Sheet conveying apparatus

A sheet conveying apparatus which includes a skew correction mean for correcting skew-feed of a sheet and in which the sheet is conveyed while correcting the skew-feed of the sheet by said skew correction means, comprising:

• a plurality of sheet convey means disposed upstream of said skew correction means in a sheet conveying direction to convey the sheet to said skew correction means and being shiftable in a direction substantially perpendicular to the sheet conveying direction;
• a plurality of shift means for shifting said sheet convey means pinching the sheet, respectively, in the direction substantially perpendicular to the sheet conveying direction to thereby shift the sheet before skew-corrected by said skew correction means in a skew correction direction;
• a sheet skew amount detection means disposed at said sheet convey means in the sheet conveying direction for detecting a skew amount of the sheet;
• and
• a control means for controlling driving of said plurality of shift means to shift said plurality of sheet convey means by amounts corresponding to the skew amount on the basis of sheet skew amount information detected by said sheet skew amount detection means.

A sheet conveying apparatus comprising:

• a sheet convey means shiftable in a direction substantially perpendicular to a sheet conveying direction for pinching and conveying a sheet member;
• a skew amount detection means for detecting skew-feed of the sheet member being conveyed;
• two sets of roller pairs independently disposed on a line perpendicular to the sheet conveying direction;
• two drive sources for driving said roller pairs independently;
• a control means for controlling driving speeds of said drive sources in accordance with a detection result from said skew amount detection means to thereby correct skew-feed of the sheet member conveyed by said sheet convey means;
• and
• a shift means for shifting said sheet convey means in the direction substantially perpendicular to the sheet conveying direction;
• and
• wherein said control means controls a shift amount of said sheet convey means shifted by said shift means, on the basis of the control of the driving speeds of said drive sources.

A sheet conveying apparatus comprising:

• a plurality of sheet convey means shiftable in a direction substantially perpendicular to a sheet conveying direction for pinching and conveying a sheet member;
• a skew amount detection means for detecting skew-feed of the sheet member being conveyed;
• two sets of roller pairs independently disposed on a line perpendicular to the sheet conveying direction;
• two drive sources for driving said rollers pairs independently;
• a control means for controlling driving speeds of said drive sources in accordance with a detection result from said skew amount detection means to thereby correct skew-feed of the sheet member conveyed by said sheet convey means;
• a plurality of shift means for shifting the respective sheet convey means in the direction substantially perpendicular to the sheet conveying direction;
• and
• a control means for controlling shift amounts of said sheet convey means shifted by said shift means, on the basis of control amount of the driving speeds of said drive sources.

A sheet conveying apparatus including a skew correction means for correcting skew-feed of a sheet being conveyed, and a convey means for conveying the sheet to said skew correction means while pinching the sheet,

• wherein said convey means is shiftable in a direction transverse to a sheet conveying direction;
• and
• further comprising a shift means for shifting said convey means in the direction transverse to the sheet conveying direction;
• and
• a control means for controlling said shift means to shift said convey means pinching the sheet in a skew correction direction in synchronous with the sheet shifted in the skew correction direction by said skew correction means.