JPS6378161A - Printer device - Google Patents

Abstract

PURPOSE:To contrive to accelerate consecutive printing speed in a write mode without making the constitution of a device into complexity, by setting a supplying interval from a sheet supplying part variably, in a copying mode, and the write mode. CONSTITUTION:The titled device is constituted so that the supplying interval from the sheet supplying part can be set variably in the copying mode, and the write mode. To obtain the copy of an original 3 placed on an original placing table 2, an operating button is depressed first, and the copying mode of the device is set. The device is constituted so that, based on the above operation, the paper supplying interval of a paper supplying device 14 can be set at an interval a little longer including the returning time of the original placing table 2 by a controller automatically. Next, the original placing table 2 is moved in a direction of arrow head, and the plane of the original 3 is irradiated in order in a slit shape, and a reflected light image from the plane of the original 3 is image-formed on the plane of a photosensitive drum 1 electrified uniformly by an electrifier 6 and turned in the direction of arrow head, through a focusing optical fiber flux 7, and the electrostatic latent image of the original 3 can be formed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention sequentially illuminates the surface of a document on a document table in a slit shape, and converts the reflected light image into light 3! A copying function that forms a latent image of a document by forming an image on a J-electrode latent image carrier, and a copying function that selectively emits light from the light-emitting elements of the light-emitting element array based on an appropriate image signal and converts this optical image into the latent image. The present invention relates to a printer device equipped with a writing function that forms a latent image of image information by forming an image on an image carrier, and particularly relates to an improvement of the printer device that increases the printing speed in writing mode. .

[Prior Art] Conventionally, this type of printer device is disclosed in Japanese Patent Application Laid-Open No. 1983-1999. 9
An electrophotographic copying machine as described in Japanese Patent No. 867 is generally known.

That is, as shown in FIG. 2, this device includes a photoconductive photosensitive drum (a) that is disposed inside the main body of the device and rotates in the direction of the arrow; A movably provided document placing table (b) and this placing table (b)
) consists of an illumination lamp (d) that illuminates the document (C) above, and a plurality of light emitting elements such as LEDs (light emitting diodes) arranged in the vicinity of the photosensitive drum (a) along its length. The main part is composed of the light emitting element row (e), and a charger (f) is arranged along the outer peripheral surface of the photosensitive drum (a).
), a focusing optical fiber bundle (o) as an imaging means (
J2), a developing device (h), a transfer device (i), a cleaning device (j), etc. are arranged.

In this device, a document mounting table (b) is placed on the photosensitive drum (a) which is uniformly charged by the charging Z(f).
) The reflected light image from the document (C) above or the light image from the light emitting element row (e) selectively emitted based on an image signal is transferred to the above-mentioned focusing optical fiber bundle (g) (o2). to form an electrostatic latent image of these optical images, this latent image is developed with toner by a developing device (h), and this toner image is applied to a recording sheet (k) supplied from a sheet supplying section (k). 1) and then fix it to obtain a print. When printing is completed, the static elimination lamp (do) disposed between the transfer device (i) and the cleaning device (j)
) emits light to erase static charges on the photosensitive drum (a), and a cleaning device <j) removes residual toner to be used for the next printing operation.

[Problems to be Solved by the Invention] By the way, as shown in FIG. 3, in the copying mode, this type of printer device moves the document table (b) to its proximal stop position in each copying cycle as shown in solid lines. It is necessary to sequentially illuminate one surface in a slit shape, and after illumination, before starting the copying operation, Original table (
b) requires the step of returning the device to the proximal stop position. For this reason, a blank time is required to return the document table (b) to the proximal stop position for each copying cycle, so the feeding interval of the recording sheet (I) from the sheet feeding section (k) is , is set in advance to include this blank time.

Therefore, even when printing is performed continuously in the write mode that does not involve movement of the document table (b), the recording sheet (1) is fed from the sheet supply unit (k) at predetermined intervals. Therefore, there was a problem that the printing speed was slowed by the blank time, and in order to increase the speed, it was necessary to increase the rotational speed of the photosensitive drum (a), which caused a problem that the mechanism was complicated. .

This problem can be solved by fixing the document mounting table (b),
This also applies to a printer device equipped with a mirror scanning type illumination means composed of an illumination lamp, a full-rate mirror, a half-rate mirror, etc., which are movably provided along the lower surface.

[Means for Solving the Problems] The present invention has been made by focusing on the above-mentioned problems, and its object is to increase the continuous printing speed in the write mode without using a complicated mechanism. The object of the present invention is to provide a printer device that can be used for various purposes.

In other words, the present invention sequentially illuminates the document surface on the document table A in a slit shape by relatively moving the document surface on the document table or the illumination means, and converts this reflected light image into a photoconductive latent image. a copying function for forming a latent image of a document by forming an image on an image carrier;
The light emitting elements of the light emitting element array provided near the latent image carrier are selectively caused to emit light based on an image signal, and this light image is formed on the latent image carrier to form an m-image of image information. and a writing function to form a latent image, and develop the latent image.
The present invention is based on a printer device that performs recording by transferring this toner image onto a recording sheet supplied from a sheet supply section, and the supply interval from the sheet supply section can be variably set in copy mode and write mode. It is characterized by this.

