DE7037637U - ELECTROPHOTOGRAPHIC MICROFILM MAGNIFYING DEVICE - Google Patents

Description

Gbm 4 50 FP-Dr.S-cb February 1, 1974

description
for registration of

KALLE AKTIENGESELLSCHAFT
Wiesbaden-Biebrich

for a utility model
to a

Electrophotographic microfi ^ re-enlarger

\ The present innovation concerns an electrophoto-

graphical hikrofilir.-back-enlargement-device that
especially in the field of technical drawing
vjesens and the documentation is used.

There are already electrophotographic magnifications r> »

known devices in which the copy material supply to -

It is in roll or sheet stacks form. With the well-known - ^ _

Roll processing devices with only one supply roll the usability of these devices is assessed in a way that is undesirable in practice,> generally can be enlarged back to two formats at most can. Moving to a format that is not on the supply roll is time consuming and cumbersome role changes. For this reason, the copy material in such devices saving possibility to enlarge back to smaller than the original formats, practically no use be made.

It's also a two-roll re-enlarger known that with an intermediate image carrier in the form of a photoconductor layer on a rotatable Drum is equipped. The enlarged image of the film negative on the rotating one The drum requires the negative to be moved past the exposure gap with one of the to be set Speed dependent on the magnification factor. Apart from the high mechanical and electrical The expense of optical imaging, this method has the disadvantage of possible motion blurring.

The gap-wise image of the negative on the photoconductor drum does not allow any control or correction of the image position in the case of relatively frequent occurrences inaccurate assembly of the negatives in the common film punch cards. In addition, the toner image transfer process requires a high energy supply to Fixation of the image on the final recording medium.

There are also back enlargement devices, which are necessary for universal applicability Changing the magnification by changing the distance of a lens or by replacing it of the entire projection part is made. Setting the enlargement factor by changing the adstand requires the complicated simultaneous, interdependent change of bilateral and object distance, including the entire projection head and in this the lens relative to the negative plane have to be adjusted. This process is time consuming and requires considerable technical effort to achieve sufficient accuracy and intensive training of the operating staff. There are also devices in which the projection * ■ head exchanged when changing the magnification factor

-H-

must be, no quick and efficient work,
when the paper size and enlargement factor often increase
change because the projection head is unwieldy and heavier and has to be readjusted each time. In addition, there is a risk of damage if handled carelessly.

The known back enlargement devices with one or more stacks of sheets have regardless of whether they are equipped with a constant or variable magnification factor, the disadvantage that the sheet stacks, especially for the larger formats, because of their space requirements, have a disadvantageous influence on the size of the device and that the automatic removal of a single sheet from the stack of sheets, experience has shown, is much more susceptible to failure is like cutting a format off a roll. In addition, it requires great care to complete of the sheet supply, especially with larger formats, annoying, with the additional risk of mechanical There is damage.

The task of the present innovation was therefore

an electrophotographic microfilm re-enlarger to create which has the disadvantages described

avoids, is universally applicable, easy to use is, enables high copying performance, is inexpensive and ensures low energy consumption.

The solution to this problem is based on a clcktrophotographic microfilm magnification device, which is equipped with a holding and lighting device for the negative image, with lenses and deflectors that can be pivoted into the beam path, with a ground glass for projection of the Negative .., with a holding device for supply rolls with draw-out and cutting device, with an electrostatic charging device, an exposure, development and drying station and an output for the finished re-enlargements, and with means for setting the enlargement factor, for preselecting the format and number of reverse enlargements , for controlling the copy paper take-off and for cutting

the material web and for controlling au ^ course of the electrophotographic process steps. The device is characterized by several, preferably three in the focal lengths so coordinated in the beam path pivotable lenses 19 that the image of the negative with fixed magnification factors on a device-fixed image plane with approximately the same can be controlled via a ground glass 25 in terms of image content and position Projection distance is provided by a cutting device 7 provided for several, preferably two, material web guides 5> 59 with self-sharpening Kesser do, d9 "'it variable cutting angle and by play-free, reversible, inseparable and elastic with the optical elements 16, 20, 21, 26. 27 coupled drives which can be switched on and off by means of induction switches HQ in such a way that the optical elements can be locked in adjustable positions by resilient locking bolts bl.

