JPS63208441A - Image formation device - Google Patents

Abstract

PURPOSE:To feed and discharge sheets and the like with an operation on a single panel and enable the easy solution of a trouble by constituting two panels for a sheet feed and discharge operation, stacking discharged sheets on a stacker by turns via the reversal process thereof and enabling the feed and discharge operation on a main panel. CONSTITUTION:A sheet feed cassette 1 is pulled out to the front of the titled main body for feeding sheets 2 therein. When the device has been operated, the sheets 2 are fed out piece by piece to a sheet carriage passage and transferred to a process unit 14 for image formation. And sheets as printed are stacked piece by piece on a stacker 6, with the printed side thereof directed downward and taken out from the front side of the main body. If a trouble has occurred during the carriage of the sheets 2, the upper part 15B of the main body is opened about a hinge 7 and the sheet carriage passage is exposed, thereby enabling easy repairs and the restoration of a proper condition. Therefore, sheet feed and discharge can be done with a single panel operation and repairs can be done easily without re-paging sheets.

Description

[Detailed Description of the Invention] [Summary] This invention provides an image forming apparatus in which the paper supply surface and the paper ejection surface are configured into two surfaces, and the ejected paper sheets are stacked one after another, and page editing is required and operation is difficult. In order to solve the problem of poor performance, we made it possible to take out paper from the paper cassette, paper insertion slot, and paper stacker from the main surface.
The structure is such that the paper is inverted and stacked on the paper stacker 7.

[Industrial application field]

The present invention relates to an image forming apparatus, and particularly to an image forming apparatus with improved operability.

Recently, image forming apparatuses have been widely used as output devices for personal computers, word processors, and the like.

These devices require a narrow installation space;
For example, the device is placed on a desk and used. On the other hand, the amount of information in these devices is increasing, and the amount of information output is also increasing. Therefore, there is a need for an image forming apparatus that can operate on the negative side, stack output sheets in page order, has good operability, and can be easily restored in the event of a failure.

[Conventional technology]

A conventional image forming apparatus has the structure shown in FIG. 3, and paper is generally fed from the A side of the main body 15-1, and the paper on which the image is formed is fed to the back side B of the main body 15-1. It is a structure that is discharged.

Of course, there is also a device that reverses the discharged sheets and stacks them in page order, as shown in FIG.
Since the main body can be opened and closed by being divided into upper and lower parts, a paper reversing mechanism 40 and a paper stacker 60 are particularly provided on the back of the main body.

[Problems to be Solved by the Invention] As mentioned above, in the conventional device, there was a problem in that the paper was ejected from the back of the device, which was different from the paper supply surface, resulting in poor operability. .

SUMMARY OF THE INVENTION It is an object of the present invention to provide an image forming apparatus with good operability, which can be operated from one side in view of the above conventional situation, and can easily handle failures in the paper transport section.

[Failure to solve the problem]

In this invention, as shown in FIG. 1, the main body 15 is divided into upper and lower parts around the paper conveyance path, and the divided upper main body part 15B is configured to be openable and closable with respect to the lower main part 158 by a hinge 7. has been done. The paper feed cassette 1 storing sheets of paper is slidably housed in the lower main body part 158 so that it can be pulled out and taken out from the main surface of the main body, for example, the front. In addition, the lower main body part 158 has a paper feeding mechanism 1 that feeds out the sheets of paper 2 stored in the paper feed cassette 1 one by one toward the front side of the main body.
3, a first reversing mechanism 3 for reversing the front and back sides and traveling direction of the fed sheet, and conveyance rollers 9 and 11 facing the IEIII transport path. On the other hand, the upper main body section 15B is provided with a printing section 14.10 facing the paper conveyance path, and a second reversing mechanism 4 for reversing the front and back of the printed paper and the direction of travel, and a second reversing mechanism 4 for reversing the printed paper, Each paper is provided with a paper ejection mechanism 12 for ejecting the paper to a stacker 6 provided on the upper surface.

[Effect]

In the image forming apparatus of the present invention, paper can be supplied to the paper insertion slot and the paper feed cassette from the front of the main body, and the paper placed on the stacker 6 can also be taken out from the front of the main body, making it possible to operate on the negative side. .

Furthermore, the printing side of the paper on the stacker 6 is facing down.
The ejected sheets are stacked one on top of the other in the order of their printed pages, making page editing unnecessary. Furthermore, since the main body can be opened and closed in sections around the paper transport path, troubleshooting during transport becomes easier.

〔Example〕

FIGS. 1 and 2 are schematic side views showing one embodiment of the present invention, and FIG. 2 shows the upper main body in an open state. As shown in both figures, the main body 15 is divided into upper and lower parts with the paper conveyance path in between, and is divided into a lower main body part 15A and an upper main body part 15B.
and are connected by a hinge 7 at the rear of the main body. The upper body portion 15B can be opened upward with this hinge joint as the central axis.

