DE2411279A1 - MICRO IMAGE COPIER - Google Patents

Description

S 1528

PATENT LAWYERS

Dr. - Ing.HAMS RUiT ^ 'KE

Dipl.-ing. OL-, Γ FL- "C _: .KE 2411279

ι Β ΐ "Γί L · N :: a
Auguste-Viktoria-Siraße 65

Scott Paper Company, Industrial Highway at Tinicum Island Road, Delaware County / Pennsylvania (VoSt.v.A.)

Micro image copier

The invention relates generally to micrograph copiers and in particular a duplicating machine for making individual copies or several film copies of an original consisting of a sheet bearing micrographs

As a result of the ever increasing amount of documents that are currently kept in the form of microscopic copies, there is a need for a versatile copier for such purposes that has a simple structure, operates in a simple manner, requires very little maintenance and is automatically one or make multiple high quality copies.

So far, several various types of devices have been used to satisfy Developed this need which have achieved the intended purpose. However, the conventional micro image copying machines have various disadvantages that largely limited their use. In conventional such copiers, the originals must often be combined with the copy sheets,

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complicated devices must be provided for separating the copies from the original, and during copying the originals and the copy sheets are mechanically guided over complicated movement paths · you use known such Equipment is also limited to either tailored Sheets of copy film or on target film (in which case an extensive Waste of film occurs), and furthermore only one can Siazofilm or only a veeikularfilm are processed · They therefore generally have typical known micro-image copiers have a complicated structure, do not copy with sufficient accuracy and are not versatile enough so that they have not found widespread use in trade.

Therefore, there has long been a need for an automatic micrograph copier that meets the needs of users satisfied and consists of a self-contained unit that was previously not available.

Sas Mikrobildkopiergerat according to the invention has

a copy table, which is on a frame between an exposure station and a loading station reciprocable and a copy sheet folded with a sheet of original film wearing,

«A device that is used when the copy table is moved Exposure station aligns the copy sheet with the original,

one attached to said frame in the exposure station Device for exposing the copy sheet through the original,

means for developing the exposed copy sheet and

a device that removes the exposed copy sheet from the original separates and advances the copy sheet to the developing device.

The device according to the invention has the advantage over known devices that Hollfilm or film in the form of individual sheets, Siazo or vesicular films can be used that the Copy sheets are automatically aligned with the originals, that the originals are automatically separated from the copy sheets after exposure, that a minimum cetane number

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working components are used, and that the originals and copies are returned to the front of the machine.

The invention will now be described in detail in FIGS accompanying drawings is the

1 shows a diagrammatic representation of a preferred embodiment a micrograph copier according to the invention,

FIG. 2 is a front view of the copier shown in FIG. whereby certain components have been left out,

FIG. 3 is a representation of the right side of the one shown in FIG Copier, with certain parts omitted,

4 shows a rear view of the copier according to FIG certain components have been left out,

figo5 shows a representation of the left side of the copier of Fig. 1, with certain components being omitted,

Fig. 6 is a side view of the film feeding and cutting device of the device according to Fig. 1,

Fig.? a rear view of the device shown in FIG. 6,

Fig. 8 is a front view of the device shown in Fig. 6;

Fig. 9 is a plan view of the copier table assembly of the device according to Figure 1,

FIG. 10 is a front view of the arrangement shown in FIG.

11 is an illustration of the left side of the copy table arrangement according to Fig. 9,

Figure 12 is an illustration of the right side of the copier table assembly according to Fig. 9 »

13 shows a section along the line 13-13 in FIG. 9,

Figure 14 is a top plan view of the loading and unloading assembly of the device according to Fig. 1,

Figure _# 15 is a front view of the arrangement shown in FIG · 14

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FIG. 16 is a view of the left side of the exposure and emptying arrangement according to FIG. 14,

FIG. 17 is a right side view of that shown in FIG Arrangement,.

Fig. 18 is a plan view of the lamp and yeast reflector existing arrangement of the device shown in Figure 1,

Figo19 is a side view of the arrangement shown in Figo18,

Fig. 20 is a side view of the illustrated in Fig. 14 and exposure and are in a first setting Emptying arrangement,

Figo21 shows a representation of the arrangement in a similar to Fig.20 second shot,

22 shows a section through the exposure and emptying arrangement as well as by the development arrangement in the copier shown in FIG. 1,

Fig. 25 is a schematic representation of the sheet separation arrangement in a first shot,

FIG. 24 shows a representation of the sheet separating arrangement similar to FIG. 23 in a second shot,

Fig, 25 is a similar view of Figure 23 _e of Blattrennungsanordnung in a third setting,

FIG. 26 is a side view of the development assembly in the embodiment shown in FIG Fig. 1 illustrated copier,

27 shows a partly as a section along the line 27-27 in FIG Fig. 26 drawn representation,

FIG. 28 is a section through the developer belt subassembly of FIG in the development device shown in Fig. 26,

29 shows an illustration of the liquid metering device in the copier shown in FIG. 1 in a first setting,

Fig.30 is a similar view of Figure 29 _o the metering device in a second setting,

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FIG. 31 shows a representation of the dosing device similar to FIG. 29 in a third setting and the

Figc32 is a side view of the dosing device shown in Pig. 29

The micro image copying device shown in Fig _s 1 illustrates a preferred embodiment and is located in a designated as a whole with 10 housing with a base 12 in the form of a resting on the feet 14 housing. On the base 12 rests a main housing 16, which is divided into a reproduction department 18 and a control and supply department 20. The main reproduction device of the copier is arranged in the reproduction department 18 and is provided with the removable covers 22 and 24. The cover 24 is designed in such a way that the copy table arrangement 26 is exposed for the reproduction device still to be described, so that an original is placed on the copy table at the beginning of a work sequence can be. The rest of the reproduction equipment is covered so that the device has a pleasing appearance that corresponds to an office equipment.

At the front of the tax and supply department 20 a main switchboard 28 is arranged, on which the mode of operation and the sequence of operations of the device can be set · How Will be described later, all switching elements are arranged on the main switchboard 28 with the exception of a single multiple selector switch and a diazo vesicular selector switch, which two switches are provided in a film supply district located in department 20, which department is from one Door 30 is locked ·.

Before the individual devices and components of the device should be described in detail, the mode of operation of the device should be briefly described

The copier is put into operation by pressing the relevant switch on the control panel 28, the device for the use is prepared. This operating state is indicated by the lighting of a lamp on the control panel 28, after which a user of the device on an original; put the copy table

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After the photomicrograph original 32 has been placed in approximately the correct position for reproduction, a power switch on the control panel 28 is actuated with the result that a predetermined length of copy film is advanced from a supply roll located in the housing behind the platen 30. After a predetermined length of film is peeled from the supply roll, the copy sheet is cut and falls onto the original copy on the copy table 26.

