JPH02219041A - image forming device - Google Patents

Abstract

PURPOSE:To adjust a device in short time without requiring skills by providing a guide groove which is formed on a plane facing an installation plate for a condensing lens and permits a first pin to be fit in, and a sliding plate which possesses a second pin which fits in the guide groove and adjusting the attaching angle of the condensing lens by shifting the sliding plate. CONSTITUTION:For adjusting the optical axis of the condensing lens 9, first, four screws 50 are slightly loosened, then, a driver 55 is inserted between a bending part on the top or the bottom of the attaching plate 10 and the condensing lens 9, and the positioning of the condensing lens 9 is performed. Then, a screw 53 is slightly loosened, the condensing lens 9 is turned around a first pin 51 as a center by shifting the sliding plate 52 right and left, and the inclination of the condensing lens 9 is adjusted. The screw 53 is driven, the sliding plate 52 is fixed on the attaching plate 10, then the screws 50 are driven and the condensing lens 9 is fixed on the attaching plate 10. Thus, the inclination of the condensing lens 9 is adjusted by sliding and shifting the sliding plate 52, and the adjustment is performed in short time without requiring the skills.

Description

[Detailed Description of the Invention] Industrial Application Field 1 The present invention 1 relates to an image forming apparatus, in particular, it is possible to easily adjust the optical axis of a condensing lens located between an exposure table and a light source. The present invention relates to an image forming apparatus that can perform the following operations.

[Prior Art 1] Generally, an image forming apparatus includes a lens for condensing light between an exposure table and a light source. The inclination of the condensing lens toward the optical axis was determined by loosening the screw for attaching the condensing lens.

[Problem to be Solved by the Invention 1] However, in the conventional image forming apparatus, there is no guide groove for determining the position of the condensing lens, and the work requires skill and time.

The present invention has been made in response to such conventional circumstances, and aims to provide an image forming apparatus that can adjust the inclination of a condensing lens in a short time without requiring any skill. .

1. Means for Solving the Problem] In order to achieve the above object, the present invention provides that the mounting is formed on the pin of l1S1 fixed to the plate and the surface facing the mounting plate of the condensing lens, and the first an id groove into which a pin can be inserted and which extends in one direction on the surface; the mounting member is supported on a plate so as to be movable in a direction substantially perpendicular to the direction in which the id groove extends; a sliding plate having a second pin that fits into the sliding plate;

1 Effect] Thereby, by moving the sliding plate, the condensing lens can be rotated about the first pin, and the inclination of the condensing lens with respect to the optical axis can be adjusted.

[Embodiment 1] An image forming apparatus embodying the present invention will be described below with reference to FIG. 4.

In FIG. 4, reference numeral 1 indicates the main body of the copying machine. At the top of the copying machine main body 1, a document table lath 2 on which a document can be placed, and a cover 3 that covers the document table glass 2 in an openable and closable manner are disposed so as to be movable left and right. Below the document table glass 2 is a halogen lamp 4 which extends in a direction perpendicular to the moving direction of the document table glass 2 and irradiates light onto the document on the document table glass 2. A light source 6 consisting of a reflecting mirror body 5 that reflects toward the glass 2 is provided. When the document table glass 2 is moved from side to side while the light source 6 is emitting light, the entire document is irradiated with light.

Further, an exposure table 7 is disposed in the center of the interior of the copying machine body 1, and between this exposure table 7 and the light source 6, a filter 8 for adjusting the color tone of the copied image and a light collecting device are provided. The lens 9 is mounted and supported by a plate 10, and between the lens 9 and the exposure table 7, a pair of reflection mirrors 11 for adjusting the optical path length and focus are mounted and supported by a plate 12 so that the position can be adjusted. ing. The light that is reflected from the original after being irradiated onto the original passes through a filter 8, a lens 9, and each reflecting mirror 11.
and is guided to the exposure table 7.

Furthermore, a cartridge 14 is provided at the upper part of the interior of the copying machine main body 1.
A cassette 28 for accommodating is removably housed, and a take-up roller 15 is rotatably supported. A long photosensitive and pressure sensitive recording medium carrying a large number of microcapsules containing dye for color copying, that is, a long microcapsule paper 13 is wound around the cartridge 14 .

The microcapsule paper 13 is pulled out from the cartridge 14 by rotation of a plurality of feed rollers 16, and then wound onto a winding roller 15.

During this time, a portion of the microcapsule paper 13 that has passed under the exposure table 7 is exposed to light, and a latent image of the original is formed there.

Below the exposure table 7, a developer paper cassette 18 containing a sheet of developer paper 17 having a certain size is removably attached to the copying machine main body 1; A pressure developing device 19 is disposed between the two. Here, the exposed portion of the microcapsule paper 13 and the color developer #17 are brought into pressure contact, whereby a color image based on the latent image on the microcapsule paper 13 is formed on the color developer paper 17. The color developer paper 17 has a color developer coated on the base material,
A heat-fusible surface O (oil layer) is formed on this color developer, and the base materials include paper with a small heat tt and PET (polyethylene tele 7-ru) with a large heat capacity. Further, the color developer paper cassette 18 is provided with a protrusion 18a for determining the size of the color developer paper 17, and the size of the color developer paper 17 is determined by determining the size of the color developer paper 17 by dividing the size of the protrusion 18a by t. A discrimination device 20 is provided.

