-------------- are classified as the lost time and materials after the makeready is complete and production sheets are being counted

Maintenance done before the parts getting worn-out is 

Maintenance activities performed between two overhauling is called as

The system that does not use any belt, chain and gear in its drive

----------- is one of the positive drive type belts and has no slippage.

-------------- is one of the most accurate, strongest and quietest gear used in printing m/c today.