The copier table arrangement 26 is then automatically viewed set in motion towards the rear of the machine, bringing the original exactly into line with the copy sheet. When the copy table 26 is moved backwards, the copy sheet is exposed through the original. If continued the movement of the copy table backwards, the copy sheet is automatically separated from the template or from the original and sets continues its movement beyond the exposure station into a development chamber. When the copy sheet moves through the developing chamber moved, the original is moved to the front with a rapid forward movement of the copy table into the loading position Part of the copier returned

The development chamber is generally U-shaped so that the copy sheet in sight of the development chamber the front part of the device. The copy sheet then travels through a clearing station, which is only available when using vesicular films is put into operation, and for transport purposes only when using Diazo films in a passive operating state is moved. The copy sheet then moves into a collecting tray $ 4, which is below the loading station of the copy table is located, with which the work sequence is ended. Should from one If several copies are made from the original, the procedure described above is carried out again by pressing the relevant switch on the control panel 28, with each Reciprocating the copy table between the loading and exposure stations through the more than one copy sheet Facility is conveyed · As will be described later, with the device according to the invention besides the production of single or multiple copies of a diazo or a vesicular film

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-7- 2A11 279

can be used * where the diazofilm »with an aqueous or anhydrous developing agent takes place.

The film feeding and removal devices

As can be seen from FIGS. 2 and 5-8, this is made possible the door 30 of the control and utility department 20 gives access to an area 36 in which a coil 40 with a suitable Copy film 38 is freely rotatably mounted on a horizontal shaft 42 which is attached to a frame member (not shown) in the rear part of the region 36. As later will be described in detail, the film 38 may be made from a diazo film or consist of a vesicular film with a width corresponding to the width of the gate layer to be copied. The end of the Film supply spool 38 is carried by a film transport device 44 passed a cutting device 44 to an area above the copy table 26. The film can therefore transported from the roll 38 from the assembly 44 and are then cut off by the cutting device 46, so that the copy film section is reasonably accurate on the original which is located on the copy table 26. As can be seen from Figures 1 and 2, the cover 24 of the reproduction department 18 can be provided with an elongated rectangular lip which the cutting assembly 46 for the sake of Security and pleasing appearance.

The film transport and cutting devices 44 and 46 shown in detail in FIGS. 6, 7 and 8 have one generally U-shaped frame 50 on which a Ämmessungsrolle 52 made of a suitable non-compressible material such as Steel or aluminum is rotatably mounted, the shaft of which extends through the rear wall of the frame 50 and in a gear 54 ends. A second roller 56 made of an elastic and compressible material, such as rubber, is supported so that its shaft is parallel to the shaft of roller 52. The left one End (according to Figure 6) of the shaft of the roller 56 is rotatably mounted in the forked end of a connecting member 58 (Figure 7), the via a rotatable rod 60 having a generally L-shaped member 62 is connected, the first leg of which is located at the distant

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End is forked and the right end (Pig.8) of the wave of hell 56 carries. The second leg of the L-shaped member 62 is designed at the distal end with a flat spring bearing plate 64, which cooperates with a compression spring 66 and with a bolt 68 which is screwed into a threaded hole on the frame 50 is, so that the link 62 is acted upon in the counterclockwise direction (FIG. 8) and the boll 56 lies firmly against the roller 52 holds which two rollers catch the end of film 38.

The left end of the shaft of roller 56 carries a gear 70 which meshes with gear 54 on shaft 52 so that both rollers are rotated during film transport. The right end of the shaft of the roll 56 extends through the front wall of the frame 50 and carries a suitable button 72 by means of which the film can be transported from the roll 38 carries a crouching member 78 (Figure 8) which cooperates with the first leg of the L-shaped member 62 such that when the knob 74 is set in the position shown, the L-shaped member 62 is released with the result that the roller 56 of the spring 66 is pressed firmly against the roller 52. If the knob 74 is generally rotated counterclockwise over an arc of approximately 180 °, a projection 80 on the edge of the cam disk 78 acts on the underside of the L-shaped member 62 and pivots the member against the force of the spring 66 in a clockwise direction. This removes the roller 56 from the roller 32 , releasing the copy film and allowing the end of a new film to be inserted.

Except for the sizing and transport rollers 52 and 56 is on Frame 50 has a guide means in the form of a generally flat plate 82 with a downwardly curving leading edge and with lateral ones and upstanding front and rear flanges attached to the end of the film spool 38 in the film transport and cutter To guide · At a short distance behind rollers 52 and 56 is an exit guide plate 84 with a generally L-shaped (cross-section and with two laterally protruding and downwardly inclined guide tongues 86 and 88 attached to the lower corners of the frame, which guide the film after the

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When leaving the rollers 52 and 56, keep them centered »

On the frame 50, a drive motor 90 is mounted, the Shaft 92 extends from the front and rear of the motor in the longitudinal extension of the device. At the front end of the Shaft 92 is a cooling valve at or 94- attached, while the rear The end of the shaft 92 is connected to a suitable gear 96 for driving the film transport device The output shaft 98 of the transmission 96 carries at the rear end a generally circular cam disk 100 with a nook 102, as can be seen from Figo7 · on the cam disk 100 is a generally rectangular drive block 104- attached to the is connected to a drive chain 108 via a connection block 106 mounted close to the edge of the disk 100. the Chain 108 is guided around one gearwheel of a double gearwheel arrangement 110, the larger gearwheel of which with gearwheel 54- of Roller 52 combs · The chain 108 is at the opposite end with it connected to the frame of the copier by a spring 112, which the chain during the operation of the film transport device 44 keeps tense at all times.

