JPS59202468A - Recording device - Google Patents

Abstract

PURPOSE:To facilitate operation, such as removal of jammed paper or exchange of parts, irrespective of the sites of the jammed paper and the parts to be exchanged, by installing an upper machine body releasably from the lower machine body in the perpendicular direction. CONSTITUTION:An upper machine body 1 is combined with the lower machine body 2 with 2 links 20, 21 having turning pair at the ends of them arranged at each of the 4 positions of both bodies 1, 2, and both links make it possible to release the body 1 upward till both links 20, 21 becomes straight. The body 1 is provided with a photosensitive drum 3; a cleaner 4; a destaticizing lamp 5; a device for forming an electrostatic latent image consisting of an electrostatic charger 5 and an exposing device composed of an exposing lamp 6 and a light converging transmitting body 7 for projecting light reflected from an original on the uniformly charged surface of the drum 3; a developing device 8; a paper feed cassette 9; a roller 10 for feeding paper from the cassette 9 conveying rollers 11, 12; an upper fixing roller 13; an original platen; a control panel, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improvements in recording devices such as copying machines and printing machines.
The present invention relates to an improvement in the opening structure of a recording device in which an upper body can be opened to a lower body.

[Prior art]

Conventionally, as the above-mentioned recording device, the upper body and the lower body are hinged on the recording paper feeding side or the recording paper ejection side, so that the upper body can be opened on the recording paper discharging side or the recording paper feeding side. Alternatively, as seen in Japanese Unexamined Patent Publication No. 57-202550, by hinge-coupling the upper body and the lower body on one side of the recording paper conveyance path, the need for replacing the upper body with the other body can be avoided. If this occurs on the feeding (lI) or ejecting side of the recording paper where the jammed paper is provided, there is a problem in that it is difficult to remove the jammed paper or replace parts.

The latter method has the advantage of making the work easier when it comes to removing jammed paper, but on the other hand, it makes the work more difficult overall when it comes to replacing parts whose length spans almost the entire width of the machine. There's a problem.

[Purpose of the invention]

The present invention was made in order to solve the above-mentioned problems with recording devices in which the upper body of the machine is opened. This is what we provide.

[Structure of the invention]

The present invention relates to a recording apparatus in which the body is divided into two parts substantially along the conveyance path of the recording paper, and the upper body can be opened to the lower body, and the upper body can be opened vertically. A recording device characterized by:

〔Example〕

The present invention will be explained below based on the embodiments shown in FIGS. 1 to 6.

FIG. 1 and FIG. 3 are front views of the recording device of the present invention, respectively;
Figures 2 and 6 are side views of the recording device of the present invention with the upper body opened, Figure 4 is a front view of the recording device of the present invention with the upper body opened, and Figure 5 is the upper body. FIG. 7 is a front view showing another example of a link mechanism that connects the lower fuselage and the lower fuselage.

The figure shows an example of an electrophotographic copying machine, where 1 is an upper body and 2 is a lower body. Upper body includes a charging device 5 that uniformly charges the surface of the photoreceptor drum 3 that has been entrained, an exposure lamp 6 that irradiates the document surface, and a condensing light that projects reflected light from the document onto the uniformly charged surface of the photoreceptor drum 3. Transmission body (
For example, an electrostatic image forming device consisting of an exposure device (trade name: Cellbox Lens) 7, a developing device 8 that develops the electrostatic image into a toner image, and a feed roller 10 that feeds recording paper from a paper feed cassette 9. , upper conveying rollers 11 and 12 that convey the recording paper between the feed roller 10 and the photosensitive drum 3, an upper fixing roller 13 that fixes the toner image transferred to the recording paper, and an upper surface (not shown). A document mounting table that reciprocates to the side, driving devices for the above-mentioned devices, and a control panel 14 are provided on the front side of the upper surface.

The lower body 2 includes an insertion section 2a of the paper feed cassette 9, lower conveyance rollers 11' and 12' that convey the recording paper between the feed row 210 and the photoconductor drum 3, and the photoconductor drum 3.
Transfer device 15 for transferring the upper toner image onto recording paper
and a separating device 1 that separates the recording paper from the photoreceptor drum 3.
6, and a lower fixing roller 13 that fixes the toner image on the recording paper.
', a conveyor device 17 for conveying recording paper between the separating device 16 and the lower fixing roller 13', and a recording paper discharge section 2b.
and a motion transmitting means for moving members such as the conveyor device 17 of the lower body 2, which can be engaged with and disengaged from a drive device (not shown) provided in the upper body 1.

