JPS6019643A - Sheet collection tray device - Google Patents

Abstract

PURPOSE:To make each sheet going to be discharged and accumulated in regular sequence inside a tray true up at least its corresponding rectangular two sides themselves so accurately each other, by making up a crosswise tilt of the tray into such an inclination as setting the sheet conveying reference line side down to a lower position. CONSTITUTION:Sheets P discharged and fropped plumn down to the inside of a tray 4 are naturally slipped down and shifted forward with dead load along a compound inclined plane comprising a front-up tilt of the tray or a rear-down tilt, conversely speaking, and a right-down tilt in a direction A toward a rear side right corner angular part of the tray 4. At a sliding down process in the A direction of these sheets P, first the right side PR of each sheet P collides with the inner surface of a tray right side plate 6 or one side of sheet adjusting squares and receives its positioning regulation. Then, the sheet P'' is slipped down and shifted forward along the said right side plate 6 in a direction B toward a tray rear side plate 5 or the other side adjusting square, and the backside PB of the sheet collides with the inner surface of the tray rear side plate 5 and receives its positioning regulation.

Description

[Detailed Description of the Invention] The present invention relates to an image forming device such as a simple printing machine, and a device that outputs sheets one after another (Cut Sheet!, sheet materials such as paper, cards, thin plates, etc.) The present invention relates to a sheet collection tray apparatus for depositing and receiving output sheets from.

This type of sheet collecting tray device collects each sheet sequentially discharged and accumulated in the tray at least at its corresponding right angle.
It is desirable to have a sheet alignment function for receiving sheets in proper alignment with each other. If the sheet alignment function is provided, for example, if the sheet output device is a copying machine and the sheets discharged and deposited on the collection tray are multiple pages 1
If it is a stack of M+ copy sheets, etc., take out the stack of sheets from the tray, then place it in the batch stipple I.
When performing bulk stapling processing, etc., the sheet bundle taken out from the tray has already aligned each sheet, so it can be immediately processed for bulk stapling, etc., and if the overlapping sheet phases W are uneven. This eliminates the tedious preparatory work of aligning each sheet and improves efficiency. Particularly when there are a large number of sheets, alignment work is time-consuming. In addition, a binding mechanism such as a stapling mechanism and a gluing mechanism for aligned sheet bundles, and other post-processing mechanisms can be added to the sheet I/collection tray device itself to perform bookbinding functions and other post-processing functions. It is also possible to have it equipped.

Conventionally, the following several means systems are known as sheet aligning means in a sheet collection tray.

a. Alignment by Vibration While conveying the sheet into the tray, the tray is slightly vibrated, and the vibration moves the sheet closer to the two right-angled side plates of the tray that serve as sheet alignment rulers for alignment.

However, the addition of a vibration mechanism that vibrates the tray complicates the device, increases its size, and increases cost.

It is difficult to set the appropriate vibration amplitude and frequency. There are many problems such as the generation of abnormal noise due to vibration and the adverse effects of vibration propagation to the sheet output device side (for example, when the sheet output device is an image forming device, the quality of the formed image deteriorates due to the influence of vibration). It is inappropriate as a sheet collection tray device for an image forming apparatus such as a machine.

b. Drive bell! Aligning sheet by ・As an alignment ruler, one side plate of the right-angled 2 side plates of To1/A is made into a rotating belt, and one of the two right-angled sides of the sheet is brought into contact with the rotating bell i・side plate, and the sea) Align it by moving it toward the other side plate.

However, with the addition of a rotating belt mechanism, the device becomes complicated and
There are problems such as an increase in size and cost, difficulty in setting an appropriate opening value that takes into account the friction coefficient of the belt, and deterioration of the belt over time.

C. Adjustment rubber seams using paddles] - Remove flexible blade pieces made of friction material such as pieces in a radial manner 4
=I Insert the rotating body (paddle) into the tray into the square 111
By bringing a blade into contact with the top surface of the sheet and rotating it, the sheet is moved towards the two right-angled side plates of the sheet alignment ruler to perform alignment.

However, this also has problems, such as the addition of a paddle mechanism that makes the device more complex, larger, and more expensive, and the blades produce a sound of hitting the top of the sheet.

d. Arranging the alignment tray using the inclined tray in an inclined position with respect to the sheet ejection opening of the tray in a front-up or front-down direction, and in a left-down or right-down direction with respect to the lateral direction of the tray, and discharge the sheet into the tray. The sheet is slid down the tray by its own weight due to the tilted position of the tray, and the sheet is moved at a right angle 2 on the sliding side.
Alignment is performed by having two right-angled side plates serving as sheet alignment rulers whose sides are disposed on the sheet sliding side of the tray hold the respective receivers.

