JPS58126549A - Variable power copying machine - Google Patents

Abstract

PURPOSE:To enable a correct original placing position on an original platen to be easily recognized, by indicating an effective copying area or its central position through calculation on an original platen changing in accordance with interrelation between selected paper size and magnification (m). CONSTITUTION:As calculating means, a microcomputer MC is used, selected size S of a copying paper and selected magnification (m) are fed as input conditions to MC, and the central position S/2m of effective copying area on an original platen 1 is calculated in accordance with these conditions. As a means for indicating the center, rows of LED's 28, 29 are arranged on the metal bands 24, 25 of a square ruler of the platen 1 along the length directions, 2 LED's are lighted corresponding to the central position S/2m, thus permitting an original to be placed on the platen 1 in accordance with these lights, accordingly, the image part to be copied to be correctly placed on the effective copying area on the platen 1.

Description

DETAILED DESCRIPTION OF THE INVENTION This Ryumei is a variable magnification copying machine. # [Abutment I: The original bridge abutment placement position [Aimed at 5-2 so that it can be easily recognized.

For the convenience of explanation, Fig. 81 shows the general structure of an example of a variable magnification copying machine. 1 is a fixed holder for a fixed holder, and a transparent plate for a glass plate, etc. is shown in Fig. cormorant].

2 is the original elliptical lighting rung, 3-5 are the original elliptical lighting rungs,
6 is a zoom lens, 7 is a solid 'ii! 4th Rura.

8 is an a-drum electrophotographic photoreceptor, 9 to 16 are electrophotographic equipment installed around the Ill of the photoreceptor;
No. 45-24748) - Two following devices are installed, specifically 1:9 is the pre-static eliminator, and 10 is the primary charger 8! , 11 is a discharge device that performs optical exposure, simultaneous C secondary charging, reverse polarity secondary charging, or AC corona discharge, 12 is a full-surface exposure lamp, 13 is an ILK storage device 14 is a transfer charger,
15 is a copy paper separation static eliminator, 16 is a photoconductor surface tarner, 171! A paper feed cassette containing copy paper, 18 a paper roller 111 which feeds out the copy paper one by one in the paper tray, and 19 a paper roller 111 which once receives the leading edge of the copy paper. In synchronization with the rotation of the photoconductor, the output registration roller sends it to the transfer S (the connection between the transfer charger 14 and the photoconductor 8);
20 is an image fixing device, 21 is a copy paper ejection roller, and 22 is an ejected copy paper receiving tray.

Lung 2 and string 1 ()-5 for lighting column are in common ff'J
↑ (omitted from the figure) The affixing is supported, and is always on standby as the home position of the bar position 11 on the left side of the original tower. J' j *, copy start signal 6: The four Mw units are driven forward from the home position toward the right side along the lower surface of the document table.

The $112.lI3 mirrors 4 and 5 are mounted and supported on a common carrier different from the first mirror 3.

It is always on standby as the home position (tt).
Two sets of mirrors 3 are transported in the same direction as 9-5 at 1/2 the speed of mirror 3.

Then, the original Ot to be copied is placed face down on the document table 1, and the original pressure bonding plate 25 is placed over it and pressed down to set it, and the operation panel g not shown in the figure is: For each copy, 4φ items, i.e. copy paper size used, l [copying magnification, I
Number of photos taken: 0 strokes, 1t, IIa degree, etc. [Set. vIL Shashi Shashi Maze A cassette containing copy paper of the required size is aS
1: The heart is the power of copying paper of the required size **at When you get two pieces of paper, the size of 7 is automatically C=kJIgni 1: f! Items that can be kept 1 = 6" CRT, select 19 seconds to operate the copy paper size selection changeover button Vt on the operation panel, and select the size type. ) When you press the button, Suwahashi illumination rung 2 lights up and transfer optical system 2
The forward movement of ~5 is started. This is reversed: Yoj F on manuscript table 1
``The mgmo surface is lamp 26: Yo Yuhara Makidai's transparent thickness [
Illumination line r% in the original seed iii+transverse direction (main scanning direction) which is approximately the direct parent of the working direction of the jig 2 (towards the hosho f near J)
It's been a long time since I've been in the middle of a long time since I've been in the middle of a long time since I've been in the middle of a long time since I've been in the middle of a long time.
From there, IIA is then directed to the right side. Then, the reflected light of the illumination running light moves sequentially.
i mirror 3 → second and third mirrors 4 and 5 → zoom lens 6
→ rkJ1 of the drum photoreceptor 8 which is almost rotated along the path of the fixed m4i roller 7 = kjll in the discharger 11 [, teM
*m light (slit Ia image projection) is performed.

