fuse Fuse Board TF1 110° ° ° ° C 10A PWB-L 250V 3A (4) Power Supply Board PWB-C 250V 3A (5) Power Supply Unit Noise Filter Board 1156D001CA PU1 125V 8A PWB-D 250V 15A...

  • Page 10: Instructions For Handling The Pwbs With Mos Ics

    1139SBD0102A 1-2. INSTRUCTIONS FOR HANDLING THE PWBs WITH MOS ICs The following precautions must be observed when handling P.W. Boards with MOS (Metal Oxide Semiconductor) ICs. During Transportation/Storage: D During transportation or when in storage, new P.W. Boards must not be indiscriminately removed from their protective conductive bags.
  • Page 11 If, however, the surface is contaminated with fingerprints, clean it using the following procedure. 1. Place the PC Drum into one half of its container. 2. Gently wipe the residual toner off the surface of the PC Drum with a dry, Dust-Free Cotton Pad. a) Rotate the PC Drum so that the area of its surface on which the line of toner left by the Cleaning Blade is pres- ent is facing straight up.
  • Page 12 1151SBD0104A 1-4. PARTS WHICH MUST NOT BE TOUCHED (1) Screws Purpose of Application of Red Paint Red paint is applied to the screws which cannot be readjusted, set, or reinstalled in the field. The basic rule is not to remove or loosen the screws to which red paint is applied. In addition, be advised that, if two or more screws are designated as those which must not be touched on a single part, only one representative screw may be marked with red paint.

  • Page 13: Disassembly/Reassembly

    1156SBD0200A DISASSEMBLY/REASSEMBLY 1156SBD0201A 2-1. DOORS, COVERS, AND EXTERIOR PARTS: IDENTIFICATION AND REMOVAL PROCEDURES 1156D002AA 1156D003AA...
  • Page 14 Part Name Removal Procedure Front Door Swing down No. 1. ! Remove two Front Door hinge shafts. Remove one belt mounting screw inside the Front Door. Control Panel Raise No. 12. ! Swing down No. 1. ! Open No. 8. ! Re- move No.

  • Page 15: Removal Of Circuit Boards

    1156SBD0202A 2-2. REMOVAL OF CIRCUIT BOARDS D When removing a circuit board, refer to “PRECAUTIONS FOR HANDLING THE PWBs” contained in SWITCHES ON PWBs and follow the corresponding removal procedures given on the next page. D Replacement of a circuit board may call for readjustment or resetting of particular items. D The removal procedures given on the next page omit the removal of connectors and screws securing the circuit board support or circuit board.
  • Page 16 Symbol Part Name Removal Procedure PWB-A Master Board Remove No. 16. PWB-B MSC Board Swing down No. 1. ! Remove the Circuit Board cover. PWB-C Power Supply Board Remove No. 16. ! Remove the Toner Pipe. <EP4000 Except U.S.A., Canada and Europe> Remove No.
  • Page 17 1156SBD0203 2-3. PAPER TAKE-UP/TRANSPORT SECTIONS (1) Removal of the Paper Take-Up Unit <Except 120V Areas> Remove the Right Door, Right Cover, and Rear Cover. Remove the 1st and 2nd Drawers. (For the removal of the 1st and 2nd Drawers, see p. D-17.) Remove two locking wiring saddles.
  • Page 18 Remove three screws to free the Paper Take-Up Connec- tor Assy. 1156D007AA Remove two screws each to free 1st Drawer Paper Take- Up Motor M11 and 2nd Drawer paper Take-Up Motor M12. * For ease of understanding, the illustration shows where the connectors and Paper Take-Up Motors are removed.
  • Page 19 11. Pull the harness out to the front from the rear frame. 1134D009AA 12. Remove five screws and the Paper Take-Up Unit. 1156D009AA D-12...

