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Canon EF-9, Service Manual

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Canon EF-9 Service Manual Download Page 43

V. MALFUNCTION STATUS TROUBLESHOOTING

V-1

"No paper" status appears when envelopes are set on the envelope feeder.

<Possible causes>

1. Broken paper sensor lever

Action:

Replace the lever.

2. Defective paper sensor

Action:

Replace the paper sensor.

3. Defective envelope feeder driver PCB.

Action:

Replace the envelope feeder driver PCB.

4 - 7

CHAPTER 4

Summary of Contents for EF-9

Page 1: ...SERVICE MANUAL REVISION 0 COPYRIGHT 1999 CANON INC CANON ENVELOPE FEEDER EF 9 REV 0 JAN 1999 PRINTED IN JAPAN IMPRIME AU JAPON RY8 1391 000 JAN 1999 ENVELOPE FEEDER ...

Page 2: ...of this manual should be strictly supervised to avoid disclosure of confidential information Prepared by PERIPHERAL PRODUCTS QUALITY PLANNING DIV PERIPHERAL PRODUCTS TECHNICAL DOCUMENTATION DEPT CANON INC 5 1 Hakusan 7 chome Toride City Ibaraki Pref 302 8501 Japan ...

Page 3: ...ectrical and mechanical systems Chapter 3 The Mechanical System Explanation of mechanical operation disassembly reassembly and adjustment procedures Chapter 4 Troubleshooting Maintenance and servicing reference values and adjustments troubleshooting procedures lubricants and solvents Appendix General circuit diagram etc Information in this manual is subject to change as the product is improved or ...

Page 4: ...r beam printer final pages were printed on DAINIPPON SCREEN MFG CO LTD DT R3100 All graphics were produced with Macromedia FreeHand J and all documents and page layouts were created with QuarkXPress E The video images were captured with SONY degital video camcorder and Radius PhotoDV capture board system and modified with Adobe Photoshop J ...

Page 5: ...A Drive Unit 3 5 IV MAIN PARTS 3 6 A Pick up Roller 3 6 B Lower Separation Roller Upper Separation Roller and Torque Limiter 3 6 V MOTOR SENSOR 3 8 A Locations 3 8 B Pick up Motor 3 8 C Envelope Feeder Paper Sensor 3 9 VI PCB 3 10 A Location 3 10 B Envelope Feeder driver PCB 3 10 CHAPTER 4 TROUBLESHOOTING I PREFACE 4 1 A Malfunction Diagnosis Flowchart 4 1 B Initial Checks 4 3 II PAPER JAMS 4 4 II...

Page 6: ...4 10 C Periodic Service 4 10 D Standard Tools 4 10 E Special Tools 4 10 F Solvents and Oil List 4 11 VIII LOCATION OF CONNECTORS 4 12 APPENDIX I GENERAL CIRCUIT DIAGRAM LIST OF SIGNALS A 1 A General Circuit Diagram A 1 B Input output signals to from Envelope Feeder Driver PCB A 1 ...

Page 7: ...CHAPTER 1 PRODUCT INFORMATION I FEATURES 1 1 II SPECIFICATIONS 1 2 III PARTS OF THE ENVELOPE FEEDER 1 3 IV INSTALLATION 1 5 ...

Page 8: ......

Page 9: ...tion This envelope feeder can be installed in the LBP 2460 printer and LBP 3260 printer 2 Continuous printing The maximum of 100 envelopes can be set on the envelope feeder for large volume continuous printing 1 1 CHAPTER 1 ...

Page 10: ...to 176mm width x 250mm length maximum sized envelopes 4 Envelope type Commercial 10 C5 DL MONARCH and B5 ISO 5 Capacity 73mm stack or 100 envelopes whichever the least 6 Dimensions 368mm W x 320mm D x 140mm H 7 Weight About 3kg 8 Power supply DC24V supplied from the printer Specifications are subject to change with product improvement 1 2 CHAPTER 1 ...

Page 11: ...III PARTS OF THE ENVELOPE FEEDER A External View Figure 1 3 1 1 Connector 2 Positioning pins 3 Front guides 4 Weight 5 Rear guides 6 Expansion tray 1 3 CHAPTER 1 ...

