IP Library Granted Patent US 11,209,763
Granted Patent B2
US 11,209,763 · App. 16/522,878 · Granted Dec 28, 2021

Paper guide member and image forming apparatus

Inventor: Akira Shimodaira (Kanagawa, JP)
Assignee: FUJIFILM Business Innovation Corp.
G03G15/6529G03G2215/00409G03G2215/00649
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,209,763
App. No.
16/522,878
Granted
Dec 28, 2021
Kind
B2
Abstract

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.

Claims (29)

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.

Assignments (2)
CHANGE OF NAME Recorded Apr 29, 2021
From: FUJI XEROX CO., LTD.
To: FUJIFILM BUSINESS INNOVATION CORP.
Reel/Frame 056092/0913 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 29, 2019
From: SHIMODAIRA, AKIRA
To: FUJI XEROX CO., LTD.
Reel/Frame 049891/0170 →
Priority Claims (1)
JP JP2019-024844 · Feb 14, 2019 · national
Continuity (1)
Related Publication 20200264549A1 · Aug 20, 2020