JPS59207360A - Recording apparatus - Google Patents

Abstract

PURPOSE:To keep recording sheets from overlapping each other by setting in such a manner as to obtain a specified relational expression among each transport path length, transport speed and length of recording sheets discharged at the same time from a plurality of printers adapted to reproduce and record a signal image in response to the same signal. CONSTITUTION:A document image is read by a reader 1 to be converted to an electric signal, and simultaneously the signal is sent to respective printers 21, 22, 23 to be printed on recording sheets. Subsequently, these printed recording sheets are discharged at the same time from the respective printers to a paper discharge device 4. When the leading edge of the recording sheet discharged from the lowermost printer 21 reaches a meeting point A, the trailing edge of the recording sheet discharged from the middle-stage printer 22 has already passed the meeting point. Similarly, at a meeting point B, when the leading edge of the recording sheet discharged from the middle-stage printer 22 reaches the meeting point B, the recording sheet discharged from the uppermost printer 23 has already passed the point B. Thus, recording sheets will not overlap each other

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording apparatus equipped with a paper ejection device assembled from a plurality of printers that receives the same signal and reproduces and records a signal image on a recording sheet.

Conventionally, copying machines, which have been widely used in transportation, direct an original image to a photoreceptor to form an image, develop this image, and transfer it onto copy paper. Only one sheet of copy paper can be obtained for each original scanned, and the copying speed is slow. In order to increase the copying speed (copying efficiency) of this type of copying machine, the driving speed of the machine must be increased. It was virtually impossible to increase the copying speed due to process problems and problems with the mechanical structure.

Therefore, in order to increase the copying efficiency without changing the copying speed of the above-mentioned copying machine, for example, an image of the original illuminated by a fluorescent lamp A shown in FIG. The electrical signal converted by this charge-coupled device C is directly recorded on electrostatic recording paper using a known printer shown in FIG. 2, or it is printed on copy paper using an electrophotographic process that converts the electrical signal into an optical signal. It has been proposed to use a digital copying machine that records on the same day. In this copying machine, since the original image is converted into an electrical signal, this signal is sent to multiple printers P1, P2,
By equipping P3 and distributing it to each printer of a copying machine of the form shown in FIG. 3, it is possible to obtain several sheets of copy paper at the same time. Copying efficiency can be increased without changing the drive speed of the printer, but in this case, each printer has its own paper output trays T7, T2, and T3, so each copy paper ejected from each printer It has to be collected from each tray, which has the disadvantage of poor workability.Furthermore, since a tray is attached to each printer, there are problems such as the inability to combine sorters in this type of copier. Ta.

The present invention was made in order to solve such problems, and a single reader is equipped with a plurality of pre/cous,
Furthermore, to provide a recording device equipped with a paper discharge device that can sequentially transport copy sheets sent from each printer to a predetermined paper discharge tray or sorter without overlapping each other. The purpose is to

The present invention will be explained in detail below based on the embodiment shown in FIGS. 4 and 5.

In FIG. 4, 1 is a leader, and below this leader 1 are three pre/couples 27, 22 of the same structure.
．． 23 are arranged vertically in steps, and paper discharge ports 3I and 32.3g are further provided on the sides of these printers. Reference numeral 4 denotes a paper ejecting device for conveying the recording paper sent out from the paper ejecting ports 3+ and 32.3s of each printer to the paper ejecting tray 5. Each pair of transport rollers 7, 8, 9, 10, and 11 for transporting the B self-recorded paper to the paper discharge tray 5 is installed inside. A indicates the confluence point of the recording paper fed out from the printers 2 at the highest to third tiers and the printer 22 at the middle tier, B indicates the merging point of the recording paper sent out from the printer 22 at the middle tier and the printer 23 at the top tier, and 4 is the bottom printer 2.
, t2 is the length of the recording paper transport path from the paper discharge port 31 of the middle printer 22 to AA, and t2' is the length of the recording paper transport path from the paper discharge port 32 of the middle printer 22 to AA. Paper mouth 3
3 and the length of the recording paper transport path to point B, t1' is the middle printer 2. This shows the length of the recording paper transport path from the paper discharge port 32 to point B.

When the maximum length of recording paper used in this copying machine is t, each mechanism in the paper ejecting device 4 is set so that the relationship 4 1-2 > t 2□' - t2'> t is satisfied. do.