Page 12: ...B Cross Sectional View Figure 1 3 2 1 Feed rollers 2 Separation guide 3 Envelope feeder paper sensor lever 4 Pick up rollers 5 Separation rollers 1 4 CHAPTER 1 ...

Page 13: ...llows the procedures below to install the envelope feeder in the printer 1 Open the envelope feeder packaging 2 Take off the plastic bag and peel the tape off Check that none of the covers have been scratched or deformed during shipment 3 Remove the packing materials from the envelope feeder 4 Open the multi purpose tray and remove the envelope feeder slot cover 5 Holding the envelope feeder in bo...

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Page 15: ...ut and inactive at ground level indicating that the signal is not being output A signal that is L or has a slash in front of its name is active at ground level and inactive at the supply voltage level There is a microcomputer in this printer But as the internal operation of the microcomputer cannot be checked an explanation of the operation of the microcomputer has been left out As it is assumed t...

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Page 17: ...es with the DC controller in the printer via the gate array The CPU drives the pick up motor in response to the pick up commands 1st Start and 2nd Start sent from the DC controller 24VDC is supplied to the envelope feeder from the printer 5VDC for the ICs and sensors is generated within the envelope feeder driver PCB from this 24VDC The flow of the signals between the envelope feeder and the print...

Page 18: ...HAPTER 2 Envelope feeder driver PCB Pick up motor SMT1 A A B B J932 1 2 3 4 Pick up motor drive signal To printer 24VA J931 1 2 3 4 PS931 L when sensor detects paper J24 1 2 3 4 ENV0 ENV1 Command input signal Status output signal Envelope feeder paper sensor ...

Page 19: ... and feeds the envelope into the printer The envelope is stopped when it is 16mm past the registration paper sensor PS1 Following this the envelope feeder driver PCB rotates the pick up motor counterclockwise for about 1 sec ond in response to the 2nd Start command sent from the DC controller to feed the envelope 2 3 CHAPTER 2 PS1 Transfer charging roller Photosensitive drum PS931 SMT11 Envelope f...

Page 20: ...C Main motor MT1 Envelope feeder pick up motor SMT11 Pick up command Registration sensor PS1 Fixing unit delivery sensor PS1403 Unit Seconds Power ON STBY INTR PRINT STBY LSTR About 1 0 2nd Start About 1 1st Start 2nd Start 1st Start Forward Backward About 0 1 About 1 About 2 7 ...

Page 21: ...s in the direction of the solid arrow as shown in the middle figure of Figure 2 2 3 When two or more envelopes are fed simultaneously low friction between the envelopes results in weak rotational force being transmitted to the upper separation roller The upper sep aration roller therefore rotates with its own rotational force which is in the opposite direction to the pick up direction shown by the...

Page 22: ...C Paper Jam Detection The paper jam detection at the time of paper pick up feed from the envelope feeder is performed by the printer Refer to the Service Manual for the printer for details 2 6 CHAPTER 2 ...

Page 23: ...CHAPTER 3 THE MECHANICAL SYSTEM I PREFACE 3 1 II EXTERNALS 3 2 III MAIN UNITS 3 5 IV MAIN PARTS 3 6 V MOTOR SENSOR 3 8 VI PCBs 3 10 ...

Page 24: ......

Page 25: ...the electrical outlet and remove the envelope feeder from the printer before servicing the envelope feeder 2 Assembly is the reverse of disassembly unless otherwise specified 3 Note the lengths diameters and locations of screws as you remove them When reassem bling the envelope feeder be sure to use them in their original locations 4 Do not operate the envelope feeder with any parts removed 5 Disc...

Page 26: ...ver Lower cover Right front guide Front cover Figure 3 2 1 Follow the procedures below to remove the cover s as required when cleaning inspecting or repairing inside the printer The procedures for the covers which can be removed simply by removing screws without removing other parts are omitted CHAPTER 3 ...

