JPS5852747Y2 - Reciprocating scanning copying device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a reciprocating scanning type copying apparatus, and more particularly to a copying apparatus in which the images of ejected copies are aligned in the same direction.

The inventor fixed the document, scanned the document in sub-scan mode when the optical system moved forward and backward, scanned the document in main scan mode with an image sensor, sent the image signal to the recording device, and then scanned the document in sub-scan mode using the optical system. A scanning method for a copying apparatus has been proposed in which the main scanning direction during image recording by the recording apparatus is switched according to the direction.

By the way, in a reciprocating scanning type copying apparatus that implements this method, the direction of the copied image is reversed sheet by sheet with respect to the copy ejection direction due to the sub-scanning direction of the optical system in the document reading device.

Therefore, if all the discharged recording sheets are received in the same discharge tray as in the past, recording sheets with opposite image orientations are alternately stocked as shown in FIG.

Therefore, the orientation of every other sheet must be changed and rearranged later, which is time consuming and inconvenient.

This idea was made in view of the above points, and in the above-mentioned reciprocating scanning type copying machine, by switching the paper ejection tray according to the sub-scanning direction of the optical system when reading additional documents, it is possible to As shown in the figure, two paper ejection trays are stocked with recording paper with the images aligned in the same direction.

An embodiment of this invention will be described below with reference to FIGS. 3 and 4.

FIG. 3 is a configuration diagram showing an embodiment of this invention, in which 1 is an original, 2 is a contact glass, 3 is a light source for illuminating the original, and 4 is a structural diagram showing an embodiment of this invention.
is a reflecting mirror that is moved along the original 1 together with the light source 3;
Reference numeral 5 denotes a reflection mirror that moves in the same direction at a speed of 1/2 in accordance with the movement of the reflection mirror 4, 6 a condenser lens, 7 an image sensor for reading an original using, for example, a CCD, and 8 a light source 3 and a reflection mirror. It is an amplifier for image signals that are sub-scanned by an optical system such as No. 4.5, and main-scanned and read by an image sensor 7, and these constitute a document reading device.

On the other hand, on the recording device side, 9 is a one-line cathode ray tube for exposure (hereinafter abbreviated as rcRTJ), 10 is a photosensitive drum, 11 is a charger, 12 is a developer, 13 is a transfer charger, and 14 is a recording paper. A supply cassette, 15 an upper paper discharge tray, 16 a lower paper discharge tray, 17 a paper discharge path switching device, 18 recording paper, and 19 a cleaning roller.

In this embodiment configured in this way, the original 1 placed on the contact glass 2 is sub-scanned alternately in the directions of arrows A and B by an optical system including a light source 3 and reflective mirrors 4 and 5. While being scanned, main scanning is performed by the image sensor 7 and read as an image signal.

This image signal is applied to the CRT 9 via the amplifier 8.

In the CRT 9, an electron beam whose brightness is modulated by this image signal is deflected in the main scanning direction by a main scanning controller (not shown), and causes the fluorescent surface to emit light, thereby exposing the photoreceptor drum 10.

The photoreceptor drum 10 rotates in the direction of arrow P, and the charger 11 . Charging, exposure, and development processes are performed at the positions of the CRT 9 and the developing device 12, respectively, and the transfer charger 13
leading to.

When passing through this transfer charger 13, the recording paper 18 is fed one by one from the recording paper supply cassette 14, and the transferred recording paper 18 is discharged, but at this time, the original 1 is sub-scanned by the optical system. The paper ejection path switching device 17
The paper discharge path is switched by , and the paper is alternately discharged to the upper paper discharge tray 15 or the lower paper discharge tray 16.

FIG. 4 shows an example of the mechanism of the paper discharge path switching device 17, where 20 is an L-shaped switching lever, and 21 is a cam that rotates by 1800 degrees in conjunction with the forward and backward movements of the optical system.

In the reciprocating scanning type copying apparatus shown in Fig. 3, the main scanning direction of the CRT 9 is switched according to the sub-scanning direction of the original by the optical system, and a regular copy image is always produced regardless of the sub-scanning direction of the optical system. At that time, the cam 21 is rotated by 180° according to the sub-scanning direction of the optical system.
The switching lever 20, which one arm contacts, is rotated about the shaft 22 so as to switch between the position shown by the solid line and the position shown by the broken line.

As a result, the paper discharge path is switched between the direction indicated by the solid line arrow and the direction indicated by the broken line arrow, and the recording paper 18 is alternately discharged to the upper paper discharge tray 15 and the lower paper discharge tray 16.

Therefore, each of the paper discharge trays 15 and 16 is stocked with recording paper whose images are oriented in the same direction as shown in FIG. 2, respectively.

Incidentally, the rotation of the cam 210 can be easily performed using a rack, a pinion, etc. that are linked to the moving mechanism of the optical system.

As explained above, according to this invention, since the copied images produced by the reciprocating scanning copying device are stocked in two paper output trays with the same orientation, there is no need to rearrange the orientation of the images after copying. Increased handling becomes extremely convenient.

[Brief explanation of drawings]

1 and 2 are perspective explanatory diagrams showing the orientation of images of copies ejected to the paper output tray by conventional and reciprocating scanning type copying apparatuses according to this invention, respectively, and FIG. 3 is a reciprocating image showing an embodiment of this invention. FIG. 4 is a block diagram of the scanning type copying apparatus, and is an enlarged view of the main part showing an example of the paper discharge path switching device. 1...Original, 2...Contact glass, 3...Light source, 4, 5...Reflection mirror, 6...Condensing lens 7... Image sensor, 9... Cathode ray tube (CRT), 10...
... Photosensitive drum, 14 ... Recording paper supply cassette, 15 ... Upper paper output tray, 16 ...
...Lower paper ejection tray, 17... Paper ejection path switching device, 18... Recording paper, 20... Switching lever 21... Cam.

Claims (1)

[Scope of utility model registration request] The document is fixed, and the image sensor scans the document in the main direction while sub-scanning the document when the optical system moves forward and backward, and reads the document.
The read image signal is sent to a recording device, and the main scanning direction of the recording device is switched according to the sub-scanning direction of the document by the optical system, so that a regular copy image is always produced regardless of the sub-scanning direction of the optical system. In the reciprocating scanning type copying apparatus, two paper ejection trays are provided for ejecting the recording paper on which an image has been recorded by the recording device, and the recording paper is ejected according to the sub-scanning direction by the optical system. A reciprocating scanning copying apparatus characterized by being provided with a paper discharge path switching device for switching paper discharge trays.