A plurality of feed rollers 21 and paper guides 25 are provided between the developer paper cassette 18 and the pressure development device 19 for transporting the developer paper 17 toward the pressure development device 19. A peeling roller 22 for peeling off the color developing paper 17 from the microcapsule paper 13 is provided on the paper feeding side. A sheet heating device 23 for fixing the image formed on the developer paper 17 by heat is disposed on the paper sending side of the peeling roller 22, and the developer paper 17 discharged from the sheet heating device 23 is placed on a tray 24. be accommodated.

When making a color copy using this copying machine, when the start button (not shown) is operated, the document table glass 2 is moved to the right edge, and the left edge of the document is placed opposite the halogen lamp 4 of the light source 6. , the halogen lamp 4 is turned on, and in this state, the document table lath 2 is moved back to the left,
Irradiation of light onto the original is completed.

During this light irradiation, the microcapsule paper 13 is moved toward the winding side on the exposure table 7 at the same speed as the document table lath 2. Therefore, a latent image of the original is formed on the microcapsule paper 13 by the reflected light from the original. The developer paper 17 is transferred from the developer paper 186- to the pressure developing device 19 in synchronization with the leftward movement of the document platen 2, and the exposed portion of the microcapsule paper 13 is transferred to the developer paper 17. When pressed, a color image is formed on the color developing paper 17.

Thereafter, the color developing paper 17 is introduced into a sheet heating device 23 by a conveying roller 16 or the like, and the image is fixed by the heat inside this device 23 and then discharged.

In the copying machine configured as described above, according to this embodiment, the plate 10 for attaching the condensing lens 9 moves up and down while being guided by the id shaft 49 in accordance with changes in magnification. The condensing lens 9 is fixed to the plate 10 by screws 50 screwed into the plate 10 through an elongated hole 9a formed at its base. Therefore, the condensing lens 9 is
It can be moved up and down and left and right by the gap between the elongated hole 9a and the screw 50. Also, the attachment of the base of the condensing lens 9 I! A groove 9b extending in the vertical direction is formed on the side surface of the plate 10, and a first pin 51 fixed to the plate 10 is fitted into the groove 9b.

This first pin 51 is located approximately at the center of the condensing lens 9. For the mounting, a sliding plate 52 movable in the left and right direction is arranged at the lower end of the plate 10, and the mounting is hinged to the plate 10 through a long hole 52a formed in the sliding plate 52. The mounting is fixed to the plate 10 by screws 53. A second pin 54 is fixed to the sliding plate 52, and the second pin 54 is attached through a long hole 10a formed in the plate 10.
is inserted into the groove 9b.

In this embodiment, in order to set the optical axis of the condensing lens 9 to 14g, first loosen the four screws 50 slightly. after that,
To install, insert the driver 55 between the bend at the top or bottom of the plate 10 and the condensing lens 9, and then attach the condensing lens 9.
After that, the screw 53 is slightly loosened, the sliding plate 52 is moved from side to side, and the focusing lens 9 is rotated around the first pin 51. The outside of the optical lens 9 is adjusted 1111 times. Next, tighten the screws 53 to fix the sliding plate 52 to the mounting plate 10, and then (
By tightening the screws 50 and fixing the condensing lens x9 to the plate 10, the 111 alignment of the condensing lens 9 is completed.

In this way, in this embodiment, the inclination of the condensing lens 9 can be adjusted by moving the sliding plate 52.
It is extremely easy to do.

Further, since the groove 9b is guided by the first pin 51 and the second pin 54 in adjusting the vertical position, the W4 adjustment is also easy.

[Effect of the Invention J As described in detail above, the present invention allows the inclination of the condensing lens to be adjusted to 11i by slidingly moving the sliding plate, and the W4 adjustment can be performed in a short time without the need for skill. Take it by doing it.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing only the main parts of the image type R&S arrangement of the present invention.
FIG. 2 is a partial sectional view thereof, FIG. 3 is a rear view thereof, and FIG. 4 is a schematic diagram of the image forming apparatus of the present invention. 1... Copying machine main body, 9... Condensing lens, 10...
・Mounting plate, 5]...first pin, 52...sliding plate,
54...Second pin, 9a...Groove.

Claims (1)

[Scope of Claims] An image forming apparatus in which a condensing lens is fixed to a mounting plate fixed between an exposure table and a light source so that the optical axis can be adjusted, comprising: a first pin formed on the surface of the condensing lens facing the mounting plate, a guide groove into which the first pin can be inserted and which extends in one direction on the surface; on the mounting plate; a sliding plate supported movably in a direction substantially perpendicular to the direction in which the guide groove extends, and having a second pin that fits into the guide groove, the sliding plate being moved to the mounting plate; An image forming apparatus characterized in that the mounting angle of a condensing lens can be adjusted.