Since this alignment method only requires placing the tray in an inclined position at an appropriate angle, it is possible to construct a simple, noiseless, compact, and low-cost sheet collection tray device with a sheet alignment function, making it practical.・It is.

The present invention relates to an improvement of a sheet collecting tray device equipped with a sheet alignment function using a tilted tray system as described in section d.

The sheet collecting tray device will be explained a little more with reference to FIGS. 1 to 6. 1φ1 is a pair of upper and lower sheet guide plates that guide the sheet P output from a sheet output device (not shown) toward the nip portion of the sheet sliding pinch roller portions 2 and 3, which are sheet discharge ports, and 4 is a sheet 1 no. Sea that is sent out from the output pinch roller parts 2 and 3!・It is an inclined sheet collection tray that receives.

C) 1-output pinch rollers 2 and 3 are the lower roller 2 in this example.
is a driving roller, and the upper roller 3 is a driven roller. The individual installation is supported, and the driven roller 3
The lower surfaces of the three driving rollers 2 are placed in pressure contact with the negative surfaces of the three drive rollers 2, respectively. That is, each driven roller 3
The bases of each of these are rotatably supported by bearings on the tip side of a support arm 10 made of a spring plate fixed to the horizontal stay 9 by screws, etc., and the lower surface of the driven roller 3 is supported by the downward biasing force of the spring plate support arm IO. It is pressed against the upper surface of the drive roller 2 at all times.

In this example, the tray 4 is of a front-up type, and the rear end side of the tray is positioned below the pinch roller 2 and the tray 3, which are sheet discharge ports, and is tilted forward toward the front of the sheet discharge port. α (FIG. 2), and with respect to the tray width direction, in this example, the tray is disposed in an attitude of being inclined downward to the right (FIG. 3) when viewed from the front end side of the tray. -1-Arrangement-1 The horizontal inclination angle α and the lateral inclination angle β are, for example, 23 to 26° and 6 to 10°, respectively.
It is set within the range of .

5 and 6 are two right-angled side plates as sheet alignment rulers, which are made by bending the rear side of the tray and the right side, which are the lower inclined side of i-ray 4, upward at right angles to the tray surface, or constructed from separate members. It is.

The output sheet P from the sheet output device facing the sheet passes through the gap passage between the upper and lower guide plates 1 and 1, is caught in the nip portion of the sheet output pinch rollers 2 and 3, and is discharged into the tray 4. Ru.

In this example, sheets of various sizes are discharged from the sheet output device to the tray 4 on one side with the dashed line RR (Figures 1 and 4) near the right side of the tray as the reference line.
This is assumed to be carried out using i-conveyance (sheet right-side reference conveyance).

21b-21c indicate the left and right side plates of the chassis of the device.

Ejecting sheet P to tray 4 and discharging sheet P to tray 4, and discharging sheet P to tray 4
Consistency within the two countries is achieved through the following process.

1) When the sheet P starts to be fed out to the tray 4 side by the pinch rollers 2 and 3, and is fed out a certain length, the fed out sheet portion resists the stiffness of the sheet due to the stiffness. As shown by the solid line in Figure 2, it curves downward and enters the descending state.
Since the tray 4 is tilted downward to the right, the tip side of the downwardly curved sea I-portion, = corner P, is the first I-ray 4.
rl'ij (or already in tray 1/i) 1 touches sheet I-F (ii >). At this time, the sheet approach angle θ to the tray surface is an acute angle.

2) Next, as the sheet P is sent out to the tray 4 side by the pinch rollers 2 and 3, the sheet feeding force is used to move the sheet toward the leading edge side or the front upward slope of the tray 4 along its body surface in the direction of the tray leading edge side. If it slides smoothly and sends P into the tray! Go to i line.

3) And, in either case, the rear end of P is the pinch rollers 2 and 3.
When the sheet P passes through the nip and is cut, the entire sheet P falls into the tray 4 to be discharged (solid line in FIG. 4).

4) The sheet P dropped and discharged into the tray 4 is then)
It slides naturally under its own weight in the direction A (Fig. 4) toward the right corner of the rear side of the tray 4 on the composite slope of the forward slope of the tray, or conversely, the downward slope at the rear and the downward slope to the right. Move down.

