JPS6274868A - Printer - Google Patents

Abstract

PURPOSE:To make sorting work ever so easy as to improve an availability factor in a printer, by making an on-off plate operate on the basis of joint detecting information, while sorting the nonuse printing paper cut off automatically, and housing it in a nonuse paper housing. CONSTITUTION:A nonuse paper housing 43 is installed in a lower part at a paper passing spot of a paper handling part 34 which cuts continuous paper 35 after being printed and houses it in a vessel. And, an on-off plate 42 to be opened or closed by detecting information 51 of a joint zone is installed in an upper part of this nonuse paper housing 43. And, this on-off plate 42 is operated by the detecting information 51 of the joint zone whereby the nonuse paper unprinted is automatically sorted and removed. With this constitution, sorting work by troublesome man power is no longer required, and the nonuse paper is easily sorted and eliminable without stopping operations of a printer.

Description

[Detailed Description of the Invention] [Summary] A printing device that prints long continuous sheets of paper having unnecessary areas such as seams at high speed. The seam area is detected by the provided continuous paper seam area detection means, and based on this detection information, the paper having the unnecessary area is selectively transferred to a paper processing unit that cuts and stores the continuous paper printed in the printing unit. printing device provided with means for accommodating the printer.

[Industrial application field]

The present invention relates to a printing device such as a laser printer, and in particular, in a device that prints long continuous paper at high speed, the present invention detects the position of a seam in the continuous paper in advance, and detects areas where the seam is not needed based on this detection means. The present invention relates to a printing device that selectively removes unnecessary paper having the following properties.

A photosensitive drum around which a photoconductive layer of selenium (Se) or the like is formed is irradiated with a laser beam or the like based on printed information to form an electrostatic latent image, and a developer is used to apply toner to the area where the latent image is formed. Laser printers are well known in which a laser beam is deposited and developed, and a printed image obtained by this development is transferred and recorded onto recording paper using a transfer device.

This laser printer has high resolution, can print clearly at high speed, and is a non-impact printer that does not generate noise, so it is widely used as an output device for electronic computers.

By the way, such printing devices are required to perform printing operations at increasingly high speeds, and for this reason, recently 2000
High-speed laser printers have been developed that print continuous sheets of paper in a few minutes.

In such printing devices, the paper used for printing is spliced using adhesive tape or the like to create a long continuous sheet of paper, thereby reducing as much as possible the downtime of the device that occurs when replacing paper.

Therefore, in addition to a printing section such as a laser printer, such printing devices have a paper supply section that supplies long sheets of paper to the printing section, and a paper processing section that cuts the continuous paper that is printed and sent out from the printing section. It is equipped with

By the way, high-quality printing cannot be obtained at the seams of the above-mentioned continuous paper due to reasons such as poor transfer of toner images, so blank information is provided to the printing unit from the control device that controls this printing device in those areas. Then, based on that information, the sheet of paper having that seam is left as a blank sheet without being printed.

Therefore, there is a need for a printing apparatus that automatically sorts out and removes blank sheets as easily as possible when printed continuous sheets containing such blank sheets are cut.

[Conventional technology]

FIG. 4 is a schematic diagram of a general laser printer device. As shown in the figure, a photoconductive layer such as selenium (Se) is formed around the surface of the photosensitive drum 1 that rotates in the direction of arrow A. After being uniformly charged by the electric device 2, a laser light source 3 irradiates the photosensitive drum 1 with laser light based on the printed information to form an electrostatic latent image on the surface of the photosensitive drum 1.

Furthermore, the toner in the developing device 4 is scraped up onto the surface of the photosensitive drum 10 by the developing device 4 disposed around the photosensitive drum 1, adheres to the electrostatic latent image formed on the photosensitive drum 1, and is developed. becomes a toner image.

This toner image is transferred onto a paper 6 conveyed from the paper supply device 5 using a transfer device 7, and the transferred image transferred onto the paper 6 is further fixed by a fixing device 8, and then the toner image is transferred. The fixed paper is cut to a predetermined size by the paper processing device 9 and stored.