Note that the drive device may be provided within the lower body 2, and in that case, it is provided so as to be interlocked with equipment in the upper body 1. 1
Reference numeral 8 denotes a document tray attached to the upper body 1, and numeral 19 denotes a recording paper tray attached to the lower body 2.

In the recording device shown in FIGS. 1 and 2, the upper body 1 and the lower body 2 are connected by links 20 and 21 provided at four locations and having two rotating pairs at both ends. , so that the upper fuselage has two links 2
0.21 can be opened upwardly relative to the lower fuselage l, as shown in FIG.

In the recording device shown in FIGS. 3 and 4, the lower fuselage 2
The slot 22a of the link 22 is connected by a circular pair.
is engaged by a pin 23 provided on the upper fuselage 1, and the upper fuselage 1 can be opened upwardly relative to the lower fuselage 2 until the bin 23 reaches the end position of the slot 22a of the link 22. In addition,
The link 22 in FIG. 3 has a branch groove that supports the opening of the upper body 1 only at the end position of the slot 22a, but the link 22 in FIG. 4 further has a branch groove in the middle. therefore,
The opening of the upper body 1 of the recording device shown in FIG. 3 is performed only in one stage of the open state shown in FIG.
In the recording device shown in the figure, this can be done in two stages.

In addition, the coupling mechanism between the upper body 1 and the lower body 2 includes a fifth
In addition to the link mechanism shown in the figure, there is also an engagement mechanism between a rack or threaded rod provided on one of the upper or lower fuselage and a pinion or nut on the other, a ball provided on the lower fuselage, and a ball attached to the tip of the pole. Various mechanisms may be employed, such as a mechanism in which a pulley is provided and the lower end of the upper body is raised in a hanging manner via the pulley. However, the link mechanism shown in FIGS. 1 to 4 is preferable because of its simple structure.

FIG. 6 shows an example in which a shock absorbing plunger device 24 such as an air cylinder is provided to prevent the upper body 1 from accidentally falling when the upper body 1 is opened. In this case, the plunger device is used for buffering, but for example, a hydraulic plunger device may be used in place of the link mechanism to allow the upper body 1 to open upward relative to the lower body 2. Of course.

〔Effect of the invention〕

According to the present invention, since the upper body 1 can be opened upward and parallel to the lower body 2, no matter where the recording paper jam occurs, there is no need to replace parts that span the entire width of the machine. Even when paper jams occur, it is easy to remove jammed paper and replace parts, which is an excellent effect.In particular, it prevents damage to the photoconductor surface and damage to other parts. There are also great benefits associated with this.

Note that, as mentioned earlier, the present invention is not limited to copying machines;
It can also be applied to printing machines. Furthermore, the motion of the moving members such as the conveyor device 17 attached to the lower body 2 is not limited to the one transmitted from the drive device of the upper body 1 as in the above-mentioned example; It may be something like the one given by.

[Brief explanation of drawings]

FIG. 1 and FIG. 3 are front views of the recording device of the present invention, respectively;
Figures 2 and 6 are side views of the recording device of the present invention with the upper body opened, Figure 4 is a front view of the recording device of the present invention with the upper body opened, and Figure 5 is the upper body. FIG. 7 is a front view showing another example of a link mechanism that connects the lower fuselage and the lower fuselage. 1... Upper fuselage, 2... Lower fuselage, 3.-
・Photoreceptor drum, 4...Cleaning device, 5.
...Charging device, 6...Exposure lamp, 7...
Condensing light transmission body, 8...-Developing device, 9... Paper feed cassette, 10... Feeding roller, 11, 12...
・Upper conveyance roller, 11', 12'...lower conveyance roller,
13... Upper fixing roller, 13'... Lower fixing roller, 14... Control panel, 15... Transfer device, 16... Separating device, 17... Conveyor device, 18... Document Place plate, 19...Recording paper tray is plate, 20-22...Link, 22a...Slot hole,
23...-Bin, 24... Plunger device. Patent applicant Konishiroku Photo Industry Co., Ltd. 45

Claims (1)

[Scope of Claims] (Li) In a recording apparatus in which the body is divided into two parts substantially along the recording paper conveyance path and the upper body can be opened to the lower body, the upper body can be opened vertically. (2) The recording device according to claim 1, wherein the upper body and the lower body are connected by a link mechanism. (5) An image forming body is provided in the upper body. A cleaning device for the image forming body, an electrostatic image forming device for the image forming body, a toner developing device, and a driving device thereof are provided, and the lower body is provided with a transfer pole, a separation pole, and a recording paper. 3. The recording apparatus according to claim 1, further comprising: a lower support conveyance means; and a motion transmission means for the lower support conveyance means that can be engaged with and disengaged from a drive device of the upper body.