Sheet conveying apparatus, printing apparatus, and processing apparatus

A sheet conveying apparatus that conveys sheets, comprising:

• a sheet stacking unit configured to stack the sheets thereon;
• a sheet conveying unit configured to convey the sheets stacked on the sheet stacking unit;
• a separation unit configured to separate a sheet of the uppermost portion by a separation slope that abuts a tip portion of the sheet conveyed by the sheet conveying unit;
• a guide unit configured to guide the sheet separated by the separation unit;
• and
• a rotating unit configured to rotate the separation slope around a rotation center provided in a vicinity of a downstream end in a sheet moving direction of the separation slope so that an angle between the sheet stacking unit and the separation slope is changed,
• wherein switching of an angle of the separation unit is set based on torque information of a driving source of the sheet conveying unit.

A sheet conveying apparatus that conveys sheets, comprising:

• a sheet stacking unit configured to stack the sheets thereon;
• a sheet conveying unit configured to convey the sheets stacked on the sheet stacking unit;
• a separation unit configured to separate a sheet of the uppermost portion by a separation slope that abuts a tip portion of the sheet conveyed by the sheet conveying unit;
• a guide unit configured to guide the sheet separated by the separation unit;
• and
• a rotating unit configured to rotate the separation slope around a rotation center provided in a vicinity of a downstream end in a sheet moving direction of the separation slope so that an angle between the sheet stacking unit and the separation slope is changed, wherein switching of an angle of the separation unit is set based on information in which the sheet is not conveyed to a subsequent process in conveying by the sheet conveying unit.

A printing apparatus that performs printing on sheets, comprising:

• a sheet stacking unit configured to stack the sheets thereon;
• a sheet conveying unit configured to convey the sheets stacked on the sheet stacking unit;
• a separation unit configured to separate a sheet of the uppermost portion by a separation slope that abuts a tip portion of the sheet conveyed by the sheet conveying unit;
• a guide unit configured to guide the sheet separated by the separation unit;
• a printing unit configured to print on the sheet guided by the guide unit;
• and
• a rotating unit configured to rotate the separation slope around a rotation center provided in a vicinity of an upstream end in a sheet moving direction of the guide unit slope so that an angle between the sheet stacking unit and the separation slope is changed,
• wherein the sheets are separated at a first angle in a case where the sheets have predetermined rigidity, and the sheets are separated at a second angle in a case where the sheets have rigidity lower than the predetermined rigidity.

A processing apparatus that performs processing on sheets, comprising:

• a sheet stacking unit configured to stack the sheets thereon;
• a sheet conveying unit configured to convey the sheets stacked on the sheet stacking unit;
• a separation unit configured to separate a sheet of the uppermost portion by a separation slope that abuts a tip portion of the sheet conveyed by the sheet conveying unit;
• a guide unit configured to guide the sheet separated by the separation unit;
• and
• a rotating unit configured to rotate the separation slope around a rotation center provided in a vicinity of a downstream end in a sheet moving direction of the separation slope so that an angle between the sheet stacking unit and the separation slope is changed,
• wherein the sheets are separated at a first angle in case the sheets are a first type, and the sheets are separated at a second angle in case the sheets are a second type.

A sheet separating apparatus comprising:

• a stacking unit on which the sheets are stacked;
• a conveying unit configured to convey at least an uppermost sheet stacked on the stacking unit;
• a separation unit having a slope configured to separate the uppermost sheet to which a leading edge of the sheet conveyed by the conveying unit abuts;
• and
• a changing unit configured to change an angle of the slope with respect to a direction where the conveying unit conveys a sheet,
• wherein the changing unit changes the angle of the slope according to a type of the sheet to be conveyed before the conveying unit conveys the sheet stacked on the stacking unit.