The toner remaining on the photosensitive drum 1 is removed by a static eliminator 1.
After the electric charge is removed by the cleaning brush 11 and the cleaning fleece 12, the electric charge is removed by the cleaning brush 11 and the cleaning fleece 12.

By the way, laser printers are becoming faster and faster.
Therefore, it is necessary to use continuous paper as long as possible in order to reduce the downtime of the apparatus for paper replacement as much as possible.

To form such a long continuous sheet of paper, a continuous sheet of paper 22 with folds 21 formed by perforations as shown in FIG.
They are connected using an adhesive tape 23 or the like to form a seam region 24 between them.

By the way, since toner images are not well transferred to this seam area 24, an opening 27 is usually provided at the side edge of the sheet 25 on which the seam area 24 is formed or the sheet 26 adjacent thereto. A detector combining a light emitting diode and a phototransistor is installed to sandwich the joint area 24, and the
The location information of the E25 is provided to a control device such as a CPU that controls this device.

Then, based on this position information, the control device provides blank information to the printing unit so that no printing operation is performed on that portion of the paper 25, and notifies the operator that there is a seam using a buzzer or the like.

Thereafter, blank sheets 25 are selected and taken out from among the sheets cut into predetermined dimensions by the sheet processing device 9.

[Problem that the invention seeks to solve]

However, with such a device, the operator must stop the device and sort out the blank sheets, which is a cumbersome task and requires time to stop the device, which reduces the operating time of the device. there were.

[Means for solving problems]

The present invention provides a printing device that solves the above problems.

As shown in FIGS. 1 and 2, the printing apparatus of the present invention includes an unnecessary paper storage container 43 that stores unnecessary printing paper 45 having a seam area below the paper passage area of the paper processing section 34.
Then, an opening/closing plate 42 is provided on the unnecessary paper storage container 43, and the opening/closing plate 42 is operated based on the seam detection information 51, and the opening/closing plate 42 is operated based on the seam detection information 51 to remove the cut unnecessary paper 45. The paper is automatically sorted and stored in the unnecessary paper container 43.

[Effect]

In the printing apparatus of the present invention, an unnecessary paper container 43 is provided at the lower part of the paper passage part of the paper processing section 34 that cuts the continuous paper 35 after printing and stores it in a container, and the unnecessary paper container 43 is provided above the unnecessary paper container 43. An opening/closing plate 42 is provided that opens and closes based on detection information 51 of the seam area, and by operating the opening/closing plate 42 based on the detection information 51 of the seam area, unnecessary paper 45 that has not been printed is automatically sorted and removed, eliminating the need for complicated manual operations. This allows unnecessary paper to be easily sorted and removed without the need for sorting work or stopping the operation of the apparatus.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a system configuration diagram of a printing apparatus according to the present invention, FIG. 2 is a perspective view showing an example configuration of a paper processing section of the apparatus according to the present invention, and FIG. 3 is a detailed view showing the main parts of FIG. 2. It is.

As shown in FIG. 1, the printing apparatus of the present invention includes a printing section 31 such as a laser printer, a control section 32 that controls the printing section 31, a paper supply section 33 that supplies continuous paper to the printing section 31, and a printing section 31 that supplies continuous paper to the printing section 31. The paper processing section 34 cuts and stores the continuous paper printed in the section 31.

As shown in FIG. 2, the structure of the paper processing section 34 includes a conveyance roller 36 that pinches and conveys the continuous paper 35 printed by the printing section 31 from both upper and lower surfaces, and a conveyor roller 36 that pinches and conveys the continuous paper 35 printed by the printing section 31, and a conveyance roller 36 that pulls the paper 35 and adjusts the perforation position. A pair of burst rollers 37 and 38 that cut (separate) the paper 35, and conveyance rollers 40 and 41 that convey the cut paper 35 to the paper stacker 39.
An opening/closing plate 42 is provided at the bottom of the paper 35 between the burst roller 38 and the conveying roller 40 and moves up and down based on the seam detection information described above, and an unnecessary paper container is provided at the bottom of the opening/closing plate 42. It consists of 43.

