Image forming apparatus with controlled warmup and related method

摘要

A warmup of an image forming apparatus is controlled with a first sensor for detecting if a cover of the apparatus is being opened or not and a second sensor for detecting if a toner cartridge of the apparatus is moved or not. The control involves the steps of: when the first sensor produces a signal informing the cover is being opened, determining if the toner cartridge is moved in response to the signal; and allowing the image forming apparatus to go through a warmup only when the second sensor produces a signal informing the movement of the toner cartridge./!