5) In the process of sliding down the sheet P in the direction A, in this example, the right side PR of the sheet P first hits the inner surface of the tray right side plate 6, which is one of the sheet alignment square rulers, and is restricted in position. The two-dot chain line in FIG.

6) Next, the sheet P slides down along the right side plate 6 in the direction B toward the tray rear side plate 5, which is the other alignment ruler, until the rear side P of the sheet hits the inner surface of the tray rear side plate 5. Subject to position control (Fig. 3-η dotted chain line BoP state).

? ) In other words, the sheet P discharged into the tray L is finally received by the inner surfaces of the right side plate 6 and the rear side plate 5, which are the alignment rulers, and the right side RR and the rear side P, which are the two right-angled sides on the sliding side F, are at right angles to each other. It is placed in the tray 4 in the positioning state where it is placed in the first position.

In this way, from now on, the sheets that are taken out one after another into I.1/I.4 are naturally aligned based on the inclination of the tray 4, as in the case of (h), and are first ejected into the tray 111 and aligned. The sheets are deposited one after another in a consistent manner.

The present invention is directed to sheet collection 1 and the inclined I-lay method.
The purpose of this system is to standardize alignment conditions and perform stable sheet alignment for all sizes of sheets in the 1/A device. When sheets of various sizes are conveyed by one-sided standard conveyance with the right or left side of the sheet as a reference, the lateral inclination of the tray is such that the sheet 1 general feed reference line side is at a lower level.

In this example, the inclination of the tray 4 in the lateral direction is such that the sheet conveyance reference line R-, R side is lowered.

By doing this, even if the size of the sheets extracted to the tray 4 is different from size to size, the two right-angled sides PR and Ps of the sheet immediately after being discharged and dropped to the tray 4 on the side where the tray slides down.
The distance between the sheet and the two right-angled side plates 6 and 5 as sheet alignment rulers arranged on the sheet sliding side of the tray is always approximately constant, and the sheet slides down the path after being discharged onto the L-ray 4. The alignment completion time is approximately the same for sheets of various sizes, and stable sheet alignment can be achieved.

As mentioned above, the tray 4 is inclined upward in the front with respect to the sheet discharge openings 2 and 3, and is also tilted downward to the right. #IsuL for the drop between the side and the left side of the tray (Figure 3)
On the other hand, the head pressure difference R between the right side of the sheet exit and the right side of the tray on the opposite side is larger. Therefore, the sheets (P) sent out from the sheet discharge ports 2 and 3 to the tray 4 may have weakened stiffness due to high temperature and high humidity environments, or the sheets P may have weak stiffness to begin with. If the sheet P is
Part 1?・When the sheet is fed out by a certain length from 3 to the 1・1/A4 side, the degree of downward curvature of that sheet portion becomes large, and the sheet leading edge left corner P1 side has a head differential pressure of 1 with the tray.
Even if the sheet enters at an acute angle with respect to the 4th surface of the tray because the sheet is relatively small, the head differential pressure #R with respect to the tray is large on the right corner P2 side of the leading edge of the sheet, as shown by the two-dot chain line in Figure 2. It is easy to cause a state in which the tray enters at an obtuse angle θ' or an angle close to 90° with respect to the tray 4 surface as shown in FIG.

In such a case, the leading edge of the sheet in contact with the tray 4 surface does not continue to slide along the front upward tilting surface of the tray 4 in the direction of the tray leading edge, and as a result, the sheet P is reversed. It is discharged into the tray 4.

Inversion of such a sheet '6F +41) Rubble is i
- This problem can also occur in a tray device in which the lay 4 is inclined downward in the front.

Therefore, in this example device, in order to eliminate the sheet reversal discharge trouble caused by the above-mentioned causes, a sheet is placed at the sheet exit section of the sheet discharge port section for the tray, so that the sheet sent out from the sheet exit toward the tray is A member is provided for upwardly warping the side of the sheet corresponding to the lower side of the tray's lateral direction inclination.

In Figures 1 and 3, 11 is a roller provided as the sheet warping member. This roller 11 is the sheet conveying base 1
A snap ring 12-12 (FIG. 5) is placed on the pinch roller drive shaft 8 between the line RR and the sheet discharge pinch rollers 2 and 3 closest to the reference line to restrict the shift movement along the shaft 8. It is fitted so that it can rotate freely around the shaft 8, and its outer diameter is suitably larger than the outer diameter of the drive roller 2 of the pinch rollers 2 and 3. The roller IT may be rotatably attached to the shaft 8 via a bearing.

