JPS62275967A - Picture forming device - Google Patents

Abstract

PURPOSE:To enable a distributing means to be installed or removed in accordance with the need of a user by removably providing said distributing means on the paper discharge part of a device body. CONSTITUTION:In a paper discharge selector 32 which discharges a sheet of fixed paper to an upper jogger, a middle discharge tray, or to a lower discharge tray, distribution guides 51, 52 are rotatably installed on shafts 54, 55 via a conveying passage 24, and the distribution of sheets of paper is carried out by the cooperation of levers 56, 57 installed on the shafts 54, 55 which are projected out of one side face of a paper discharge unit 53, and a cam 59. This paper discharge selector 32, together with the paper discharge unit 53, can be removably installed on a printer body by installing installation brackets 67 on both side faces of the paper discharge unit 53 to the printer body with screws 68. Thus, a distributing means can be easily installed and removed in accordance with the need of a user.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Object of the Invention] (Industrial Field of Application) The present invention relates to an image forming apparatus that is applied as a laser printer or an electronic copying machine.

(Prior Art) In laser printers and the like, paper on which an image has been formed is ejected from a paper ejecting section of the main body of the apparatus.

Incidentally, recently, a device has been developed in which a sorting means is provided in the paper discharge section, and the paper can be sorted and discharged in a desired direction by the sorting means. This sorting means is used, for example, when sheets to be copied and discharged are arranged and stacked in page order. In other words, if multiple sheets of copied paper are ejected straight, the pages of the paper will be stacked in reverse order, so by changing the ejection direction of the paper, for example upwards, and stacking it inverted, the paper is stacked in page order. .

(Problem to be solved by the invention) However, in the past, the above-mentioned sorting means was fixedly provided, which is convenient for users who need a sorting means, but it is not necessary to have a sorting means. This has become uneconomical for users who do not.

The present invention has been made in view of the above circumstances, and its object is to provide an image forming apparatus in which a sorting means can be attached to the main body of the apparatus according to the user's wishes. It is.

[Structure of the invention]

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention is characterized in that a sorting means is detachably provided in the paper discharge section of the main body of the apparatus.

(Function) A means for distributing is provided in a detachable manner from the main body of the apparatus, and the means for distributing is attached as necessary.

(Example) The present invention will be described below with reference to an example shown in the drawings. FIGS. 6 and 7 are external perspective views and schematic vertical sectional side views showing the internal configuration of the image forming unit 1 equipped with a laser printer as an image forming apparatus of the present invention, and are schematic vertical side views showing the internal configuration. It has become.

In the figure, reference numeral 1 indicates a laser printer as an image forming apparatus, and this laser printer 1 is placed on a multi-force set feeder 2-1-, and a T-bellow feeder 3 is attached to the rear side thereof.

The laser printer 1 has the following configuration. That is, in the figure, 5 is a main body of a laser printer, and the rear part of the upper surface of this printer main body 5 is raised one step higher, and a recess 6 is formed in the center of its two sides. A jogger 7 is provided in this recess 6. Furthermore,
An operation panel display section 9 and an operation panel switch section 10 are arranged on the right side of the four parts 6, and three IC card inserts 11 are arranged on the left side.

Further, an image forming mechanism 4 is installed in the printer main body 5. In other words, 15 in the figure is a rotatably provided photosensitive drum, around which is a charging device 16 and a laser optical system. 17. A visual image device 18, a transfer device 19, a peeling device 20, a cleaning device 21, and a static eliminator 22 are arranged in this order.

Further, within the printer body 5, a conveyance path 24 is formed that extends forward through an image transfer section 23 between the photoreceptor 15 and the transfer device m1f19, and a paper feeding path 24 is formed, which is stored in the bottom of the printer body 5. Paper 21 is automatically fed from the cassette 25 and the paper feed cassette 2'6 of the multi-force feeder 3 via the paper feed roller 28 and transfer roller 29, etc. Manually fed from the manual feed tray 13 The envelopes A and the envelopes A automatically fed from the envelope feeder 3 are guided to the image transfer section 23.

Further, an aligning roller pair 30 is disposed on the upstream side of the image transfer section 23 of the conveyance path 24, and a fixing device 31. A paper discharge selector 32 and a pair of paper discharge rollers 33 are provided as sorting means.

Note that the il1 paper selector 3 is located at the end of the conveyance path 24.
A branch conveyance path 35 is formed, which includes a pair of paper discharge rollers 34 that guide the sheets P, envelopes A, etc. sorted by 2 to the recess 6.

In FIG. 4, 40 is a lower cover, 41 is a front cover, 42 is an upper cover, and 43 is a right cover.

44 is the left cover, 45 is the right cover opening/closing lever.

46 is a lever for opening and closing the upper unit, and 47, 48, . . . , 49 shown in FIG. 5 are control boards constituting a control section.

In the image forming operation, the photoreceptor 15 is driven and uniformly charged by the charging device 16, and then sent to the laser optical system 17. Exposure is performed to form an electrostatic latent image. Next, the electrostatic latent image on the photoreceptor 15 is transferred to a visual imaging device 1B that uses a two-component imaging agent consisting of toner and carrier.
The image is developed and sent to the image transfer section 23 side as a developer image.

