I have (what I thought was Silicon) spray that was given to me by the garage door installer to lube the rollers for my garage doors. I spray some on a paper towel and wipe the X, Y and Z bars with that. It is called Zep 70.
Zep 70 is a soy-based penetrating lubricant that utilizes a renewable soy solvent. It provides excellent long-lasting lubrication, and superior water displacement properties. Zep 70 will penetrate quickly and clean dirt and grease. It will also protect against rust and corrosion. Zep 70 is packaged in a 24 oz. can with a net weight of 18 ounces.
Utilizing a soy-based solvent, a renewable source, helps to conserve nonrenewable resources such as petroleum.
Non-evaporative solvent extends life of the lubricant.
Quickly penetrates parts frozen from rust or corrosion.
Displaces moisture and condensation which can cause corrosion.
Treated surfaces are protected from rust.
Helps clean dirt and grease from metal surfaces.
Reading the can contents, the Lubricant part seems to be TSRN-80100428-5003
The guides seem to slide on the bars with this stuff. Can't find a google hit on it.
I also made a polycarbonate enclosure around my printer to keep dust from settling on everything.