A static eliminator 9 and a charger 1at are placed on the photoreceptor surface that passes through the exposed area.
=xpm Static Elimination・-Next bud charge is received and 1νp is discharged! Receiving the slit storage projection of the rail through 111C:
The projected bag pattern &=corresponding electrostatic latent image is shaped like l! ic
be done. The 7th ** is a multiple choice, and the electrostatic contrast is enhanced by the light of Genlang 12 of the Zenzan version.

In the developing device 15, the original toner image is transferred between the charger 14 and the photoreceptor 8 (from the inside of the cassette to the transfer paper 18). The image is transferred onto the copy paper surface which is synchronously transported by the registration row 919.The copy paper which has received the image transfer is separated from the multi-photoreceptor surface by the action of the static remover a115 into yR parts, and is transported to the image fixing device 20I and discharged. -La 211: Yo9 On tray 22 outside the machine 1: Ejected as a copy.After 11 transfer, the photoreceptor (2) is cleaned by removing the tarliner 161: Yop transfer!111m.

Forward end point 1: Uneven original illumination rung 2, first mirror 3.
Then, the second 85th mirror 4 [phase] 511 is transferred to the first home position and placed in a standby state. When Jin returns, lamp 2 is turned off. Also, the return speed is C:4 for film removal to shorten the copying time! - Faster than speed - Speed 1: Set. Suhara 1lIWA light rung 2, first mirror 3 forward movement - plow distance (JlllE2-1s3 to lar 4
-5 is 1/2 the distance] is controlled by a distance approximately corresponding to the copy paper size generally selected to shorten the copying cycle time (: @m).

In the case of Mardecobee, the above-mentioned reciprocating - optical system 2 to 51: Original illumination scanning is repeated a number of times in succession, and the %A copying function is also repeated that number of times. 1. To be seen in return C: to be carried out.

The first mirror 3 and the second and third electric mirrors 4 and 5 are 1:1/
By moving the document forward at a speed ratio of 2, the scanning distance from the left side of the N plane to the right m side is calculated at each time point and % of the original OEm-4111t-3- Optical path length at second mirror 4 → lll5 mirror 5 → zoom lens 6t,
In other words, the optical path length on the physical world side L is 1-9! As a result, the image of the gland is projected onto the 8th surface of the photoreceptor C without blurring. L2 is the optical path length on the outside side, that is, zoom lens 6 → constant length 4 mirror 7 - side light 1lllf of photoreceptor 8
For a 66° true-size copy with an optical path length up to I, that is, a copying magnification of 1, the zoom lens 6 is set at the position L,
Rung 2 for Harahashi Terukina ・gl i t-5rn@IIt
aR=VCItg2 o86 mirror is V/2), photoconductor rotation *=v.

In the case of variable-magnification copying, that is, 1 (enlarged copy) or 1 (small copy), the position of the zoom lens 6 or the position of the zoom lens 6 (not shown in the figure) may be changed depending on the setting magnification (m-2). j L,,/
1. ,=Otori, When shifted to the relationship of Shift Dragon (L knee)/2, the focal length 111f becomes Vf = 1/L.

"' / L s """ 1 / Lx+ 1 /
In L -5 is V/2m) - is executed with two changes (the photoconductor rotational speed V is unchanged).

