How to Lubricate Printhead?

[TechnicGeek]

Hello. When MFC 240C is printing it makes squeaking noise. I want to see what moving part needs to be lubricated.
Did anyone lubricate their inkjet printer and knows where problem lies?

 

[Printertales]

First, you check where the lubricant show then, first change the inkjet then clean the printer with cotton cloth.

 

[TechnicGeek]

@Printertales Completed. Used PTFE bicycle drive chain oil for dry conditions.