Page 27: ...ither hold the bottom of the PCB with your hand or tape it to the frame 2 Front Cover 1 Remove the screw and take off the front cover Screw Front cover Figure 3 2 3 3 Lower Cover 1 Remove the rear and front covers 2 Remove the 2 screws and take off the lower cover Screws Lower cover Figure 3 2 4 4 Upper Cover 1 Remove the rear and front covers 2 Remove the screw Screw Figure 3 2 5 3 3 CHAPTER 3 ...

Page 28: ...sure to follow the position adjustment directions refer to Page 4 8 when re installing 2 Check that the separation roller pressure spring is correctly installed when reassembling Separation roller pressure spring Figure 3 2 7 5 Removal of the Envelope Side Guides Left front guide Left rear guide Right rear guide Right front guide Figure 3 2 8 1 Remove the rear front lower and upper covers 2 Remove...

Page 29: ... Unit 1 Remove the pick up motor following steps 1 to 5 on Page 3 8 2 Remove the screw Screw Figure 3 3 1 3 Remove the drive unit by taking off the 2 E rings and 3 screws E rings Screws Drive unit Figure 3 3 2 3 5 CHAPTER 3 ...

Page 30: ...4 Remove the 2 E rings and 2 bushings and then take out the pick up roller shaft B Lower Separation Roller Upper Sepa ration Roller and Torque Limiter 1 Remove the pick up motor following steps 1 to 5 on Page 3 8 2 Remove the drive unit 3 Remove the 2 E rings and 2 bushings then take out the separation lower roller shaft Remove the lower separation roller from the shaft E rings Bushings Lower sepa...

Page 31: ...4 Remove the separation roller shaft from the guide Then take out the upper sep aration roller and torque limiter off the shaft Guide Upper separation roller Torque limiter Figure 3 4 3 3 7 CHAPTER 3 ...

Page 32: ... 5 1 B Pick up Motor 1 Remove the rear front lower and upper covers 2 Remove the envelope side guides follow ing steps 1 and 2 on Page 3 4 3 Remove the C ring the gear and then the rack C ring Gear Rack Figure 3 5 2 4 Disconnect the connector Connector Figure 3 5 3 3 8 CHAPTER 3 ...

Page 33: ...tor Screw Pick up motor Figure 3 5 4 Note After fastening the guides to the rack attach the gear by spreading the guides apart C Envelope Feeder Paper Sensor 1 Remove the envelope feeder driver PCB following steps 1 to 4 on Page 3 10 3 9 CHAPTER 3 ...

Page 34: ... 1 Remove the rear front lower and upper covers 2 Remove the envelope guides 3 Remove the 2 connectors and the screw Connectors Screw Figure 3 6 2 4 After removing the sensor lever take out the envelope feeder driver PCB Sensor lever Envelope feeder driver PCB Figure 3 6 3 3 10 CHAPTER 3 ...

Page 35: ... 1 II PAPER JAMS 4 4 III PAPER TRANSPORT TROUBLESHOOTING 4 5 IV MALFUNCTION TROUBLESHOOTING 4 6 V MALFUNCTION STATUS TROUBLESHOOTING 4 7 VI MEASUREMENT AND ADJUSTMENT 4 8 VII MAINTENANCE AND SERVICING 4 10 VIII LOCATION OF CONNECTORS 4 12 ...

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Page 37: ...problem following the action pro cedures described in this chapter Make sure the following points at the execution of troubleshooting Be sure that the connector has no poor contact when measuring the voltage at the specified ter minal of the connector Before handling PCBs be sure to touch metal part of the printer to discharge static electricity as it can cause damage to the PCBs In some cases the...

Page 38: ... Do you make paper pick up test Execute a paper pick up test Occurs paper jam Refer to the item paper jams Delivers paper normally Refer to the item paper transport troubleshooting Refer to the item malfunction status troubleshooting Displays operator call or service call Displays operator call or service call Refer to the item malfunction status troubleshooting Yes No ...

Page 39: ... used b The envelopes are not damp 3 Condensation During winter particularly when moving the envelope feeder into a warm room from a cold loca tion such as a warehouse various problems can occur due to condensation in the envelope feed er If condensation appears either wipe the parts with dry cloth or leave the envelope feeder ON for 10 to 20 minutes 4 3 CHAPTER 4 ...

