Paper guide member and image forming apparatus
A paper guide member includes plural thread-shaped protrusions extending in a passing direction of paper to guide the paper after a toner image is transferred so that the paper passes with a distance secured from a static eliminator that eliminates static electricity in proximity to the paper in a width direction of the paper. The plural thread-shaped protrusions adjoin each other across a slit in the width direction of the paper. The plural thread-shaped protrusions include first thread-shaped protrusions each having a height at which the paper is supported and guided, and second thread-shaped protrusions each having a height smaller than the height of each of the first thread-shaped protrusions and present in regions on an outer side of both ends in the width direction of each passing region where paper having each width passes.
1. A paper guide member configured to guide paper having a plurality of paper widths after a toner image is transferred to the paper, wherein paper passing regions, through which the paper passes, have widths corresponding to the plurality of paper widths, the paper guide member comprising:
a plurality of thread-shaped protrusions extending in a passing direction of the paper to guide the paper to pass with a distance secured from a static eliminator that eliminates static electricity in proximity to the paper in a width direction of the paper, the plurality of thread-shaped protrusions adjoining each other across a slit in the width direction of the paper,
wherein the plurality of thread-shaped protrusions comprise:
first thread-shaped protrusions each having a height at which the paper is supported and guided and disposed in each of the paper passing regions; and
second thread-shaped protrusions each having a height smaller than the height of each of the first thread-shaped protrusions and for each of the paper passing regions the second thread-shaped protrusions are disposed in a region outside of the paper passing region,
wherein each of the second thread-shaped protrusions has the height smaller than the height of each of the first thread-shaped protrusions in an entire region from an upstream end to a downstream end in the passing direction of the paper.
2. The paper guide member according to claim 1 , wherein for each of the paper passing regions the second thread-shaped protrusions are provided in a region outside of the paper passing region and corresponding to at least a predetermined dimension from an end of the paper passing region.
3. The paper guide member according to claim 1 , wherein each of the regions where the second thread-shaped protrusions are disposed outside of a paper passing region has a width larger than an interval between the plurality of thread-shaped protrusions.
4. The paper guide member according to claim 1 , wherein the first thread-shaped protrusions are present in a region having a width equal to or smaller than a width of a minimum paper passing region where paper having a minimum width passes, and in one or more outer regions located outside of the minimum paper passing region.
5. The paper guide member according to claim 4 , wherein the outer regions comprise one or more regions located within a maximum passing region where paper having a maximum width passes.
6. The paper guide member according to claim 4 , wherein the height of each of the first thread-shaped protrusions is equal in the width direction of the paper.
7. An image forming apparatus, comprising:
an image forming device that forms a toner image;
a transfer device that transfers, onto paper, the toner image formed by the image forming device;
a static eliminator that eliminates static electricity on the paper after the toner image is transferred by the transfer device in proximity to the paper in a width direction of the paper; and
a paper guide device that guides the paper so that the paper passes with a distance secured from the static eliminator,
wherein the paper guide device comprises the paper guide member according to claim 1 .
8. A paper guide member configured to guide paper having a plurality of paper widths after a toner image is transferred to the paper, wherein paper passing regions, through which the paper passes, have widths corresponding to the plurality of paper widths, the paper guide member comprising:
a plurality of thread-shaped protrusions extending in a passing direction of the paper to guide the paper to pass with a distance secured from a static eliminator that eliminates static electricity in proximity to the paper in a width direction of the paper, the plurality of thread-shaped protrusions adjoining each other across a slit in the width direction of the paper,
wherein the plurality of thread-shaped protrusions comprise:
first thread-shaped protrusions each having a height at which the paper is supported and guided and disposed in each of the paper passing regions;
second thread-shaped protrusions each having a height smaller than the height of each of the first thread-shaped protrusions and for each of the paper passing regions the second thread-shaped protrusions are disposed in a region outside of the paper passing region;
a first coupling part that couples upstream ends of the first thread-shaped protrusions in the passing direction of the paper; and
a second coupling part that couples upstream ends of the second thread-shaped protrusions in the passing direction of the paper,
wherein the second coupling part has a height smaller than a height of the first coupling part.
9. A paper guide member configured to guide paper having a plurality of paper widths after a toner image is transferred to the paper, wherein paper passing regions, through which the paper passes, have widths corresponding to the plurality of paper widths, the paper guide member comprising a plurality of thread-shaped protrusions extending in a passing direction of the paper to guide the paper to pass with a distance secured from static elimination means for eliminating static electricity in proximity to the paper in a width direction of the paper, the plurality of thread-shaped protrusions adjoining each other across a slit in the width direction of the paper,
wherein the plurality of thread-shaped protrusions comprise:
first thread-shaped protrusions each having a height at which the paper is supported and guided and disposed in each of the paper passing regions; and
second thread-shaped protrusions each having a height smaller than the height of each of the first thread-shaped protrusions and for each of the paper passing regions the second thread-shaped protrusions are disposed in a region outside of the paper passing region, wherein each of the second thread-shaped protrusions has the height smaller than the height of each of the first thread-shaped protrusions in an entire region from an upstream end to a downstream end in the passing direction of the paper.