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Canon Imageclass Mf7470 User Guide

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    Maintenance
    10‑2
    
    Cleaning the Machine
    Note the following before cleaning your machine:
    Make sure no document is stored in memory, then turn off the main power switch 
    and disconnect the power cord.
    Use a soft cloth to avoid scratching the components.
    Do not use tissue paper, paper towels, or similar materials for cleaning; they can 
    stick to the components or generate static charges.
    Never use volatile liquids such as thinners, benzene, acetone, or any other chemical cleaner to clean the 
    machine. These can damage the machine components.
    Exterior
    –
    –
    –
    1 Turn off the main power switch 
    and disconnect the power cord.
    2 Wipe the machine's exterior 
    with a clean, soft, lint-free cloth 
    dampened with water or diluted 
    dishwashing detergent solution.
    3 Wait for the machine to dry, then 
    reconnect the power cord and turn 
    on the main power switch.
     
    						
    							
    10‑3
    Maintenance
    
    Fixing Unit
    If black streaks appear on the printed page, the fixing unit in the main unit may be dirty. 
    Should this occur, use the Fixing Unit Cleaning function to clean the fixing unit. The fixing 
    unit should also be cleaned each time the cartridge is replaced. Print the cleaning pattern 
    on LTR paper for cleaning the fixing unit.
    1 Press  (Additional Functions).
    2 
    3 
    4 
    The cleaning paper is printed. You will use 
    this paper as the cleaning paper.
    5 Open the stack bypass.
     
    						
    							
    Maintenance
    10‑4
    
    6 Load the cleaning paper with the 
    printed side facing up, inserting 
    the white edge into the stack 
    bypass first.
    7 
    ① Select [LTR].
    ②  Press [Next].
    8 
    ①  Select [Plain].
    ②  Press [OK].
    9 
    While the fixing unit is being cleaned, the 
    screen below appears.
    Cleaning the fixing unit takes 
    approximately 100 seconds.
    The cleaning process cannot be canceled. 
    Please wait until it is completed.
    The display returns to the Adjustment/
    Cleaning screen.
    10 
    11 
    The cleaning paper is printed.
    –
    –
     
    						
    							
    10‑5
    Maintenance
    
    12 Load the cleaning paper with the 
    printed side facing down, inserting 
    the white edge into the stack 
    bypass first.
    13 Repeat steps 7 to 9 to clean the 
    fixing unit.
    14 Press [Done] repeatedly until the 
    Basic Features screen appears.
    Discard the cleaning sheets after use.
     
    						
    							
    Maintenance
    10‑6
    
    Scanning Area
    Keep the scanning area clean to avoid dirty copies or faxes to be sent.
    Platen Glass and Underside of the Feeder
    When cleaning the machine, first turn off the main power switch, and disconnect the power cord. Failure to 
    observe these steps may result in a fire or electrical shock.
    If the platen glass or the underside of the feeder is dirty, the origina\
    l may not be scanned clearly, or the size of 
    the original may be detected incorrectly.
    Ô
    1 Clean the platen glass and the 
    underside of the feeder with a 
    cloth dampened with water, and 
    then wipe them clean with a soft, 
    dry cloth.
    Do not dampen the cloth too much, as 
    this may damage the original or break the 
    machine.
     
    						
    							
    10‑7
    Maintenance
    
    Manual Feeder Cleaning
    If your originals have black streaks or appear dirty after scanning them through the feeder, 
    this may be caused by pencil writing rubbing off the originals and onto the roller. Perform 
    this feeder cleaning procedures to clean the feeder scanning area, film, and rollers.
    When cleaning the machine, first turn off the main power switch, and disconnect the power cord. Failure to 
    observe these steps may result in a fire or electrical shock.
    Do not dampen the cloth too much, as this may damage the original or break the machine.
    If the feeder scanning area is dirty, it may result in a paper jam or bl\
    emished print output.
    Spin the rollers while cleaning them.
    Ô
    –
    –
    1 Open the feeder cover.
    2 Clean the rollers (a total of three 
    places) inside the feeder cover 
    with a cloth dampened with water. 
    Then wipe the area with a soft, dry 
    cloth.
    3 Open the inner cover (A), holding it 
    by its front tab.
    4 Clean the rollers (A) inside the 
    inner cover with a cloth dampened 
    with water. Then wipe the area 
    with a soft, dry cloth.
     
    						
    							
    Maintenance
    10‑8
    
    5 Clean the transparent plastic part 
    of the inner cover with a cloth 
    dampened with water. Then wipe 
    the area with a soft, dry cloth.
    6 Close the inner cover.
    Be careful not to get your fingers caught.
    7 Close the feeder cover.
    Be careful not to get your fingers caught.
    8 Open the feeder.
    9 Clean the feeder scanning area (A) 
    and the document feeding roller 
    (B), with a cloth dampened with 
    water. Then wipe the area with a 
    soft, dry cloth.
     
    						
    							
    10‑9
    Maintenance
    
    10 Close the feeder.
    Be careful not to get your fingers caught.
    Automatic Feeder Cleaning
    If your originals have black streaks or appear dirty after scanning them through the feeder, 
    clean the rollers of the feeder by repeatedly feeding blank sheets of paper through it.
    It takes approximately 20 seconds to clean the feeder.
    Ô
    1  Press  (Additional Functions).
    2 
    3 
     
    						
    							
    Maintenance
    10‑10
    
    4 
    ① Place 10 sheets of blank LTR paper into the 
    feeder, then press [OK].
    While the feeder is being cleaned, the 
    screen below appears.
     
    5  Press [Done] repeatedly until the 
    Basic Features screen appears.
     
    						
    							
    10‑11
    Maintenance
    
    Transfer Roller
    If the backside of the printed paper is smudged, the transcription roller in the main unit 
    may be dirty. Should this occur, use the Transfer Roller Cleaning function to clean the 
    transcription roller.
    Ô
    1 Press  (Additional Functions).
    2 
    3 
    4 
    While the transfer roller is being cleaned, the 
    screen below appears.
     
    5 Press [Done] repeatedly until the 
    Basic Features screen appears.
     
    						
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