The lower main body portion 15A is provided with a space for storing the paper feed cassette 1, and the paper feed cassette can be freely inserted into and taken out from the cassette insertion opening on the front surface of the main body. In addition, on the front side of the main body, there are a pink roller 13 that feeds out the topmost paper 2 stored in the paper feed cassette 1 one by one, a conveyance roller 8 that conveys the fed out paper 2, and a conveyance roller 8 that conveys the front and back of the conveyed paper. A first reversing mechanism 3 is provided for reversing and changing direction. The lower main body portion 15A is further provided with transport rollers 9 and 11 facing the paper transport path on the dividing line.

On the other hand, the second main body section 15B faces the paper conveyance path and includes a process unit 14 for image formation and a fixing roller 10.
Further, a second reversing mechanism 4 for reversing the paper after the image is fixed and reversing the direction of the paper after the image is fixed is provided at the rear of the main body where the hinge joint is located, and a feeding roller 12 for feeding out the paper that has been turned over; A stacker 6 is provided on the second side of the main body to store the sheets fed out. Further, a paper insertion slot 5 that can be manually operated is provided on the front side of the upper main body part 15B and the lower main body part 15A, which are divided into two parts, on the dividing line.

Now, to explain an example of the operation of the configuration described in item 1, when replenishing the paper feed cassette 1 with paper 2, the paper feed cassette 1 is pulled out in the direction of the arrow in FIG. When paper supply is completed, the paper feed cassette 1 is pushed in the direction opposite to the direction of the arrow to bring it into the state shown in FIG.

When the image forming apparatus is operated in this state, the pick roller 13 rotates and feeds out the paper 2 one by one, and then the paper 1 is not sent out to the general feeding path by the conveyance roller 8. At this time, the first
In the reversing mechanism 3, the front and back sides and the direction of travel of the sheet 2 are reversed. Note that this paper reversal is based on the reason that the paper feed cassette 1 is provided at the bottom of the main body 15 to reduce the area of the apparatus. Further, sheets manually inserted from the sheet insertion port 5 are also inserted into the sheet conveyance path.

The paper 2 sent to the paper transport path is transported by a general transport roller 9 to a process unit 14 for image formation, where a toner latent image is transferred onto the paper, and then transferred to a fixing roller 10.
Fixation is performed at This printed paper is transported by the transport roller 1.
1, the second reversing mechanism 4, that is, a guide plate with a circular cross section, reverses the front and back and the direction of travel, and the feed rollers 12 sequentially stack N on the stacker 6 with the printed side facing down. placed. This printed paper is taken out from the front side of the main body.

If a failure occurs during sheet conveyance, the upper main body portion 15B is opened centering on the hinge 7, as shown in FIG. In this open state, the paper conveyance path is exposed, and trouble recovery is easy.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, -
In addition to being able to feed and eject paper from the image forming device using surface operations, there is no need to edit the pages of printed paper, and it takes up a small space and has a relatively simple configuration, making it easy to recover from failures. It is extremely effective in operating the device.

[Brief explanation of the drawing]

FIGS. 1 and 2 are side views schematically showing an embodiment of the present invention, and FIGS. 3 and 4 are views schematically showing main parts of a conventional image forming apparatus. In the figure, ■ is a paper feed cassette, 2 is paper, 3 is a first reversing mechanism, 4 is a second reversing mechanism, 5 is a paper insertion slot, 6 is a paper stacker, 7 is a hinge, and 15 is a main body.

Claims (1)

[Claims] The main body (15) of the apparatus is divided into upper and lower parts around the paper transport path, and the divided upper main body part (15B) is configured to be openable and closable, and the lower main body part (15A) is configured to carry paper (
2), a space for storing the paper feed cassette (1) containing the
A cassette insertion slot through which a paper feed cassette (1) can be inserted into and taken out from the storage space, a paper feed means (13) that feeds out sheets of paper one by one from the paper feed cassette, and a paper feeding means (13) that reverses the front and back and direction of movement of the fed sheets. A first reversing mechanism (3) and conveyance rollers (9, 11) facing the paper conveyance path are provided, and the upper main body portion (15B) is provided with a printing unit (14, 10), a second reversing mechanism (4) that reverses the front and back of the printed paper and the direction of travel, and a paper ejection mechanism (4) that discharges the reversed paper to a stacker (6) provided on the top surface of the main body. 12) respectively, and the image forming apparatus is characterized in that paper feeding and paper ejection operations can be performed from the main surface side of the main body where the cassette insertion slot is provided.