JPS602562A - Recording paper discharging device - Google Patents

Abstract

PURPOSE:To discharge odd number-th recording papers into the one discharge tray and even number-th papers into the other discharge tray with the aid of a recording paper discharge direction switching means mounted to a stage followed by the discharge tray. CONSTITUTION:When a plunger solenoid 42 is in an inoperative condition, a switching lever 41 is forced into coincidence with a recording paper guide 35 at an upper stage. In this condition, a recording paper, exfoliated from an ink donor sheet 11, passes, in order, through a recording paper guide 45, a switching lever 41, and a recording paper guide 35, enters between a discharge roller 33 and a pinch roller 34, and is discharged to an upper discharge tray 31. With a plunger 43 sucked through operation of a plunger solenoid 42, the switching lever 41 is brought into coincidence with a recording paper guide at a lower stage, a recording paper, exfoliated from a lower ink donor sheet 11, is discharged to a discharge tray 32 at a lower stage.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a recording paper ejection device in a copying machine.

[Prior art]

Some copying machines use an image sensor to read image information on a document, and perform thermal transfer recording on recording paper using an ink donor sheet.

FIG. 1 shows an example of such a conventional copying machine.

A platen glass 2 is provided at the top of the main body 1 of this copying machine. A platen cover 3 is provided above the platen glass 2 so as to be openable and closable.

A scanner unit 4 is provided below the platen glass 2 so as to be movable in the directions of arrows A and B while being guided by a guide rod 5. The scanner unit 4 includes a lamp 6 and a mirror 7.
．． 8, a lens 9, an image sensor 10, and the like. A long ink donor sheet 11 wound around a supply roll 12 is provided at a predetermined location within the main body 1 of the copying machine. The ink donor sheet 11 fed out from the supply roll 12 is placed between a guide roll 13, a thermal head 14 and a back roll 15 that is in rolling contact with this, and between a back roll 15 and a drive roll 16 that is in rolling contact with this.
After passing through the gap and the guide roll 17,
It is adapted to be wound up on a take-up roll 18.

When making a copy using this copying machine, first a document (not shown) is placed on the platen glass 2 and pressed down with the platen cover 3. After this, when a start button (not shown) is pressed, the scanner unit 4 begins to move in the direction of the arrow. At this time, the lamp 6 is turned on and illuminates the document, and the reflected light passes through the mirror 7.8 and the lens 9, respectively, and forms an image on the image sensor 10, where it is photoelectrically converted. The image signal output from the image sensor 10 is supplied to a control section (not shown), and after signal processing such as binarization processing is performed, a predetermined print signal is created. When the scanner unit 4 reaches the movement limit position in the direction of the arrow, it then moves in the direction of arrow B, returns to the movement limit position in the same direction, and stops.

On the other hand, recording paper (not shown) stored in a recording paper cassette 21 is sent out by a feed roll 22 and passes between a drive roll 23 and a pinch roll 24 that is in rolling contact with the drive roll 23 . Thereafter, the recording paper is overlapped with the ink donor sheet 11 in front of the thermal head 14. When the dry roll 16 starts rotating at a predetermined timing,
The running of the ink donor sheet 11 is started. As a result, the recording paper is overlapped with the ink donor sheet 11 and passes between the full head 14 and the back roll 15. At this time, the control section outputs a thermal head drive signal based on a predetermined print signal, whereby the thermal head 14 is driven and thermal transfer recording of image information is performed.

After the recording is completed, the recording paper is peeled off from the ink donor sheet 11 and discharged to the discharge tray 25.

However, in such a copying machine, if the image information of the original is read only when the scanner unit 4 moves in the direction of the arrow, the copying time will become longer when a plurality of copies of one original are made in succession. In this case, even if the movement of the scanner unit 4 in the direction of arrow B is increased, there is a limit to the reduction in copying time.

Therefore, in such conventional copying machines, the following method is adopted in order to shorten the copying time.

(2) When the scanner unit 4 moves forward and backward, the image information of the original is read and recorded on the recording paper each time.

■Move the scanner unit 4 back and forth only once to copy the second sheet, and store the image information for each page of the scanned original in memory, and based on this, copy the second and subsequent sheets. A copy will be made.

However, in the former method, the scanning directions of the scanner unit 4 when moving forward and backward are opposite to each other, so the image information of the recording paper ejected to the ejection tray 25 is different from that of the odd-numbered sheet and the even-numbered sheet. The images were alternately reversed, making post-processing troublesome. On the other hand, in the latter method, the output tray 25
It is possible to make all the image information on the recording paper ejected in the same direction, but since the image information for one page of the original is stored, the memory capacity becomes considerably large and the cost increases. Put it away.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and has an object to shorten copying time without using a large capacity memory, and to easily perform post-processing of recording paper ejected to an ejection tray. The purpose of the present invention is to provide a recording paper ejecting device that can perform the following functions.