As shown in FIG. 3, the opening/closing plate 42 is supported by a rotating shaft 44 extending in a direction perpendicular to the moving direction of the paper 35 shown by arrow B at the lower part of the paper 1M feeding path, and has a curved lower surface. It is made of plastic material in the shape of a triangular pyramid. However, when the rotating shaft 44 of the lever is rotated by the seam detection information, it swings along the direction of arrow C, and in the state shown by the dotted line, the movement of the blank unnecessary paper 45 is blocked by the tip of the opening/closing plate. The paper is dropped into an unnecessary paper container 43 provided at the bottom.

Next, the operation of the printing apparatus of the present invention will be explained. First, the continuous paper 35 having a seam set in the paper supply section 33 has the position of the seam detected by a seam detector 46, and then is conveyed to the printing section 31 using a guide roller or the like. This seam detection information 51 is notified to the control unit 32, and further based on this information, the control unit 32
Blank page information 52 is provided to 1. Based on this blank page information 52, the printing unit 31 stops printing the portion of the paper having the seam area.

At the same time, the control section 32 sends seam notification information 53 to the paper processing section 34 . The content of this seam notification information 53 is determined based on the seam detection position in the paper supply unit 33 by the paper processing unit 3.
Since the distance to the burst roller 37 of No. 4 is known in advance, the seam notification information 53 is sent to the paper processing section 34 when a predetermined sheet is printed from the seam detection position in the paper supply section 33. Based on this seam notification information 53, the rotating shaft 44 that operates the opening/closing plate 42 is rotated to store the unnecessary paper 45 in the unnecessary paper container 43.

In this way, unnecessary sheets without printing can be automatically selected and removed without stopping the apparatus, which eliminates the need for complicated work and has the effect of improving the operating rate of the apparatus.

〔Effect of the invention〕

As described above, according to the printing device of the present invention, unnecessary paper that has not been printed can be automatically sorted and removed without stopping the device, making the sorting work easier and improving the operating rate of the device. There is.

[Brief explanation of drawings]

1 is a block diagram of a printing device of the present invention; FIG. 2 is a schematic diagram showing the structure of a paper processing section of the printing device of the present invention; FIG. 3 is a schematic diagram showing the main parts of FIG. 2; The figure is a schematic diagram showing a general printing device, and FIG. 5 is a plan view showing continuous paper. In the figure, 31 is a printing section, 32 is a control section, 33 is a paper supply section, and 34 is a printing section.
is the paper processing unit, 35 is continuous paper, 36.37, 40.4
1 is a transport roller, 38 is a burst roller, 39 is a paper stacker, 42 is an opening/closing plate, 43 is an unnecessary paper container, 44
is the rotation axis, 45 is paper that does not require printing, 46 is a detector, 51 is seam detection information, 52 is blank page information, 53 is seam notification information, B is an arrow indicating the direction of paper movement, and C is the movement direction of the rotation axis The arrow D indicates the tip of the opening/closing plate. Character print lryu fuyu 2]
Sword figure 3 general t place "J 喀 1 master tree 1 Rokuro figure 4

Claims (1)

[Claims] Means for detecting a seam in continuous paper (35) having a seam (
46) has a function of not printing on the paper (45) with a seam based on the seam detection information (51), and a paper processing unit (46) that cuts the printed continuous paper (35) into predetermined dimensions.
34), an unnecessary paper storage container (45) for storing seamed non-printing paper (45) at the bottom of the paper passage area of the paper processing section (34);
43), and the seam detection information (51) is placed on the unnecessary paper container (43).
), the opening/closing plate (42) is activated by the seam detection information (51).
A printing apparatus characterized in that cut unnecessary paper sheets (45) are guided to and stored in an unnecessary paper storage container (43).