  • Page 20: Separator Roll Assy

    (2) Removal of the Paper Take-Up Roll/Feed Roll Assy and Separator Roll Assy Remove the Right Door. Remove two screws and the Paper Guide Plate from each drawer. 1134D011AA Unhook the front and rear springs from the copier frame. Remove the Paper Separator Roll/Paper Guide Plate Assy by turning it about 90_ in the direction of the arrow.
  • Page 21 Remove one screw and the Paper Separator Roll Assy Mounting Bracket from each drawer. (The illustration shows how the Paper Separator Roll Assy is removed from the 2nd Drawer.) 1156D011AA Disassemble the Paper Separator Roll Assy. 1156D012AA D-14...
  • Page 22 Remove two C-clips from each Paper Take-Up Roll/Feed Roll Assy. (The illustration is for the Paper Take-Up Roll/ Feed Roll Assy for the 2nd Drawer.) 1156D013AA Remove the bushing from the front end of each Paper Take-Up Roll/Feed Roll Assy. Remove the rear bushing from the holder.
  • Page 23 10. Disassemble the Paper Take-Up Roll/Feed Roll Assy. *Keep the lock pin for later use. 1156D017AA (3) Cleaning of the Paper Take-Up Roll, Feed Roll, and Separator Roll Remove each Paper Take-Up Roll/Feed Roll Assy. Remove each Paper Separator Roll Assy. Using a soft cloth dampened with alcohol, wipe each roll clean of dirt.

  • Page 24: Rollers

    (4) Cleaning of the Vertical Transport Rollers Remove the Right Door, Right Cover, and Rear Cover. Using a soft cloth dampened with alcohol, wipe each roller clean of dirt. 1134D016AA (5) Removal of the Drawers *Though the following steps and illustrations are for the 1st Drawer, the same procedure applies also to the 2nd Drawer.
  • Page 25 <120V Areas> Turn ON Power Switch S1. Press the Paper Descent Key and then slide out the draw- 1156D023AA As with the metric areas, remove the right and left stop- pers. Remove one screw and the hookup connector cover. 1134D139CA Remove one screw and the hookup connector mounting bracket.
  • Page 26 (6) Removal of the Upper Synchronizing Roller Swing down the Front Door. Swing the Transport Section Release Lever down. Remove the Rear Cover. Unplug the bias terminal from High Voltage Unit HV1. Unplug CN1 of HV1. 1156D024AA Remove two screws to free HV1. 1156D025AA Snap off one E-ring to free Synchronizing Roller Clutch CL2.
  • Page 27 11. Remove the Upper Synchronizing Roller. 1156D028AA (7) Cleaning of the Upper and Lower Synchronizing Rollers Swing down the Front Door and slide out the IU. Using a brush or a soft cloth dampened with alcohol, clean the Upper Synchronizing Roller. 1136D092AA Swing down the Transport Section Release Lever.
  • Page 28 (9) Cleaning of the Paper Dust Remover Remove the Paper Dust Remover Assy. Using a brush, whisk dust off the Paper Dust Remover. 1136D095AA D-21...
  • Page 29 (10) Removal of the Suction Unit Remove the 1st and 2nd Drawers. Swing down the Front Door and slide out the IU. Remove the Paper Dust Remover Assy. Remove the Fusing Unit. Remove the motor cover. 1156D029AA Unplug two connectors from the lower end of the Suction Unit.
  • Page 30 Swing down the Transport Section Release Lever. 10. Holding up the Suction Unit, remove the compression coil. 1156D032AA 11. Remove the Suction Unit by sliding it to the right. NOTE When removing and reinstalling the Suction Unit, use care not to bend the ground plate located on the right in the rear. 1136D101AA NOTE When reinstalling the Suction Unit, make sure that two...
  • Page 31 Remove three Suction Belts. 1136D104AA Remove the Suction Roller as shown on the left. 1136D105AA (12) Disassembly of the Multi Bypass Unit Open the Right Door. Remove two screws and the cover. Remove the harness from one locking wiring saddle. Unplug three connectors.
  • Page 32 Remove the compression coil. NOTE When reinstalling the compression coil, place it so that its close-coiled end faces the Separator Unit. Close-Coiled End 1136D107AA Remove one C-clip and the Separator Assy. 1136D108AA Remove one C-clip and the Separator Roll Assy. 1136D109AA 10.
  • Page 33 12. Remove two set screws and the electromagnetic spring clutch. 1156D037AA NOTES D When reinstalling the electromagnetic spring clutch, ori- ent the Paper Take-Up Roll shaft and the clutch as shown on the left. D The end of the clutch must be flush with or slightly re- cessed (up to 1 mm) from the end face of the Paper Take- Up Roll shaft.
  • Page 34 15. Snap off the C-clip and remove the Paper Take-Up Roll. 1139D113AA D Cleaning of the Manual Bypass Paper Take-Up Roll Using a soft cloth dampened with alcohol, clean the Paper- Take-Up Roll. 1136D117AA D Cleaning of the Manual Bypass Feed Roll Using a soft cloth dampened with alcohol, clean the Feed Roll.