In the copying machine with the above structure, the operation is described. First, the reader 1 reads the original image and converts it into an electrical signal. At the same time, the signal is sent to each printer: 2+, 22, 23, and printed on recording paper using the method described above. printed,
These print recording papers are then simultaneously discharged from each printer to the paper discharge device 4. Because the paper ejecting device 4 has the above-mentioned relationship, when the leading edge of the recording paper ejected from the lowermost printer 21 reaches the confluence A, the middle printer 2. The trailing edge of the recording paper discharged from the recording paper passes through the confluence point A. Similarly, confluence point B
In this case, when the leading edge of the recording paper discharged from the middle printer 22 arrives, the recording paper discharged from the top printer 23 has already passed point B, and the recording papers do not overlap each other. Therefore, they can be arranged and collected on the paper discharge tray 5.

Also, since each recording paper sent out from each printer is transferred as soon as they overlap each other, the sorter 12 is aligned with the paper output device 4 as shown in FIG. can do. In addition, by using a large-capacity alignment slider instead of the noter 12, it is possible to align a large amount of recording paper. At this time, the recording paper conveyance speed υ1 of the paper ejecting device 4 and the recording paper conveyance speed of the printer The relationship of υ2 is that if the view of the recording paper is t, the feeding interval of the printer's recording paper is S, and the number of printers is n, then in the case of continuous printing, if the ty4 relation of The fourth paper overlaps the previous recording paper.

Therefore, it is essential to maintain the above relationship unless the print cycle of the printer is sufficiently long.

In the case of this embodiment, since n-3, υ1≧3×, so that subsequent recording sheets do not overlap even in the case of continuous printing.

Next, conditional expression (1) will be explained. First, since the n printers operate using the same signal, they print almost synchronously. Therefore, assuming that the recording paper is ejected almost simultaneously from each paper ejection port 3+, 32.3s, the paper ejection device will be able to record the records ejected from n printers within one cycle time t when the printers print continuously. Paper must be transported. Therefore, the paper ejection speed of the printer is υ2, the paper length is t,
If the paper spacing is S, then tI-(tIS)/υ2...
・(2) Also, the time t2 required for the paper ejection device to convey n sheets of recording paper is t2 = n・・・・・・・・・
...(3) Therefore, during this period tl〉t, ......
If the relationship (4) exists, the recording paper ejected from the printer can be transported without collapsing with the following recording paper.

Therefore, (Z+S)/υ2〉n×1/υ.

becomes.

As described above, the present invention includes a plurality of printers that receive and receive the same signal and reproduce and record a signal image on a recording sheet, and a paper output that collects each recording paper discharged from the printer or distributes it to a sorter. The above-mentioned paper ejecting device has a distance from the n-th printer's recording paper ejection port to the meeting point with the n+1-th printer's recording paper on the right,
The distance from the recording paper discharge port of the n+1 printer to the merging point was t2, and the length of the recording paper was t. Since the recording apparatus is characterized in that it has a recording paper conveyance path such that the distance L t, -12' l > L, according to the present invention, the paper ejecting device allows the paper to be transported from each printer. The recording sheets ejected at the same time can be transported without overlapping each other, so that the recording sheets sent out from each printer can be aligned and stored in the paper ejection tray, or
This has the effect of reliably distributing paper into the sorter.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a reader, Fig. 2 is an explanatory diagram of a printer, Fig. 3 is a perspective view of a copying machine equipped with a plurality of printers, and Fig. 4 is a paper ejecting device according to an embodiment of the present invention. FIG. 5 is an explanatory view of the assembled copying machine, and is an explanatory view showing another embodiment of the present invention. 1... Reader 28.2□, 23... Printer 3+, 3z, 33... Paper ejection port 4... Paper ejection device 5... Paper ejection tray 6.7.8.9.10. 11... Conveyance roller 12...
・Sorter. Figure 1 n 2nd circle

Claims (1)

[Scope of Claims] 1. A plurality of printers that receive the same signal and reproduce and record the signal image on a recording sheet, and 3. A plurality of printers that reproduce and record a signal image on a recording sheet, and a collection or distribution of the recording sheets discharged from the printers to a sorter. A recording apparatus having a paper ejecting device for discharging paper, where tl is the distance from the recording paper ejection port of the nth printer to the meeting point with the recording paper of the n + 1st printer, and
From the recording paper outlet of the n+1st printer to the junction point 1
1. A recording apparatus characterized in that the recording paper conveyance path is such that 1t, -t21 > t, where t2 is the distance at and t is the length of the recording paper. 2 If the recording paper conveyance speed of each printer is υ2, the recording paper conveyance speed of the paper ejection device is υ1, the paper spacing of the printer's recording paper is 81, and the length of the recording paper is L, °・〉0°t+s”・2. The recording device according to claim 1, wherein υ0 and υ2 are determined so that the following relationship holds true.