JPS59163246A - Partitioning paper feeding device - Google Patents

Abstract

PURPOSE:To facilitate the discrimination of partitioning part of copy papers loaded on a loading deck by permitting to convey the partitioning paper, different from the copy paper in the quality thereof, through an exclusive conveying route for the partioning paper, which is provided separately from a copy paper coveying route. CONSTITUTION:When a predetermined number of sheet of copy papers are loaded onto the loading deck 31, the partitioning paper P' is supplied from the partitioning paper feeding device 14 and is introduced from an entrance for the partitioning paper at the side of the loading device 16. The partitioning paper P' is passed through the conveying route for the partitioning paper, which is the different route from the conveying route for the copy paper, by conveying rollers 38, 39, is put on the uppermost stage copy paper P, being loaded on the loading deck, by a partitioning paper discharging roller 40, is received by a cushion 41 and is aligned by a paper aligning device 37 through with the copy paper P.

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, when a large number of transfer papers produced by a laser beam printer are sequentially stacked, partition sheets can be sequentially inserted into appropriate positions of the stacked large number of transfer papers. The present invention relates to a paper feeding device for dividing sheets.

When a large number of transfer papers derived from a radar beam printer are sequentially stacked on a stacking device, it is necessary to sort the large number of transfer papers by a predetermined number of sheets, or by type of group of transfer papers. Conventionally, for example, markings for classification were attached to the edges of the transfer paper, or when the above-mentioned printer has two types of paper feeders, one paper feeder was used to transfer the transfer paper set to another paper feeder. A partitioning method has been used, such as setting a transfer sheet in a different color from the transfer sheet in advance and using that colored transfer paper as a partition υ.

However, in the case of any of the above partitioning means, transfer sheets are used as partitions, so transfer papers of the same shape and quality are loaded on the stacking device, and the user can check the color of the sides of the transfer paper. The disadvantage is that it is difficult to determine the presence or absence of a partition using the difference or landmark.

In order to eliminate this drawback, if the printing device has two types of paper feeders, it is necessary to set paper of a different quality than the transfer paper, such as thick paper, in advance in one of the paper feeders that will hold the partition paper, and Is it convenient to be able to insert the paper between the sheets of transfer paper that you want to separate?Due to the structure of the transfer paper transport path in the printing device, the paper that can pass through this path may differ in color, thickness, size, etc. Limitation 9: If paper made of a material outside the pre-guaranteed tolerance range is attempted to pass through the path, there will be problems such as a jam (paper jam) or damage to the photosensitive drum. That is, it is desired to use a sheet with good 1d1 visibility as a partition sheet, but there is a problem in that conventional printers (printing devices) cannot use these desired sheets.

The present invention has been made to solve this problem, and by providing a transport path dedicated to partition paper, which is separate from the transport path of transfer paper, inside a laser beam printer, it is possible to improve the material of the partition paper. It is an object of the present invention to provide a paper feeding device for nine partition sheets, which allows the use of sheets with high partitioning effects by expanding the limited range of the partitions.

The present invention will be explained in detail below based on embodiments shown in the drawings.

Reference numeral 1 denotes a laser beam printer, and the laser beam printer 1 includes a main paper feeder 2 and an auxiliary paper feeder 3.
, a paper feeding device 14 exclusively for partition 9 paper is arranged. Transfer paper P set in the main paper feeder 2 and auxiliary paper feeder 3
is fed out by the paper feed row 24 or 5, and is conveyed to the register roller 7 via the conveyor belt 6. The register roller 7 moves the transfer paper P in accordance with a command from a microcomputer (not shown).
is sent in the direction of the photosensitive drum 8.

A toner image is formed on the surface of the photosensitive drum 8 by a laser beam t and a developing device (not shown). , the toner image on the north side of the photosensitive drum 8 is transferred.

