Canon imagePRESS 1135 Series Service Manual page 528

4
Parts Replacement and Cleaning > Periodic Replacing Parts, Durable Parts, Cleaning Parts > Cleaning Pre-Registration Unit (5 hundred thousand sheet)
7) Loosen the knob and with holding the feed guide by hand, pull out the guide lock plate and open the feed guide.
8) Hold the grip and while pushing the paper dust cleaning
brush to the upper left, remove it.
Paper dust cleaning brush
4 Parts Replacement and Cleaning > Periodic Replacing Parts, Durable Parts, Cleaning Parts > Cleaning Pre-Registration Unit (5 hundred thousand sheet)
9) Hold the grip and while pushing the paper dust
cleaning brush to the left, remove it.
Paper dust cleaning brush
F-4-579
Guide lock plate
Knob
Feed guide
10) Clean 4 brush part of the paper cleaning brush with vacuum.
F-4-580
4-264
F-4-578
F-4-581
4-264