Canon 1321B002AB User Manual - Page 66

Cleaning the Sensor Glass and the Rollers, Maintenance

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Chapter 4 Maintenance Cleaning the Sensor Glass and the Rollers If scanned images have extraneous marks, or if the scanned documents are dirty, the sensor glass or rollers inside the scanner may be dirty. Clean them periodically. 1 Carefully open the upper unit until it stops. IMPORTANT When opening the upper unit, do not grasp the roller unit in the center. Doing so may distort the rollers and lead to feeding errors. Note The location of the sensor glass and various rollers are shown below. Roller Unit Sensor Glasses Rollers Retard Roller 2 Use compressed air to keep the interior of the scanner free of dust and paper particles. 4-2

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Chapter 4
Maintenance
4-2
Cleaning the Sensor Glass and the Rollers
If scanned images have extraneous marks, or if the scanned documents are dirty, the sensor glass
or rollers inside the scanner may be dirty. Clean them periodically.
1
Carefully open the upper unit until it stops.
IMPORTANT
When opening the upper unit, do not grasp the roller unit in the center. Doing so may distort
the rollers and lead to feeding errors.
Note
The location of the sensor glass and various rollers are shown below.
2
Use compressed air to keep the interior of the scanner free of dust and paper particles.
Retard Roller
Rollers
Sensor Glasses
Roller Unit