The side of the sheet corresponding to the lower side of the tray lateral direction inclination of the sheet (P) which is fed out from the sheet outlet of the sheet discharge port to the tray 4, in this example the right side of the sheet, is the roller 11.
It passes over the roller 11 correspondingly. Koro 11 is above,
As shown in the figure, the sheet discharge pin 2 has a suitably larger diameter than the drive roller 2 of the punch roller, so due to the difference in diameter, the left side of the sheet P is
In the process of passing through point 1, the sheet resists the elasticity within the elastic range of the sheet and curves upward as shown by Pc in FIG. 3115, and then passes through the roller 11 portion.

Based on the rib-like effect caused by the upward curvature Pc at the roller 11 portion of the sheet, even if the sheet 1-P is in a state of weakening due to moisture absorption, or is originally weak, the sheet P will still be at the sheet exit. The large downward curvature of the sheet portion when the sheet is fed out a certain length from the sheet to the tray 4 side is alleviated, and the sheet approach angle θ with respect to the tray 4 surface is ensured at an acute angle over the entire length of the sheet leading edge. It is possible to eliminate the above-mentioned sea I/inversion/discharge 111 +- rub.

Fig. 6 shows another example, in which the right corner of the leading end side of the sheet guide plate 1-1 is curved upward to create a warp 1.
'.1', and the warp l-1 of this guide plate gives a warp Pc to the sheet as in the case of the roller 11 described in 1-.

Also, in order to ensure sheet alignment by preventing the sheet from bouncing due to the abutting seayock when the sheet discharged into the inclined tray slides down the slope of the tray and hits the alignment ruler side plate. In addition, it is preferable that the two right-angled side plates 5 and 6 for the sheet alignment ruler have a cushioning material pasted on the inner surface of at least one side plate, or the side plates themselves are made of a cushioning material.

In this example, as described above, the right side PR of the sheet P discharged into the tray 4 and then sliding down the slope of the tray hits the alignment ruler side plate 6- 〃 on the right side of the tray, and its position is regulated (the fourth Figure 2 dotted chain line (P state),
Next, the sheet slides down along the side plate 6 in the direction B of the tray rear side plate 5, which is the other alignment ruler, and the rear side PR of the sheet hits the side plate 5, and is aligned under position control. Since the sheet is moving in the sheet movement mode (P state shown by the three-dot chain line in the same figure), the right side plate 6 of the tray is made of a material with a small coefficient of friction, such as a metal surface or a resin surface, and the rear side plate 5 of the tray is made of a material with a small friction coefficient, such as a metal surface or a resin surface. A cushioning material 5a such as Seagull Suede (trade name), which is a urethane foam sheet, is attached to reduce the shock at the final collision.

In addition, the side edges of the sheet should be parallel to the inner surface of the ruler in order to reduce the impact of contact with the sheet alignment ruler and to prevent bending or crushing of the corner of the sheet due to the corner of the sheet hitting the ruler first. It is desirable that it be in contact with the receiver 1. Therefore, the trailing edge of the sheet sent out from the sheet ejection port into I. In this regard, it is preferable to arrange sheet alignment rulers approximately parallel to the two right-angled sides of the sheet on the sliding down side in the tray, respectively, for receiving and stopping the sheet sides.

In this example, as shown in Figures 1 and 4, the alignment ruler side plate 6 on the right side of the tray that aligns the right side PR of the discharged sheet in the tray is used in the following directions:
That is, one side of the sheet is disposed at an angle γ with respect to the conveyance reference line RR, and the other side plate 5 is disposed at right angles to the side plate 6.