The microfilm re-enlarger according to the innovation is described in more detail with reference to the accompanying figures. Figure 1 gives a schematic of the overall structure of the device Again, Figures 2, 3 and 4 explain the scheme of a backlash-free, reversible, non-releasable and elastic with Mirror 21 coupled drive in elevation, plan and side elevation, Figure 5 shows the arrangement according to the innovation from the copy material holder and conveyance into the take-off device 3 up to the Sehneidvörgang, Figure 6 explained the cutting device 7, and Figure 7 shows a front of the device.

A negative image 15, for example, is used for projection that of a film punch card, with a low-voltage point light lamp 16 by means of a double condenser 17

illuminated in such a way that the point light source is imaged in the entrance pupil of the objective, the lamp being automatically adjusted to the correct distance when the objective is changed. To protect the negative, a heat filter 18 is provided. The film stage itself is arranged to be pivotable. For the projection of the film image onto the electrophotographic copy material, three objectives 19 of different focal lengths are provided, which are located in an objective nosepiece 20. The focal lengths of the lenses are chosen so that the projection of the device-mounted negatives onto the device-mounted image plane 9 takes place with approximately the same projection distances. Since the focal lengths of the lenses on the market are not exactly matched to the ratio of the desired magnification factors, the exact magnification factor is made by parallel displacement of the first mirror 21 of the two mirrors 2I ₁ 22 deflecting by 90 ° in the direction ν of the optical axis of the imaging lens . In a preferred embodiment, the focal lengths of the objectives 19 and the projection distance in interaction with the mirrors 21 and 22 are selected so that magnification factors of 7.4, 10.5 and 11.8 can be set.

The exposure time will be according to the ratio

} of the adjustable enlargement factors

exposed areas of the image plane with the choice of

Magnification factor 77 is switched automatically. Cheats

the ratio of the magnification actuators a: b: c, about 1: \ 2 ; 2, the ratio of the exposure times must be a ² : b ² _: c ² , for example 1: 2: 4.

This simplifies the operation significantly in a Way achieved that when changing the enlargement factor 77 when enlarging negatives] approximately the same density, no manual adjustment

: the exposure timer is necessary. External ex'uem

\ the relative setting sensitivity remains the same

change of the magnification factor obtained so that; the adjustment angle of the setting knob 89 - Fig. 7 j for the exposure timer to compensate

\ a certain density difference in all

Magnification factors is the same.

All movements of the optical elements, such as point light lamps 16, objective nosepiece 20 with three objectives 19,

Mirror 21, mirror 2C and aperture 27 behind the ground glass 25 in Figure 1 are backlash-free, reversible, inseparable and elastic with the optical

Elements coupled drives causes what, for example for mirror 21 is described with reference to FIGS. 2, 3 and 4.

The main guide shaft 34 and the counter guide shaft 35 are mounted between two webs 31, 32, which are located on the fixed housing 33. Two slotted ball bushings 36 with an adjustable bearing flange 37 are arranged on the main guide shaft. The counter-guide shaft 35 receives a ball bearing 38 with stud bolts 39 and pressure pin 40. Both are connected to a flange plate 4I ₁ which serves to accommodate the housing for the mirror 21. A drive motor 42 with a brake that can be switched on is arranged in the flange plate 4l. A synchronous drive motor 42 with a permanent magnet is preferably installed. The pulley 43 is arranged on the transmission shaft of this motor. A cable 44 runs from the right web with a loop around the pulley A3 to the left web 32, where it can be pre-tensioned by means of a tensioning screw 45. On the flange plate 41 there is also an extension 46 with a control flag made of lamellar steel with a material width x. This control flag 47 moves through four induction switches 48, which are designed as slot initiators. They can be adjusted axially on the Juatier bridge 49.

