Paper controller for image forming apparatus
AssigneeAsia Optical Co., Inc.
InventorHsien-Chi Lin
Life of this patent
Estimating the term…
Abstract
A paper controller of an image forming apparatus includes a machine base having a main passage and a bypass therein. Three conveying rollers are pivoted on the machine to send papers going through the main passage and the bypass respectively. One conveying roller adjacent to the paper outlet has a driving portion and a driving-free portion, which is a flat face on the circumference, that the driving portion touches a driven roller to make it rotating and the driving-free portion will not touch the driven roller when the conveying roller is rotating that a gap is formed between the driving-free portion and the driven roller to prevent the paper from jamming at the paper outlet.
Claims10
A paper controller of an image forming apparatus, comprising:
- a machine base having a paper passage therein, and the paper passage including a main passage and a bypass, wherein opposite ends of the main passage are connected to a paper inlet and a paper outlet of the machine base respectively and opposite ends of the bypass are connected to the main passage and one of the end of the bypass is close to the paper outlet;
- a first conveying roller pivoted on the machine base and having a portion received in the main passage;
- a driven roller pivoted on the machine and having a portion received in the main passage, wherein the driven roller is closer to the paper outlet than the end of the bypass;
- and
- a second conveying roller pivoted on the machine base and having a portion received in the main passage and association with the driven roller, wherein the second conveying roller has a driving-free portion and a driving portion, and a distance between the driving portion and a center of the second conveying roller is greater than a distance between the driving-free portion and the center of the second conveying roller that when the second conveying roller rotates, the driving portion touches the driven roller and there is a gap between the driving-free portion and driven roller.
Dependencies are inferred from the claim text.