Page 40: ...s to the envelopes too strongly 2 Worn or deformed envelope feeder rollers Action Replace any worn or deformed rollers 3 Damaged gears Action Check the gears and replace any damaged gears 4 Defective pick up motor Action Using the printer driver tester rotate the envelope feeder pick up motor Replace the motor if it does not rotate 5 Defective envelope feeder driver PCB Action Replace the envelope...

Page 41: ...proper position Replace it if deformed 5 Defective torque limiter of the separation roller Action Replace the torque limiter III 2 Wrinkles Possible causes 1 Worn or deformed rollers Action Check the rollers in the pick up and feed areas Replace any worn or deformed rollers III 3 Bent leading edge Possible causes 1 Scarred or deformed feed guide Action Check the paper path and replace the feed gui...

Page 42: ...931 on the envelope feeder driver PCB correctly 3 Defective envelope feeder driver PCB Action Replace the envelope feeder driver PCB IV 2 Pick up motor failure Possible causes 1 Poor contact in the pick up motor drive signal line connector Action Reconnect the connector J932 on the envelope feeder driver PCB correctly 2 Defective pick up motor Action Replace the pick up motor 3 Defective envelope ...

Page 43: ...en envelopes are set on the envelope feeder Possible causes 1 Broken paper sensor lever Action Replace the lever 2 Defective paper sensor Action Replace the paper sensor 3 Defective envelope feeder driver PCB Action Replace the envelope feeder driver PCB 4 7 CHAPTER 4 ...

Page 44: ...ved the separation guide only for unavoidable reason or if you need to replace it due to deformation etc Install the separation guide 1 5mm from the lower separation roller Adjust its position by inserting the thickness gauges 1mm and 0 5mm into the gap between the separation guide and the lower separation roller Figure 4 6 1 4 8 CHAPTER 4 1 5mm Lower separation roller Thickness gauge Cross sectio...

Page 45: ...oes not require electrical adjustment in the field C Variable resistors LEDs test pins jumpers and switches on PCBs No variable resistors LEDs test pins jumpers or switches are required for after sales service of this envelope feeder 4 9 CHAPTER 4 ...

Page 46: ...ols required to service the envelope feeder is the same as for the printer E Special Tools In addition to the standard tools the following special tools are required for servicing the enve lope feeder Table 4 7 1 Note Ranks A Tools used for part replacements or adjustment on site B Tools used on site and in regions This category includes tools useful for failure analysis and those are difficult to...

Page 47: ...Tool No CK 8003 100 ml bottle Tool No HY9 0007 20 g tube Alcohol ethyl pure or denatured or isopropyl pure or denatured Lubricating oil Lubricating agent 1 2 3 C2H5OH CH3 2CHOH Petroleum mineral oil Special oil Special solid lubricating material Lithium soap Cleaning plastic rubber external parts Apply between gear and shaft Apply to gears ...

Page 48: ...VIII LOCATION OF CONNECTORS Figure 4 8 1 4 12 CHAPTER 4 J24 J932 J931 ...

Page 49: ...APPENDIX I GENERAL CIRCUIT DIAGRAM LIST OF SIGNALS A 1 ...

Page 50: ......

Page 51: ...Status output signal 4 GND J932 1 A O Pick up motor drive signal 2 A O Pick up motor drive signal 3 B O Pick up motor drive signal 4 B O Pick up motor drive signal Connector Pin Abbreviation I O Logic Signal name Envelope feeder driver PCB Envelope feeder paper sensor Envelope feeder pick up motor SMT11 M PS931 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 J932 J931 J24 24VA ENV0 ENV1 GND A A B B ...

Page 52: ......

Page 53: ...pared by PERIPHERAL PRODUCTS QUALITY PLANNING DIV PERIPHERAL PRODUCTS TECHNICAL DOCUMENTATION DEPT CANON INC Printed in Japan REVISION 0 JAN 1999 5 1 Hakusan 7 chome Toride City Ibaraki Pref 302 8501 Japan ...

Page 54: ...PRINTED IN JAPAN IMPRIME AU JAPON 0199AT0 70 CANON INC The printing paper contains 70 waste paper ...

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