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Above the fixed housing 33 are the mechanical locking steps 50 arranged, which are adjustable by axial movement.

The locking pin 51 with roller 52 is in a spherical liner 53 out, which is in an adjustable housing 5 ^ gsisigert - Dsisit can transverse forces can be added without tilting the locking bolt 51. The coil spring 55 with adjustment bolts provides adjustable counter forces. The intermediate placle connects the housing 5 ^ to the bearing flange 37.

There are four induction switches Ί8 for three notch steps 50 arranged, with the middle two induction switches responsible for a magnification factor are. Since the control flag ^ 7 has a material width χ the control edges of this flag lie by the material width χ when the motor is turned to the right or to the left apart, so the middle induction switches must also ^ 8 apart by χ. Depending on the direction of rotation a switch of this double arrangement is ready for use.

The respective induction switch 48 is controlled by selecting the magnification factor, the direction of rotation

of the motor 42 is controlled by a logic circuit so that that the switch would come off in the shortest possible way will. The rotation is transmitted to the pulley 43, by wrapping around the prestressed Cable 44 runs enticing the pulley on this.

If the control flag 47 has the induction switch with its edge Covered up to its switchover point, it switches off the drive motor 42 precisely and precisely. Within

from 50 -us the motor brakes itself through its permanent

Permanent magnet itself and engages with locking pin 51

• into locking step 50. By adjusting the induction switch 48 on the adjusting bridge 4 9, the Motui— Shutdown be coordinated so precisely that the locking pin 51 when it falls into the locking step 50 no longer has any movement energy in the adjustment direction.

For the optional control of the film image with regard to the image content and the position in the image window i ^ t a ground glass projection provided with its own lens 23 (Fig. 1) and a fixed magnification factor of about 6 is made. The adjustment is achieved with three adjustment knobs 24, ä through which the film stage rotated and in height and

is moved to the side. The correct La ^ des Film image can with the help of on the screen 25 - Fig. 7 - attached format markings rest ^ will.

When the screen projection is switched on, the projection lamp 16 is at the correct distance driven to the imaging lens 23, dtr erutc Mirror 26 of the ground glass projection system from the side retracted into the beam path, the

% Aperture 27 behind the ground glass, which is

Process prevents the penetration of extraneous light,

withdrawn and turned on the projection lamp l6. A roof prism 28 and two surface mirrors 29 are attached to the objective 23 > 30 followed up. At the Switching off the screen projection manually or automatically by pressing the start button 82 for the

The copying process is reversed Direction.

The microfilm re-enlargements are produced on electronic photographic copying material, in particular zinc oxide paper. Here, the supply of material in the form of two rollers 1 'is on axles nut end in braking, stored Friktionsanordnungen 58, of which at least three different formats preferably DIW formats are cut. The material

roll beginnings are threaded into a common exhaust device 3, which consists essentially of Tranaportrollen ¹ I, j two Einführschlitzeri 'and 6 consists Rückholelementen.

The two insertion slots 5 and the continuously acting hold-down device 59 (FIG. 5) form in the preferred device version a common component.

The insertion slots 5 are conical Sehächte with a Aperture angle between about IQ and 30 ° resulting from a acute-angled wedge plate 60 and the cover plates 6l are formed. The wedge plate 60 has an approach in Direction of the bisector, which together with the

Cover plates 6l two channels designated as hold-down devices 59 of height h. This component fulfills in the simplest way the purpose of feeding the copy material web 62 to the cutting device 7 without interference and to stabilize it for the cutting process, surprisingly good. However, one becomes a stabilizer tion of larger material web widths in the cover or Wedge plates, preferably in the area of the Hold-down 59, add beads or knobs. Their course can be over the entire width of the material web or even only cover a part of it.

for r

The gap height h is for the purpose of precise guidance and stabilization of the copy material web 62 as small as possible. The lower limit of the Spaltuöhc depends however on the technical properties of the railway and the selected feed rate. The gap height extends from twice the material width thick to about 3 πιπί.