As can be seen from FIG. 7, block 104 wanders through with the drive of the disk 100 by the motor 90 a 360 ° comprehensive path with the result that the chain 108 during the first 180 ° and then released again, so that it assumes the rest position shown. With this tightening of the chain 108 becomes the gear assembly 110 counterclockwise rotated and with it the rollers 52 and 56, whereby a predetermined length of the film is drawn off from the film roll 38 · The gears 54 and 70 are connected to the respective rollers 52 and 56 are connected via a suitable one-way clutch that allows the rollers to rotate in only one sense, so that the Film end of the film roll 38 transported by the gear assembly 110 will. Although the gears 54 and 70 in both directions of rotation are freely rotatable, the clutches in question allow the associated rollers to rotate only in the transport direction of the film too. An additional coupling 113 arranged at the opposite end of the roller 52 prevents it from turning back of the roles while the second encompassing 180 °

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Rotation of the cam 100a

As can be seen from Figures 6 and 7, the taps are on 50 a first and a second microswitch 114, 116 attached so that that their contact arms 118 and 120 slide along the belt of the cam disk 100. As will be described later, The microswitch 114 turns off the motor 90 when its actuating arm 118 slides up onto the bracket 102. After turning on of the motor 90, the cam disk 100 executes a single 360 ° rotation and comes to that shown in FIG Rotational position to a standstill when the nooke 102 acts on the arm 118 of the switch 114. When the cam disc 100 makes its only revolution, the Nooke 102 actuates briefly the microswitch 116 via its arm 120 for registering a count corresponding to the transport of a single sheet of copy film. The film transport device 44 therefore effects the precise transport of a predetermined longitudinal copy film from the film roll 38, carries out a count and arrives in the in the position shown Figβ7 to standstill after a single sheet of copy film has been transported.

The cutting device 46, which is also attached to the frame 50, has a main cutting blade in the form of a flat plate 130 with a beveled lower edge 132, which cooperates with a stationary cutting rail 134 on the frame 50 The plate 130 is attached to a carrier plate 136, which at the upper end is pivotably mounted in the forked part of an arm 138 of a generally L-shaped drive member 140. The L-shaped member 140 is rotatably supported on a ¹ WeIIe 141, which extends in the longitudinal extent of the copying machine and is attached to the upright arms of the frame 50, as shown in Figure 6 · The support plate 136 is with respect to the arm 138 acted upon by two compression springs 142, which sit in recesses on the top of the plate 136 and on a spring bearing rod 144 which is attached to the arm 138 · In this way, the cutting blade 130 is pressed against the cutting surface of the blade 134, so that when there is a displacement the plate 136 down

cut a copy sheet of the desired dimensions from the end of the film will"

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The second arm 146 of the L-shaped member 140 carries a roller bearing 148, which rests on a generally elliptical cam disk 150, which is also on the shaft 98 of the transmission 96 is attached and driven by the motor 90. On the upper part of frame 50 and at the distal end of arm 138 of the L-shaped link 140 has two tension springs 152 and 154 attached, trying to pull the link 140 upwards, thereby pulling the cutting blade 130 back from the rail 134, so that the Roller bearing 148 is held in contact with the edge of the cam disk 150 while the film is being fed and cut will"

When the motor 90 is turned on, the shaft 98 drives the cam and cam discs 100 and 150, the end of the film being passed between the rollers 52 and 56, after which the member 140 is rotated and the cutting blade 13o is guided down against the cutting plate 134 and a dismounted As already stated, the film transport device 44 and the cutting device 46 are in a state of operational readiness at the end of a single film transport, so that every n ^^ ih} of desired copies can be made if the copier continues to operate will.

You device for aligning the copy table and

of the film

As shown in Figures 9-13. is seen, the copy table assembly an ultraviolet radiation transmissive plate 26 made of a suitable material such as treated or coated Glass, through which an ultraviolet radiation from a radiation source arranged in the copier is incident on the Plate 26 lying original and copy sheet can fall. The plate 26 should as much as possible be unwanted radiation from the radiation source as well as filtering out heat to prevent damage or disintegration of the film sheets during to avoid copying · The plate 26 is inserted into an opening 200 which is of a generally rectangular shape Copier table body 202 is formed, its on the left side

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downwardly projecting flange 204 carries two roller bearings 206 and 208 at intervals. This roller bearing resting on an elongated guide rail 210 (Fig, 15), which is attached to a to-be "descriptive frame member · The guide rail 210 may be made of any suitable design existence and preferably has a square cross-section, as shown in FIG _o i5 · An The lower edge of the side flange 204 (Figure 11) also has a microswitch operating rod 212 attached with two lugs 214 and 216 at the ends.

On the right side of the copy table 202, two linear bearings 218 and 220 are attached, which can slide on a spindle 222 are stored, which is attached to the frame of the copier housing and extends horizontally, as shown in Fig. 15 «Am The upper portion of the copier housing 202 is generally L-shaped left-hand stop member 224 and a suitable clamping plate 226 attached. Furthermore, on the copier table housing 202 is a Leading edge stop assembly 236 with two parallel arms 228 and 230 attached to one end of the copy table to the Points 232 and 234 are pivotably attached, and those at the other ends on an adjustable support plate 238 as well are mounted so that they can be swiveled. The plate 238 carries a compressible one Support, e.g. made of plastic foam or a rubber compound 240 with a thin, semi-rigid plastic sheet 242 at the top. The edge of the plastic film 242 which is closest to the copier table top 26 protrudes over the compressible Advance element 240 approximately 3.2 mm in front so that the leading edge of an original is under the plastic film on top '242 can be applied to the front of the element 240. This arrangement is shown in FIGS. 23, 24 and 25. A compression spring 239 arranged between the copier table housing 202 and the slotted right end of the carrier plate 238 presses the plate 238 against the end of a screw 241, which can be turned by means of a knob 243 for adjustment. on in this way the longitudinal position of the assembly 236 with respect to the copy table 26 can be adjusted, with that of the arms 228 and 230 and the parallelogram formed by the plate 238 is pivoted in the plane of the copier table housing 202

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To enable the placing of an original on the copier table 26, two front stop members 244, 246 are each two spaced upright tabs attached to a rotatable shaft 248 attached to the copy table assembly below the Copier table housing 202 is mounted. The shaft 246 extends through the side flange 204 and terminates in a rectangular one Arm 250, which cooperates with a spring 252 that the Seeks to rotate shaft 248 so that the stop members 244, be guided into the upright position, as shown in Fig. 1 · Between the upright tongues on stop members 244 and 246 are inclined retaining members and 256 arranged, respectively, in grooves 258. 260 on the copier housing 202 sit. Moves the copier table housing 202 in a straight line to the rear part of the copier, so causes Contact with the upper end of arm 250 rotates shaft 248 and retracts stop members 244 and 246 in two recesses on the housing surface. At the same time, the restraint members 254 and 256 move back and down into the tree pivoted between the tongues of the stop members so that both front stop assemblies are withdrawn and with align with the surface of the housing 202 "

With the front part of the copy table housing 202 is an elongated lever 262 is connected with a generally L-shaped cross-section at each end by the members 264 (FIG _o 13) and 266 (Figο12) which are pivotally mounted on the underside of the copy table housing 202 "How 13, the link 264 located on the left side (FIG. 9) of the lever 262 is pivotably mounted at the point 268 and is connected to a triangular link 274 via an arm 270 and a pin 272, which is rotatably mounted on the pin 276. A spring 278 seeks to move the link 274 into the position shown in FIG. 13, which link has a slot 280 which receives the pin 272 of the arm 270. The apex of link 274 is articulated with a rectangular connecting link 282 which is provided with a slot 284 which receives the pin 286 of a generally triangular eccentric arm 288 which is attached to the shaft 248 of the stop members

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244 and 246 is attached · The rest position shown in Fig. 13 of the eccentric member 288 can with the help of a small screw 290 can be adjusted, which is passed through the copy table housing 202.

