JPH0444728B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reader printer that can be switched between a reader state and a printer state.

Conventionally, in this type of reader printer, the printer section constituting the printer state is stacked above or below the reader section constituting the reader state, or the reader section is disposed on the rear side. be.

When the printer section is disposed above the reader section, operations such as loading and unloading copy paper, clearing paper jams, replenishing developer, etc. are performed at a high position, which is inconvenient. Furthermore, when the printer section is disposed at the rear of the reader section, the operator of the reader section has to operate the printer section from the rear side, resulting in poor operability and an increase in the size of the device. In order to solve such operational drawbacks, the equipment has tended to become more complex and larger.

In addition, in devices where the printer section is placed on the upper or lower side, the paper feed section, fixing device, paper ejection section, etc. are fixed to the main body of the device, so a guide plate that forms a paper conveyance path for removing jammed paper is necessary. cannot be retracted far from the guide position, and the space created by the retraction of the guide plate is narrow, making it difficult to insert your hand and pull out the jam paper, and the jam paper may tear and remain in the conveyance path. , there were drawbacks such as damage to nearby parts.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a reader printer which eliminates the drawbacks of the above-mentioned conventional examples, has a compact and simple device, and has excellent operability in handling jam paper and the like.

The present invention will be explained below with reference to embodiments shown in the drawings.

1 to 3 show a microfilm reader printer to which the present invention is applied, in which an original image, for example, a microfilm, is held on a film carrier 5, includes an illumination lamp 1, a condenser lens 2, a reflecting mirror 3, and a condensing lens. 4. In the reader mode, one frame of the microfilm image is transmitted to the screen 40 arranged in front of the main body 50 of the apparatus by the projection lens 36, the optical path switching mirror 37 at the solid line position, and the fixed mirrors 38, 39 fixed at fixed positions. The image is enlarged and projected to form the leader section.

In the printer mode, the optical path switching mirror 37
is rotated to the chain line position 37' and switched to the printer optical path. In this state, 1 part of the microfilm
The image of each frame is transferred to the image forming device 16 by a first scanning mirror 41 that moves in the direction of arrow a, a fixed mirror 42, and a second scanning mirror 43 that moves in the direction of arrow b.
The image is projected onto the printer section. The scanning mirrors 41 and 43 are coupled to a drive source (not shown) and reciprocate in directions perpendicular to each other. Further, the scanning mirrors 41 and 43 have an elongated shape that projects a slit-shaped partial area of the entire image of one frame of the microfilm onto the photosensitive drum 44 in the image forming device 16, and the scanning mirrors 41 and 43 have an elongated shape that projects a slit-shaped part of the entire image of one frame of the microfilm onto the photosensitive drum 44 in the image forming device 16. By moving synchronously, one part of the microfilm can be
The frames are sequentially scanned and exposed onto the photosensitive drum 44 in the form of strips. The photosensitive drum 44 is arranged to rotate about an axis extending parallel to the screen surface. Arranged around the photosensitive drum 44 are a charger 30 that charges the photosensitive drum, a developer 31 that visualizes the electrostatic latent image on the photosensitive drum, a cleaner 32 that cleans the surface of the photosensitive drum 44, and the like. It constitutes the image forming means of the printer section.

A paper feed conveyance device 18 surrounded by a dotted line is disposed below the image forming device 16, is supported by a support shaft 19 at one end, and is close to the image forming device 16 at the other end by a holding member (not shown). The sheet feeding device 18 is held at a lower position, and is arranged so as to have a space A between the lowest surface position a in the apparatus main body 50 and the lowest surface b of the sheet feeding and conveying device 18, into which the conveying device 18 can fall significantly. Further, the paper feeding and conveying device 18 is provided with a paper feeding box 20 that stores copy paper 21 therein, a paper feeding roller 22 that feeds out the copy paper 45 in the paper feeding box 20, and a paper feeding roller 22 that feeds out the copy paper 45 in the paper feeding box 20. A first guide plate 23 that guides the copy paper by folding it into a U-shape, a feeding roller 24 that conveys the copy paper to the transfer position, a transfer charger 25 that transfers the visible image on the photoreceptor 44, and a transfer process. a second guide plate 26 that guides the copied copy paper 45 along the upper part of the paper feed box 20; a fixing device 27 that fixes the transferred image on the copy paper with a pair of fixing rollers and conveys the copy paper toward the front of the main body of the apparatus; , are arranged respectively.

