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Canon K1 Service Manual

Buffer pass unit
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Buffer Pass Unit-K1
Service Manual
Produt Outline
Technology
Parts Replacement and Cleaning Procedure
Installation
Appendix
1
2
3
4

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Table of Contents
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   Summary of Contents for Canon K1

  • Page 1 Buffer Pass Unit-K1 Service Manual Produt Outline Technology Parts Replacement and Cleaning Procedure Installation Appendix...
  • Page 2 This manual is copyrighted with all rights reserved. Under the copyright laws, this manual may changes in the contents of this manual over a long or short period, Canon will issue a new not be copied, reproduced or translated into another language, in whole or in part, without the edition of this manual.
  • Page 3 Explanation of Symbols Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with reference to the timing of The following symbols are used throughout this Service Manual. operation. In the diagrams, represents the path of mechanical drive;...
  • Page 4: Table Of Contents

    Contents Removing the Buffer Cooling Fan --------------------------------------------- 3-7 Removing the Buffer Feeding Motor ------------------------------------------ 3-8 Removing the Decurler Motor -------------------------------------------------- 3-9 Removing the Decurler Roller -------------------------------------------------3-10 Safety Precautions Installation Notes Before it Works Serving ---------------------------------------------0-8 How to Check this Installation Procedure -------------------------------4-2 When using the parts included in the package ----------------------------- 4-2 Produt Outline Symbols in the illustration -------------------------------------------------------- 4-2...
  • Page 5: Safety Precautions

    Safety Precautions ■ Notes Before it Works Serving...
  • Page 6: Notes Before It Works Serving

    Safety Precautions > Notes Before it Works Serving Notes Before it Works Serving Caution: At servicing, be sure to turn off the power source according to the specified steps and disconnect the power plug. Caution: Do not turn off the power switch when downloading is under way. Turning off the main power switch while downloading is under way can disable the machine.
  • Page 7: Produt Outline

    Produt Outline ■ Specifications ■ Names of Parts Produt Outline...
  • Page 8: External View

    Produt Outline > Names of Parts > Cross Section Specifications Cross Section Item Description Remarks Placement Center Feed Speed 139.05(1/1speed), 69.5 (1/2speed)mm/ Transfer from the host machine Installation Build-in type Power Supply Supplied by the host machine Option Unavailable T-1-1 Names of Parts F-1-2 External View...
  • Page 9: Technology

    Technology ■ Decurler/Compression amount control ■ Latch mechanism ■ Jam detection ■ Servicing Work Technology...
  • Page 10: Basic Configuration

    Technology > Basic Configuration > Drive Configuration Basic Configuration Drive Configuration The following is a diagram showing the drive system of the buffer path: Functional Configuration The buffer unit consists of the following major components: F-2-1 F-2-2 Mark Name Buffer Pass Cooling Fan Mark Name Buffer Pass Decurler Motor...
  • Page 11: Controls

    Technology > Controls > Decurler/Compression amount control > Overview Controls Driving the Decurler Motor rotates the Decurler Adjustment Cam (operates the compression amount adjustment member), which changes the amount of pressure (compression amount) applied by the Decurler Roller and the Hard Roller. Decurler/Compression amount control compression amount ■...
  • Page 12: Latch Mechanism

    Technology > Controls > Servicing Work > Periodically replaced / consumable parts Latch mechanism Jam detection ■ Overview ■ Overview There is a latch mechanism in the Buffer Lower Cover, and releasing the latch opens the Sensors that detect jam in the Buffer Path are shown below. cover in a downward direction.
  • Page 13: Parts Replacement And Cleaning Procedure

    Parts Replacement and Cleaning Procedure ■ List of Parts ■ Removing the Buffer Pass Unit ■ Removing the Upper Cover ■ Removing the Lower Cover ■ Removing the Buffer Driver PCB ■ Removing the Buffer Cooling Fan ■ Removing the Buffer Feeding Motor ■...
  • Page 14: Motor/Sensor/Pcb

