Chapter 5 Maintenance

Main unit inner upper side (Upper Unit)

Sensors

Opening and closing the upper unit

When cleaning the inside of the device, make sure to open and close the upper unit using the following procedure.

CAUTION

When opening and closing the upper unit, make sure not to catch your hand.

■Opening the Upper Unit

Pull and hold the open/close lever, and open the unit smoothly until the upper unit stops.

Open/close lever

■Closing the Upper Unit

Smoothly close the upper unit (1). Further, press both ends of the upper unit to verify that it is securely closed. (2)

(1)

(2)

Hint

If the upper unit is open, an error is displayed.

Cleaning the Scanning Glass, Roller, and Pad

If there are streaks in the scanned images, or the scanned documents are dirty, it is possible that the scanning glass or rollers are dirty. Periodically clean the parts.

IMPORTANT

Scratches on the scanning glass may cause spots or streaks on scanned images, as well as feeding errors. If you find a scratch on the scanning glass, contact your local authorized Canon dealer or service representative to have the glass replaced.

1.Turn the power switch off, and disconnect the power plug from the power outlet.

2.Close the document eject tray extension if it is open.

3.Open the upper unit smoothly. (See “Opening the Upper Unit” on p. 5-3)

5-3