Patent ID: 7065305
Filing Date: 2006-06-20
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a latent image formation portion which forms an electrostatic latent image on a photoreceptor based on an inputted image signal; a development portion which causes a toner to adhere on the electrostatic latent image formed on the photoreceptor, to develop a toner image; a transfer portion which transfers the toner image onto a paper sheet; a carriage portion which carries the paper sheet; a residual quantity detecting portion which detects a toner residual quantity of the development portion; a first detecting portion which detects the toner residual quantity by using the residual quantity detecting portion during printing; a second detecting portion which stops supply of power to the transfer portion when shortage of the toner residual quantity is detected by the first detecting portion, and again detects the toner residual quantity by using the residual quantity detecting portion; and a supply portion which supplies the toner to the development portion when the shortage of the toner residual quantity is detected by the second detecting portion.