Image formation device

An image formation device, comprising:

• a sheet accommodation unit configured to accommodate any one of a plurality of types of sheets having different sheet lengths;
• an image formation unit configured to form an image of the sheet;
• a sheet feed mechanism configured to feed the sheet accommodated in the sheet accommodation unit toward the image formation unit;
• a feed path that guides the sheet fed by the sheet feed mechanism to the image formation unit;
• a sheet detection unit provided to the sheet feed path and configured to detect absence/presence of the sheet;
• a control unit configured to control the sheet feed mechanism such that, when a plurality of sheets are fed and images are formed on the plurality of sheet, respectively, the control unit controls the sheet feed mechanism to feed the plurality of sheet one by one with a predetermined sheet distance therebetween, the predetermined sheet distance corresponding to the size of the plurality of the sheets,
• wherein a length of the sheet feed path from the sheet accommodation unit to the sheet detection unit is greater than the sheet distance for a predetermined type sheet that has substantially the same sheet length as a maximum size sheet employable in the image formation unit,
• wherein the control unit comprises a measuring unit configured to measure a sheet length of the sheet fed by the sheet feed mechanism based on movement of the sheet and an output of the sheet detection unit, and
• wherein if the sheet length of a firstly fed sheet, which is fed in response to an image formation instruction measured by the measuring unit, is equal to the sheet length of the predetermined type of sheet, the control unit feeds a subsequent sheet with the sheet distance corresponding for the maximum size sheet between a trailing end of the previously fed sheet and a leading end of the subsequent sheet.