JPS606828Y2 - copying device - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a copying apparatus using a novel method.

Copying devices use the typical Carlson method (a light image from a copy document is projected onto a photoreceptor that is uniformly charged in a dark state to create an electrostatic latent image, and toner is attached to this to make it visible. This method is based on the principle of transfer and fixing onto plain paper) or other methods, but in any case, in conventional copying devices, the optical The system is composed of lenses and reflectors.

Therefore, the optical system has a mechanically determined positional relationship, which causes various inconveniences, such as the need to place copy paper (such as a book) face down on the imaging section facing upward.

The present invention eliminates the above-mentioned inconvenience by increasing the degree of freedom in the positional relationship by configuring the optical system with optical fibers, and also enables the imaging section to more reliably scan the copy paper. The purpose of the present invention is to provide an improved copying device.

An embodiment of the present invention will be described below with reference to the drawings.

According to the present invention, as shown in FIG. 1, the copying mechanism main body 1 and the imaging head 2 are constructed separately, and the two are connected by an optical fiber cable 3, so that the imaging head 2 can be moved freely. The copy base paper 5 can be scanned in any direction.

In this figure, 19 is a copy outlet, and 61 is a power cord.

2 is a cross-sectional view showing the interior of the copying mechanism main body 1 shown in FIG. 1 in detail, FIG. 3 and FIG. FIG. 2 is a schematic diagram for explaining the operation of the embodiment in an easy-to-understand manner in principle.

As shown in these figures, in the imaging head 2, the ends of the imaging optical fibers 31 are arranged in one row, and the synchronous motor 2
A roller 21 driven by a roller 2 moves in a direction perpendicular to the arrangement direction thereof and scans the copy base paper 5.

The photosensitive drum 11 is rotated by the drive motor 12 in accordance with this scanning.

The ends of the optical fibers 31 are arranged in a line close to the circumferential surface of the photosensitive drum 11, and as the photosensitive drum 11 rotates as it scans the copy base paper 5, the copy base paper 5
A light image of 1 is projected onto the surface of the photosensitive drum 11 (see FIG. 5).

Light for illuminating the copy paper 5 is provided through an illumination optical fiber 32.
Since the light source 18 is housed within the copying mechanism main body 1, the imaging head 2 is lightweight and compact (see FIGS. 2 and 5).

When the switch 23 provided on the frame 4 of the imaging head 2 is pressed, a signal is sent to the controller 17 through the conductive cable 33, the light source 18 is turned on, and the synchronous motor 22 and the drive motor 12 of the photosensitive drum 11 are rotated to start copying. When the switch 23 is released, the motors 12, 22
stops and the light source 18 also turns off.

As shown in FIG. 2, plain paper 13 for copying is fed into a roll with the roll deformation removed and cut by the cutter 14, so that the copy base paper 5 has a considerable length. Even when the image pickup head 2 moves over a long distance for long distances (for example, recorded charts), seamless copies can be continuously obtained.

In FIG. 2, 15 is a magnetic head for uniformly charging the photosensitive drum 11, and 16 is a toner box.

Further, in FIG. 5, 6 indicates a power source.

According to this invention, as shown in FIG. 3, the imaging head 2 has rotatable rollers 42 and 43 attached to a frame 4 having a handle 41, and a holding hole 61 formed therein. The guide frame 44 is held elastically.

62 is a coil spring.

Instead of the holding hole 61, a downwardly opened recess may be formed in the frame 4, and the guide frame 44 may be elastically held in this recess.

This guide frame 44 has an elongated guide hole 45.

The imaging and illumination optical fibers 31 and 32 are supported by the case 24, as shown in FIG. 4, and their ends are arranged in a row and protrude downward from the bottom surface of the case 24.

A synchronous motor 22 is provided in this case (optical fiber support) 24 and drives four rollers 21 attached to this case 24.

The shaft 21a of this roller 21 is inserted into the guide hole 45 of the guide frame 44.

When the roller 21 rotates, the case 24 runs on the copy base paper 5 because the roller 21 is in contact with the surface of the copy base paper 5.

