JPS5933443A - Electronic copying machine of original platen moving type - Google Patents

Abstract

PURPOSE:To prevent easily the invasion of dust in a rod lens, by providing a transparent glass in the optical path through which the relfected light from an original reaches the rod lens, and cleaning the upper face of this trapsparent glass with a cleaning member. CONSTITUTION:An original 8 on an original platen 7, which is provided to freely move back and forth in the direction of an arrow, is irradiated by the light source 5 through an aperture part 3, and the reflected light passes through a converging rod lens 4 and is focused onto a drum 6. A transparent glass 12 is provided in the aperture part 3 of a light shielding plate 2, and a cleaning member 13 consisting of felt or the like on the lower face of the original platen 7 is slided on the upper face of the transparent glass 12 according as the original platen 7 is moved back and forth at a copy time. Consequently, dust of a floating toner or the like is prevented from sticking to the surface of the rod lens by the transparent glass, and the upper face of the glass is cleaned with the cleaning member 13, and thus, the picture quality of the copy is improved.

Description

[Detailed Description of the Invention] The present invention relates to a mobile electronic press.
The ゜ηth figure is a conventional document table moving type vehicle j'multitJ' B! a
) This is an example. Multiple? wo゛low body 1 of 1
A light-shielding plate 2 is provided in the section to block out light from the outside. A slit-shaped opening 3 is provided in the middle part of the light-shielding plate 2. A converging type lens (collective optics M)'1 is provided in the hand sword of the 11th part ζ3 of the light-shielding plate 2. Focusing type [-1tolens/l G;l,
It consists of two rows of rod-shaped lenses arranged parallel to each other and closely spaced or staggered. As a result, the space occupied by the optical system becomes smaller, and the number of copies is reduced.・I am good at Nizuru. Focusing type [1 light source 5 next to the lens 4
) is established. Focusing TL, 11 lens 1-lens 4
A photoreceptor dot 6 is placed in the direction of the arrow (6-turn white stone I32) on one side. Light blocking (Le 2 10,000 (A
l The Latin glass (original table) 7 is in the direction of the arrow 1. The document 8 is placed on the shifter glass 7, and both are moved backward in the direction of the arrow Jj.

This moving document 8 is
irradiate. The reflected light forms an image on the -C photoreceptor drum 6 through a focusing lens 4, forming an electrostatic latent image. If a reading element is provided instead of the photosensitive drum l\(50), an image signal is created.

Where's 'C' fiY-this one at the end?
The reflected light of 1 shear ε is converted into 4 east type 11 lenses 4 (,, -
I need it! 15: On the first day, 11 parts ζ3 of 1 to 4 pieces of ribs were installed on the sunlight elm 2, 4J-L. However, the part 3 is literally 0 mon 1 j shi (iro no n-', floating 1- j
', -1 is stiff, crowded, 9 enters, concentrated] 1 l of lens 4.

However, the area around the light sources 5, J3 and light sources (such as the installed Rirukuta 9) will be affected by the stone.As a result, black streaks and fog will appear on the copied image, and the bracketed image will look inferior. It has the disadvantage of being a bit of a bit of a bit of a bit of a bit of a bit of a bit of a bit of a bit of a (
:, G:L=X To remove bamboo, use 1 harvesting machine 5>
1% (If it were J, it would be very troublesome to clean.) It had a drawback.

The present invention is based on this J.
etc. 1; 1 reel t-to e'ki, cl: ta'rJ: c-li', q (/'l entry wo Nl It is an object of the present invention to provide a movable electronic projector that can easily remove this problem.

According to the present invention, the 1-1 part of the light-shielding plate is closed with a transparent garnos, thereby preventing the intrusion of debris, etc. Also, the cleaning member is attached to a portion other than the image information area on the top surface of the document table. is provided, and the upper surface of the transparent glass is cleaned with this when the document table is moved +1i'+.This achieves the purpose of direct placement!Jru.