Is in operation of the copier, for example, of the Hand of an operator exerted a downward pressure on the lever 262, the member 264 is about the pivot point 268 in the Clockwise counterclockwise «. This rotation of the link 264 is transmitted to the triangular link 274, so that this link rotates clockwise about pivot 276 · Link 282 is therefore moved backward and rotates the eccentric member 288 and thus the shaft 248 in the opposite direction, with the result that the stop members 244 and 246 can be withdrawn as already described depress lever 262 to cause said members to rotate shaft 248 and stop members 244 and 246 so that an original can be inserted with its leading edge resting on the compressible member 240 rests under the protruding leading edge of the plastic film 242. After releasing the lever 262, the stop links return 244 and 246 to the upright position so that the original is properly aligned on the copy table body 202. If an original is placed by a user on the plate 26 against the left stationary stop 224, then this is effected the copier according to the invention automatically an inevitable lateral alignment of the original with the help of two laterally movable right-hand stop members 292 and 294.

As can be seen from Figures 12 and 15, the Stop members 292 and 294 from the top of a generally Z-shaped curved plate 296 from, in the center of which an elongated Collar 298 is attached, which is mounted rotatably about a shaft JOO, which is attached to the copy table housing 202 is. A spring element 302 searches for the plate 296 according to FIG. 15 counterclockwise · to pivot, the stop members 292 and 294 in an upright position against two recesses

gene

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304 and 306 on the copy table top 26 are moved a roller 308 is mounted, which cooperates with a straight rail 310, the member 296 rotates and thereby a movement of the stop members 292 and 294 with respect to the stationary one on the left Stop 224 causes the copy table assembly to move along its rectilinear path of travel. As shown in Fig. 17 As can be seen, the rail 310 has a generally flat side 312 and a flat lower side 314 so that the Stop members 292 and 294 are held away from the left stop member 224 and approach the stop member 224 when the bolt 308 moves along the rail 310 into the recess 314

On the right side of the copier table housing 202, a rack 320 is attached, which meshes with a gear 322, the is driven by a reversible direct current motor 326 via a butsch coupling 324. The motor 326 is on a plate 328 attached to the exposure device to be described when the DC motor 326 rotates the gear 322, so the copy table assembly is reciprocated on the roller bearings 206, 208 and on the slide bearings 218, 220 in a straight line.

After placing an original on the copied! Sch, wie described above, a preselected length of copy file is made from the Gate directions 44 and 46 and falls onto the copier table housing 202 above the original. After switching on the DC motor 326, the copier table arrangement is straight to the rear Moved part of the copier, wherein the roller 308 falls when running over the rail 310 in the recess 314 with the As a result, the stop members 292 and 294 are rotated in the direction of the stationary left stop member 224, wherein the The original and the copy sheet are moved against the stop member 224 and are precisely aligned laterally. As later is described, the roller bearing 308 slides after traversing the recess 314 on the rail 310 up on the surface 312, the stop members 292 and 224 being retracted from the exposure roller to be described when the copy table assembly her backward movement continues · One at the left

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2Λ11279

Side of the frame of the exposure device attached rectangular Actuator 330 works with arm 250 of shaft 248 together so that the actuator 330 is detected and rotated as the copy table moves through the finishing station, with the upstanding stop members 244, 246 retracted so that damage to the exposure device is avoided when the copy table is moving backwards executes

A flat guide plate 332 and a linear actuator 334 are also attached to the copier table housing 202, which runs along the left edge of the housing 202 and has the same configuration as the linear actuator 310 The actuating member 334 has a flat main actuating surface 336 with a cutout 333, which is connected to the ball bearing of a Copier sheet tilting device cooperates, which later · In addition, is the front edge portion of the copy table body 202 bevelled on the surface 340 (FIG. 12) close to the guide plate 332 and acts with a soft pressure roller on the return of the copy table assembly during a duplication.

The exposure and clearance device

The exposure and clearing device of the copier according to the invention is shown in Figures 5 and 14 to 17 and has a frame with a base plate 393 and two of these fixed side plates 400 and 402, which run parallel to one another at a distance. Both side plates 400 and 402 are rectangular in shape and each provided with two approaches 404-406 and 408-410, which come from an upper rear corner protruding from perpendicular · On the frame plate 400 is a guide rail 210 fastened horizontally, as shown in Fig. 15, equal to the rod 222 for the linear bearings 218 and 220 · As from Figures 15 and 17 is on the side panel the motor 326 for driving the copy table device is fixed by means of screws, for example. At the approaches 406 and 410 of the Side plates 400 and 402 a flat rectangular plate 412 is attached between these, which the frame the required

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Gives stiffness.

On a transversely between the plates 400 and 402 extending shaft 416 is made of solid or foam rubber soft roller 414 freely rotatably supported _s gelaggt with the upper surface of the copying table housing 202 in contact when the housing from the motor 326 moves to the rear part of the copier with the original being held tightly against the copy sheet and the top of the copy table 26 as it moves. A copy film brake arrangement cooperates with the soft sleeve 414, which has a generally curved support member 418 which is frictionally on the hub of the roller 414 of two spaced leg members 420 and 422 is held. A stop member 424 protruding from the inside of the flange 406 of the frame side plate 400 cooperates with a recess 426 on the leg member 422 and limits the rotational movement of the braking cover 418c, as can be seen from FIG. 15, are at the lower front corners of the member 418 two thin rectangular rubber strips 428 and 430, which cooperate with the copy table assembly and with the soft roller 414, grip the leading edge of a copy sheet and have a braking effect, whereby the copy sheet is pushed against the stop members 244 and 246, so that the copy sheet is precisely aligned in the longitudinal direction to the Progonal when the copier table assembly moves to the rear! part of the copier.In the center of the front of the member 418 a protruding rabbit 432 is provided, which acts under slight pressure on the exposed side of the copy sheet and corrects improper alignment, ie e can be the result of a curvature in the original or in the sheet of Kapierfilm ©

When the copy table housing 202 with the original and the copy film sheet is in the rear part of the copier begins to move, the inclined front surface 340 of the copy table body comes with the periphery of the soft pinch roller 414 in contact and rotates it when the copy table continues to move forward. Since the cover member 418 "by friction is in communication with the hub of the pressure roller 414, the initial rotation of the roller due to the movement of the

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Copy table housing the cover member according to FIG. 16 clockwise rotated, the brake members made of rubber 428 and 430 pivoted downward against the top of the copy table will. At the same time, the protruding cheese 432 sinks Plate 418 on the center of the advancing. The original and the sheet of copy film, thereby smoothing the sheets and presses this against the top of the plate 26.

