Konica Minolta LT-211 Service Manual
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Konica Minolta LT-211 Service Manual

Konica Minolta LT-211 Service Manual

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SERVICE MANUAL
LT-211
2004. 04
Ver. 2.0

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Summary of Contents for Konica Minolta LT-211

  • Page 1 SERVICE MANUAL LT-211 2004. 04 Ver. 2.0...
  • Page 3 Company names and commodity names mentioned in this service manual are the brand names or registered trade- marks of each company. After publication of this service manual, the parts and mechanism may be subject to change for improvement of their performance.
  • Page 4 Blank page...

  • Page 5: Table Of Contents

    1. LT-211 PRODUCT SPECIFICATIONS ........
  • Page 6 CONTENTS KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 Blank page...

  • Page 7: Ioutline

    KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 LT-211 PRODUCT SPECIFICATIONS OUTLINE 1. LT-211 PRODUCT SPECIFICATIONS A. Type Type: Side mount type volume paper feed tray B. Functions Paper size (for metric area): B5, A4, B4, A3, 8.5 x 11, 8.5 x 14, 11 x 17, 12 x 18, 13 x 19 Wide size: Up to 330mm x 487mm (13 x 19.2)

  • Page 8: Center Cross Section

    CENTER CROSS SECTION KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 2. CENTER CROSS SECTION lt2111001 Double feed prevention roller Paper feed roller Conveyance roller Up/down plate Paper feed solenoid (SD100) Up/down motor (M100) Feed roller...

  • Page 9: Drive System Diagram

    KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 DRIVE SYSTEM DIAGRAM 3. DRIVE SYSTEM DIAGRAM Paper feed drive A. Paper feed unit drive FRONT lt2111002 Feed roller Paper feed solenoid (SD100) Paper feed roller...
  • Page 10 DRIVE SYSTEM DIAGRAM KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 B. Front side drive lt2111003 Conveyance roller Paper feed roller Pre-registration clutch (MC102) Up/down plate Feed roller Double feed prevention roller Paper feed clutch (MC101) Paper feed motor (M101)

  • Page 11: Up/Down Plate Drive

    KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 DRIVE SYSTEM DIAGRAM Up/down plate drive FRONT lt2111004 Up/down plate Assist wire /C Up/down wire /A Up/down wire /A Assist wire /D Up/down wire /A Up/down wire /A Up/down motor (M100) Up/down drive shaft...
  • Page 12 DRIVE SYSTEM DIAGRAM KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 Blank page...

  • Page 13: Unit Explanation

    KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 PAPER FEED UNIT EXPLANATION 1. PAPER FEED Composition A. Paper feed drive SD100 FRONT CONT SGND CONT CLOCK LCTMGAIN PGND PGND 24V2 24V2 LTDB M101 lt2112001 Symbol Name Function or method Feed sensor (PS106)
  • Page 14 PAPER FEED KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 B. UP/down plate drive [11] SW100 [1] [12] FRONT LTDB M100 [10] lt2112002 Symbol Name Function or method Front door interlock switch Turning on/off the 24VDC supply in interlock with the front door...

  • Page 15: Operation

    KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 PAPER FEED Operation 1.2.1 Up/down plate control The up/down plate in the LCT is driven by the wire. When the upper cover and the front door are closed, the front door interlock switch (MS101) and the upper cover interlock switch (MS102) turn on to supply 24VDC to the drive system and the up/down motor (M100) turns on to lift the up/down plate.

  • Page 16: Paper Feed Assist Fan Control

    PAPER FEED KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 1.2.3 Paper feed assist fan control Some of the side guides (at front and rear) are provided with a fan to assist the handling of paper while it being fed. The fan truns on/off at the same timing as the paper feed motor (M101).

  • Page 17: Remaining Paper Detection

    KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 PAPER FEED 1.2.5 Remaining paper detection Remaining paper is detected by the remaining paper sensors /1 to /4 (PS102 to PS105). FRONT lt2112003 Actuator Remaining paper sensor /3 (PS104) Direction of rotation while in tray up drive...
  • Page 18 PAPER FEED KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 Blank page...

  • Page 19: Disassembly/Assembly

    KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 EXTERIOR III DISASSEMBLY/ASSEMBLY Caution: • Make sure the power cord of the copier is unplugged from the power outlet before dis- assembly or assembly. 1. EXTERIOR Removing and reinstalling the front cover 1. Remove the LCT from the main body.
  • Page 20 EXTERIOR KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 3. Open the front door [1] and remove 3 screws [2] provided on the side inside the door. 4. Remove a screw [3] on the upper face. 5. Remove 2 screws [4] on the right side and then remove the front cover [5].

  • Page 21: Removing And Reinstalling The Clutch Replacement Cover And The Rear Cover

    KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 EXTERIOR Removing and reinstalling the clutch replacement cover and the rear cover 1. Remove the right side cover. 2. Remove 4 screws [1] and then remove the clutch replacement cover [2]. lt2113007 3. Remove 12 screws [1] and then remove the rear cover [2].

  • Page 22: Removing And Reinstalling The Paper Feed Pick-Up Cover

    EXTERIOR KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 Removing and reinstalling the paper feed pick-up cover 1. Remove the LCT from the main body. 2. Open the top cover [1]. 3. Remove the spring [3] from the paper feed unit [2].

  • Page 23: Paper Feed

    KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 PAPER FEED 2. PAPER FEED Cleaning paper dust removing brush 1. Remove the LCT from the main body. 2. Remove the paper feed pick-up cover /B. 3. Close the top cover [1]. 4. Clean the paper dust removing brush [2] with the blower brush.

