Konica Minolta AD-504 Service Manual
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Konica Minolta AD-504 Service Manual

Konica Minolta AD-504 Service Manual

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SERVICE MANUAL
THEORY OF OPERATION
AD-504
2005.04
Ver. 1.0

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Summary of Contents for Konica Minolta AD-504

  • Page 1 SERVICE MANUAL THEORY OF OPERATION AD-504 2005.04 Ver. 1.0...
  • Page 3 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 5: Table Of Contents

    Theory of Operation Ver. 1.0 Apr. 2005 CONTENTS Outline Product specification ....................1 Composition/Operation Duplex Unit (AD-504) ....................3 Construction ......................3 Operation ......................4 Electric Parts Layout..................... 4 Switchback Operation................... 5 2-sided Copying with a Single Sheet of Paper Resident in the Unit ..... 6 2.5.1...

  • Page 6: Theory Of Operation Ver. 1.0 Apr

    Theory of Operation Ver. 1.0 Apr. 2005 Blank page...

  • Page 7: Product Specification

    Theory of Operation Ver. 1.0 Apr. 2005 1. Product specification Outline Product specification Name Duplex Unit Type Sheet duplex paper take-up section Installation Installed to the right side door Paper Size A3, A4 R, A4, A5 R, A5, B4, B5 R, B5, FLS, Ledger, Legal, Letter, Invoice R, Invoice Paper Type Plain paper (60 to 90 g/m...
  • Page 8 1. Product specification Theory of Operation Ver. 1.0 Apr. 2005 Blank page...

  • Page 9: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2005 2. Duplex Unit (AD-504) Composition/Operation Duplex Unit (AD-504) Construction 4532M503AA Duplex Unit Transport Roller 1 Duplex Unit Transport Roller 2 Duplex Unit Transport Roll 1 Duplex Unit Transport Roll 2...

  • Page 10: Operation

    2. Duplex Unit (AD-504) Theory of Operation Ver. 1.0 Apr. 2005 Operation • The Duplex Unit Transport Motor provides the drive for the Duplex Unit. 4532M501AA Electric Parts Layout 4532M001AA Duplex Unit Transport Motor (M2/AD) Control Board (PWB-A/AD) Duplex Unit Transport Sensor (PC2/AD)

  • Page 11: Switchback Operation

    Theory of Operation Ver. 1.0 Apr. 2005 2. Duplex Unit (AD-504) Switchback Operation • The paper printed on one side is switched back by the exit rollers on copier to transport it into the duplex unit. • The switchback operation of transport rollers is carried out by the Duplex Unit Switch- back Motor.

  • Page 12: 2-Sided Copying With A Single Sheet Of Paper Resident In The Unit

    2. Duplex Unit (AD-504) Theory of Operation Ver. 1.0 Apr. 2005 2-sided Copying with a Single Sheet of Paper Resident in the Unit 2.5.1 Operation 1. The first sheet of paper is taken up and the image of page 2 of the origi- nal is printed.

  • Page 13: 2-Sided Copying With Two Sheets Of Paper Resident In The Unit

    Theory of Operation Ver. 1.0 Apr. 2005 2. Duplex Unit (AD-504) 2-sided Copying with Two Sheets of Paper Resident in the Unit 2.6.1 Operation 1. The first sheet of paper is taken up and the image of page 2 of the origi- nal is printed.
  • Page 14 2. Duplex Unit (AD-504) Theory of Operation Ver. 1.0 Apr. 2005 10. While the second sheet of paper is being fed out of the copier, the third sheet of paper is taken up and the image of page 6 of the original is printed.
  • Page 15 SERVICE MANUAL FIELD SERVICE AD-504 2005.04 Ver. 1.0...
  • Page 17 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 19 Field Service Ver. 1.0 Apr. 2005 CONTENTS General Product specification ....................1 Maintenance Other ........................3 Disassembly/Adjustment prohibited items ............3 Disassembly/Assembly procedure................ 4 2.2.1 Exterior Parts ....................4 2.2.2 Control Board (PWB-A/AD)................5 Cleaning procedure ....................6 2.3.1 Duplex Unit Transport Rollers/Rolls .............. 6 2.3.2 Switch Back Unit Transport Roller/Roll ............
  • Page 20 Field Service Ver. 1.0 Apr. 2005 Sensor layout...................... 17 Solution ......................18 6.3.1 Initial Check Items ..................18 6.3.2 Duplex Reversal Housing Block..............18...

  • Page 21: Product Specification

    Field Service Ver. 1.0 Apr. 2005 1. Product specification General Product specification Name Duplex Unit Type Sheet duplex paper take-up section Installation Installed to the right side door Paper Size A3, A4 R, A4, A5 R, A5, B4, B5 R, B5, FLS, Ledger, Legal, Letter, Invoice R, Invoice Paper Type Plain paper (60 to 90 g/m...
  • Page 22 1. Product specification Field Service Ver. 1.0 Apr. 2005 Blank page...