FIG. 2 (IL) is a flat ifI diagram of the document table 1, and the exception is that it is placed on the side of the document up to 3MjL using the so-called corner standard method, that is, the right angle 2 of the In the case of the example with one side, a right angle ruler strap 24 and 25 is provided to measure the original Yokoso fastening member along two sides C, the top side and the left side.
P3w of 24φ25 is used to position and place the original document with two right-angled sides of the original document as a foreshadowing line, with the original document facing downward inside the second image on the document table 1, and also To.

26, 27 (85-mu 4, B4, A3 μ upper side ruler band 24-25 The corner standard indicated by printing etc. on the top side is 6. I: Correspondingly, each size is the so-called one-sided standard. fII is sent.

Fig. 2 ('b) shows, for example, the zoom lens 6 in the case where one person makes a full-size copy of the 4th edition, 5M, t = enlarged copy, BS version J: # small copy and t. Shift position, original 00
Photoconductor surface connection position, two-sided mist reference paper feeding on photoconductor surface 8'
It also shows the relationship between various copy paper sizes.

In the case of a same-size copy to the lens 6, 1l = L2 / L = 1 (L
Relative position 6' (= 6 ta, enlarged copy (mu 4 →
In the case of A3), the relative position of L-Mechanical L-work Φ1.41 is 6"
In the case of reduced copying (Mu4→B5), shift to the relative position 61' where magnetic = I, /L□ 0.87, and make a life-sized image of Husband + IIA*o. 3IIL enlarged image.

When the B5 plate width reduction I is the photoreceptor 8 side g:# image polishing of the ulcer, the paper is selectively fed from A5@B4 and A4-B5 and the next copy paper Pmt=transferred. Even in the case of a size other than the 4th edition original, the lens 6 is shifted in the same manner as above according to the selected copying magnification of 1: 1:1, enlargement/reduction.

In the case of the copying machine in this example, there is a copy paper Ryudaisuzu TM 3 edition which can be placed completely on the document table 1, and a copy paper Ryudaisuzu tm 5) which can be used. Enlarged copy 1
:l1lt, for example, a small size B531 [The original type can be enlarged to cover the entire manuscript surface up to the third edition of the copy paper, so the copy magnification for enlarged copying of the entire manuscript surface is 11% A has a large selection range, Haragiri size or large heat (
6: Therefore, the choice m is a small one, and the large size M3 original bridge i two i'''C can be reproduced at the same size as the entire surface by copying on A3 size, and larger enlarged copies are not possible. Becomes the eyes.

However, it is possible to make an enlarged copy of the original Ill1ia3.

By the way, the copying effective surface area on the document table 1, Rima pj [Abutment 1
The copy paper of the selected size fnP3s is placed on the original paper placed on top of the copy paper of the selected size S in the area to be copied.
and the overcharged copying magnification are mutually y4 times the square ruler strap 24
-25 as two common right-angled sides, g11τ of 8/xr
It changes widely. In other words, if the same size copy xa = j, S
/ ra = 8, the copying effective surface area on the document table 1 is within the selected copy paper size up to t.・It corresponds to the range indicated by 27. The effective area for copying in the case of an enlarged copying layer, ) 1 and a Jlf small copying layer is expressed by the equation S/M2.Therefore, in the case of a full-size copying, the effective area for copying changes from a narrow range to a wide range. However, the portion of the document surface located outside the specified range (2) is outside the selected copy paper size range and is copied.

Standard size (B5/A4/B4/
A3), then make a full size copy of the entire aspect, or use a magnifying machine within the magnification that allows copying the original bag image according to the selected copy $M size 1. Or make a reduced copy 5J! 1
In case of 1st case, the original type is single #1.J: FI holder 1i: Place it on the corner reference using the ruler strap 24025 and execute the copying. 2: I don't think you'll be confused at all, but if you look at it, it's a standard manuscript, but it's like 1lla full 5 (
:Central part of manuscript OIm and side C:Ryotsu part area 0'C: Rii? , I position the partial area 0' at the center of the copy paper of the selected size and copy it at the desired magnification.

b - Original table size 1g is also small i The manuscript is of an irregular shape, and the entire manuscript of 7 or the J51r required image area is selected in the size of the copy paper In the garden C: Copy at the desired magnification in the stored form In one case.