If the backward movement of the The copier table assembly abuts the stop 424 against the rear edge of the recess 426 and prevents further rotation of the Plate 418 when the pressure roller 414 is removed from the copier table housing 202 continues to move. The braking members 428 and 430 then act on the leading edge of the sheet of copy film and slide this against the stop members 246 and 244, so that with certainty an exact alignment of the copy film sheet with the original on the copy table takes place «During the further forward movement of the copy table assembly, the original along with the copy film sheet aligned thereon is placed under the pressure roller 414, which holds the sheets tightly against the top of the plate 26, whereby the copy film sheet is exposed, as will be described later

On one between plates 400 and 402 of an exposure frame assembly journaled shaft 452 is generally triangular and plane copy sheet receiving plate 450 with the rear edge attached. The apex of the triangular plate 450 is therefore located in the middle with respect to the copy table assembly and on directed the front part of the copier, as shown in Fig.14 · At the distal end of a connecting arm 456 a ball bearing 454 is attached, while the nearby one End on the left side of the receiving plate 450 as shown in Fig. 15 is attached «The Hollenlager 454 acts with a straight actuator 334 together, which is attached to the copier table housing 2o2 and the vertex of the triangular receiving plate 450 something lifts off the top of the copy table until the leading edge of the sheet of copy film has cleared the pressure roller 414. Thereafter The roller bearing 454 falls into the recess 338 on the actuating member 334, so that the apex of the receiving plate · 450

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the top of the thin plastic film 242, which the Exempressible and spongy element 24-0 covered Sa the leading edge of the original below the protruding edge of the plastic sheet 242 on which the copy film sheet is inserted rests, the apex of the receiving plate 450 causes a Compress the element- 240 so that the receiving plate can slide under the leading edge of the copy film sheet and lift off when the copy film sheet is moved when the movement is stopped the copy arrangement is further advanced. If that Roller bearing 454 slides out of recess 338 and onto the Surface 536 of the actuator slides, the apex of the receiving plate 450 is raised above the top of the copy table, wherein the copy film sheet is lifted from the original with the result that the two sheets inevitably from each other be separated when the copy table body 202 rearward sum Moving part of the copier.

After the copy film sheet has been separated from the original, the exposed copy film sheet migrates, as already stated to a development station while the original on the copier table is returned to the front rope of the copier will. To prevent the original from creasing when the copy table assembly is returned to the front, what damage could be caused e.g. by a fold or a curvature in the original is at the bottom of the triangular receiving plate 450 slightly below the shaft 452 and parallel to this an elongated and rod-like retaining roller 458 pivotally mounted, keeping the original in a generally flat position on top of the copy table holds. When the copy table carriage returns to the home position, roller 458 ensures that the original is unobstructed slides under the soft pressure roller 414 without being damaged

Between the frame plates 400 and 402 one is old as Gansee 470 and extending transversely to the copier exposure lamp arrangement which has a generally planar and rectangular base plate 472 that is slidable in grooves 474 and 476 is mounted on two transverse mounting members

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4-78, 480 are provided between plates 400 and 402. At the Base plate 472 is a generally L-shaped flange. 482 attached and carries a screw 484- which screws into a mounting member 486 attached to the panel. The exposure lamp assembly 4-70 can therefore either be removed or at the point of use directly below the soft pressure roller 4-14- can be attached by sliding the base plate 472 in the hats 474 and 4-76, after which the screw 484- into the mounting link 486 is screwed in · In the middle of the base plate 4-72 there is a rectangular opening above which a translucent Heat filter element 487 is arranged, which can consist of any already known material

As can be seen from FIGS. 18 and 19, the exposure arrangement 4-70 still have two upright side flanges 488 and 4-90, the front and rear upright ones sit Flanges 492 and 494 are connected and a generally rectangular one and form a box-shaped assembly fixed on the base plate 472. They are side flanges 488 and 490 each with a generally rectangular lamp mounting plate 496 respectively. 498, which plates form a slot 500-502 through which the ends of an elongated and tubular ultraviolet lamp 504 accommodates · The lamp 504 can be of any suitable design but preferably a 1000 watt ultraviolet mercury vapor lamp with isolated connection contacts 506 and 508, which are used in butene 500 and 502 on mounting members 496 and 498. They power the lamp can be made from a (not shown) power source via plug connections on the exposure and treeing device frame and cooperate with two plugs 510 which are arranged on the front flange 492, as in FIG. 18 Each of the two connectors 510 is connected to the wire conductors 516 and 518 via an insulator 512-514, which originate from the insulators 506 and 508 of the lamp.

Below lamp 504 is a generally parabolic and elongated one Reflector arranged with a first polished reflector element 530, which e.g. by means of screws at the upper end on a Lip 532 attached 1st to the top edge of the flange

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is provided. A second polished reflector element 534 is by means of a joint 536 and suitable screws on one Lip 538 attached to the top edge of flange 492 is provided. The reflector element 534- is at the bottom Edge (according to Figo18) over a tenon with a generally L-shaped Link 540 in connection, the shorter arm of which is connected to the flange 492 by means of a tension spring 542. By means of a mounting member 546, an electromagnet 544 is attached to the flange 492, the immersion anchor 548 with the knee of the Ii-shaped link 540 is hingedly connected. Of the Winding of the electromagnet, a control signal is fed via two plug contacts 550, which are connected to corresponding couplings cooperate (not shown), which are attached to the frame of the exposure assembly «, receives the electromagnet 544 current, in this way the plunger 548 is withdrawn and the reflector element 544 is pivoted from the lamp via the connecting member 540 504 so that the ultraviolet radiation through the heat filter 487 can irradiate the top of an endless conveyor belt 570 through it.

