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Canon C-EXV 11 - User Manual

Canon C-EXV 11
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Aug 23 2004
Service Manual
Drum Unit
C-EXV 11/12

Table of Contents

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Overview

  1. Turning Off the Host Machine (0007-3341)
  2. Replacing the Drum Unit (0007-3185)
  3. After Replacing the Drum Unit (APVC correction) (0007-3190)
  4. Attaching the Counter Label (0007-3345)

This document is a Service Manual for the Canon Drum Unit C-EXV 11/12, published on August 23, 2004. It provides detailed instructions for the installation and maintenance of the drum unit, intended for qualified service personnel.

The manual begins with an "Application" section, clarifying that it is issued by Canon Inc. for individuals trained in technical theory, installation, maintenance, and repair of their products. It covers all regions where the products are sold, acknowledging that some information might not be applicable to every locality. The "Corrections" section notes that the manual may contain technical inaccuracies or typographical errors due to product improvements or changes, and Canon will issue technical information or new editions as needed. It also includes standard disclaimers regarding local law and intellectual property, stating that product and company names are registered trademarks and that the manual is copyrighted, prohibiting reproduction without Canon's written consent. A "Caution" advises strict supervision to prevent disclosure of confidential information.

The "Symbols Used" section explains the various symbols employed throughout the documentation to convey specific information:

  • ! indicates a non-specific item, potentially a Note, Caution, or Warning.
  • 4 signifies an item requiring care to avoid electric shocks.
  • ☑ denotes an item requiring care to prevent combustion (fire).
  • → indicates an item prohibiting disassembly to avoid electric shocks or other problems.
  • 28 represents an item requiring disconnection of the power plug from the electric outlet.
  • Memo is used for notes that aid understanding of the topic.
  • REF. points to reference material that assists in understanding the topic.
  • וייון (Service Mode) describes a service mode.
  • Error provides details about the nature of an error indication.

The "Introduction" outlines the general rules applied throughout the Service Manual. Each chapter explains specific functions and the relationship between electrical and mechanical systems, with reference to operational timing. Diagrams use a solid line to represent mechanical drive paths, and an arrow with a signal name to indicate the direction of an electric signal. The phrase "turn on the power" refers to activating the power switch, closing the front door, and closing the delivery unit door, which collectively supply power to the machine. In digital circuits, '1' signifies a "High" voltage level, while '0' indicates "Low." An asterisk (e.g., "DRMD*") means the DRMD signal activates when '0'. The manual focuses on operations from sensors to the DC controller PCB input and from the DC controller PCB output to the loads, rather than internal microprocessor mechanisms, as these cannot typically be checked in the field. It also states that descriptions are subject to change for product improvement and that service persons are expected to be familiar with the manual and relevant Service Information bulletins to identify and isolate machine faults.

The "Contents" section lists the main topics covered in Chapter 1, "Installation":

  • 1.1 Installation Procedure
    • 1.1.1 Turning Off the Host Machine
    • 1.1.2 Replacing the Drum Unit
    • 1.1.3 After Replacing the Drum Unit (APVC correction)
    • 1.1.4 Attaching the Counter Label

Chapter 1, "Installation," details the step-by-step process for replacing the drum unit.

Turning Off the Host Machine (0007-3341)

Before any work, the host machine must be properly shut down:

  1. Hold the control panel power switch for 3 seconds or more.
  2. Follow the on-screen shutdown sequence until the machine is ready to be turned off.
  3. Turn off the main power switch.
  4. Disconnect the power cable from the wall outlet.

Replacing the Drum Unit (0007-3185)

This section provides detailed instructions for replacing the drum unit, accompanied by figures (F-1-1 to F-1-15).

  1. Open the upper front cover [1] (F-1-1).
  2. Remove the face rubber piece [1] and two screws [2]. Slide the front cover unit [3] to the left to detach it (F-1-2).
  3. Remove the waste toner box [1] (F-1-3).
  4. Open the right door [1] (F-1-4).
  5. Remove the locking screw [1] from the locking lever (F-1-5).
  6. Shift the locking lever [1] of the developing assembly to the left to free the developing assembly (F-1-6).
  7. Remove the screw [1] (F-1-7).
  8. Remove the drum [1] (F-1-8, F-1-9).
  9. Take out the new drum unit from its wrappings.
  10. Remove the unlocking member [1] from the new drum unit (F-1-10).
  11. Insert the new drum unit [1] into the machine (F-1-11).
    • Caution: Do not touch the surface of the photosensitive drum. Ensure the photosensitive drum surface is not exposed to light for extended periods. Do not touch the spur of the drum unit.
  12. Secure the new drum unit in place using a screw [1] (F-1-12).
  13. Shift the locking lever [1] of the developing assembly to the right to lock it in place (F-1-13).
  14. Secure the locking lever in place using a screw [1].
  15. Close the right door.
  16. Fit the waste toner box.
  17. Using two screws [2], mount the front cover unit [3]; then, fit the face rubber member [1] (F-1-14).
    • Note: Ensure the front cover is slid to the right so its claws align with the host machine.
  18. Close the upper front cover [1] (F-1-16, F-1-17).

After Replacing the Drum Unit (APVC correction) (0007-3190)

After drum unit replacement, an APVC (Automatic Process Value Control) correction is required:

  1. Connect the power plug and turn on the main power unit.
  2. In the host machine's service mode, select COPIER > FUNCTION > DPC > D-GAMMA.
  3. Press the OK key.
    • The machine will pick up paper from cassette 1 (regardless of paper size).
    • If cassette 1 is empty, the machine will search lower cassettes for paper.
    • The paper will be discharged blank to complete the APVC correction.
  4. Press the Reset key twice to exit service mode.

Attaching the Counter Label (0007-3345)

To track drum usage:

  1. Press the Counter key on the control panel to check the total counter reading.
  2. Press the Close key on the LCD to return to the initial screen.
  3. Record the date and the counter reading on the drum counter label [1] (F-1-18).
  4. Open the upper front cover [1] (F-1-19).
  5. Attach the counter label [2] behind the upper front cover [1] (F-1-20).
  6. Close the upper front cover [1] (F-1-21).

Canon C-EXV 11 Specifications

General IconGeneral
BrandCanon
ModelC-EXV 11
CategoryDrums
LanguageEnglish