[Structure of the invention]

The present invention includes two ejection trays and recording paper ejection direction switching means provided in front of these ejection trays,
By controlling the switching operation of the switching means, odd-numbered sheets of recording paper are discharged to one discharge tray and even-numbered sheets are discharged to the other discharge tray.

〔Example〕

The present invention will be described in detail with reference to Examples below.

FIG. 2, in which the same parts as in FIG. 1 are given the same reference numerals, shows the main parts of a copying machine to which an embodiment of the present invention is applied.

In this copying machine, discharge trays 31 and 32 are provided at two predetermined locations on the outside of the main body 1 in two stages, upper and lower. In the copying machine main body 1, in front of the upper discharge tray 31, there is a discharge roll 33 and a vinyl roll 3 that is in contact with the discharge roll 33.
4 are provided.

A recording paper guide 35 is provided in front of these rolls 33 and 34.
is provided. Further, in the main body 1 of the copying machine, a discharge port 36 and a pinch roll 37 are provided in front of the lower discharge tray 32. A recording paper guide 38 is provided in front of these rolls 36 and 37. A recording paper ejection direction switching mechanism 39 is provided in front of the two recording paper guides 35 and 38. The switching mechanism 39 includes a substantially L-shaped switching lever 41 rotatably attached to a fixed pin 40 . Switching lever 4
1 is rotatably connected to a plunger 43 of a plunger solenoid 42 via a pin 44. A recording paper guide 45 is provided between the switching lever 41 and the back roll 15.

In this copying machine, when the plunger solenoid 42 is inactive, the switching lever 41 is aligned with the upper recording paper guide 35, as shown by the solid line in FIG. Therefore, in this state, the recording paper (not shown) peeled off from the ink donor sheet 11 is moved by the recording paper guide 45,
The paper passes through the switching lever 41 and the recording paper guide 35, enters between the ejection roll 33 and the pinch roll 34, and is ejected to the upper ejection tray 31. On the other hand, when the plunger solenoid 42 operates and sucks the plunger 43, the switching lever 41 moves to 2 in FIG.
It is aligned with the lower recording paper guide 38 as shown by the dotted chain line. Therefore, in this state, the ink donor sheet 11
The recording paper peeled off passes through the recording paper guide 45, the switching lever 41, and the recording paper guide 38, enters between the ejection roll 36 and the pinch roll 37, and is ejected to the lower ejection tray 32. Become.

Therefore, when making multiple copies of a single document in succession with this copier, the image information of the document is read and recorded on recording paper each time the scanner unit moves forward and backward, and The operation of the plunger solenoid 42 is controlled by the control section according to the running state of the recording paper. The plunger solenoid 42 is brought into a non-operating state for odd-numbered recording sheets, and is activated for even-numbered recording sheets. As a result, the odd-numbered sheets of recording paper are ejected to the two-stage (Jl output tray 31) with their image information in the same direction, and the even-numbered sheets of recording paper are ejected to the lower ejection tray 32 with their image information in the same direction. Therefore, post-processing of the recording paper can be easily performed.

When this copying machine copies a plurality of originals one copy at a time, the plunger solenoid 42 is kept inactive. Therefore, in this case, all the recording sheets are ejected to the upper ejection tray 31 with their image information oriented in the same direction.

In the above embodiments, the present invention is applied to a thermal transfer recording type copying machine, but it goes without saying that it can also be applied to a type of copying machine that uses the principle of xerography.

〔Effect of the invention〕

As explained above, according to the present invention, odd-numbered recording sheets and even-numbered recording sheets are each discharged to separate output trays, which facilitates post-processing and improves office work. be able to. Furthermore, since a large capacity memory is not required, costs can be reduced.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram showing an example of a conventional copying machine. FIG. 2 is a schematic configuration diagram, not showing the main parts, of a copying machine to which an embodiment of the present invention is applied. 1...Copy machine body, 2...Platen glass, 4...Scanner unit, 11...Ink donor sheet, 14...Mulle head, 21... IA paper cassette, 31.32... Ejection tray, 39... Recording paper ejection direction switching mechanism, 41...
Switching lever. Representative of Fuji Xerox Co., Ltd. Patent Attorney Jlj AjlI

Claims (1)

[Claims] Two ejection trays provided after a recording section that records on recording paper, a switching means provided between these ejection trays and the recording section for switching the ejection direction of the recording paper, and a switching operation of the switching means. 1. A recording paper ejecting device comprising: a control means for controlling.