IMAGE FORMING APPARATUS

摘要

An image forming apparatus which can prevent deformation of a sheet due to heat generated at a fixing section as much as possible, and can reduce the amount of waste paper even when the sheet is partially deformed, in which: an upper fixing section and a lower fixing section form a fixing nip for conveying a continuous sheet in a tightly sandwiching manner in a state where the upper fixing section and the lower fixing section are in pressure contact with each other; the upper fixing section and the lower fixing section are separated from each other when image formation is not performed; and a detection section detects deformation of the continuous sheet at a closest part between the upper fixing section and the lower fixing section.

主权项

1. An image forming apparatus comprising:
an upper fixing section disposed on a fixing side of a continuous sheet on which a toner image is formed; a lower fixing section configured to form a fixing nip for conveying the continuous sheet in a tightly sandwiching manner in a state where the lower fixing section makes pressure contact with the upper fixing section; a pressure contact separation section configured to bring the upper fixing section and the lower fixing section into pressure contact with each other or separate the upper fixing section and the lower fixing section from each other; a control section configured to control the pressure contact separation section to separate the upper fixing section and the lower fixing section from each other during a non-image formation period; and a detection section configured to detect deformation of the continuous sheet at a closest part between the upper fixing section and the lower fixing section during the non-image formation period.