    Parts Replacement and Cleaning Procedure > Removing the Buffer Pass > Removing the Buffer Pass Unit List of Parts Removing the Buffer Pass Motor/Sensor/PCB Removing the Buffer Pass Unit Procedure 1) Open the Front Cover, Right Lower Cover, and Right Door. F-3-1 F-3-2 Symbol...
  • Page 15 Parts Replacement and Cleaning Procedure > Removing the Buffer Pass > Removing the Buffer Pass Unit 2) Remove the Upper Front Cover. 4) Disconnect the 2 connectors [1], and free the harness from the guide. • 2 Screws (TP) [1] •...
  • Page 16 Parts Replacement and Cleaning Procedure > Removing the Buffer Pass > Removing the Buffer Pass Unit 6) Open the guide of the Buffer Pass Unit, and remove the 2 screws (binding) [1]. 8) Disconnect the connector [1] and remove the Reuse Band [2]. •...
  • Page 17: Removing The Upper Cover

    Parts Replacement and Cleaning Procedure > Removing the Buffer Pass > Removing the Lower Cover Removing the Upper Cover Removing the Lower Cover Preparation Preparation 1) Remove the Buffer Pass Unit from the host machine. 1) Remove the Buffer Pass Unit from the host machine. 2) Remove the Upper Cover.
  • Page 18 Parts Replacement and Cleaning Procedure > Removing the Buffer Pass > Removing the Lower Cover 3) Turn over the Buffer Pass Unit, and remove the stopper [1]. 5) Remove the Lower Cover. • 1 Screw (Binding) [2] • 3 Screws (Binding) [1] •...
  • Page 19: Removing The Buffer Driver Pcb

    Parts Replacement and Cleaning Procedure > Removing the Buffer Pass > Removing the Buffer Cooling Fan Removing the Buffer Driver PCB Removing the Buffer Cooling Fan Preparation Preparation 1) Remove the Buffer Pass Unit from the host machine. 1) Remove the Buffer Pass Unit from the host machine. 2) Remove the Upper Cover.
  • Page 20: Removing The Buffer Feeding Motor

    Parts Replacement and Cleaning Procedure > Removing the Buffer Pass > Removing the Buffer Feeding Motor Removing the Buffer Feeding Motor 3) Remove the gear. Preparation 1) Remove the Buffer Pass Unit from the host machine. Procedure 1) Disconnect the 8 connectors [1], and free the harness from the Wire Saddle [2]. F-3-23 4) Remove the Drive Belt Retainer [1], Drive Belt [2], and Pressure Spring [3].
  • Page 21: Removing The Decurler Motor

    Parts Replacement and Cleaning Procedure > Removing the Buffer Pass > Removing the Decurler Motor Removing the Decurler Motor 5) Remove the Decurler Motor 1. • 2 Screws (Binding) [1] Preparation 1) Remove the Buffer Pass Unit from the host machine. 2) Remove the Upper Cover.
  • Page 22: Removing The Decurler Roller

    Parts Replacement and Cleaning Procedure > Removing the Buffer Pass > Removing the Decurler Roller 3-10 Removing the Decurler Roller 3) Remove the E-ring [1], gear [2], Parallel Pin [3], and bush [4]. Preparation 1) Remove the Buffer Pass Unit from the host machine. 2) Remove the Upper Cover.
  • Page 23 Parts Replacement and Cleaning Procedure > Removing the Buffer Pass > Removing the Decurler Roller 3-11 6) Remove the 2 E-rings [1] and 2 Belt Retainers [2]. 8) Remove the gear [1], washer [2], and gear [3]. F-3-31 F-3-33 7) Remove the 2 belts [1], gear [2], gear [3], gear [4], spring [5], and Spring Support Plate [6]. 9) Remove the Gear Unit [1].
  • Page 24 Parts Replacement and Cleaning Procedure > Removing the Buffer Pass > Removing the Decurler Roller 3-12 11) Remove the Decurler Roller [1]. CAUTION: During installation, be sure to align the cut-offs of the plate with the bushes. F-3-37 F-3-35 10) Remove the E-ring [1]. F-3-36 3-12 Parts Replacement and Cleaning Procedure >...
  • Page 25: Installation