  • Page 35: Optical Section

    1156SBD0204A 2-4. OPTICAL SECTION (1) Cleaning of the Original Glass Wipe clean the Original Glass with a soft cloth. NOTE The surface of the Original Glass is coated with conductive material. Do not use a wax-based detergent. An alcohol-dampened cloth may be used if the glass is se- riously contaminated.
  • Page 36 (4) Removal of the Scanner 1. Move the Scanner to the right side of the copier. Remove three screws to free the Scanner. NOTE Hold the Scanner at a point near the Scanner Shaft when moving it. To remove the Scanner, turn it counterclockwise. 1156D042AA Unplug the Thermal Fuse terminal connector and remove the Thermal Fuse wire from three clamps.
  • Page 37 (6) Removal of the Thermal Fuse Unplug the Thermal Fuse connector. Remove the Thermal Fuse cord from three clamps. Remove one screw and Thermal Fuse cover. Remove two screws and the Thermal Fuse. 1156D046AA (7) Cleaning of the 1st, 2nd, and 3rd Mirrors Wipe clean the 1st Mirror with a soft cloth.
  • Page 38 (8) Cleaning of the Lens and 4th and 5th Mirrors Remove the Original Glass. Remove two screws and the Optical Cover. Remove two screws and the Lens Cover. 1136D133AA Gently dust off the surface of the Lens using a soft cloth. 1136D132AA Wipe clean the 4th and 5th Mirrors with a soft cloth.
  • Page 39 (9) Winding of the Lens Drive Cable Cable Drive Gear 1136D135AA Hold the Cable Drive Gear with the bead at the bottom. 1136D136AA Wind the longer length of the cable three and 1/2 turns clockwise around the Cable Drive Gear, working from the back to the front side.
  • Page 40 Pass the longer length of the cable through the hole in the light blocking plate. Slide the Cable Drive Gear onto its shaft and insert a wrench into the hole (4-mm dia.) to position the gear. 1136D139AA Wind the shorter length of the cable around pulley A. 1136D140AA Secure the shorter length of the cable to the Cable Fixing Bracket.

