Sheet feeding device and image processing apparatus

An image processing apparatus comprising:

• a sheet feeding device;
• and
• a control section, wherein,
• the sheet feeding device includes:
• a first conveyance roller pair that feeds a sheet;
• a second conveyance roller pair that feeds the sheet, the second conveyance roller pair being provided downstream from the first conveyance roller pair in a feed direction in which the sheet is fed;
• and
• a third conveyance roller pair that feeds the sheet, the third conveyance roller pair being provided downstream from the second conveyance roller pair in the feed direction,
• when an edge of the sheet that is located on the downstream side of the feed direction is skewed with respect to a direction perpendicular to the feed direction, the second conveyance roller pair slides in the perpendicular direction with the sheet slacking between the first conveyance roller pair and the second conveyance roller pair,
• the second conveyance roller pair slides in the perpendicular direction by means of force applied by the sheet,
• the sheet feeding device further includes a restricting section that restricts sliding of the second conveyance roller pair,
• when the downstream edge contacts the third conveyance roller pair, the restriction by the restricting section on the second conveyance roller pair is cancelled,
• the sheet feeding device further includes a first detecting section provided between the second conveyance roller pair and the third conveyance roller pair, and
• the control section cancels the restriction by the restricting section on the second conveyance roller pair once the first detecting section detects the downstream edge.

An image processing apparatus comprising:

• a sheet feeding device;
• and
• a control section, wherein,
• the sheet feeding device includes:
• a first conveyance roller pair that feeds a sheet;
• a second conveyance roller pair that feeds the sheet, the second conveyance roller pair being provided downstream from the first conveyance roller pair in a feed direction in which the sheet is fed;
• and
• a third conveyance roller pair that feeds the sheet, the third conveyance roller pair being provided downstream from the second conveyance roller pair in the feed direction,
• when an edge of the sheet that is located on the downstream side of the feed direction is skewed with respect to a direction perpendicular to the feed direction, the second conveyance roller pair slides in the perpendicular direction with the sheet slacking between the first conveyance roller pair and the second conveyance roller pair,
• the sheet feeding device further includes:
• a driving section that slides the second conveyance roller pair;
• and
• a second detecting section that detects a skewing direction of the downstream edge, and
• the control section causes the driving section to slide the second conveyance roller pair on the basis of the direction detected by the second detecting section.