IMAGE READING DEVICE AND IMAGE FORMING SYSTEM

To prevent deformation of a guide that guides a sheet to a reading position.SOLUTION: Image reading devices 202, 204 respectively comprise: transparent members 302, 402 having first surfaces 302a, 402a that are each arranged on a conveyance side on which a sheet is conveyed, second surfaces 302b, 402b that are each arranged on an upstream side in a conveyance direction CD, and third surfaces 302c, 402c that each connect a first end G1 on the upstream side of the first surface and a second end G2 on the conveyance side of the second surface to each other; guides 300, 400 that are each arranged on the upstream side of a reading position RP to read an image of the sheet and guide the sheet to the reading position; and support members 306, 406 to each of which the guide is attached. Downstream ends 303, 403 of the guides are each located on the conveyance side of the first surface, and located between the first end and the second end of the transparent member in the conveyance direction, and third ends 307, 407 on the conveyance side of the support members are each located between the first end and the second end in a direction perpendicular to the first surface.SELECTED DRAWING: Figure 4 【課題】シートを読取位置へ案内するガイドの変形を抑制する。【解決手段】画像読取装置２０２、２０４は、シートが搬送される搬送側に配置される第一の面３０２ａ、４０２ａと、搬送方向ＣＤにおいて上流側に配置される第二の面３０２ｂ、４０２ｂと、第一の面の上流側にある第一の端部Ｇ１と第二の面の搬送側にある第二の端部Ｇ２とをつなぐ第三の面３０２ｃ、４０２ｃとを有する透明部材３０２、４０２と、シートの画像を読み取る読取位置ＲＰよりも上流側に配置され、シートを読取位置へ案内するガイド３００、４００と、ガイドが取り付けられる支持部材３０６、４０６と、を備え、ガイドの下流端部３０３、４０３は第一の面よりも搬送側に位置し、搬送方向において透明部材の第一の端部と第二の端部との間に位置し、支持部材の搬送側にある第三の端部３０７、４０７は、第一の面に垂直な方向において第一の端部と第二の端部との間に位置する。【選択図】図４