  • Page 41: Removal Of Scanner Motor M2

    (10) Removal of Scanner Motor M2 Remove the Right Cover, Rear Cover, and Rear Upper Cover. Remove four screws to free PWB-F. 1156D048AA Unplug one connector. Then, remove the edge cover with a lock and the harness. Remove four screws and Scanner Motor M2. 1156D049AA D-34...
  • Page 42 (11) Removal of the Scanner Drive Cable Remove the Original Cover. Remove the Right Cover, Rear Cover, Rear Upper Cover, and Upper Left Cover. Remove the Original Glass. Remove the Scanner. Remove Scanner Motor M2. Remove two screws to free the SCP Board (PWB-F) mounting bracket.
  • Page 43 (12) Winding of the Scanner Drive Cable z Important When the Scanner Drive Cable has been wound: 1) Perform the “Focus-positioning of the Scanner and Mirrors Carriage.” 2) Slide the Scanner by hand to check for cable tension before turning the copier ON. 3) No part of the cable should ride on others when winding the cable around the Cable Drive Pulley.
  • Page 44 10. Remove the Scanner Drive Cable from the pulleys. 11. Remove one screw to free the Original Cover Detecting Sensor Assy. 12. Remove four screws and the Scanner Drive Pulley mount- ing bracket. 13. Snap off one E-ring and remove the Scanner Drive Pulley. 1156D051AA (13) Cleaning of the 6th Mirror Protective Filter Swing down the Front Door and slide out IU.
  • Page 45 1156SBD0205A 2-5. Imaging Unit (1) Removal of the Imaging Unit Swing down the Front Door. Swing the Transport Section Release Lever down. 1136D150AA Loosen two screws that secure the IU. Slide out the IU. 1156D055AA (2) Disassembly of the Imaging Unit Remove the PC Drum Charge Corona by moving it to the rear.
  • Page 46 Remove three screws and the Main Hopper. 1136D155AA Unplug one connector and remove three screws and the Sub Hopper. 1156D058AA Remove two screws and the Developer Scattering Pre- vention Plate. NOTE Do not remove the Doctor Blade Assy, as a changed Db could result.
  • Page 47 Remove two screws and the Cleaning Blade. 1136D172AA NOTE When reinstalling the Cleaning Blade, press the blade tightly up against the mounting bracket. 1136D173AA 10. Unplug one connector. 11. Remove three screws and the PC Drum Paper Separator Finger Holder Assy. 1156D061AA NOTE Coupling Holder...
  • Page 48 12. Remove the PC Drum Paper Separator Fingers and AIDC Sensor Board PWB-G as shown below. Assy PWB-G Torsion Spring 1156D062AA * PC Drum Paper Separator Fingers At removal and reinstallation, use care not to damage the tip of the fingers. Also, use care not to get hurt by the tip of the fingers.
  • Page 49 (3) Replacement of the PC Drum Slide out the IU. Loosen one screw and remove the stopper. Remove and replace the PC Drum. NOTE When the PC Drum has been replaced, reset the count of “PC Drum” of “Port/Option” counters of the Tech. Rep. mode and then make the “adjustment of exposure level in the Auto Exposure mode.”...
  • Page 50 (8) Replacement of the Cleaning Blade Remove and replace the Cleaning Blade. 1136D172AA Remove the Toner Bottle from the IU. Insert a brush through the toner port and into the toner. 1138D321AA Apply toner to the entire surface of the new Cleaning Blade.
  • Page 51 Install the PC Drum. NOTE Do not touch the surface of the PC Drum with bare hands. Hold onto both ends of the PC Drum when installing the drum. 1136U014AA Fit the PC Drum stopper and tighten the screw. 1156D064AA Apply a thin coat of toner to the surface of the PC Drum.
  • Page 52 (9) Replacement of the Starter Dump the developer out of the Developing Unit. 1136D157AA Turning the Bucket Roller, pour fresh starter evenly into the chamber. NOTE Shake the packet of starter well before opening it. NOTE When the starter has been replaced, reset the count of “Starter” of the “Port/Option” counters of the Tech.
  • Page 53 (10) Cleaning of the AIDC Sensor Board Remove the PC Drum Paper Separator Fingers Assy. Using a brush or a soft cloth dampened with alcohol, clean the AIDC Sensor Board. 1156D067AA (11) Cleaning of the PC Drum Paper Separator Fingers Remove the PC Drum Paper Separator Fingers Assy.
  • Page 54 (13) Removal of Main Erase Lamp LA3 Swing down the Front Door. Unplug one connector. Remove one screw and Main Erase Lamp LA3. 1156D068AA (14) Cleaning of the Main Erase Lamp Filter Swing down the Front Door. Remove the Main Erase Lamp Filter. 1136D186AA Using a soft cloth dampened with alcohol, wipe clean the Main Erase Lamp Filter.
  • Page 55 Unplug one connector in the rear and remove Image Erase Lamp LA2. NOTE When Image Erase Lamp LA2 has been removed, make the “adjustment of edge erase.” (For the adjustment of edge erase, see p. D-93.) 1134D056AA (17) Removal of the Ozone Filter (PC Drum Charge Corona) Swing down the Front Door.

  • Page 56: Pc Drum Charge Corona And Image Transfer/Paper Separator Coronas

    1156SBD0206A 2•6. PC DRUM CHARGE CORONA AND IMAGE TRANSFER/PAPER SEPARATOR CORONAS (1) Removal of the PC Drum Charge Corona Move the PC Drum Charge Corona to the rear and pull it off. 1156D069AA (2) Cleaning of the PC Drum Charge Corona Housing Remove the IU.

  • Page 57: Corona Wire

    (3) Cleaning of the PC Drum Charge Corona Grid Mesh Blow all foreign matter off the Grid with a blower brush. NOTE If the blower brush is not effective in cleaning the Grid, use a soft cloth dampened with alcohol to clean serious con- tamination.

  • Page 58: Coronas Housing

    Remove the Holder Covers at the front and rear. 1136D200AA Remove the corona wire, first at the spring end. Replace the corona wire with a new one. 1136D201AA (7) Cleaning and Replacement of the Paper Separator Corona Wire Remove four Paper Guides. 1136D202AA Dampen a soft cloth with alcohol, hold it with a pair of twee- zers, and wipe the Paper Separator Corona Wire gently in...

  • Page 59: Guide Plate

    (9) Cleaning of the Lower Pre-Image Transfer Guide Plate Using a soft cloth dampened with alcohol, wipe clean the Lower Pre-Image Transfer Guide Plate. 1136D206AA D-52...