  • Page 23: Maintenance

    Field Service Ver. 1.0 Apr. 2005 2. Other Maintenance Other Disassembly/Adjustment prohibited items A. Paint-locked Screws NOTE • Paint-locked screws show that the assembly or unit secured can only be adjusted or set at the factory and should not be adjusted, set, or removed in the field. B.

  • Page 24: Disassembly/Assembly Procedure

    2. Other Field Service Ver. 1.0 Apr. 2005 Disassembly/Assembly procedure 2.2.1 Exterior Parts 4532D006AB Part Name Removal Procedure Remove the Lower Right Cover. → Remove two screws. → Right Cover Remove the Right Cover. Remove one screw. → Remove the Lower Right Cover. Lower Right Cover Remove the Right Cover.

  • Page 25: Control Board (Pwb-A/Ad)

    Field Service Ver. 1.0 Apr. 2005 2. Other 2.2.2 Control Board (PWB-A/AD) PWB-A/AD 4532D007AA 1. Remove one screw and the Lower Right Cover. 4532D011AA 2. Remove two screws and the Right Cover. 4532D017AB 3. Remove two screws, unplug all con- nectors, and remove the Control Board.

  • Page 26: Cleaning Procedure

    2. Other Field Service Ver. 1.0 Apr. 2005 Cleaning procedure 2.3.1 Duplex Unit Transport Rollers/Rolls 1. Open the Front Door of the Duplex Unit. 2. Using a soft cloth dampened with alcohol, wipe the Duplex Unit Trans- port Rollers/Rolls clean of dirt. 4532D001AA 2.3.2 Switch Back Unit Transport Roller/Roll...

  • Page 27: Bypass Transport Roller/Rolls

    Field Service Ver. 1.0 Apr. 2005 2. Other 2. Open the Front Door of the Duplex Unit. 3. Using a soft cloth dampened with alcohol, wipe the inside of the Duplex Unit Ventilation Section clean of dirt. 4532D005AB 2.3.4 Bypass Transport Roller/Rolls 1.
  • Page 28 2. Other Field Service Ver. 1.0 Apr. 2005 Blank page...

  • Page 29: Adjustment/Setting

    Field Service Ver. 1.0 Apr. 2005 3. 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 “ ”. A.

  • Page 30: Service Mode

    4. Service Mode Field Service Ver. 1.0 Apr. 2005 Service Mode Service Mode function setting procedure NOTE • Care must be used to ensure that only the personnel who are involved in service jobs know the procedure to enter the Service mode. 4.1.1 Procedure 1.

  • Page 31: Setting In The Service Mode

    Field Service Ver. 1.0 Apr. 2005 4. Service Mode Setting in the Service Mode 4.2.1 SERVICE’S CHOICE A. LOOP ADJUST (DUPLEX) Purpose/Use To adjust the length of the loop formed in the paper before the Synchronizing Roller. ✽ When a skew feed, fold, or misfeed of paper occurs ✽...
  • Page 32 4. Service Mode Field Service Ver. 1.0 Apr. 2005 Blank page...

  • Page 33: Troubleshooting

    Field Service Ver. 1.0 Apr. 2005 5. Introduction Troubleshooting Introduction • Information required for troubleshooting and steps that must be performed are described in this chapter. Electrical Components Check Procedure • If a paper misfeed or malfunction occurs, perform the following operations to check the condition of the electrical components.

  • Page 34: Switch

    5. Introduction Field Service Ver. 1.0 Apr. 2005 5.1.2 Switch Step Check Result Action Replace the switch. Does the input signal (NO) of the control board change from L Replace the control to H when the switch is activated? board. Not Use 4025T523AB 5.1.3...

  • Page 35: Motor

    Field Service Ver. 1.0 Apr. 2005 5. Introduction 5.1.5 Motor Step Check Result Action Replace the control Does the LOCK signal switch to H when the machine goes into board. Replace the standby? motor. Replace the motor. Does the REM signal of the master board change from H to L Replace the control when the motor is turned on? board.

  • Page 36: Jam Display

    6. Jam Display Field Service Ver. 1.0 Apr. 2005 Jam Display Misfeed Display • When a paper misfeed occurs, the Error indicator lights up steadily and the Display gives a corresponding message. 4532T501CA Display Message Misfeed/Paper Location Ref. Page ☞ OPEN DUPLEX COVER Duplex Reversal Housing Block 6.1.1 Display Resetting Procedure...

  • Page 37: Sensor Layout

    Field Service Ver. 1.0 Apr. 2005 6. Jam Display Sensor layout 4532T502CA Duplex Unit Transport Sensor (PC2/AD)

  • Page 38: Solution

    Duplex Unit Transport Sensor (PC2/AD) WIRING DIAGRAM Ref. Location Step Operations Page Control signal (Electrical Components) Initial checks – – – F~G-7 ☞ M2/AD operation check – (AD-504) C~D-3~4 ☞ PC2/AD sensor check PWB-A/AD PJ4A/AD-5 (ON) (AD-504) Replace PWB-A/AD – – –...

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