The following is a detailed explanation of the present invention following an embodiment, and the same parts as in FIG. 1 are denoted by the same reference numerals. There is a letter C that represents the main parts of the machine.
A transparent crow 12 is installed in the part 3 through a boulder 11.The upper surface of the transparent crow 12 is covered with a light shielding plate 2, a
A cleaning part side 13 is provided on the lower surface of one end of the moving direction of the glass 7.
413 is provided on the small side of the instruction handle 14 (see FIG. 3) for instructing which pit position C according to the size of the image information of the original 8, for example. The cleaning member 13 is made of, for example, nonyl, rubber, cloth, heat input, or synthetic fiber bristles. The end of the cleaning part Δ13 is located at an appropriate distance Wi L/-1 from the surface of the transparent glass 12.

In this electronic copying machine, the opening 1-1 part 3 of the light-shielding plate 2 is closed by the transparent glass 12.
No, no debris, debris, etc. can enter! It is hisaru to show.

Therefore, dust etc. may accumulate on one surface of the concentrated rod lens 4.
The light source 5'C--original 8 can be irradiated with light since the transparent glass 12 transmits light rays. There is no inconvenience in using a focused type 1" laser beam to avoid the reflected light.

If there is debris, dirt, etc. on the soil surface of the transparent crow 12, move to the Ninorangasos 7 and J-(Ruri 11, --- Ning member 13. ℃These are removed. Line I3 copy 11, Umiko is goono 1 glass 7 reciprocates in the direction of the arrow (
・A cleaning part hand Δ'l that reciprocates with this,
, 3 is attached to the soil 1n1 of the transparent crow 12 as shown in Figure 3. ” When you arrive, automatically t, h・j (J is removed.

In the above embodiment, the cleaning parts 1 and 3 are provided on the 1st side of the Latin glass 7, and the transparent glass 12 is removed every time copying is performed.
(C) cleaning is performed, but is not limited to this. For example, as shown in Fig. 4 and Fig. 5), the cleaning member 1ζ3 is attached to the far tunnel-shaped part side 15).
The Pshiran is installed on the bottom side of the cis7
6Bli can be freely taken on one end of the direction 1 (opposite (or ゛) of location q shown in Figure 4).
,stomach. The take-off member '115 is shown in Figure 4
As shown in FIG. 1. Take the 1st part IA15 and shoot it to the system 7. ! (I take 1, it's easy to get 6 out of 4, but I'm in the middle of the tube (I'm in the middle of the day, so I don't get out of the J.) If it is necessary to remove (J crease 2, side 13 of (The cleaning section 13 itself can be easily cleaned).

As explained above, according to the present invention, it is possible to prevent the sending body ql\ (and L stiffness etc. from entering) into the concentrated f1 light 1.
' = IWI stop 1 ξ - and (・sa, also J to transparent canos) etc. (j1 person (gl, "ne wo easy (1
-Removal (J Rui Doga(・Saru no (Pa, t in the air, L
It is important to eliminate the inferiority of duplicated images caused by factors such as , :l, etc., and the cost of duplicated images will be reduced.

[Brief explanation of the drawing]

FIG. 1 is a 1-11 page view of an example of a conventional electronic duplicator with a movable document table, and FIG. 7" Remaining joint longitudinal section of machine"
[Front view, Figure 3 shows a state in which the document table in A has moved, and a partial vertical + I view, and Figure 4 shows another embodiment of the present invention.
- Perspective view of A3 original platen, Fig. 55 1.1, -(
A perspective view of the cleaning part side (there is a part). 2... Light shielding plate 3...
Part 4...Collection pil, 1J (1st lens 7.
...Zonolangasis (original + M unit) 12 ... Transparent gaff '13 ... Cleaning department Δ Applicant Fujize I" Tsukusu Co., Ltd. 71 Representative
Person Patent Attorney 1 Ume Yamauchi N(
Figure 2

Claims (1)

[Claims] There is a light-shielding plate placed on the upper part of the projector and located on the right side of the slit 1-shaped part, a document table that is movable back and forth in the light-shielding part, and an opening in the light-shielding plate. The light beam reflected by the original is exposed to the light beam set at
A focusing type 11 lens is provided to avoid 4-knee image formation, and a J, which closes the aperture of the light-shielding plate, is provided on the upper surface of the light-shielding plate. A protected cleaning part side is provided in a place other than the image information area on the surface d3, and the cleaning member is transparent when the original is moved. (-What are the characteristics of 1 quintillion manuscript table moving j (electronic copying machine).