O--Original table size p% large tAvhfIl and large temperature setting needle diagram.

For large-sized manuscripts such as Shinseki Paper II steel statue area σM
Then, place the partial area at the center of the copy paper of the selected size and copy it at the desired magnification.

In such cases, the right angle ruler clasp 24-25 is S @ 5 = x
TS's copying atrocity - The entire irregularly-shaped manuscript is folded into the selected copy paper size and the selected copy magnification in the healthy area 0' precept!
However, the effective copying area on the document table cannot be clearly recognized, and the original is placed 1: RL. = Causes confusion.

Therefore, in the past, trial copying was carried out by matching the document platen WIlB position ε, which is considered to be the effective direction area v1'1#: the image area of the original to be copied, to perform a trial copy. I have to look at the image position of the copied copy, correct the position of the original on the document table, and copy again, but now I have Copy 6: Hama Kakaro, and Trial Copy C: A wasteful copy. 6% uneconomical (as in this example copier, 62
Facing C, place C on manuscript table #1 in the pigeon coop.
iigII Image f11 partial area 0 to be copied without looking at the song
' is considered to be the effective copying surface area, and Mishima corresponds to the position of fL6 document platen m, so even more so between the two. The number of copies has increased, and the number of copies required has increased by t%, making efficiency difficult.

The M plan was created by looking at the above for the unexploded @, and it is a variable-magnification copy @
- 2. Effective copying area S/Otori on the document table whose width changes depending on the selected copying paper size S and the fixed value copying magnification,
Alternatively, display the central point position 8/2 of the surface area every time the incident 8 m changes, and use that display as a guide.
Copying the manuscript from the beginning is almost accurate to the area outside the self-portrait S.
: It is possible to position and place the copies in correspondence with the effective copy area on the tray. This eliminates the confusion of using C: Original Placement (:w4) as in the past, and also eliminates unnecessary copying due to trial copy C: and improves the efficiency of copying work.

In other words, in response to the input of the selected copy paper size 8 and the selected magnification 0, the effective copy surface area S/Peng on the original placement table surface C; or the center of that surface area. Point position 8/2
A means for calculating 11 is provided, and a means for calculating the copying effective surface area in the original mounting table curve M: or a center point position of the surface area is provided. The gist of this invention is a variable multiplier multi-military aircraft characterized by being fully equipped with the above calculation means and a cruise display indication means.

Hereinafter, based on the embodiment of the T diagram, a variant t=Va will be calculated.

Yi 111? l 1 ([4-5111) Infl displays the center point position of the effective copy area (copy paper of the selected size (: original area to be copied) iiam confuses 5-=
It is a powerful force.

As a calculation means, use a Mytaro computer MC, input the case of the convenience store/4 = selected copy paper size S and 1 selected magnification hazy, and calculate the original platen 11i yen (2 The center point position 8/2 of the copy effective surface area is calculated.

Inputting the selected copy paper size S for the Micron Bième MCj2 is to input the capacity and weight of the copy paper of the size to be used in the copy machine. J: 11 Detects the size of the copy paper when it arrives and inputs it actively, or a multi-stage manual type C: If there is a copy paper size selection switching point on the operation panel. When you select the copy paper with 1I size by operating 1, you can input it automatically.Also, to input the magnification 1, operate the copy magnification setting device on the operation panel to select the desired magnification, and at 9 : Human power electrician nine.

28-28.29. ~2- is the inside of the effective copy area. This is a row of LEDs arranged in rows of -9.

