Canon iPF720 Service Manual page 141

Ipf700 series
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8) Using a damp cloth wringed well, wipe dirt off the inside of the top cover. Wipe ink contamination off the roller [1], overall surface of the platen [2], pinch roller
unit [3], borderless print ink receiving groove [4], delivery guide [5], and guide rail [6].
- Do not dry the interiors of the top cover with a dry cloth. Electrostatic charges could make the internal components susceptible to dirt, resulting in degraded print
quality.
- Do not use flammable solvents, such as thinner and benzine, on the printer. Solvents coming into contact with any electrical parts inside the printer could result
in fires or electrical shock hazards.
- Do not touch linear scale [1] and carriage shaft [2].
9) Remove the roll feed unit and fold plain paper two to three times and then insert through the printer rear into the underside of the pinch roller unit to wipe off
dirt on the pinch roller unit.
[3]
[5]
[2]
[4]
F-5-3
[1]
[2]
F-5-4
[6]
[1]
Chapter 5
5-3

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