SERVICE MANUAL THEORY OF OPERATION SF Ver. 1.0

Transcription

1 SERVICE MANUAL THEORY OF OPERATION Ver..0

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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. Revision mark: To indicate clearly a section revised, show to the left of the revised section. A number within represents the number of times the revision has been made. To indicate clearly a section revised, show in the lower outside section of the corresponding page. A number within represents the number of times the revision has been made. NOTE Revision marks shown in a page are restricted only to the latest ones with the old ones deleted. When a page revised in Ver. 2.0 has been changed in Ver. 3.0: The revision marks for Ver. 3.0 only are shown with those for Ver. 2.0 deleted. When a page revised in Ver. 2.0 has not been changed in Ver. 3.0: The revision marks for Ver. 2.0 are left as they are. 2005/04.0 Issue of the first edition Date Service manual Ver. Revision mark Descriptions of revision

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5 Theory of Operation Ver..0 Apr CONTENTS Outline. Product specification... Composition/Operation 2. SHIFTING UNIT () Construction Exit Position Shifting Mechanism... 4 Outline Composition/Operation i

6 Theory of Operation Ver..0 Apr Composition/Operation Outline Blank page ii

7 Theory of Operation Ver..0 Apr Outline. Product specification Shifting amount 28 mm Paper capacity 250 sheets Power consumption Less than 63 W. Product specification Outline

8 . Product specification Theory of Operation Ver..0 Apr Outline Blank page 2

9 Theory of Operation Ver..0 Apr Composition/Operation 2. SHIFTING UNIT () 2. Construction 2. SHIFTING UNIT () 2 3 Composition/Operation 402M053AB [] Main Board (PWB-A) [3] Shift Motor (M) [2] Home Sensor (S3) 3

10 2. SHIFTING UNIT () Theory of Operation Ver..0 Apr Exit Position Shifting Mechanism Paper is fed into the Shifting Unit along a straight path or shifted from the reference straight path position. This exit position shifting mechanism allows different finishing functions offered by the machine (Non-Sort, Sort, and Group) to be effected. <Straight Feeding> The paper that travels along a straight path is fed straight into the Shifting Unit without being shifted sideways as the Exit Roller turns. Exit Roller Paper Composition/Operation 402M054AA <Shifted Feeding> When the trailing edge of the paper transported to the exit section moves past the Fusing Roller, the Shift Motor is energized to move the Transport Roller sideways. The paper is fed into the Shifting Unit as it is shifted sideways. The Exit Roller is moved sideways by turning the motor forward or backward. The Exit Roller is detected at its home position by a sensor. Shift Motor M Paper Home Sensor S3 402M055AA Exit Roller 402M056AB 4

11 SERVICE MANUAL FIELD SERVICE Ver..0

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13 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. Revision mark: To indicate clearly a section revised, show to the left of the revised section. A number within represents the number of times the revision has been made. To indicate clearly a section revised, show in the lower outside section of the corresponding page. A number within represents the number of times the revision has been made. NOTE Revision marks shown in a page are restricted only to the latest ones with the old ones deleted. When a page revised in Ver. 2.0 has been changed in Ver. 3.0: The revision marks for Ver. 3.0 only are shown with those for Ver. 2.0 deleted. When a page revised in Ver. 2.0 has not been changed in Ver. 3.0: The revision marks for Ver. 2.0 are left as they are. 2005/04.0 Issue of the first edition Date Service manual Ver. Revision mark Descriptions of revision

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15 Field Service Ver..0 Apr CONTENTS General. Product specification... Maintenance 2. Other Disassembly/Adjustment prohibited items Disassembly/Assembly procedure Control Board (PWB-A/OT)... 4 General Troubleshooting 3. Introduction Electrical Components Check Procedure Sensor Switch Solenoid Clutch Motor Malfunction code Trouble code Solution C0B80: Shift Motor Malfunction... Maintenance Troubleshooting i

16 Field Service Ver..0 Apr Troubleshooting Maintenance General Blank page ii

17 Field Service Ver..0 Apr General. Product specification Shifting amount 28 mm Paper capacity 250 sheets Power consumption Less than 63 W. Product specification General