However, its running direction and range are regulated by the guide hole 45.

Therefore, the entire frame 4 is manually moved to follow the movement of the case 24 so that the case 24 does not reach the end of the guide hole 45 and stop moving.

By doing so, the end of the imaging optical fiber 31 can continuously scan the copy paper 5 at a constant speed controlled by the motor 22.

Note that the case 24 is provided with a pointer 25, which projects outward from the guide hole 45 to indicate the position of the imaging optical fiber array, that is, the imaging position.

In this way, the guide frame 44 is connected to the holding hole 61 of the frame 4.
Since the center shaft 21a of the roller 21 is engaged with the guide hole 45 of the guide frame 44, the roller 21 is always in contact with the copying paper with a constant pressure, and the imaging light is The distance between the end of the fiber 31 and the surface of the copy base paper 5 is also kept constant.

Therefore, even if there are variations in strength or individual differences in the force with which the handle 41 is pressed, uniform copying is possible.

Further, if the original copy paper 5 is a book or the like and needs to be strongly pressed, the frame 4 is manually moved in accordance with the movement of the case 24 while pressing the handle 41 strongly by hand.

At this time, since the guide hole 45 of the guide frame 44 is relatively long, there is considerable margin for manual operation of the frame 4 to follow the movement of the case 24, and the pointer 25
The operation is easy because the frame 4 can be moved manually while monitoring to ensure that the frame 4 does not reach the end of the guide hole 45.

The shape and size of the imaging head are not limited to the illustrated example.

It would also be possible to attach a mechanism to the case 24 to adjust the position of the lower end of the optical fiber relative to the base paper.

Durability is improved by adding a mechanism that can also adjust the elasticity (spring force) that maintains the elasticity.

As described above in the embodiments, according to the present invention,
By eliminating the limitations of conventional copying devices and freely scanning the imaging head, any type of copy base paper can be easily and easily copied, and the distance between the end of the imaging optical fiber and the copy base paper can be easily copied. Since it is kept constant, uniform copies can be obtained and the operation is easy.

[Brief Description of the Drawings] Fig. 1 is a perspective view showing the appearance of an embodiment of the present invention, Fig. 2 is a sectional view of Fig. 1, and Figs.
A fifth partial perspective view showing each part of the imaging head 2 shown in the figure.
The figure is a schematic diagram showing the principle of the above embodiment. 1... Copying mechanism main body, 11... Photosensitive drum, 12... Drive motor, 13...
Plain paper, 14...Cutter, 16...
Toner box, 17...Controller, 18...
...Light source, 2...Imaging head, 21...
...Scanning roller, 22...Synchronous motor, 23
...Switch, 24 ...Case, 31
... Optical fiber for imaging, 32 ... Optical fiber for illumination, 33 ... Conductive cable, 4 ...
...Frame, 41...Handle, 44...
... Guide frame, 45 ... Guide hole, 61
...Holding hole, 62...Coil spring.

Claims (1)

[Scope of utility model registration request] an imaging head configured to arrange the ends of imaging optical fibers in a straight line and scan the copying paper in a direction perpendicular to the arrangement direction; and an imaging head arranged in the same relationship as the ends of the optical fiber array. In an apparatus that performs copying from a main body of a copying mechanism that scans the other end relative to a photoreceptor in accordance with the scanning, the imaging head is connected to a rotatable roller having a handle. a frame capable of running on the copying surface of a copy base paper; a guide member elastically supported by the frame; and a support for supporting an end of the imaging optical fiber array guided by the guide member; The roller includes a motor provided on the support, and a roller provided on the support and in contact with the copy surface of the copy base paper and driven by the motor to cause the support to run over the copy surface of the copy base paper. , the handle is portable and can be moved by hand, the support moves against the copying paper by rotation of the roller driven by the motor, and the support always moves along the guide member. A copying apparatus characterized in that the image pickup head is configured such that the entire image pickup head can be moved by holding the handle by hand so that the image pickup head is within a range.