5 In other words, the sheet (P) sent out from the sheet ejection port into the tray 4 has its rear side PR connected to the sheet ejection pinch rollers 2 and 3.
Until the sheet passes through the sheet, the sheet is conveyed in a state in which its right side PR substantially coincides with the sheet one-side conveyance reference line R-H on a plane (
Figure 4 (1-dot chain line 'state'). However, the rear side of the sheet P
When sheet a finishes passing through the pinch rollers 2 and 3 and the trailing side of the sheet falls onto tray 4, tray 4 is tilted at an angle α.
, because the sheet is tilted downward at an angle β to the right, the sheet falls onto the tray while rotating around the left corner P of the leading edge of the sheet, which is already in contact with the tray surface, and thereby falls into the tray 4. At the time of completion, the position of the sheet P in the tray is such that the right side PR of the sheet is inclined by an angle γ with respect to the sheet one side conveyance reference line RH, as shown by the solid line in FIG. The angle γ is actually - the inclination angle α of the tray 4 = 23~26°
, β=6 to lO0, and when the fall distance of the right corner of the rear side of the sheet from the sheet discharge port was 75 mm, it was within 5°. Therefore, in this example, regarding the angle γ, the alignment ruler side plate 6 on the right side of the tray is tilted in advance with respect to the sheet conveyance reference line R-H on one side of the sheet 6, so that the sheet right side PR is parallel to the side plate 6. The entire length was made to be in contact at the same time. Regarding the rear side PB of the sheet, after the right side PR of the sheet is positionally regulated by the side plate 6, the sheet (P) slides down along the side plate 6 in the direction B, thereby coming into contact with the side plate 5 in a parallel state.

Also, the angle formed by the two right-angled side plates 5 and 6 as a sheet alignment ruler is 88 to 89 degrees, which is slightly smaller than setting it to exactly 90 degrees.
It was confirmed that when the setting is set to , the rear side PH of the sheet P does not shift after hitting the side plate 5, and better consistency can be obtained.

FIG. 7 shows a perspective view of an example of a sheet collection tray device installed in a sheet output device, and the device of this example also has a bookbinding function using stapling. Furthermore, the first
The same reference numerals are given to the same components as those of the apparatus explained in FIGS.

20 is the overall code of the sheet collection tray device in the civil engineering example, 40
5 is a sheet output device such as a copying machine, and 50 is a pedestal on which the sheet output device is installed.

The sheet collecting tray device 20 mainly includes a vertical back plate 21a, which includes left and right side plates 21bφ21c, a front protruding arm portion 21d,
A chassis 21 equipped with a shelf 21e, etc., includes a sheet guide plate 1 in FIGS. 1 to 6, a sheet discharge pinch roller 2113, a sheet collection tray device 4, and two right-angled side plates 5 and 5 as sheet alignment rulers. 6 (constructed separately from the tray 4), and a stapling mechanism 13 and the like are assembled.

Sheet collection tray device 20 for sheet output device 40
In the case of this example device, the mounting is done in accordance with the legal procedures. First, the normal discharge sheet tray that is attached to the sheet output port 41 on the left end face plate side of the sheet output device 40 and protrudes outward is removed. Then, remove the fixing screws 52 at the four corners fixing the left end face plate 51 of the pedestal 50 on which the sheet output device 40 is installed, and then insert the fixing screws into the respective vertical holes 23 at the four corners of the lower half of the chassis back plate 21a of the device 20. 52 to align the pedestal left end face plate 51 and the lower half of the chassis back plate 21a of the device 20 with the pedestal main body. In this case, a window formed in the chassis back plate 21a on the tray device 20 side with respect to the sheet output port 41 on the sheet output device 40 side uses the vertically elongated hole 23 to adjust the vertical position of the I/lay device 20 with respect to the sheet output device 40. The holes 22 face each other and the sheet discharge pinch roller 42 on the sheet output device 20 side has one pair.
7. Attach the sheet guide plate pair 1- on the tray device 20 side.
Adjust the position so that the sheet receiving opening side of No. 1 faces directly, and tighten each screw 52. Also, although omitted from the figure, tray device 2
0 has a cable (signal line) that connects the electrical circuit on the device side and the electrical circuit on the sheet output device 40 side, and by inserting the plug at the end of the cable into the outlet on the sheet output device side, the device 20/40 can be restarted. Also connect electrically. This completes the attachment of the tray device 20 to the sheet output stirrup 40.

