Patent ID: 9152117
Filing Date: 2015-10-06
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: a non volatile memory device; a toner consumption amount identifying unit configured to identify from print data a toner consumption amount of toner consumed in a printing process based on the print data; a toner residual amount identifying unit configured to identify a toner residual amount in a toner container from the toner consumption amount identified from the print data; a toner residual amount data managing unit configured (a) to store a value of the toner residual amount at a timing when an ordering process of the toner container succeeds as order-timing toner residual amount data into the non volatile memory device, and (b) to delete the order-timing toner residual amount data in the non volatile memory device if the value of the toner residual amount identified by the toner residual amount identifying unit is larger than a value of the order-timing toner residual amount data; the value of the toner residual amount being larger than a value of the order-timing toner residual amount when the toner container is replaced with a new container; and an order processing unit configured to perform an ordering process of the toner container if the order-timing toner residual amount data is not stored in the non volatile memory device and the value of the toner residual amount identified by the toner residual amount identifying unit is either equal to or less than a predetermined value.