linguistic:paraphrasing, quality:corruption, structural:expansion
Page yield

The page yield is the number of pages that can be printed from a toner cartridge or ink cartridge —before the cartridge needs to be refilled or replaced.The actual number of pages yielded by a specific cartridge depends on a number of factors.

For a fair comparison, many laser printer manufacturers use the ISO/IEC 19752 process to measure the toner cartridge yield.