After the transfer is completed, the transfer paper P is conveyed to the fixing device 11 by the conveyance belt 10, the toner image is fixed by the pressure 8 and heating of the fixing device 11, and the transfer paper P is stacked by the conveying belt 12 and the conveying roller 13. The paper is sent out to the transfer paper entrance on the device side. The partition paper P' in the partition paper feeding device 14 is fed out of the printer 1 by a paper feed roller 15 and heads toward a partition paper entrance on the stacking device side, which will be described below. Reference numeral 16 denotes a transfer paper loading device connected to the laser beam printer 1 shown in FIG. The fixed transfer paper P enters the stacking device 16 via the conveyance path. On the loading device 16 side, the transfer paper P is received by the conveyance roller 17, and the light emitting diode 18. The arrival of the transfer paper P is detected by the population sensor 20 composed of a phototransistor 19. Transfer paper P is a sample.
If it is a print, a sample is sent from a CPU (not shown).
A signal is sent to the solenoid 6 to indicate that the transfer paper immediately in front of the transport roller 21 is a sample print, and the solenoid 22 moves the sample deflector 23, and the transfer paper is ejected to the Sansol tray 24. be done.

A normal transfer paper that is not a sunglass print is moved straight by conveyance rollers 25 and 26 and is guided downward by a horizontal deflector 27. Then, the transfer paper transferred downward is transferred to a discharge roller 28. The paper passes through the paper discharge deflector 29 and the paper discharge roller 30, and is then stacked on the stacking deck 31. The paper out detector 32 is composed of a lamp 33 and a CdS cell 34, and detects the transfer paper stacked on the deck 31 using a light emitting diode 35. This serves as an initialization for counting by the paper discharge sensor constituted by the phototransistor 36. The transfer sheets placed on the stacking deck 31 are stacked while their positions are aligned by the rotation of the paper alignment device 37. Furthermore, loading deck 3
1 gradually descends as the stacked height of the transfer paper increases, and the position at which the transfer paper is discharged from the paper discharge roller 30 is always maintained at a constant height.

Ordinary transfer paper is output onto the stacking deck 31 as described above. Then, when a predetermined number of transfer sheets are stacked on the stacking deck 31, the partition paper P' is supplied from the partition 9 paper feeding device 14 shown in FIG.
It is introduced from the partition paper entrance. This partition paper P' passes through the partition υ paper transport path by transport rollers 38 and 39, and is placed on the uppermost transfer paper P stacked on the stacking deck 31 by a partition paper discharge roller 40. and is received by the cushion 41. At this time, since the partition paper P' comes into contact with the stacked transfer papers P, there is a possibility that the top few sheets of the transfer paper may be misaligned. Therefore, just before the partition paper P' is discharged, the movable paper holding pawl 42 is tilted down to prevent the transfer paper from shifting. The partition paper P' that has left the partition paper discharge roller 40 falls under its own weight, and is aligned in the same way as the transfer paper P by the paper alignment device 37.

At this time, the paper holding claw 42 returns to its original position.

The above-mentioned paper alignment device 37 includes a rotating body 37. has four blades 372 extending in the tangential direction on the circumferential surface thereof and made of a soft material such as rubber, and when this rotating body 371 rotates clockwise in FIG. 2, the movement of each blade 372 The transfer papers P are drawn up to the paper alignment plate 43 and stacked in alignment. The paper alignment plate 43 has a shape that surrounds the paper alignment device 37 so as not to interfere with the rotation of the device. In addition, the paper holding claw 4
2 are located on both sides of the paper alignment plate 43. usually,
This paper holding pawl 42 remains stationary at a fixed position away from the transfer paper P stacked on the deck 31 due to the tension of a spring 45 that is fully fixed at one end to a table 44 in a fixed position, but the partition paper P' When the CPU (not shown) sends a signal indicating that the paper 24 is to be ejected from the paper ejection roller 40 shown in FIG. Pressure 42
is pulled, presses the transfer paper P, and stops.

When the partition paper P' is placed on the deck 31, the solenoid 46 is turned off and the paper holding pawl 42 is restored by the spring 45. Incidentally, reference numeral 48 denotes an entrance sensor composed of a light emitting diode 49 and an I-land duster 50, which can detect that the partition paper P' has entered the stacking device 16. 52 is a light emitting diode, and 53 is a phototransistor.