In a device version in which the 75 to IuO .u thick I and 297 or 420 mm wide copy material with approx 10 ro / niin runs in, a hold-down device with a * Proven gap height of 0.5 mm.

The Kopieriiiaterialeinlauf is effected by eau Walzensystein, consisting of the two transport roller and a swing roller ^ 63rd All three rollers are coated with rubber or plastics to improve the grip when pulling off the material webs.

The transport rollers h are assigned to the introduction slits at the smallest possible distance. Its circumference is tangent to the bisector of the opening angle from the outside. Only one pivoting roller 63 is provided for both transport rollers, which if necessary

• # a ·

against one of the two transport ^{rollers J} ! presses. In the idle state, the swirl roller 6} is located geometrically between the two transport rollers M.

The permanently installed transport rollers, which are adjusted relative to the image plane 9, are connected by electromagnetic clutches to a chain drive that continuously revolves during operation. In a preferred embodiment, the pivot roller 63 does not have its own drive, which is, however, appropriate for larger material web bites approximately over 500 mm. The pressing of the pivot roller 63 against one of the transport rollers k is carried out, for example, by an electromagnetic double lifting magnet 64. Instead of the double stroke magnet 6H , other known possibilities can also be used.

Before and after each entry of the copy material, the transport rollers H are at rest, the pivot roller 63 is in its central position and the material webs 62 hang in a loose loop over the return elements 6,

until an electrical impulse is simultaneously the electromagnetic Coupling used to transmit rotary motion is attached to the transport rollers and the double lifting magnet: 6 ^ d «r swivel roller 63 in the through the Selection of the reverse enlargement format excited certain pivot direction, so that the pivot roller against the

i relevant transport roller U presses. That between

j copy material lying on these two rollers

thus deducted from the relevant supply roll. The return element 6 is jolt-free due to this firming material is also pushed out of its zero position I. The couplings of the transport roller ^ and the

I ' double stroke magnet Sh of the swivel roller remain up to

Triggering the cut excited. The roller jumps after the cut back to its middle position,

<retract the set distance kaiin.

ι The execution of the return elements 6 is for the upper

^; and the lower supply roll 1, 2 different. On the

! Layer side of the upper copy material balin runs one

j covered with soft material, preferably rubber

t rotatable, weakly braked roller 6a. The backside

: the lower copy material web is over a table ob

- i8 -

with ί-material return inspection 65 drawn. Both return elements are suspended pendulously, and their pendulum path is limited by adjustable stop screws of the usual design.

Rollers with freewheeling or foam bars or brushes can also be used to prevent the return of material Lever bearings of known type are used.

The return elements 6, which are different from the inlet tightening material web are pressed out of their zero position, smooth during the feed of the material web the web of material by its own weight or the spring preload. After the cut, if at the same time the copy material feed, as above described, is interrupted, pull the return elements by their own weight or their spring tension the web of material from the cutting device 7 back into the respective insertion slot 5 or hold-down 59. This prevents the two strands of the supply rolls from touching each other and each other when the material is fed in again hinder and that the uncontrolled is carried along by the controlled web of material to the knife will. In the rest position, the copy material web hangs as loose

Loop over the Poickho! Element or it will von der Materialbahnrücklaufhen-niuiig 65 ^ est This avoids the loose copy material web from the; Hold-down device 59 slips back. The new ones Retraction elements have the advantage that the * - 'iederabzug from the supply roll even at high speed without jerk and gently, whereby in particular any damage to the sensitive photoconductor layer is avoided.

Immediately next to the extraction device 3 is the dif * cutting device 7 arranged for cutting from the leading edge of the material web by knife switch 66a is controlled.

