Canon imagePRESS 1135 Series Service Manual page 511

4
Parts Replacement and Cleaning > Periodic Replacing Parts, Durable Parts, Cleaning Parts > Cleaning Fixing Feed Unit (2 hundred thousand sheet)
12) Clean the sensor flag with lint-free paper moistened with alcohol.
4 Parts Replacement and Cleaning > Periodic Replacing Parts, Durable Parts, Cleaning Parts > Cleaning Fixing Feed Unit (2 hundred thousand sheet)
13) Clean the 5 places of guide surface [A] of the fixing feed assembly with lint-free paper
Sensor flag
F-4-529
moistened with alcohol.
[A]
4-247
F-4-530
4-247