FIG. 6 shows another embodiment of the stacking device 16' for stacking the partition paper P' on the stacking deck 31, and the conveyance process of the transfer paper P' is the same as in the previous embodiment. That is,
The partition paper P', which has traveled straight along the partition paper conveyance path in the stacking device 16', is pinched from above and below by the partition paper moving device 56 when its tip is slightly peeking out from the partition paper discharge rollers 54 and 55, and then the partition paper P' is sandwiched between the partition paper moving device 56 from above and below. While being supported by the tension between the paper ejection roller 55 and the partition paper moving device 56,
It heads toward the partition paper reversing roller 57. This reversing roller 57
After arriving, it is further held in the air by the partition paper ejection roller 55 and the partition paper reversing roller 57, and after the output of the transfer paper is completed for one batch, it is separated from the partition paper ejection roller 55 and transferred to the partition paper reversing roller. 57 and placed on the deck.

Contact between the partition paper P' and the transfer paper P also occurs during this time, but
Since this contact force is applied to one side of the paper alignment device 37, the transfer paper P' will not be misaligned.

Therefore, the cushion 41 and paper holding claw 4 shown in FIG.
2 is not necessary.

In each of the above embodiments, the loading device 16°16'
A conveyance path for thick partition paper is installed inside the printer, and the transfer paper conveyance path inside the laser beam printer is directly connected to this conveyance path, and the transfer paper printed by the printer is loaded through the above conveyance path. In the case of single-sided printing, the face-up transfer paper is sent on top of the stacked face-down transfer paper. Therefore, if the address, title, etc. of the take printed on the transfer paper stacked below are printed on the face-up transfer paper, it is possible to print the address and title of the take printed on the transfer paper stacked below. This also has the effect of making sorting more convenient.

As described above, the present invention uses a laser beam 0 printer that is provided with a partition paper thickness transport path that is separate from the transfer paper transport path. It is possible to convey different types of partition paper, such as thick layered colored paper, etc., thereby making it easier to identify the partition part of the stacked transfer paper in the stacking device. There are practical benefits such as the fact that the partition paper can be used as a partition paper in a binder in addition to airing.

[Brief explanation of the drawing]

Drawings are welcome! Embodiments of the present invention are shown in which Fig. 1 is a schematic diagram of a laser beam printer, Fig. 2 is a schematic diagram of a loading device, Fig. 3 is an enlarged view of the main part thereof, and Fig. 4 is a partial side view of the same as above. , FIG. 5 is an explanatory diagram of a four-dimensional paper presser structure, and FIG. 6 is a schematic diagram of a loading device showing another embodiment of the present invention. 1: Laser beam printer, 2: Main paper feeder, 3: Auxiliary paper feeder, 4.5: Paper feed roller, 6. Conveyor belt-7: register roller,
8: Photosensitive drum, 9: Transfer charger, 10: Conveyor belt, 11: Fixing device, 12 Conveyor belt, 1
3: Conveyance roller, 14: Partition υ paper thickness board device, 15: Paper feed roller, 16.16 Shishi transfer paper loading device, 17゛Conveyance roller, 18: Light emitting diode, 19
: Phototransistor, 20: Entrance sensor, 21: Conveyance roller, 22: Solenoid, 23: Sample deflector, 24: Sample tray, 25.26: Conveyance roller, 27: Horizontal deflector, 28: Conveyance roller, 29: Paper ejection deflector , 3o: paper ejection roller, 31: loading deck,
32: paper out detector, 33: lamp, 3
4: CdS cell, 35: Light emitting diode, 36: Phototransistor, 37: Paper alignment device, 38. 39: Conveyance roller, 40: Paper discharge roller, 41: Cushion, 42: Paper presser claw, 43: Paper alignment plate, 44: stand,
45 spring, 46: solenoid, 47
: Rotation axis, 48: Entrance sensor, 49: Light emitting diode, 50: Phototransistor, 52: Light emitting diode, 53 Phototransistor, 54, 55: Paper ejection roller, 56: Paper moving device, 57: Paper reversal roller. Figure 1-2 [ Figure 4

Claims (1)

[Claims] 1. A partition paper feeding device for a laser beam printer, characterized in that a partition paper feeding path is provided, which is separate from the transfer paper transport path.