Printer squeaks badly, lubrication possible? - Canon PIXMA MP160 All-In-One InkJet Printer

You do not lubricate rollers directly. You lubricate the gears driving the rollers. I generally use white lithium grease.

Bad assembly. Must be Chinese! Look where it squeakes and try to lubricate it with 3 in 1
3 IN ONE Multi Purpose Oil Household Oil Lubricate Bikes Guns More

Usually you don't lubricate. It is probably the fuser assembly wearing. How is the print quality? Have you ran a test page, ran a supply status page? Checked the error log?

usually when a treadmill begins to make a squeaking sound it means that the belt needs to be lubricated. Try Treadmill Belt Lubricant available at Canadian Tire for $10.99 and is good for Reebok treadmills.

Before digging too deep, try removing the toner cartridge and powering on. The printer will make a short run cycle and you can listen for the squeak. Many times it's just the toner or drum and you don't need expensive repairs, just a cartridge.

Clean the rollers inside. If possible apply some lubricant at the gears.

Yes, lubricate the chrome shaft with light weight oil.

Lubricate the chrome rail with 3 in 1 oil that the print head moves across on.

the squeak is coming from the drum unit. If you take out the drum and rotate it by hand it will most likely give you the same noise. you may be able to stop it by pouring some toner on it, but in reality it is more annoying than a problem.
there is a blade that scrapes off excess toner from the drum, it is slightly dry and causes the squeaking, technicians usually use a special powder that looks like baby powder to "lubricate" the blade, and stop the noise.

Remove drum unit and lubricate right side of the DRUM cartridge! The right side of the OPC!!!