    Installation ■ How to Check this Installation Procedure ■ Product Name ■ Making Pre-installation Checks ■ Cecking the Contents ■ Installation Outline Drawing ■ UnpackingUnpacking ■ Check Item when Turning OFF the Main Power ■ Installation Procedure Installation...
  • Page 26: How To Check This Installation Procedure

    When using the parts included in the package product is sold, the following names in parenthesis may be registered instead. • Buffer Pass Unit-K1 (F280300) A symbol is described on the illustration in the case of using the parts included in the package of this product.
  • Page 27: Cecking The Contents

    Installation > Check Item when Turning OFF the Main Power Cecking the Contents Installation Outline Drawing [1] Buffer Pass Unit X 1 [2] Lattice Base X 1 [3] Right Rail X 1 [4] Left Side Rail X 1 [5] Cable Cover X 1 [6] Internal Rear Right Cove X 1 [7] Side Cover (Left) X 1...
  • Page 28: Installation Procedure

    Installation > Installation Procedure Installation Procedure 3) Remove the Reader Left Cover. (The removed cover will not be used). • 2 Screws (The removed screws will be used in step 25) • 2 Claws 1) Install the Lattice Unit to the Buffer Pass Unit. •...
  • Page 29 Installation > Installation Procedure CAUTION: 5) Remove the Front Upper Cover. When installing the 3 Way Unit simultaneously, skip steps 6 and 7. • 2 Screws • 2 Protrusions 6) Remove the Reverse Trailing Edge Guide. • 2 Claws Claw Protrusion F-4-10 7) Remove the Second Delivery Cover2.
  • Page 30 Installation > Installation Procedure Remove the Inner Rear Cover 2 (The removed cover will not be used). Cut off [A] part and [B] part with nippers. • 2 Screws (The removed screws will not be used.) • 3 Protrusions Protrusion F-4-12 9) Install the Right Rail.
  • Page 31 Installation > Installation Procedure Remove the screw securing the Left Rear Cover. (The removed screw will not be Install the Buffer Pass Unit part along the rail [B]. used). CAUTION: 1. Before installing the Buffer Pass Unit, let the Harness dangle down as shown in the figure.
  • Page 32 Installation > Installation Procedure Open the guide, and install the 2 screws. Close the guide. • 2 Screws (Binding; M4x8) Close the Front Cover. Connect the harness to the host machine, and install the Reuse Band. Reuse Band F-4-22 Connect the 2 connectors, and route the harness along the Harness Guide. F-4-20 Secure the Left Rear Cover and the Buffer Pass Unit together.
  • Page 33 Installation > Installation Procedure Install the Cable Cover. Install the Side Cover (Left). • 1 Claw • 2 Screws (Use the screws removed in step 3.) • 2 Protrusions • 3 Hooks Claw Hook Hook Protrusion Hook F-4-26 F-4-24 Clean the affixing side with lint-free paper moistened by alcohol. Install the Internal Rear Right Cover.
  • Page 34: Appendix

    Appendix ■ Service Tools ■ General Circuit Diagram...
  • Page 35: Solvents And Oils

    Appendix > Service Tools > Special Tools 4-11 Service Tools Solvents and Oils Name Uses Composition Remarks Conducting Lubrication; e.g., Fluorine poly wthyl Tool No: FY9-6021(20 g) edge of decurler grease cam. T-4-1 Special Tools None 4-11 Appendix > Service Tools > Special Tools...
  • Page 36: General Circuit Diagram

    4-12 General Circuit Diagram General Circuit Diagram Buffer-Path-UNIT J4025DH 9 10 11 J855DH J807 J901D 18 17 16 15 14 13 12 11 10 9 J9031 11 10 9 J9076 J901 J903 Buffer Driver PCB J910 J905 J902 J909 J904 J906 J907 J9075F...