Inspect and clean the re-ref sensors

WHAT YOU NEED 

Tools:Allen Key SetSecurity Torx Key SetSmall Flat Head ScrewdriverSmall Phillips Head ScrewdriverLoctite Low Strength Threadlocker

Spare Parts:Banner Laser Emitter - EL1023 (if needed)Banner Receiver - EL1024 (if needed)Metal Pinhole Mask - EL1022 (if needed)

Safety Equipment:Standard Personal Protective Equipment

Other Equipment:Damp cloth