Meanwhile, in synchronization with this toner image forming operation, the paper feed cassette 2
5, 26, or 27, or the manually fed M1P, or the seal 1ffiA supplied from the envelope feeder 3 is fed through the aligning roller pair 30, and is placed on the photoreceptor 15 in advance. The developer image formed on the sheet is transferred onto the paper P or the envelope Δ by the movement of one transfer device. Next, the paper P or the envelope A is peeled off from the photoreceptor 15 by the peeler 20 and transferred to the conveyance path 2/! and is sent to the fixing device 31. Here, after the developer image is fused and fixed on the paper P or envelope A, the paper ejection selector 32 selects the upper jogger 7 or the intermediate 41#, which is assigned the ejection direction.
The paper is discharged to a paper discharge tray (not shown) on or below the Mt-ray 12.

Next, regarding the paper ejection selector 32, FIGS.
This will be explained in detail with reference to the drawings. This paper ejection selector 32 is connected via the conveyance path 2111 to the first and second sorters arranged below with guides 51 and 52;
1.52 is rotatably attached to the paper discharge unit 1-53 via a shaft 54.55. The shaft 54
．． One end of 55 protrudes from one side of the paper discharge unit 53, and first and second levers 56 and 57 are integrally attached to this protrusion, as shown in FIG.

The second lever 56 is urged by a spring 58 to rotate upward. Further, a cam 59 is interposed between the first and second levers 56 and 57, and this cam 59 is integrally attached to one end of the rotating shaft 60. Further, the rotating shaft 6o of the cam 59
The other end protrudes from the other side of the sheet discharge units 1 to 53, and a gear 61 is attached to this protrusion as shown in FIG. Drive gear 63 is engaged. A gear 65 is attached to one end of the shirts 1 to 64 of the paper discharge roller 33, and this gear 65 is connected to the drive gear A763 via a gear 66.

The paper ejection selector 32 configured in this manner
.about.53 are attached to and detached from the printer main body 5. That is, mounting brackets 67 are integrally attached to both sides of the paper ejection unit 53, and the mounting brackets 67 are attached to the printer main body 5 with screws 68, so that they can be attached and detached freely. It is provided.

For example, when the copied paper P is to be discharged to the upper jogger 7, the rotation of the drive gear 63 causes the cam 59 to rotate as shown in FIG. 5(a).

As a result, as shown in FIG.
The paper P is raised as shown by the arrow and discharged to the jogger 7.

Further, when the copied envelope A is to be discharged to a lower paper discharge tray (not shown), the rotation of the drive gear 63 rotates the cam 59 as shown in FIG. 5(b). As a result, the rotating ends of the first and second sorting guides 51 and 52 are positioned above the conveyance path 24 as shown in FIG. 4(b), and the envelope A is discharged downward as shown by the arrow. be done.

Also, the copied paper P is moved straight to the paper output tray 12.
When discharging the liquid, each rotation of the drive gear 63 rotates the cam 59 as shown in FIG. 5(C). As a result, as shown in FIG. 4(C), the first and second Jfi guides 512 rotate in opposite directions to open their rotation ends, and the paper P is transferred to the sorting guide 512.
1.52, travels straight, and is ejected to the paper ejection tray 12.

By the way, if the paper ejection selector 32 is not required,
Remove the screws 68 of the mounting bracket 67 of the paper discharge unit 53 and remove the paper discharge unit 53 together.

It goes without saying that the present invention is not limited to the embodiments described above, and can be modified in various ways within the scope of its gist.

[Effects of the Invention] As explained above, according to the present invention, since the sorting means is provided in a detachable manner from the main body of the apparatus, the sorting means can be attached or removed according to the user's needs. This has the effect of being extremely convenient.

[Brief explanation of the drawing]

The drawings do not show one embodiment of the present invention, and FIG. 1 is a configuration diagram showing a paper discharge unit, FIG. 2 is a front view showing a cam mechanism of the sorting means, and FIG. A front view showing the drive mechanism, Fig. 4 is an explanatory diagram of the operation of the distribution guide, Fig. 5 is an explanatory diagram of the operation of the cam mechanism, Fig. 6 is an external perspective view showing the image forming unit, and Fig. 7 is an internal configuration thereof. It is a figure. 5... Printer main body, 32... Paper discharge selector (sorting means), P... Paper.

Claims (3)

[Claims] (1) In a device that discharges paper on which an image has been formed from a paper discharge section of the main body of the apparatus, the paper is removably installed in the paper discharge section, and the direction of the paper discharged from the paper discharge section can be changed to multiple directions. An image forming apparatus characterized in that it is equipped with a sorting means for sorting. (2) The image forming apparatus according to claim 1, wherein the distributing means includes two distributing guides and a cam mechanism for operating the distributing guides. (3) The image forming apparatus according to claim 2, wherein the sorting means moves the sorting guide up and down to change the paper in three directions: up and down and straight forward.