This corresponds to the center point position 8/2 of the copy effective surface area S/o which is calculated by the miterrocomputer MC based on the copy paper size S and the copy magnification m6 which are manually input. The LED rows 28□-28 on the horizontal strap 24,
and LED row 29□~29nt on i11 direction strap 25
Turn on each LID.

In other words, the lighting LEDs in the horizontal LED rows 281 to 28 are connected to the 6 vertical lines, and the lighting L in the vertical direction I and ED rows 29□ to 2-
The intersection point with the horizontal line passing through ED is smaller at the center point of the effective copy surface area on the bench with the selected copy paper size S and copy magnification m. Therefore, use this as a guideline (: Place the original on document table 1C.
:Placement 1: Copying of the original can be carried out almost accurately and easily in a position corresponding to the copying effective surface area C; on the original platen. Rimarikore (
From the second position, place the IX bridge on the manuscript table C; place the cab''cop
The confusion has been removed, and I can make a trial copy again! Eliminates vomiting and improves work efficiency.

Lateral force direction, longitudinal direction I, ED rows 281-28, 29. ~
Densely arranging a large number of 29 units C: It is also possible to cope with the problem even with 1-length a-curve units. Show &! You can also make it thinner.

Embodiment 2 (FIGS. 6 and 7) This example is an example in which the magic lantern projection 2C: copying effective area is changed to the document table surface i: display fiber recognition.

That is, a projector 30 is supported by a support 516 on the upper blade of the document table 1 so that the surface of the document table serves as a screen, and the projector! Display the effective copying surface area by illuminating the effective copying surface area range on the document table defined by the selected copying paper size S and copying magnification lim in the form of a frame C. I can use something like this.

Figure 7 is a plotter diagram of the control system of PJETER/30.Select the submersion copying paper S and the copying magnification 4. The amount of shift in the X and Y directions of the t size display master 32 and the amount of zoom of the grozier lens 35 are calculated, and based on the calculations,
Direction Nervo Motor 54 I Y7j Direction t--Botter 3
5 is driven, the position of the size display master 32 is shifted to an appropriate position (the shift mechanism is omitted from the figure), and the lens 53 is driven.
Proper position 4: The size display master 32 is placed in the customary area corresponding to the copy effective surface area on the document table defined by the zoomed and selected copy/copy size S and copy magnification m. II is enlarged and projected, and the effective copying area is displayed and recognized. Then, the original document is placed and set on the document table in correspondence with the display area C: the partial area of the image of the document to be copied.

38 is a light source, and 39 is a condenser lens.

Above, this book @Akira took as an example the original document placed and set using the AT bridge abutment 1 = corner reference force method, or the document was placed on the center reference 1 set, that is, in the m direction of the document table 1 or on the -7 center line. Align the lateral force direction or longitudinal center line of AIL #4 unit 1 -: *
It goes without saying that it can also be used for anything that performs manual copying.

[Brief explanation of the drawing]

Figure 1 is a very schematic configuration diagram of an example of a variable magnification copying machine;
Cause (IL) t! Plan view of the original mounting table, same E. Fig. 5 It shows the mold area in the 9th drawing (E: 1F') beside the center of the vh original horizontal drawing, which has been positioned and copied at the desired magnification at the center of the copy paper, Figure 5, l114 The figure is L as a means of indicating the effective copy area or its center point.
FIG. 5 is a plan view of a document table equipped with an ED column, FIG. 5 is a boot switch diagram of its control system, FIG. A control system diagram of the Glozieta. 1 is the original table, 28□~280.291~29t is L
ED column, 30 is 10 dioctor.

Claims (1)

[Claims] +13 Upon receiving the case input of the selected copy paper size S and 0 selected magnification type, the copy effective surface area 8/l in the original elliptical mounting table direction δ for that case, or the center point position of that surface area. S/
2IIlk-means for computing and its computed original II@
The position of the copy-effective ITI castle or the center point of its surface area must be recognized on the mounting table C: (the ff ratio is set on the original mounting table, the display guide means linked to the above-mentioned calculation step, and the A variable multiplier machine with features.