One uses chopping, turning or VJalzenknife, whereby the cutting edge of the upper knife has the most varied of V or VJ shapes. With rotary or rotary knives the cutting angle is achieved by installing the knife in a spiral. The known devices have the common disadvantage that the knife movement is perpendicular to the material web to be cut, as a result of the rectilinear impact of the cutting edge, the photolextra layer is splintered. the Splinters are mainly found in the area of

* n Aj

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winkeis of the knife, so that after a relatively short period of operation, the knife clogged up and thus an unsatisfactory one Has service life.

In the case of the embodiment according to the invention, however, occurs the attachment of splinters to the knives and the resulting failure of the cutting device not on.

The cutting device (Fig. 6) is designed as an independent slide-in unit. It essentially consists from the base frame 67, the knife lamella 6P, the cutting knife 69 with two guide levers of different lengths 70, 71, an electromagnet 71a of known type and a return spring 7 2 for the cutting knife.

Parallel to the material web plane 7 3 is below this, in the lower part of the base frame 67, the knife lamella let in so that it is only fastened on the side where the cut begins and with a spring 74 against the Cutting knife 69 presses.

The cutting knife 69 above the material web is guided by a shorter guide lever 70 on the side of the Start of cut and a longer one, preferential prices double so guide lever 71 lances in at its other end

mounted so that it can oscillate, that xcälnrend des Cutting process a constantly changing cutting angle results. In the case of an execution, there is an angle of intersection from approx. U at the beginning and approx. 20 angular minutes at the end of a 420 inra long cut as special proven favorable.

In the case of the innovation-compliant design, this shifts

Cutting knife 69 with steadily increasing cutting f

f speed diagonally from above and from one side

into the material web to be cut 62.

together with the resilient blade lamella 59 will ■

at the same time achieved that during the cutting

_ ganges always only a point contact of the cut edges ] of both knives and that so the cut edges

ί ~ i

"i sr spicy myself.

Downstream of the knife is the electrostatic charging station 8 in the form of a corona device for

- uniform charging of the photoconductor layer. That electrophotographic material is charged after electrostatically charged conveyor belts 9 taken over at the same time as the exposure level

,,", represent. Make exposure through the projection r,

the conveyor belts transfer the format the development station 10, in which dispersion

Developer is sprayed from a slot nozzle 11 onto the upper side of the electrophotographic material and the excess developer is removed by a pair of squeezing rollers 12 made of elastic material, which are only pressed against one another when the device is switched on. Before the finished copy reaches the collecting basket 13, it is dried ^{by a 1 L air stream.}

The management of the formats through cutting, exposure and development stations 7, B, 9, 10 in an approximately horizontal plane, in conjunction with the provision of the copying material in roll form, enables comparatively small device dimensions while maintaining the advantages of the stand exposure. ^{By avoiding all detours, the T.} Jeg, which is essentially determined by the dimensions of the largest re-enlargement format and which is to be read back from the copy material, is the smallest possible and thus the copying performance at transport speeds of the copy material that can still be safely controlled is greater than with devices with other material guides. The management of the copy material in accordance with the innovation also enables copies to be output in operated

• «· ■

• ■ ■

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appropriate height. If the copy material passes evenly, they can still be used in a simple manner a minimal number of transport elements the smooth and trouble-free guidance of even thin and less rigid copy material guaranteed by the processing stations and thus exceptional To achieve operational reliability.

Due to the advantageous use of the electrophotographic In addition, the device according to the innovation possesses methods with liquid development an exceptionally low power requirement.

Functional sequence:

With the key switch 75 (Tip . 7) the pair of squeezing rollers 12 in the development section are brought into mutual adjustment and the main contactor is switched on, whereby the main drives of the device, the power supply of the electronics, the charging of the conveyor belts 9 and the developer circuit are switched on. The device is then free to enter commands and the negative can be inserted.