  • Page 24: Removing And Reinstalling The Paper Feed Unit

    PAPER FEED KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 Removing and reinstalling the paper feed unit 1. Remove the LCT from the main body. 2. Remove the paper feed pick-up cover /B. 3. Remove 2 stop rings [1]. [2] [1] 4. Slide 2 bearings [2] to the outside and remove the paper feed unit [3].

  • Page 25: Replacing The Paper Feed Roller And The Feed Roller

    KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 PAPER FEED Replacing the paper feed roller and the feed roller A. Periodically replaced parts/cycle • Paper feed roller: Every 600,000 copies (Every 500,000 copies in actual replacement count) • Feed roller: Every 600,000 copies (Every 500,000 copies in actual replacement count) B.

  • Page 26: Replacing The Double Feed Prevention Roller

    PAPER FEED KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 Replacing the double feed prevention roller A. Periodically replaced parts/cycle • Double feed prevention roller: Every 600,000 copies (Every 500,000 copies in actual replace- ment count) B. Procedure Note: • Be sure to lower the up/down plate to its lower...
  • Page 27 KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 PAPER FEED 5. Remove 2 stop rings [1]. 6. With the "D" cuts [2] of the shaft and the fixture attached together, remove the double feed pre- vention roller [3]. lt2113016 7. Remove the double feed prevention roller rub- ber [2] from the shaft [1] and replace it with a new one.

  • Page 28: Replacing The Paper Feed Clutch And The Pre-Registration Clutch

    PAPER FEED KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 Replacing the paper feed clutch and the pre-registra- tion clutch A. Periodically replaced parts/cycle • Paper feed clutch (MC101): Every 2,500,000 copies (Every 2,000,000 copies in actural replacement count) • Pre-registration clutch...

  • Page 29: Tray Up/Down

    KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 TRAY UP/DOWN 3. TRAY UP/DOWN Removing and reinstalling the rear drive A. Removing the cover Note: • Be sure to lower the up/down plate to its lower most position in advance by pressing the tray down switch (SW100) with electricity sup- plied.
  • Page 30 TRAY UP/DOWN KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 4. Remove 6 screws [1], remove then a bearing [2] and the LCT drive unit [3]. 5. Remove 2 connectors [4] provided on the back of the LCT drive unit [3] and then remove the LCT drive unit [3].
  • Page 31 KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 TRAY UP/DOWN 2. Remove an E-ring [1]. 3. Remove 5 screws [2]. 4. Remove 2 bearing [3] and then remove the guide plate [4]. [2] [3] lt2113024 5. Remove the gear [1]. Note: • When reinstalling this gear, be sure to make the positioning adjustments of the remaining paper detection gear at this step.
  • Page 32 TRAY UP/DOWN KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 9. Remove an E-ring [1] and then remove a bear- ing [2]. lt2113027 10. Remove 6 screws [1] and then remove the up/ down motor unit [2]. lt2113028 3-14...
  • Page 33 KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 TRAY UP/DOWN D. Reinstalling the rear drive Note: • Reinstall the rear drive following the removal steps in reverse, but be sure to make posi- tioning adjustments of the remaining paper detection gear at "C. Removing the up/down drive."...

  • Page 34: Removing And Reinstalling The Up/Down Wire

    TRAY UP/DOWN KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 Removing and reinstalling the up/down wire A. Wire length: • Up/down wire /A: 1450mm (4 wires) • Assist wire /C: 1240mm • Assist wire /D: 820mm B. Removing the wire Note: • Be sure to lower the up/down plate to its lower...
  • Page 35 KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 TRAY UP/DOWN 12. Remove the E-ring [1] and then remove the [11] drive pulley [3] while releasing the winding of the [10] up/down wire /A [2]. [12] 13. Remove the up/down wire /A [2] from the up/ down drive shaft [4].
  • Page 36 TRAY UP/DOWN KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 17. Remove the E-ring [1] and then remove the [11] drive pulley [3] while releasing the winding of the [10] up/down wire /A [2]. [12] 18. Remove the up/down wire /A [2] from the up/ down drive shaft [4].
  • Page 37 KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 TRAY UP/DOWN C. Reinstalling the wire 1. Insert the up/down wire /A [2] into the hole [1] provided on the upper surface of the LCT main body. 2. Reinstall the up/down wire /A [2] onto the guide pulleys [3], [4] and [5] in this order.
  • Page 38 TRAY UP/DOWN KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 6. Insert the up/down wire /A [2] into the hole [1] provided on the upper surface of the LCT main body. 7. Reinstall the up/down wire /A [2] onto the guide pulleys [3], [4] and [5] in this order.
  • Page 39 KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 TRAY UP/DOWN 11. In the same manner as Steps 1 to 5, reinstall the up/down wire /A [1] on the rear side. 12. In the same manner as Steps 17 to 21, reinstall the up/down wire /A [2] on the rear side.
  • Page 40 TRAY UP/DOWN KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 16. Wind the assist wire /C [3] around the drive pul- [3] [4] ley [6] one turn counterclockwise as seen from the front side. Note: [9] [17] [16] • Be sure to wind the assist wire /C [3] from [17] inside to outside in the drive pulley [6].
  • Page 41 KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 TRAY UP/DOWN 24. Reinstall 4 up/down wire protective covers [2] with a screw [1] for each. 25. Rotate the up/down drive shaft [3] counterclock- wise as seen from the rear side to bring down the up/down plate [4].
  • Page 42 TRAY UP/DOWN KONICA MINOLTA LT-211 Ver.2.0 Apr. 2004 Blank page 3-24...

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