Image forming apparatus

摘要

A sheet storing portion includes a movable restricting portion disposed in a sheet storage body to be movable along a sheet feeding direction and restricting an upstream end in the sheet feeding direction of the sheet. A detecting portion moves in conjunction with the movable restricting portion and includes a detecting member that turns turning on and off the plurality of switches. A control portion is configured to judge the size of the sheet by patterns of ON and OFF of the plurality of switches inputted from the detecting portion and to judge that the size of the sheet stored in the sheet storing portion is the sheet specified through a specifying portion when the size of the sheet is specified through the specifying portion even if the pattern is a predetermined pattern different from a pattern of the size of the sheet specified through the specifying portion.

主权项

1. An image forming apparatus comprising:
an apparatus body; a sheet storing portion including:
a sheet storage body configured to be attachable to the apparatus body and configured to store a different sizes of sheets; anda movable restricting portion disposed in the sheet storage body to be movable along a sheet feeding direction and restricting an upstream end in the sheet feeding direction of the sheet; a sheet feeding portion configured to feed the sheet stored in the sheet storing portion; a specifying portion configured to specify the size of the sheet stored in the sheet storing portion; a detecting portion including:
a plurality of switches provided in the apparatus body anda detecting member provided in the sheet storing portion, moving in conjunction with the movable restricting portion and turning ON and OFF the plurality of switches in the state in which the sheet storing portion is attached to the apparatus body; and a control portion judging the size of the sheet by patterns of ON and OFF of the plurality of switches inputted from the detecting portion and judging that the size of the sheet stored in the sheet storing portion is the size of the sheet specified through the specifying portion in a case where the size of the sheet is specified by the specifying portion even if the pattern is a predetermined pattern different from a pattern of the size of the sheet specified by the specifying portion, wherein the control portion starts a sheet feeding operation of the sheet feeding portion in a case where the size of the sheet stored in the sheet storing portion is the size of the sheet specified through the specifying portion.