18 . Product specification Field Service Ver..0 Apr General Blank page 2

19 Field Service Ver..0 Apr Maintenance 2. Other 2. Disassembly/Adjustment prohibited items A. Paint-locked Screws 2. Other 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. Red Painted Screws NOTES When the screws are removed, the red paint is coated on the points where readjustment is required. Once the red painted screw is removed or loosened, you should make adjustment. Accordingly check the adjustment items in operation manual and make necessary adjustment. Note that when two or more screws are used on the part in questions, only one representative screw may be marked with red paint. C. Variable Resistors on Board NOTE Do not turn the variable resistors on boards for which no adjusting instructions are given in Adjustment/Setting. Maintenance D. Removal of PWBs NOTES When removing a circuit board or other electrical component, refer to Handling of PWBs and follow the corresponding removal procedures. The removal procedures given in the following omit the removal of connectors and screws securing the circuit board support or circuit board. Where it is absolutely necessary to touch the ICs and other electrical components on the board, be sure to ground your body. 3

20 2. Other Field Service Ver..0 Apr Disassembly/Assembly procedure 2.2. Control Board (PWB-A/OT) PWB-A/OT Maintenance. Remove the Front Cover, Right Cover, and Paper Exit Cover. 4690D006AA 2. Unplug two connectors from the Shift Motor. 4690D00AB 3. Unplug one connector from the copier. 4690D002AA 4

21 Field Service Ver..0 Apr Other 4. Remove two screws and the Control Board Assy. Maintenance 4690D003AB 5. Unplug two connectors. 4690D004AA 6. Remove two screws, two PWB supports, and the Control Board. 4690D005AA 5

22 2. Other Field Service Ver..0 Apr Maintenance Blank page 6

23 Field Service Ver..0 Apr Troubleshooting 3. Introduction 3. Introduction Information required for troubleshooting and steps that must be performed are described in this chapter. 3. Electrical Components Check Procedure If a paper misfeed or malfunction occurs, perform the following operations to check the condition of the electrical components. 3.. Sensor Step Check Result Action Does the input signal of the control board change when the sensor light is interrupted? (H L, L H) NO YES Replace the sensor. Replace the control board. 4025T520AA Troubleshooting 4025T52AA 7

24 3. Introduction Field Service Ver..0 Apr Switch Step Check Result Action Does the input signal (NO) of the control board change from L to H when the switch is activated? NO YES Replace the switch. Replace the control board. NO Not Use COM 4025T523AB 3..3 Solenoid Step Check Result Action Does the output signal of the control board change from H to L when the solenoid is activated? NO YES Replace the control board. Replace the solenoid. Troubleshooting T522AA 3..4 Clutch Step Check Result Action Does the output signal of the control board change from H to L when the clutch is activated? NO YES Replace the control board. Replace the clutch. 4025T528AA 8

25 Field Service Ver..0 Apr Introduction 3..5 Motor Step Check Result Action 2 Does the LOCK signal switch to H when the machine goes into standby? Does the REM signal of the master board change from H to L when the motor is turned on? NO YES NO Replace the control board. Replace the motor. Replace the motor. Replace the control board. GND REM LOCK T526AA Step Check Result Action Does the input signal of the master board change from H to L when the motor is turned on? (The input signal differs depending on the rotation direction.) YES NO Replace the motor. Replace the control board. 4025T525AA Troubleshooting Step Check Result Action Are the relay connector of the motor and the print jack of the control board correctly connected? YES NO Replace the motor or the control board. Connect the connector or the print jack. 4025T527AA 9

26 4. Malfunction code Field Service Ver..0 Apr Malfunction code 4. Trouble code The copier s CPU performs a self-diagnostics function that, on detecting a malfunction, gives the corresponding malfunction code and maintenance call mark on the Touch Panel. 4980P550DA Troubleshooting 0

27 Field Service Ver..0 Apr Malfunction code 4.2 Solution 4.2. C0B80: Shift Motor Malfunction A. Detection Timing Trouble Code C0B80 Description The Home Sensor (S3/OT) is LOW at a timing immediately before the Shift Motor (M/OT) starts turning backward. The Home Sensor (S3/OT) is LOW after the lapse of a given period of time after the Shift Motor (M/OT) has started turning backward. B. Action Shift Motor (M/OT) Home Sensor (PC3/OT) Relevant Electrical Components Control Board (PWB-A/OT) Master Board (PWB-A) Step 2 Operations Check PC3/OT connectors for proper connection and correct as necessary. Check M/OT connectors for proper connection and correct as necessary. Ref. Page WIRING DIAGRAM Control signal Location (Electrical Components) 3 Check M/OT for correct drive coupling and correct as necessary. 4 M/OT operation check 9 D-7 5 PC3/OT sensor check 7 PWB-A/OT PJ3A/OT-3 (ON) D-8 6 Change PWB-A/OT. 7 Change PWB-A. Troubleshooting

28 4. Malfunction code Field Service Ver..0 Apr Blank page Troubleshooting 2