When the sheet output device 40 is, for example, a copying machine, the number of copies per copy N and the required number of copies M are set using the operation panel of the copying machine and 9 copying is started. First, the first set of copy sheets is copied one after another by the sheet discharge pinch roller 42 on the IJt40 side→
Similarly, the sheet output port 41 → the passage between the guide plate 1-1 on the tray device 20 side → the sheet discharge pinch rollers 2 and 3
It is discharged into the tray 4 along the path shown in FIG. Then, the sheets discharged into the tray 4 are aligned and stacked with each other due to the inclination of the tray 4 and the alignment rulers 5 and 6, as described above. The right corner of the rear side of the alignment stacked sheet protrudes into the space between the staple catch seat 15 and the staple driving head 16 through the opening 14 formed between the alignment rulers 5 and 6. . At the timing when the last copy sheet of the first set is ejected into the tray 4 and the sheet is also aligned, the stapling head 16 is driven down (the drive mechanism is omitted in the figure, the back side of the chassis shelf 21e). As a result, a stapling needle is driven into the right corner of the rear side of the aligned stacked sheets in the tray 4, and a bookbinding process is performed by collectively stapling the aligned stacked sheets. Reference numeral 18 denotes a sheet presser rod member which is driven downwardly to press down the trailing edge of the sheet each time the sheet is discharged into the tray and aligned.

Next, the ray 4 is driven to swing around the spindle 17 into a steeply inclined right-downward posture (second posture) as shown by the two-dot chain line (the swing drive mechanism is omitted from the figure). Tray 4
The bundle of bound sheets inside the tray slides out of the tray from the gap between the right side of the tray and the bottom edge of the sheet alignment ruler 6 on that side [1] and into a storage container (stacker, not shown). automatically excluded.

Next, the tray 4 is again changed to the first posture shown by the solid line, and the second copy sheets are output one after another from the copying machine 40 side and ejected into the tray 4. Sheet alignment, stapling, second tray 4
The sheet bundle is discharged by changing the posture. By repeating this cycle, finally each stapled copy sheet bundle of M portions is automatically discharged to the storage container.

In addition -1- In the criminal case, a pair of upper and lower sheet guide plates L and L
In order to prevent the sheet from flapping between the two guide plates, the passage consisting of the guide plate should preferably have a small gap of about 1 to 2 m+w. In addition, in order to prevent condensation of water vapor generated from sheets passing between the guide plates 1 and 1, and to prevent sheet conveyance problems caused by the dew condensation water, the guide plates 1 and 1 are provided with ventilation holes or wires, as long as the conveyance of the sheet is not hindered. It is preferable to use a shaped member, a mesh member, etc.

The sheet discharge pinch rollers 2 and 3 on the tray device 20 side change their peripheral speeds to that of the sheet discharge pinch roller 42 on the sheet output device 40 side in order to prevent sheets from sagging between the sheet guide plates l and 1. In addition, the nip pressure is set to be weaker than that on the sheet output device 40 side.

Instead of a bookbinding mechanism using staples, a bookbinding mechanism using gluing can also be provided. Any post-processing mechanism for the aligned sheet bundle, such as a perforation mechanism, can be provided.

Sheet guide plates 1, l, 3 on the tray device 20 side, and sheet I/discharge pinch rollers 2@3 are required to be installed if the sheet output device side sheet discharge port can be positioned on one side of the tray 4. There is no need to set it.

It goes without saying that the tray device of the present invention can also be applied to individual i-ray devices in multistage sorters and the like.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the sheet collection tray device, Fig. 2 is a vertical side view, Fig. 3 is a transverse front view, Fig. 4 is an explanatory diagram of the sheet alignment process, and Fig. 5 is a roller as a sheet warping means. A front view of the roller part of the example used, FIG. 6 is a front view of the warped part of the guide plate in an example in which the sheet guide plate is warped as the same means,
FIG. 7 is a perspective view of an example of a sheet collection tray device equipped with a stapling mechanism. 2 and 3 are sheet initial pinch rollers, 4 is a sheet collection tray, and 5 and 6 are sheet alignment rulers. 4 33/! 3-/ ＼ l sq cruel A ＼ 1 X7zX pl>. 〆/' 5 ぢ, A'4...'”°゛

Claims (1)

[Claims] (1) A sheet collection tray arranged in a tilted position with the front up or front up and down to the right or down to the left with respect to the sheet discharge port, and the sheet collection tray that is placed into the tray and placed inside the tray due to the inclination of the tray. A sheet aligning ruler arranged at right angles to each other holds two right-angled sides on the sliding side of the sheet sliding down the tray, and aligns each sheet successively discharged and deposited into the tray into the tray. , and when the sheet loss from the sheet discharge port to the tray is performed by one-sided standard conveyance with the right or left side of the sheet as a reference for sheets of various sizes, the lateral inclination of the I-lay is A sheet collection tray device characterized by being sloped so that the conveyance reference line side is at a lower level.