The copy sheets 45 are fed one by one from the paper feed box 20 by the paper feed roller 22, pass through the first guide plate 23 and the feed roller 24, and then the developed image on the photosensitive drum 44 is transferred by the transfer charger 25. It is guided to the fixing device 27 via the second guide plate 26, and the discharge tray 28
is discharged.

If the copy paper becomes jammed during conveyance, the conveyance device 18 is unlocked, the conveyance device is rotated about the support shaft 19, and the end of the conveyance device on the fixing device side is dropped. By dropping and rotating the entire conveying device, the conveying device 18 is separated from the image forming device 16, creating a large space above, so that jammed copy sheets can be easily removed (jamming).

As described above, according to the present invention, since the paper feed box, the transfer charger, and the fixing device are integrally arranged in the conveying device, the entire conveying device can be enlarged toward the space below the rotating shaft. It becomes possible to drop the image forming apparatus, free up most of the conveyance path, form a wide space for jam processing, and easily perform maintenance and service work on the image forming apparatus, conveyance apparatus, etc. Furthermore, since the copy paper that has been fixed in the fixing device is discharged to the front side of the device where the screen is disposed, the operator can perform operations such as taking out the copy paper from the side where the screen is observed.

In particular, the most effective layout has become possible with respect to various operations of the printer unit (copy paper loading, ejection, paper jam removal, image forming apparatus, etc.) and other maintenance and serviceability. Moreover, it has the effect of making the entire device smaller and simpler.

[Brief explanation of drawings]

The drawings illustrate the present invention; FIG. 1 is a cross-sectional side view of the reader section, FIG. 2 is a cross-sectional front view of the print section, and FIG. 3 is a perspective view of the optical systems of the reader section and printer section. 1 is an illumination lamp, 36 is a projection lens, 37 is an optical path switching mirror, 38, 39, 42 are fixed mirrors, 40 is a screen, 41, 43 are scanning devices, 16
1 is an image forming device, 18 is a paper feed conveyance device, and F is a microfilm.

Claims (1)

[Scope of Claims] 1. A reader printer that can be switched between a reader state in which an image is projected onto a screen and a printer state in which an image is projected onto a photoreceptor to obtain a copy image, comprising: a device main body with a screen disposed in front; , an optical system disposed within the apparatus main body and projecting an image onto the screen and the photoreceptor; an image forming apparatus disposed within the apparatus main body; and a releasable conveyance apparatus disposed below the image forming apparatus. The image forming apparatus includes: the photoreceptor rotatable around an axis extending parallel to the screen surface; a charger that charges the photoreceptor; and a developer that visualizes the latent image on the photoreceptor; The conveyance device includes a paper feed box that stores copy paper, a paper feed roller that feeds the copy paper from the paper feed box, and a U-shaped fold back of the copy paper sent out by the paper feed roller and guides it toward the transfer position of the photoreceptor. a transfer charger for transferring the visible image formed on the photoreceptor onto copy paper; and a second guide member for guiding the copy paper after passing through the transfer process along the upper part of the paper feed box. , a pair of fixing rollers that convey copy paper guided by a second guide member toward the front of the apparatus main body, and an end of the conveying device on the fixing roller side is in a first position in a dropped state and in an operating state. A reader printer characterized in that a rotation shaft is provided at an end of the conveying device on the first guide member side so as to be able to take the second position.