Paper feed apparatus
First Claim
1. A paper feed apparatus comprising:
- a paper feed tray for mounting a plurality of sheets in a stacked state;
primary paper feed means for sequentially transferring only the uppermost sheet out of the sheets on the paper feed tray;
a pair of secondary paper feed rollers arranged downstream of the primary paper feed means in a sheet transfer direction, and a pair of guide members providing a transfer path between the pair of guide members near the pair of secondary paper feed rollers;
secondary paper feed means for introducing tip ends of the sheets transferred by the primary paper feed means by using the pair of guide members to a portion between the paired secondary paper feed rollers, and for transferring the sheets introduced to the portion between the pair of secondary paper feed rollers to a transport downstream side according to rotation of the pair of secondary paper feed rollers; and
guide distance adjustment means for making a distance between the pair of guide members variable, wherein the guide distance adjustment means comprises an operation member, and the guide distance adjustment means makes the distance between the pair of guide members variable by operating the operation member.
1 Assignment
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Accused Products
Abstract
A paper feed apparatus comprises primary paper feed device 3 sequentially transferring only an uppermost print sheet P on a paper feed tray, and secondary paper feed device 4 guiding a tip end of the print sheet P transferred by the primary paper feed device 3 by a pair of guide members 12 and 13, introducing the print sheet P to a portion between a pair of secondary paper feed rollers 10 and transferring the print sheet P introduced to the portion between the pair of secondary paper feed rollers 10 to a transport downstream side according to rotation of the pair of secondary paper feed rollers 10. The paper feed apparatus is provided with a guide distance adjustment device 14 for making a distance between the pair of guide members 12 and 13 variable. The guide distance adjustment device 14 rotates eccentric cams 22 by rotation of an operation member 20. A position of the upper guide member 12 is vertically changed to follow up lower surface positions of the eccentric cams 22, thereby making the distance between the pair of guide members 12 and 13 variable.
23 Citations
3 Claims
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1. A paper feed apparatus comprising:
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a paper feed tray for mounting a plurality of sheets in a stacked state;
primary paper feed means for sequentially transferring only the uppermost sheet out of the sheets on the paper feed tray;
a pair of secondary paper feed rollers arranged downstream of the primary paper feed means in a sheet transfer direction, and a pair of guide members providing a transfer path between the pair of guide members near the pair of secondary paper feed rollers;
secondary paper feed means for introducing tip ends of the sheets transferred by the primary paper feed means by using the pair of guide members to a portion between the paired secondary paper feed rollers, and for transferring the sheets introduced to the portion between the pair of secondary paper feed rollers to a transport downstream side according to rotation of the pair of secondary paper feed rollers; and
guide distance adjustment means for making a distance between the pair of guide members variable, wherein the guide distance adjustment means comprises an operation member, and the guide distance adjustment means makes the distance between the pair of guide members variable by operating the operation member.
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2. A paper feed apparatus comprising:
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a paper feed tray for mounting a plurality of sheets in a stacked state;
primary paper feed means for sequentially transferring only the uppermost sheet out of the sheets on the paper feed tray;
a pair of secondary paper feed rollers arranged downstream of the primary paper feed means in a sheet transfer direction, and a pair of guide members providing a transfer path between the pair of guide members near the pair of secondary paper feed rollers;
secondary paper feed means for introducing tip ends of the sheets transferred by the primary paper feed means by using the pair of guide members to a portion between the paired secondary paper feed rollers, and for transferring the sheets introduced to the portion between the pair of secondary paper feed rollers to a transport downstream side according to rotation of the pair of secondary paper feed rollers; and
guide distance adjustment means for making a distance between the pair of guide members variable, wherein the guide distance adjustment means comprises a rotatably provided eccentric cam, and the guide distance adjustment means makes the distance between the pair of guide members variable according to a rotation position of the eccentric cam. - View Dependent Claims (3)
wherein the paper feed apparatus is constituted to detect a slide ratio of the sheets when transferring the sheets to the secondary paper feed means by the primary paper feed mans, to drive the guide distance adjustment means according to the detected slide ratio and to thereby make the distance between the pair of guide members variable.
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Specification