In such technical means, the supply interval from the sheet supply unit is set to be long, including the return time of the document loading table, etc. during the copy mode that involves movement of the document loading table, etc.; In a writing mode that does not involve movement, such as, the supply interval is set to the minimum necessary so that continuous printing is possible.

In addition, the selection of the above supply interval can be made by
By selecting one of the g-inclusive modes, the configuration may be such that it is automatically selected, or the configuration may be configured such that the setting of the supply interval can be individually selected separately from the selection of the above modes. .

[Function] According to the technical means described above, the supply interval from the sheet supply unit can be variably set in the copy mode and in the write mode, so that the original 18iFi! ! By setting the supply interval short in the fill mode, which does not involve movement of the stand, etc., it is possible to increase the printing speed during continuous printing.

[Example] Hereinafter, an actual droplet example of the present invention will be described in detail.The printer device of the present invention, like the conventional device, has a photosensitive drum (1) provided inside the device main body and , an original mounting table (2) provided above the photosensitive drum (1) so as to be reciprocally movable, and a document (3) on this mounting table (2).
) and an illumination lamp (4) that illuminates the photosensitive drum (1).
) is an array of light emitting elements provided near the ED array ( ).
5), and along the outer peripheral surface of the photosensitive drum (1) are a charger (6), a focusing optical fiber bundle (self-fock lens array: trade name) (7), and (8). )
, developer (9), transfer device (10), static elimination lamp (11)
and a cleaning device (12), etc., and a position near the lower side of the developing device (9) for supplying recording paper (13) between the photosensitive drum (1) and the transfer device (10). A paper feeding device (14) is provided.

In order to obtain a copy of the document (3) placed on the document table (2) using this device, first, an operation button (not shown) is operated to put the device in a copy mode. Through this operation, the paper feeding interval of the paper feeding device (14) is automatically selected by a controller (not shown) to be a longer interval that includes the return time of the document mounting table (2). . Next, operate the start button (not shown) to move the original table (2) as shown in Figure 1.
) is moved in the direction of the arrow, the surface of the document (3) is sequentially illuminated in a slit shape, and the document (3) is uniformly charged by the charger (6) and transferred onto the surface of the photosensitive drum (1) rotating in the direction of the arrow. 3
) is focused through a focusing optical fiber bundle (7) to form an electrostatic latent image of the document (3).

Then, this latent image is developed with toner by a developing device (9) to become a visible image, and this toner image is transferred by a transfer device (10) onto recording paper (13) supplied from a paper feeding device (14). , the toner is fixedly fixed by a fixing means (not shown) to obtain a copy of the original document (3).

In addition, after copying is completed, the photosensitive drum (1) is illuminated with a static elimination lamp (11).
), the static charge is erased, and a cleaning device (12) removes the residual toner, and the toner is used for the next copying process.

On the other hand, in order to obtain a printed matter using this apparatus based on an image signal from the outside, first, the above-mentioned operation button is operated to put the apparatus into a writing mode. Through this operation, the paper feeding interval of the paper feeding bag r1 (14) is automatically selected by the controller to be the minimum necessary short interval.

Next, by operating the start button above, the LE
E) An image signal is input to the array (5), and based on this signal, each light emitting element of the LED array (5) selectively emits light to form an electrostatic latent image of image information on the surface of the photosensitive drum (1). Ru. This latent image is developed, transferred, and fixed in the same steps as in the copy mode described above to obtain a print based on an external signal.

At this time, in this apparatus, the recording paper (13) is fed from the paper feeder (14) at the minimum necessary interval.
Since it is constructed so that it is continuously supplied, it has the effect of significantly improving the continuous printing speed in the write mode compared to the conventional one.

[Effects of the Invention] As described above, in the printer device of the present invention, the feeding interval from the sheet feeding section can be variably set in the copying mode and in the writing mode. By setting the supply interval in the write mode, which does not involve printing, to a short value, it is possible to increase the printing speed during continuous printing.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the present invention, and is a schematic configuration explanatory diagram of a printer device of the present invention, and FIGS. 2 and 3 show a conventional printer device, and FIG. 2' is a schematic diagram of the printer device. The configuration explanatory diagram and FIG. 3 respectively show the operation explanatory diagram. [Description of symbols] (1)...Photosensitive drum (2)...Document stand (3)...Document (4)...Illumination lamp (5)...LED array (7) (8) ...Focusing optical fiber bundle (13)...
Recording paper (14)...Paper feeder 3, N printing

Claims (1)

[Claims] The document surface on the document table or the illumination means is moved relatively to sequentially illuminate the document surface on the document table in a slit shape, and the reflected light image is formed on a photoconductive latent image carrier. A copying function that forms a latent image of the original by selectively emitting light from a light emitting element array provided near the latent image carrier based on an image signal, and converting this light image into the latent image. It is equipped with a writing function that forms a latent image of image information by forming an image on a carrier, develops the latent image with toner, and performs recording by transferring this toner image onto a recording sheet supplied from a sheet supply section. A printer device, characterized in that a supply interval from the sheet supply unit can be variably set in a copy mode and a write mode.