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When you press the ground glass button 7β, automatically triggered the following processes; Mirror 26 and aperture 27 of the ground glass 25 move into operating position, the projection lamp 16 moves into the position for ground glass projection, whereupon it lights up. That The picture appears on the screen and can, if necessary. adjusted. When the screen button 76 is pressed again, the projection lamp 16 goes out, and mirror 26 and diaphragm 27 and projection lamp ΐβ move back to their original position.

Now the desired number of copies 79, enlargement factor 77 and format 78 are entered, what could have happened before. You can see the following possible combinations:

1 .8th 2 8th 3 8th 4th 5 5 6th 7th .5 8th .4. 9 7.4 Magnifying
maintenance
factor 14th Ik. 14th 10 .5 10. 7.4 10 A2 7th A2 A3 format A2 A3 A4 A3 A4 A4

When one of the combinations 1 to 4 is selected, lights up

the horizontal arrow 87 in the front panel of the device

to j to indicate that the film carrier is in the

I - 25 -

Borrowed input of the filin punch cards envisaged wrapping • must be, if this is the case, iac the device for the

further process free. Otherwise the Gei-Ht remains

locked until the negative is in the appropriate position

} is rotated. If the combination 5 or 6 is selected, the vertical arrow 88 lights up, whereby the same applies. If you choose the combinations 7 to ¹ J , the symbol "Uberformat" 8ü- Das üeran appears. is locked. Once the permissible combination has been made, the following drives are switched on automatically: Drive for projection lamp adjustment, drive

for objective nosepiece head 20 and the drive rur dun 3
\ · Mirror 21. You will be on according to the area code

\ the shortest way to the prescribed position

drove. When it is reached, the green "i''rei" ~ appears

\ Character 8l. The machine is for the additional AL run

: ready.

By pressing the "Start" keyfc; 82 become the keys

: Door zoom factor and format locked. That

ί "Free" symbol disappears. Furthermore, the clutch

the Trans pox-tv.alze h controlled by the format selection and the double lifting magnet 64 of the pivoting roller 6 ~ j> are switched on in the direction determined by the format selection and the corresponding copying

material is drawn in. It also increases the corona tension switched on. When the material forwards the Kessers cha lter 66a, pre-selected by the choice of format. -Fig. 1-, whose operating lever In your way dex material web is reached, the format-appropriate knife cut takes place. At the same time, the double solenoid of the The swivel roller and the clutch of the transport roller are switched off. Hachdem the leading edge of the material through the Combination of enlargement factor and copy material size pre-selected picture stage switch 66b -Fig. 1-achieved has, whose operating lever also protrudes into the material web, tape transport and Corona voltage off and the exposure timer on, which in turn switches on the projection lamp for the duration of the set exposure time. The exposure timer controls with the end of the exposure time the copy counter 90 and solves the next one Copying off. The exposed copy is fed to the developing section, developed and discharged. After the last copy set on the copy number selector has been exposed, only a decade-wide export takes place these copies for developing, etc. After the entire process During the copying process, the locking of the control device is automatically canceled.

One ^! 'Stop' key 83 is to Untv-rbi-fcchuug d ^ a
Copying process provided, with a last initiated copying process still ^ .usgefühi-t. The umcx-üiu..ücüc process can be resumed with D ₁ α Lan of the "Start" key 82.

When the roll of copy material is at an end, the material is then radially to the roll core, the end of which is attached to the roll core, a
Associated web limit switch actuated £ i> is a corresponding optical message by lighting up the associated control lamps li ^J :. A Lögonnenex * copy process is still fully completed
then the device is locked. After insertion
new roll the material web acknowledgment switch - not shown - must be pressed to daa device
to get back to work.

Is the amount of developer in the reservoir used up to an adjustable Re3t, another control lamp 85 lights up in the front panels of the Device.