  • Page 60: Fusing Unit

    1156SBD0207A 2•7. FUSING UNIT (1) Removal of the Fusing Unit Open the Left Door. Swing down the Front Door. Remove one screw and the Fusing Unit. 1156D073AA (2) Disassembly of the Fusing Unit Remove two screws and the Front Cover. 1156D074AA Unplug the connector of the Heater Lamp on the front.
  • Page 61 Remove one screw and the Heater Lamp cord in the rear. Remove the Heater Lamp cord from the locking edge cov- 1156D078AA Remove three screws and the rear lamp holder. 10. Remove the Heater Lamp cord from the wiring saddle. 11.
  • Page 62 14. Remove the harness from the Harness Guide. 15. Unplug the connectors of the two Thermistors. 1156D082AA 16. Remove one screw, shoulder screw, and the Harness Guide. 17. Remove one screw and the Thermoswitch cord. 1156D083AA 18. Remove two screws and the Temperature Detector Assy. 1156D084AA NOTE When reinstalling the Temperature Detector Assy, be...
  • Page 63 21. Remove the two torsion springs. 22. Remove two shoulder screws and the Lower Exit Guide Assy. Lower Fusing Roller Shoulder Screw Rear Upper Fusing Roller Torsion Spring Torsion Spring Shoulder Screw Front Lower Exit Guide Assy 1156D086AA Lower Exit Guide Assy Position ➀...
  • Page 64 23. Loosen the screw that secures the spring bracket at the front and then unhook the spring at the top. Repeat the same step for the spring in the rear. NOTE When reinstalling the springs, alternately tighten the bracket mounting screws until the brackets completely contact the ends of the Lower Exit Guide Assy.

  • Page 65: Separator Fingers

    (3) Replacement and Cleaning of the Upper Fusing Paper Separator Fingers Remove the Upper Fusing Paper Separator Finger mount- ing bracket. Remove five springs. Slide out the shaft to remove the Upper Fusing Paper Sep- arator Fingers. Replace the fingers with new ones. 1156D091AA Using a soft cloth dampened with alcohol or silicone oil, wipe clean the Upper Fusing Paper Separator Fingers.
  • Page 66 (7) Cleaning of Fusing Thermoswitch TS1 Remove the Temperature Detector Assy. Using a soft cloth dampened with alcohol, wipe clean the thermoswitch. 1156D094AA (8) Replacement and Cleaning of the Cleaning Roller Remove two screws and the Upper Cover. Remove the Cleaning Roller. Replace the Cleaning Roller with a new one.
  • Page 67 (10) Replacement and Cleaning of the Lower Fusing Roller Remove the Lower Fusing Roller. Replace the Lower Fusing Roller with a new one. 1156D088AA Using a soft cloth dampened with alcohol or silicone oil, wipe clean the Lower Fusing Roller. 1136D234AA D-60...

  • Page 68: Exit Unit

    1156SBD0208A 2-8. EXIT UNIT (1) Removal of the Exit/Duplex Switching Unit 1. Remove the Rear Cover. 2. Open the Left Door. 3. Remove the Upper Left Cover. Remove four screws to free the Sorter Connector Assy. 1134D144AA Unplug two connectors. Remove one screw and the ground wire.

  • Page 69: Adjustment

    1156SBD0300A ADJUSTMENT 1156SBD0301A 3-1. JIGS AND TOOLS USED z Important ➂ ➃ D When adjusting the positions of the Scanner and Mirrors Carriage, use jigs number ➄ ➅ D When adjusting the gap between the Doctor Blade and Sleeve Roller, use jigs number ➄...
  • Page 70 1156SBD0302A 3-2. ADJUSTMENT REQUIREMENTS LIST Ref. Adjustment Item Requirements Adjusting Point Page Kodak Gray Scale: no image Optimum exposure in the of the 1st step, faint image of Control panel D-73 Manual Exposure mode the 2nd step Crosswise zoom ratio, full (⋅...

  • Page 71: Adjustment Of Switches

    1151SBD0303A 3-3. ADJUSTMENT OF SWITCHES Microswitches The following microswitches are used in various parts of this copier. Blue (NC) Yellow (NO) Red (COM) Red (COM) 1136D007AA 1136D009AA Wiring for the NO Type Wiring for the NC Type NC (Normally-Closed) : Current flows between NC and COM when the actuator is open. NO (Normally-Open) : Current flows between NO and COM when the actuator is closed.

