Sheet feeding apparatus

A sheet feeding apparatus, comprising:

• a. a stacking means for stacking sheets;
• b. a first regulating member for regulating positions of lateral edges of the sheets stacked on said stacking means;
• c. a supply means for supplying a sheet from the sheets stacked on said stacking means;
• d. a second regulating member for regulating a position of the lateral edge of the sheet supplied by said supply means;
• e. a first rotary member disposed at a downstream side of said supply means in a sheet feeding direction and adapted to feed the sheet fed by said supply means while urging said lateral edge of the sheet against said second regulating member;
• f. a second rotary member disposed at a downstream side of said first rotary member in the sheet feeding direction and adapted to feed the sheet fed by said first rotary member while urging said lateral edge of the sheet against said second regulating member;
• and
• g. a guide means for guiding the sheet in such a manner that the sheet is curved between said supply means and said first rotary member;
• wherein an urging force of said first rotary member, by which the sheet is urged against said second regulating member, is set to be smaller than an urging force of said second rotary member, by which the sheet is urged against said second regulating member, and
• wherein a regulating surface of said second regulating member is displaced outwardly from that of said first regulating member with respect to the lateral edge of the sheet to be regulated.

A sheet feeding apparatus, comprising:

• a. a feeding means for feeding a sheet;
• b. a regulating member for regulating a position of a lateral edge of the sheet fed by said feeding means;
• c. a first rotary member disposed at a downstream side of said feeding means in a sheet feeding direction and adapted to feed the sheet fed by said feeding means while urging said lateral edge of the sheet against said regulating member;
• d. a second rotary member disposed at a downstream side of said first rotary member in the sheet feeding direction and adapted to feed the sheet fed by said first rotary member while urging said lateral edge of the sheet against said regulating member;
• and
• e. a guide for guiding the sheet in such a manner that the sheet is curved between said feeding means and said first rotary member;
• wherein an urging force of said first rotary member, by which the sheet is urged against said regulating member, is set to be smaller than an urging force of said second rotary member, by which the sheet is urged against said regulating member, and
• wherein a sheet feeding direction of said feeding means is opposite to a sheet feeding direction of said first rotary member.

A sheet feeding apparatus, comprising:

• a feeding means for feeding a sheet;
• a regulating member for regulating a position of a lateral edge of the sheet fed by said feeding means;
• a first rotary member disposed at a downstream side of said feeding means in a sheet feeding direction and adapted to feed the sheet fed by said feeding means while urging the sheet against said regulating member;
• and
• a second rotary member disposed at a downstream side of said first rotary member in the sheet feeding direction and adapted to feed the sheet fed by said first rotary member while urging the sheet against said regulating member;
• wherein an urging force of said first rotary member by which the sheet is urged against said regulating member is set to be smaller than an urging force of said second rotary member by which the sheet is urged against said regulating member.

An image forming system, comprising:

• a feeding means for feeding a sheet;
• a regulating member for regulating a position of a lateral edge of the sheet fed by said feeding means;
• a first rotary member disposed at a downstream side of said feeding means in a sheet feeding direction and adapted to feed the sheet fed by said feeding means while urging the sheet against said regulating member;
• a second rotary member disposed at a downstream side of said first rotary member in the sheet feeding direction and adapted to feed the sheet fed by said first rotary member while urging the sheet against said regulating member;
• a guide means for guiding the sheet in such a manner that the sheet is curved between said feeding means and said first rotary member;
• and
• an image forming means for forming an image on the sheet fed by said second rotary member;
• wherein an urging force of said first rotary member by which the sheet is urged against said regulating member is set to be smaller than an urging force of said second rotary member by which the sheet is urged against said regulating member.

An image forming system, comprising:

• a. a stacking means for stacking sheets;
• b. a first regulating member for regulating positions of lateral edges of the sheets stacked on said stacking means;
• c. a supply means for supplying a sheet from the sheets stacked on said stacking means;
• d. a second regulating member for regulating a position of the lateral edge of the sheet supplied by said supply means;
• e. a first rotary member disposed at a downstream side of said supply means in a sheet feeding direction and adapted to feed the sheet fed by said supply means while urging said lateral edge of the sheet against said second regulating member;
• f. a second rotary member disposed at a downstream side of said first rotary member in the sheet feeding direction and adapted to feed the sheet fed by said first rotary member while urging said lateral edge of the sheet against said second regulating member;
• and
• g. a guide means for guiding the sheet in such a manner that the sheet is curved between said supply means and said first rotary member;
• and
• h. an image forming means for forming an image on the sheet fed by said supply means;
• wherein an urging force of said first rotary member, by which the sheet is urged against said second regulating member, is set to be smaller than an urging force of said second rotary member, by which the sheet is urged against said second regulating member, and
• wherein a regulating surface of said second regulating member is displaced outwardly from that of said first regulating member with respect to the lateral edge of the sheet to be regulated.

An image forming system, comprising:

• a. a feeding means for feeding a sheet;
• b. a regulating member for regulating a position of a lateral edge of the sheet fed by said feeding means;
• c. a first rotary member disposed at a downstream side of said feeding means in a sheet feeding direction and adapted to feed the sheet fed by said feeding means while urging said lateral edge of the sheet against said regulating member;
• d. a second rotary member disposed at a downstream side of said first rotary member in the sheet feeding direction and adapted to feed the sheet fed by said first rotary while urging said lateral edge of the sheet against said regulating member;
• and
• e. a guide for guiding the sheet in such a manner that the sheet is curved between said feeding means and said first rotary member;
• and
• f. an image forming means for forming an image on the sheet fed by said first rotary member;
• wherein an urging force of said first rotary member, by which the sheet is urged against said regulating member, is set to be smaller than an urging force of said second rotary member, by which the sheet is urged against said regulating member, and
• wherein a sheet feeding direction of said feeding means is opposite to a sheet feeding direction of said first rotary member.

An image forming system, comprising:

• a feeding means for feeding a sheet;
• a regulating member for regulating a position of a lateral edge of the sheet fed by said feeding means;
• a first rotary member disposed at a downstream side of said feeding means in a sheet feeding direction and adapted to feed the sheet fed by said feeding means while urging the sheet against said regulating member;
• a second rotary member disposed at a downstream side of said first rotary member in the sheet feeding direction and adapted to feed the sheet fed by said first rotary member while urging the sheet against said regulating member;
• and
• an image forming means for forming an image on the sheet fed by said second rotary member;
• wherein an urging force of said rotary member by which the sheet is urged against said regulating member is set to be smaller than an urging force of said second rotary member by which the sheet is urged against said regulating member.

A sheet feeding apparatus, comprising:

• stack means for stacking sheets thereon;
• sheet supply means for supplying a sheet from the sheets stacked on said stack means;
• a separation pawl abutting one side area of a leading edge of the sheets stacked on said stack means to separate the sheets one by one by cooperating with said sheet supply means;
• a guide for regulating a position of a lateral edge of the sheet supplied by said sheet supply means, said lateral edge and a side portion of the supplied sheet being located at the same side;
• first feed means for feeding the sheet by contacting with the sheet at he side portion located at the same side as the lateral edge to urge the sheet toward said guide by a first predetermined force;
• and
• second feed means for feeding the sheet by contacting with the sheet at the side portion located at same the side as the lateral edge to urge the sheet toward said guide by a second predetermined force larger than the first predetermined force.