The conveyor belt 570 runs horizontally at a distance between two standing rollers 572 and 574, which run transversely between the plates 400 and 402 and are rotatably mounted in the plates At the inner end of the roller 572, a gear 576 is attached, which cooperates with a motor drive, such as will be described later · The conveyor belt 570 can consist of any suitable material can be made, for example from rubber impregnated with fiberglass, and is in the desired lateral Position held by two inclined rollers 578 and 580 which are pivotally attached to angled mounting members 582 and 584 and rest on the inside of the conveyor belt 570 below the rollers 572 and 574, as shown in FIG.

Between frame members 400 and 402 is above the exposure lamp assembly 470 is generally inverted U-shaped Collimator bearing shell 590 slidably mounted in which a suitable honeycomb-shaped collimator between the ultraviolet lamp and the pressure roller 414 is attached. The collimator 592 can by moving the scarf * 590 lengthways out of the working position

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from the working position between lamp 504 and roller 414 removed.

The lamp assembly 470 is to the side of the lighting and evacuation device an exhaust chimney 594 having a generally rectangular cross-section attached to the lamp assembly with openings for discharging the heated air from the environment of the Lamp is provided · The exhaust duct 594 stands over a circular one Connector 596 with a hose 598 in connection, which in turn is connected to a fan to be described is. Furthermore, two openings 600 and 602 provided on the plate 402 stand above a first and a second air hose associated with a fan to be described which supplies cooling air to the conveyor belt 570 and the copy table assembly 202.

On two L-shaped ones and on plate 400 of the exposure frame assembly attached mounting members 610, 612, two microswitches 604 and 608 are attached so that their actuating arms protrude through openings in the plate and are actuated by lugs 214 and 216 on the flange 204 of the copier table assembly can, as shown in FIG. 11.

The developing device

In FIGS. 5 and 28-28, the exposure chamber of the copier according to FIG. 1 is shown generally at 700 and comprises a generally U-shaped housing 702 with a base 704 and two upper and lower leg parts 706, 708. The development chamber 702 is attached to the frame of the copier on two spaced feet 710 and 712 so that the upper and lower leg parts 706 and 708 are located horizontally one above the other, as shown in FIG. In the middle of the bottom of the lower leg portion 708 is general rectangular, open-topped and developing agent receiving tray 714- attached so that the interior of the tray 714- inside the chamber 702 is in communication therewith through an opening 716 stands. A thermal switch is located on a side wall of the shell 714- 718 attached to determine the temperature, which Thermal switch supplies control signals to the control network of the facility via conductors 720. In an opening 726 at the bottom of the

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Shell 7 * 14 is connected to the control network via conductor 724 standing heating element 722 used, which the shell on at an elevated temperature. With the shell 714 is also a supply line for an anhydrous developing agent 728 and a water supply line 730 in connection «

The rear of the chamber 702 is open to receive a developing belt drive assembly to be described and is closed by a rectangular cover plate 731, which is fastened to the chamber walls by means of screws (not shown) «As can be seen from FIG Cover plate 731 on the inside a flat and rectangular stimulus pad element 732, which the interior of the development chamber keeps at a substantially uniformly elevated temperature * The heating element 732 is supplied with current during a copying process via the conductors 734.As can be seen from FIG. extends from the inside of the cover 730 on its left side, a thermal switch 736 in the form of an elongated Tube into the chamber and is connected to the control network via the conductor 738

Aa front part of the upper leg 706 of the development chamber a generally flat guide plate 740 is arranged laterally, the within two spaced elongated guides 739 and 741 of two side support plates 742 and 744 is worn on both sides of the leg 706 Exit · The guides 739 and 741 are generally rectangular in shape Cross-section and are positioned laterally between the plates 742 and 744 to prevent the loss of a copy sheet if the sheet is between the 746-748 Roll Sets and 752-754 moved between side plates 742 and 744 a. first set of parallel guides 746, ^ 748 perpendicular to arranged to each other, which run across the front end of the leg 706 away. Rollers 746 and 748 catch the advancing Copy film sheet and convey the sheet into the development chamber 702 at an enclosed entry port 730

The closed opening 730 of the leg 706 is of a second pair of guide rollers 752 and 754 are formed in

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are arranged in the same way as the bolts 746 and 748 and a. Form a seal · Two generally rectangular, flat sealing elements 756 and 758 made of a suitable material such as made of fiberglass impregnated rubber are attached to the upper and lower front edges of the leg 706 with the help of plates 760, 762 attached so that the seals touch the front sides of the bolts 752 and 754 and the entrance seal completely against leg 705, but allow the movement of a copy file into the chamber Shafts of the bells 754 and 748 are the sprockets 764- and 766, which together with an endless drive chain 768- * act, which drives both bolt sets 746-748 and 752-754.

The drive chain 768 is wrapped around the gears 764 and 768 as well as a group of tensioning gears 770 and 772, the attached to the left side of the base part 704 of the Ka inner 702 are, as shown in FIGS. 26 and 27, »The gear wheel 772 is adjustably mounted in a slot 774 and should be one Take up slack in the chain when such slack occurs. The chain 768 is also led around a gear 776, that on the shaft of a first bolt 778 of a pair of bolts 778-780 of a closed outlet opening 782 at the front End of the lower leg 708 is attached. The exit assembly 782 is configured in the same manner as that above described closed port opening 750 and has two rectangular and planar sealing members 782 and 784 which are attached to the leg 708 bit using the plates 786 and 788 and which lie tangentially on the front of the bells 778 and 780 and close the exit opening of the leg 708, however, allow a developed sheet of copy film to pass through.

At an outwardly protruding right end of the shaft of the bolt 778 (Fig, 27), a gear 790 is attached, the bit meshes with a drive gear 792 of a drive motor 794. The drive motor 794 is attached to the foot 712 of the development chamber 704 and sets the bolt 778 in Rotation and thus the chain 768 in motion, which in turn drives the bolts described above. Eb should also be noted that the gear 792 with the

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Gear 572 of the conveyor 570 (Fig.17) meshes with the conveyor drives * On the shaft of the roller 778 a second gear 796 is also attached, which inside the leg 708 is located in a generally rectangular recess 798. Gear 796 works with an additional gear on a development belt drive assembly together, which is designated as a whole by 800 in FIG.