  • Page 72: Adjustment Of Front Door Interlock Switch S21

    Adjustment of Front Door Interlock Switch S21 Swing down the Front Door. Remove six screws and the Upper Left Cover. 1136D009AA Remove three screws and the cover. Loosen two screws that secure Front Door Interlock Switch. 1136D010AA Close the Front Door. Slowly move the switch to the front until the actuator is closed by the actuator stop on the Front Door.

  • Page 73: Iu Timing Belt

    1156SBD0304A 3-4. ADJUSTMENT OF BELT TENSION z Important D Make sure that all gears are in positive mesh with each other and the belts snugly fit in the pulley grooves. D Each belt should flex a little when finger-pressed down on the location indicated by the arrow. Belt Tension Deflection (Reference only)

  • Page 74: Accessing The Tech. Rep. Mode And Adjust Mode

    1156SBD0305A 3-5. ACCESSING THE TECH. REP. MODE AND ADJUST MODE z Accessing the Tech. Rep. Mode To access the Tech. Rep. mode, press the following keys in order. Stop Key Stop Key “0” “1” 1134D069AA 1156D134CA Press the keys in order of [1], [2], [3], and [4]. z Accessing the Adjust Mode To access the Adjust mode, press the following keys in order with the Tech.
  • Page 75 1156SBD0306A 3-6. ELECTRICAL/IMAGE ADJUSTMENTS (1) Initial Adjustment of Original Size Detecting Board z Important D The following adjustment must be made when memory has been cleared, RAM Board PWB-R or Original Size Detecting Board UN2 replaced, or an Original Size Detecting Sensor replaced or added.
  • Page 76 (2) ATDC Adjustment z Important Make this adjustment only after the starter has been replaced. Load the IU with fresh starter. Reinstall the IU in the copier. 1134D051AA Call the Tech. Rep. mode menu to the screen. Touch Function to show the Function menu on the screen. F8 ATDC Adjust Touch Press the Start Key to let the copier make the ATDC adjustment.
  • Page 77 7. Touch Menu on the screen to show the Tech. Rep. mode menu again. Level History 8. Touch and enter the value for the “ATDC Ref. Level” on the Adjust Label affixed inside the Front Door. 9. Then, press the Panel Reset Key to return the copier to the Basic screen. 1156D168CA 1156D143CA Enter This Value on the Adjust Label.
  • Page 78 (3) Adjustment of the Aperture Blades z Requirement D There should be no dark or light bands running in the feeding direction on copies produced. (Adjust to obtain the mean image density for all areas.) z Important D If dark and light bands running in the feeding direction occur on copies, make this adjustment after checking the following.

  • Page 79: Exposure Mode

    (4) Adjustment of Exposure Level in the Auto Exposure Mode z Important D Before starting the procedure, check that the Auto Exposure mode is selected on the Touch Panel. D For the adjustment, stack about five blank sheets of A3 or 11” ⋅ 17” paper on the Original Glass and lower the Original Cover.
  • Page 80 (5) Adjustment of Optimum Exposure Setting in the Manual Exposure Mode z Requirement D Exposure Lamp voltage setting range in the Manual Exposure mode ... 44 to 56 D When the manual exposure setting is at the central indication, no image of step no. 1 of a Kodak Gray Scale should be produced on the copy, but a faint image of step no.
  • Page 81 Next 5. Touch twice to show the “Tech. Rep. Choice 3” menu on the screen. 6. Observing the image density of the sample copy, touch the shift key A or " to change the setting for “Image Exposure”. 7. Touch Enter to validate the setting.
  • Page 82 (6) Adjustment of Zoom Ratio in the Crosswise Direction (“Adjust A1 = Lens Full Size Position”) z Requirement D This adjustment is made for the zoom ratio in the crosswise direction. D A scale is placed on the Original Glass to run parallel with the Scanner and the length of the scale on the copy is compared with that of the actual scale.
  • Page 83 Call the “Adjust 1/2” menu to the screen. Touch the select key ! or " to highlight “A1 Lens Full Size Position”. 1156D138CA 1156D154CA Touch the shift key A or " to change the set value. Touch Enter to validate the setting. Setting Instructions D If the scale on the copy is longer than the actual scale, decrease the setting value.
  • Page 84 (7) Adjustment of Zoom Ratio in the Feeding Direction (“Adjust A3 = Feed Direction Mag. Ratio”) z Requirement D This adjustment is made for the zoom ratio in the feeding direction. D A scale is placed on the Original Glass perpendicularly to the Scanner and the length of the scale on the copy is compared with that of the actual scale.
  • Page 85 Call the “Adjust 1/2” menu to the screen. Touch the select key ! or " to highlight “A3 Feed Direction Mag. Ratio”. 1156D138CA 1156D151CA Touch the shift key A or " to change the set value. Touch Enter to validate the setting. Setting Instructions D If the scale on the copy is longer than the actual scale, decrease the setting value.