_s 2 To maintain the correct concentration of toner

can be a defined I by pressing the "Toner ^{11 key 86}

Amount of toner to be replenished.

When the main switch is switched off, the servomotor of the pair of squeezing rollers in the developer section is activated controlled so that the rollers move apart. Haeh. The main contactor is switched off when the end position is reached, and the device is out of order.

Claims (1)

Protection claims 1. Electrophotographic Microfilm The re-enlargement unit is equipped with a cooling and lighting device for the negative image, with lenses that can be swiveled into the beam path and Deflecting mirrors, with a ground glass for projection of the negative, with a mounting device for Supply rolls with take-off and cutting device, with an electrostatic charging device, an exposure, development and drying station and an output for the finished re-enlargements and with means for setting the enlargement factor, for preselecting format and Number of re-enlargements, to control the Copy paper print and for cutting the material web and for controlling the process of the electrophotographic Method steps, characterized by several, preferably three, one on top of the other in the focal lengths Matched lenses (19) that can be swiveled into the beam path, ί - 30 - that the via a ground glass (25) in terms of image content and position controllable image of the negative jnit fixed magnification factors on a device-fixed c Image plane takes place with approximately the same projection distance, by one for several, preferably two \ Material web guides (5, 59) provided cutting device (7) with self-sharpening knife (68, 69) f with variable cutting angle and backlash-free, reversible, non-releasable and elastic with the optical elements (16, 20, 21, 26, 27) coupled drives which can be switched on and off by means of Induktipnsschaltern (48) so that the optical elements by resilient locking pins (51) in adjustable positions _u are lockable. 2. Apparatus according to claim 1, characterized characterized in that the focal lengths of the lenses (19) and the projection distance in interaction with the Mirror (21, 22) can be selected so that magnification factors of 7i4, 10.5 and 1 ^ .8 can be set. 3. Device according to claims 1 and 2, characterized by an exposure timer whose set exposure time is automatically included 2 the choice of the enlargement factor in the ratio α: b 2 : c is toggled when the magnification factors behave like a: b: c. ^. Device according to claims 1 bia j>, marked by a ground glass (i £ 5) > to which via a-cs projection system that can be switched into the beam path (26, 23, 28, 29, 30) the negative image is correct and is projected the correct way round. 5 «device according to claims 1 LJ3 h, characterized in that the drives for adjusting the point light lens (l6), objeiktivi-cvul '/ <- r (20), the mirror (21, 26) and the diaphragm (2 () uu, ch each have a synchronous geared motor (^ 2) be driven with pei-ui magnet, the disconnection of the induction switch (^ 8) is controlled in such a way that the locking pin (51) falls into the locking steps (50) without kinetic energy in Vera te11 direction, and that a logic circuit makes the adjustment as short as possible Ways causes. · · »It · 6. Device according to claims 1 bia 5, characterized in that the take-off device (3) consists of a whale system ^ formed from the transport rollers ( ² O and the pivot roller (63), also from a material web guide assigned to the roller system at the smallest possible distance, formed from insertion slots (5) and the downhaicers (59) , and from pendularly arranged return elements (6), which immediately after the end of the cut by gravity or spring force, connected xuit the material return inhibition (65)> withdraw the material web (62) from the cutting device (7). 7 device according to claims 1 to 6, characterized in that the lead-in braid (5) and the continuously acting hold-down device (59) form a common component. 8. Device according to claims 1 to 7 » characterized in that the cutting device (7) is one on the base frame (67) with two different lengths Guide levers (70, 71) attached cutting knife (69) in connection with a on the Grundgeatell (67) on the dem shorter guide lever (70) attached to the side and resiliently against the cutting knife (69) pressed Messerlainelle (68) is provided, and that the cut on the side of the 3 shorter control lever (70) begins. 9 device according to claims 1 to 8, characterized by guiding the formats through cutting, Charging, exposure and development station (7 «8j 9j 10) in an approximately horizontal plane.