If the document glass or document backplate
                        sheet becomes dirty, the dirt will appear as dirty spots, coloured
                        lines, or white lines in the scanned image. Keep these parts clean
                        at all times.
Wipe the parts with a clean, soft cloth.
If necessary, moisten the cloth with water or a small amount
                        of neutral detergent. After that, wipe with a clean dry cloth.
Examples
                           of lines in the image
                     
                     Document
                           glass
                     
                     Document
                           backplate sheet
                     
                     SCANNING AREA
                     If black lines or white lines appear in images scanned
                        using the automatic document feeder, clean the scanning area(the thin
                        long glass next to the document glass).
To clean this part, use the glass cleaner that is stored in
                        the automatic document feeder. After using the glass cleaner, be
                        sure to return it to its storage position.
                     
                        Open the automatic document feeder and remove the glass
                           cleaner.
                        
                        Clean the document scanning area on the document glass
                           with the glass cleaner.
One scanning area is on the document glass and the other is
                        inside the automatic document feeder.
                        Open the scanning area cover on the automatic document
                           feeder.
Push in the release switch to release the cover.
                        Clean the scanning area in the automatic document feeder.
                        
                        Close the cover.
                        
                        Replace the glass cleaner.
                        
                      
                   
                  
                     When the laser unit inside the machine becomes
                        dirty, line patterns (coloured lines) may form in the printed image.
Identifying
                           lines (coloured lines) caused by a dirty laser unit
                           - Coloured lines always
                              appear in the same place. (The lines are never black.)
 
                           
                           - Coloured lines appear in parallel
                              with the direction of paper feeding.
 
                           
                           - Coloured lines appear not
                              only on output from a copier but also on prints from a computer.
                              (The same lines appear on both copies and print jobs.)
 
                        
If conditions similar to the above occur, clean the laser
                        unit as explained below.
                     
                        Open the front cover.
                        
                        Take out the cleaning tool for the laser unit.
The cleaning tool is attached to the front cover of the machine.
                           - Push the left-hand side of the cleaning tool to
                              detach it from the hook.
 
                           - Put it over the hook to place in on the back side.
 
                           - Turn the cleaning tool around the boss to detach it from
                              the right-hand hook.
 
                        
                        
                        
                        Make sure that the cleaner at the tip of the cleaning
                           tool is not dirty.
If the cleaner is dirty, remove the cleaner from the
                        cleaning tool and replace it with a clean one. For more information
                        on replacing the cleaner, see "REPLACING THE CLEANER (page 1-79)".
                        Point the cleaner down and slowly insert the tool into
                           the hole to be cleaned in the laser unit.
Be sure to point the cleaner down. Labels similar to
                        (A) are attached to areas that require cleaning.
                        Insert the cleaning tool all the way into the hole and
                           then pull it back out.
Pull the cleaning tool out until you feel the tip of
                        the tool leave the cleaning surface of the laser unit.
                        Repeat steps 4 to 5 two or three times and then remove
                           the cleaning tool.
                        
                        Repeat steps 4 to 6 to clean all holes 
                           (4 holes) in the laser unit.
There are a total of four holes to be cleaned in the
                        laser unit. Clean all holes.
                        Replace the cleaning tool.
                        
                           - Engage the cleaning tool onto the boss and turn
                              it around it, and then put the edge (non-cleaner side) on the right-hand hook.
 
                           - Put the left-hand side of the cleaning tool over the hook
                              to place it on the near side.
 
                           - Turn the cleaning tool onto hook.
 
                        
                        
                        
                        Close the front cover.
                        
                      
                     
                        REPLACING THE CLEANER
                     
                        Open the front cover and take out a replacement cleaner.
Replacement cleaners are stored in the front cover.
Grasp the end of the cleaner and pull it out of the cover.
                        Remove the dirty cleaner from the tip of the cleaning
                           tool.
While firmly grasping the tool where the cleaner is attached, use
                        your other hand to press down on the hook that secures the cleaner,
                        and remove the cleaner.
                        
                        
                           Caution
Put the removed cleaner back on the inner cover.
                           After replacing the cleaner, be sure to close the inner cover.
 
                        Attach the new cleaner to the cleaning tool.
Align the cleaner hook with the attachment hole in the cleaning
                        tool. Hold the cleaner firmly and push the cleaning tool in.
                        
                      
                   
                  
                     If paper misfeed frequently occur in the
                        bypass tray, clean the bypass feed roller. Wipe the surface of the
                        feed roller with a clean soft cloth moistened with water or a neutral
                        detergent.
                     Bypass tray (on the machine)
                     
                        Remove paper.
                        
                        Remove the maintenance cover.
                        
                        Clean the bypass feed roller.
Install the maintenance cover after the cleaning is completed.
                        Load the paper.
                        
                      
                     Bypass tray (large capacity trays)
                     
                        Press the operation button and remove paper.
The paper table goes down. The operation button blinks while
                        the paper table goes down. The button lights up when the paper table
                        has gone down. Do not remove the paper until the button ceases blinking.
                        Remove the maintenance cover.
                        
                        Clean the bypass feed roller.
Install the maintenance cover after the cleaning is completed.
                        Load the paper and press the operation button.
The paper table goes up when the operation button is pressed.
                      
                   
                  
                     When using the automatic document feeder,
                        if the placed original is smudged or jammed, wipe the surface of
                        the paper  feed roller in the direction of the arrow with a clean,
                        soft cloth moistened with water or a neutral detergent.