The development belt drive assembly 800 includes first and second, like side plates 802 and 804, which are generally Are U-shaped, and between which a number of rollers 806, 808, 810, 812, 814 and 816 parallel to each other and which carry an endless belt 818 which moves over a generally U-shaped path of travel, as in FIG Figβ28 shown. The band 818 can be made of any suitable material consist, but preferably of rubber impregnated with glass fibers, which material under the action of heat its dimensions not changed. A second endless belt is within belt 818 via a U-shaped path of travel a second set of parallel rollers 822, 824, 826 and 828 shown which roles interact with roles 814 and 816, As shown · The belt 820 is made of a suitable and refractory porous material, such as heat treated Cotton. Two horizontally arranged and inclined rollers 830 and 832 are mounted on mounting members 834 and 836 which are attached to attached to side plates 802 and 804 of development belt assembly 800. The rollers 830 and 832 cooperate and hold the tapes in a centered position as they run through the chamber.

A thermally conductive rectangular block 838 is arranged transversely between the end plates 802 and 804, which is connected to a first Opening 840 for receiving a cylindrical thermal switch 842 (Figo26) and with a second, somewhat larger opening 844 is provided for receiving a cylindrical heating element 836 which maintains the block 838 at a higher temperature than the temperature the chamber cover 730 created by the heating element 732. As can be seen from Fig. 26, the thermos holder protrudes 842 and the heating element 846 through the chamber walls of the upper leg part 706 and into the openings 840 and

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_ 26 -

of block 838 after the. Development belt assembly has been built into chamber 702. Elements 842 and 846 are in communication with the control network via conductors 848 and 850. At the end of the shaft of the should 812 a gear 852 is attached, which with the gear 796 (Figo27) of the development chamber 702 meshes and causes belts 818 and 820 to advance through the chamber. Belts 818 and 820 become both driven via the shaft of the roller 812 by the cooperation of two gears (not shown) attached to the upper Ends of the shafts of rollers 828 and 812 are attached, as shown in Figο28.

As can also be seen from FIG. 28, a Insertion opening 750 of the chamber 702 copy film sheet inserted trapped between belts 818 and 820 as they pass over rollers 806 and 822 and between the belts guided over the illustrated U-shaped trajectory. Since during development the interior of the chamber 702 on an increased Temperature is maintained, the heat resistance of the belt 818 prevents excessive pressure on the copy sheet is applied as the copy sheet is advanced between the interleaved belts of the development belt assembly 800. Simultaneously The porosity of the belt 820 allows the copy sheet to be completely exposed to the developer in the chamber 702 and is rapidly developed as it passes through the development station.

Although in the copier according to the invention with the same Effectiveness an aqueous or anhydrous developing agent can be used, however, as will be explained later is, in the preferred embodiment, the use of anhydrous ammonia from a pressure reservoir 900 (Fig * 3 and 4) provided in a collar 902 at the bottom of the Housing 12 is used »The container 900 becomes ammonia gas passed through a pipe 904 to a T-fitting 906 and from there to a pressure relief valve 908 and to a pressure regulator 910. The pressure regulator 910 determines the pressure of the ammonia gas and directs the gas through an electromagnetically actuated valve 912 with two electrical conductors 914 to a conventional one

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Grass Dosing Device 916 · The output of this device communicates with the gas fitting 728 of the developing agent receiving cup 714- through a pipe 918, as in FIG Fig.4. In this way, under the control of electromagnetic valve 912, an accurately measured amount of the ammonia free of water of crystallization

Its device, designated as a whole by 920, supplies the bowl 714 with a precisely measured amount of liquid through a pipe 730. The device 920 feeds the bowl 714 water droplets to ₉ when ammonia free of crystalline water is used as the developing agent. The device can, however, also be used for supplying aqueous ammonia, in which case the aforesaid storage container for ammonia free of crystalline water is not required except that the liquid supply container is vented to ambient air when water is used, or is vented into development chamber 700 so that when aqueous ammonia is used, it is vented into development chamber 700 to create a self-contained device ·

As can be seen from FIGS. 29-32, the liquid metering device 920 has one on the frame of the copier fixed frame 922 on which a liquid container is attached upside down. With the opening of the container 924 is a flexible tube 926 connected, which in turn with is connected to the pipe 730 shown in FIG the liquid contained in the container 924 flows through the pipe 926 due to its intrinsic gravity. On the frame 922 are to the Place 932 and 934 two generally triangular “liquid regulating members 928 and 930 are attached pivotably and attached to the inside The corner is provided with a protruding pin 936, 938 to clamp the tube 926 against the upright flange a generally L-shaped stop member 940 ″ that on the frame 922 is attached by means of a flat connecting link 942

40 9 837/1 00 3

At the third corner of the triangular members 928, 950, a roller bearing 944, 94-6 is attached, which with an actuator 948 cooperates. The actuator 948 is generally circular designed with a flat 950 and causes a periodic reciprocation of the triangular links 928, 930, as in Figures 29 | 30 and 31 is shown on the frame 922 a drive motor 952 attached, whose shaft with the actuator 948 is connected so that from the container 924 a a predetermined amount of liquid is drained

The control and cooling device

In department 30 of the copier is a first fan 970 arranged, the inlet hose 972 in a ventilation slot 974 ends at the side of compartment 30 · The exit air of the Blower 970 becomes the <ääs conveyor belt via hoses 976, 978 570 and the area surrounding the copy table 26 Openings 600 and 602 on the frame plate 402 of the exposure and clearing arrangement according to FIG. 17 · The inlet of a suction fan 980 is with the hose 598 (Fig.17) of the exposure lamp assembly and leads the heated air through an additional hose 982 to a second vent 984 in Department 30.

In section 986 there is a power source for the mercury vapor lamp 504, which may be known from an expert and is therefore not described further.

The copier according to the invention is also provided with a control network equipped, which consists of the conventional switching arrangements, such as relays, with which the desired work sequence is controlled can be, in view of the knowledgeable well-known many-

at
There is no need for a more detailed description of the various possibilities for setting up such switching and control networks.