  • Page 86: Bypass Table

    (8) Adjustment of Reference Position of the Multi Bypass Table z Requirement D Dimension A on the copy of the GTC-test chart should mea- sure 20 mm 2.0 mm in the full size (⋅ 1.000) mode. Dimension A 1134D196AB z Important This adjustment should be made after the “adjustment of zoom ratio in the crosswise direction”.

  • Page 87: Drawer

    (9) Adjustment of Reference Position of the 1st/2nd Drawer z Requirement D Dimension A on the copy of the GTC-test chart should mea- sure 20 mm 2.0 mm in the full size (⋅ 1.000) mode. Dimension A 1134D196AB z Important This adjustment should be made after the “adjustment of zoom ratio in the crosswise direction”.

  • Page 88: Leading Edge Registration In Full Size Mode

    (10) Adjustment of the Leading Edge Registration z Requirement D Dimension A on the copy of the GTC-test chart should mea- Dimension A sure as follows at the respective zoom ratios. 1138D170AA Zoom Ratio Specifications Adjusting Mode Setting Range Adjust A4 = Lens Position Full size (⋅...
  • Page 89 Call the “Adjust 1/2” menu to the screen. Touch the select key ! or " to highlight “A4 Scan Regist Full Size”. 1156D148CA 1156D138CA Touch the shift key A or " to change the setting value. Touch Enter to validate the setting. Setting Instructions D If dimension A on the copy is longer than 21.5 mm, increase the setting value.

  • Page 90: Leading Edge Registration In Enlargement Mode

    (2) Leading Edge Registration in Enlargement Mode z Important This adjustment should be made after the “adjustment of leading edge registration in the full size mode”. After the leading edge registration in the full size mode has been adjusted, make three single copies on A3 or 11” ⋅...
  • Page 91 Touch the shift key A or " to change the setting value. Touch Enter to validate the setting. Setting Instructions D If dimension A on the copy is longer than 43.0 mm, increase the setting value. D If dimension A on the copy is shorter than 37.0 mm, decrease the setting value. *If the measurement does not fall within the specifications through one setting, try another setting.

  • Page 92: Leading Edge Registration In Reduction Mode

    (3) Leading Edge Registration in Reduction Mode After the leading edge registration in the enlargement mode has been adjusted, make three single copies on A3 or 11” ⋅ 17” paper at ⋅ 0.500 and check the 3rd copy for leading edge registration. (If the registration deviates from the specifications, per- form the following steps to make the adjustment of leading edge registration in the reduction mode.)
  • Page 93 4. Touch the shift key A or " to change the setting value. 5. Touch Enter to validate the setting. Setting Instructions D If dimension A on the copy is longer than 11.5 mm, increase the setting value. D If dimension A on the copy is shorter than 8.5 mm, decrease the setting value. *If the measurement does not fall within the specifications through one setting, try another setting.

  • Page 94: Second Page

    (11) Adjustment of the Leading Edge Registration for Book Second Page z Requirement D Dimension A on the copy of a test chart (A3 or 11” ⋅ 17”) as shown on the left should measure 20 3.0 mm and B equals D Setting range: 45 to 55 1136D036AA z Important...
  • Page 95 Next With the “Adjust 1/2” menu on the screen, touch to show the “Adjust 2/2” menu. Then, high- light “A6 Book B-Scan Regist”. 1156D166CA 1156D163CA 5. Touch the shift key A or " to change the setting value. 6. Touch Enter to validate the setting.
  • Page 96 (12) Adjustment of the Image Leading Edge Erase Width z Requirement D The erase width, dimension A, on the copy of the GTC−test Dimension A chart should measure 1.0 to 6.5 mm. D Setting range: 45 to 55 1134D135AA z Important This adjustment should be made after the “adjustment of the leading edge registration”...
  • Page 97 Touch the shift key A or " to change the setting value. Touch Enter to validate the setting. Setting Instructions D If dimension A on the copy is longer than 6.5 mm, decrease the setting value. D If dimension A on the copy is shorter than 1.0 mm, increase the setting value. *If the measurement does not fall within the specifications through one setting, try another setting.
  • Page 98 (13) Adjustment of the Image Trailing Edge Erase Width z Requirement D The erase width, dimension A, on the copy of the GTC-test chart should measure 0.5 to 5.5 mm. D Setting range: 42 to 58. Dimension A 1134D134AA z Important D This adjustment should be made after the “adjustment of the image leading edge erase width”.
  • Page 99 Touch the shift key A or " to change the setting value. Touch Enter to validate the setting. Setting Instructions D If dimension A on the copy is longer than 5.5 mm, decrease the setting value. D If dimension A on the copy is shorter than 0.5 mm, increase the setting value. *If the measurement does not fall within the specifications through one setting, try another setting.
  • Page 100 (14) Adjustment of Edge Erase z Requirement D Dimension A, which is the erase width from the front edge on the copy of the GTC-test chart, should be in the range be- tween 0.5 mm and 4.0 mm. 1136D043AA z Important This adjustment must be made after the “adjustments of reference positions”.

  • Page 101: Other Adjustments

    1156SBD0307A 3-7. OTHER ADJUSTMENTS (1) Focus-Positioning of the Scanner and Mirrors Carriage z Requirement D With the Scanner positioned correctly with reference to the Scanner Drive Cable, there should be no gap between one end of the Scanner/Mirrors Carriage Positioning Jig and the Scanner, and between the other end of the jig and the Mirrors Carriage.
  • Page 102 Tighten the Scanner Positioning Screw which was loos- ened in step 3. 1139D051AA D-95...

  • Page 103: Sleeve Roller (D.b. Adjustment

    (2) Adjustment of the Gap Between the Doctor Blade and Sleeve Roller (D.B. Adjustment) z Requirement D The gap between the Doctor Blade and Sleeve Roller should be 0.53 0.05 mm. Remove the IU, PC Drum Charge Corona, and PC Drum. Remove two screws and the Developer Scattering Pre- vention Plate.

  • Page 104: Adjustment Of The Pc Drum Paper Separator Finger Position

    (3) Adjustment of the PC Drum Paper Separator Finger Position z Requirement D The gap between the PC Drum and Paper Separator Fingers should be 1.0 0.5 mm when Separator Solenoid SL1 is in the deenergized position. z Important D Use care not to deform the Separator Fingers during the adjustment procedure. Attach the PC Drum Paper Separator Finger Positioning Jig to the IU.

  • Page 105: Adjustment Of Manual Feed Paper Take-Up Solenoid Sl4

    (4) Adjustment of Manual Feed Paper Take-Up Solenoid SL4 Remove the SL4 mounting bracket. (For the removal steps, see p. D-25.) Manually bring SL4 into the energized position (plunger pushed in). * A click is heard when the solenoid is energized. Then, hold the plunger in position.

  • Page 106: Adjustment Of Exit/Duplex Solenoid Sl5

    (5) Adjustment of Exit/Duplex Solenoid SL5 z Requirement D With the lever in contact with the stopper (SL5 in the deenergized position), the gap between the plunger rubber washer and the solenoid should be 4.0 to 4.5 mm. z Important D After the adjustment, move the plunger manually to check that it moves smoothly and the Switching Plate swings up and down properly.

  • Page 107: Miscellaneous

    1156SBD0400A MISCELLANEOUS 1156SBD0401A 4-1. Installation of the Plug-In Counter (Option) Mounting Bracket Open the Right Door. Remove two screws and the cover. Remove the harness from the locking wiring saddle. Unplug three connectors. 1156D033AA Remove two screws and the Right Door. 1156D034AA Remove the Counter Cover.

  • Page 108: Adjustment Of The Right Door

    1156SBD0402A 4-2. ADJUSTMENT OF THE RIGHT DOOR If the Right Door has been removed and reinstalled, the position of the actuator of Right Upper Door Interlock Switch S22 may deviate from the correct position. Hence, the necessity of the following adjustment. Mount the Right Door with two screws.
  • Page 109 1156SBD000EA Copyright 1997 MINOLTA Co., Ltd. Printed in Japan Use of this manual should be strictly supervised to avoid disclosure of confidential information. MINOLTA CO., LTD. 1156-7992-11 97046000 Printed in Japan...

This manual is also suitable for:

Ep4000

Table of Contents