How the copier works

Before the device is put into operation, a roll 38 of a diazo or vesicular film is placed in the compartment 30 and passed through the film transport and cutting devices 44 and 46. The copier according to the invention

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is for making copies using one of the named types of film set up, with the setting on a of the named types of pilms carried out by a first selection container 31 which is located in department 36 · After switching on the copier, lamps on the control panel indicate the relevant setting of switch 31 onWhen using a diazo film, switch 31 is set accordingly, after which the on-switch on the control panel 28 is actuated «

Initially, the cooling fan 970 and all three heating elements 722, 732 and 846 of the developing device 700 are supplied with power · In addition, the drive motor 794 of the developing device is switched on and sets the developing belts 818 and 820 and the evacuation conveyor 570 in motion · When the temperature in the developing chamber 700 reaches approximately 71 ° 0, which is determined by the thermal switch 736, the vesicular heating element 846 is switched off, while the other heating elements 722 and 732 are operated according to the temperatures determined by the thermal switches 718 and 738 -Heating element 846 «which is used to heat the thermally conductive block 838 to approx. 150 ⁰ G only in order to shorten the heating time of the device when using a diazo film ·

At the same time, the motor 952 becomes the liquid metering device 920 is supplied with power which causes rotation of the actuator 948, the developing agent receiving Bowl 714 is supplied with a measured amount of water · The Motor 952 can be operated at a steady low speed, but is preferably powered by a timer (not shown) periodically operated «Furthermore, the electromagnetically operated valve 912 receives the device with crystal water-free Ammonia supplying device electricity and leads the shell 714 a measured amount of the anhydrous ammonia.

When the temperature in the developing ^{chamber reaches about 71 0} G, the vesicular heating element 846 is turned off ^ while the exposure lamp 504 and the indicator lamp on the control panel 28 are supplied with power. At this time, one does not

Ά 09837/1003

shown timer also current, so that after. sequence a short time of about three minutes the cooling fan 930 the exposure lamp assembly is put into operation. The timing relay therefore keeps the blower 980 out of operation until the mercury vapor lamp 504 has started, the one contained in it To evaporate mercury and its full luminosity unfolds. The copier is then used to load an original for the Making a copy ready for use. "

Sin arranged in the housing 36 second switch 33 can in one of two settings can be offset, the use of a copy film in the form of a film roll or individual sheets of paper Correspondingly, if the switch 33 is set to the use of individual file copy sheets, the corresponding indicator lamp on control panel 28 receives power while film transport and cutters 44 and 46 are disabled so that the film is not pulled off the roll 38 can · If the switch 33 is set for the film supply from the film spool, push-button switches can be used for selection ▼ on one copy or more copies are operated at a time, the number of copies to be made can be predetermined by setting the counter on the control panel 28 When the single copy push button switch is operated, the motor 90 powers the film feed and cutter Power to actuators 100 and 150 · From supply spool 38 a precisely measured length of film is therefore peeled off and then cut off from the blade 130 and dropped the original previously placed on the copy table 26.

The actuating plate 100 is actuated in rotation about 360 ° the arm 118 of the microswitch 114, the motor 90 is turned off un the control ring 100 comes to a standstill · B _e i the operation of the micro-switch 114 also receives the DC motor 326 of the copy table assembly power and sets the Copy table arrangement moving at a speed which depends on the setting of the exposure on the control panel 28 · Further microswitches 608 and 604 of the trim and tree arrangement interact with lugs 214 and 216 of the copy table arrangement and determine the limits of the movement «

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In particular, microswitch 608 determines the limit of forward travel of the copy table and causes a reversal of the motor 326 · When the motor 326 is running in the opposite direction of rotation the copier table, to the front part of the copier quickly, returned · Hereafter, the copy film sheet continues its migration continues through the developing chamber and returns to the front part of the copier, on which the copy sheet is conveyed into a receiving tray 34. The original remains on the copier table and is transported back with this so that further copies can be made if this is required.

Is on the control panel 28 the push-button switch for several Copies is actuated, the sequence of operations described above is repeated to make the desired number of copies, with. the copy table carrying the original is reciprocated every time a sheet of copy film is cut and through, the exposure and Development stations is promoted.

The mode of operation of the copier according to the invention will now be explained again with reference to FIGS. 20-25. As can be seen from FIGS. 20 and 21, at the beginning of a work sequence, an original 0 is placed on the copy table, between the stationary left stop member 224 (3Pig, 1) and the retracted right stop members 292 and 294 placed «When the original is placed on the copier table, the lever 262 pushed down with the result that the front stop members 224 and 246 are retracted and with the top of the Align the copy table · The leading edge of the original will be aligned then under the thin plastic release liner 242 and to the front of the compressible sponge-like element 240 applied · Bach releasing the lever 262, the front stop members return 244 and 246 in the upright shown in Figure 1 Positions back and catch the original in the correct lengthwise position on the copy table. After that, a measured and cut length of the copy film 0 from the supply roll 38 on the copy table about 9> 5 Bim in front of the Stop members 244 and 246 and dropped between the left and right stop members. The sheet of copy film therefore falls on the copy table so that the front edge is above the

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I Plastic release liner 242 is located so that after exposure be sure to separate the copy sheet from the original

When the copy table begins to move forward} so occupy the controlled right stop members 292 and Looking towards the stationary left stop member 224 under the action of the roller 308 'and the actuating means 310 (Fig. 15) The stop members 292 and 294 therefore both move the original and read sheet of copy film against stop 224, said Sheets are inevitably aligned laterally to each other *

With the further forward movement of the gazebo table, the inclined front Xante 340 comes into contact with the soft pressure roller 4-14 and rotates it in accordance with FIGS. 20 and 21 · shown in Ijaraeigersinne, wherein the Suasmilsrefflselsmente herding 428 and 4J0 lowered onto the top of the copying table, as in the 5 ^l ig # 21 JSbenso moved sish the vase-shaped member 432 downwardly against the Kopiertisoh ~ aas and smoothes Kopierfilmbiatt. In the case of a more thorough forward movement of the copier, the ir-ais elements 428 and 430 act on the copier sheet 0 and bsn the copier sheet against the support members 244 and 246, thus terminating the alignment «

Both right stop members 292 and 294 and stop members 244 and 246 are in the upright position get up the copy sheet and the original from the pinch roller 414 can be recorded. At Jortsetz'üng the movement of the copy table arrangement the right stop members 292 and 294 are then withdrawn into the rest position, so that with certainty a mirror image is created at the end of the pressure roller 414 With the forward movement of the copy table, the engagement of the arm 250 with the stationary actuator 330 causes a retraction the stop members 244 and 246 in their aligned position with the top of the copier table, so that they are under the Holle 414 wander away without damaging them.

4098 3 7/100 3

When the copy sheet, which is combined with the original, moves under the roller 414, a pressure is exerted on the sheets by this roller, which holds both sheets tightly against each other and at the copy table, so that an exact exposure can take place * As from the Pig _o 22, the ultraviolet radiation from the lamp 504 falls through a slit the width of which is slightly smaller than the flat portion of the pressure roller 414 that is pressed against the glass that during the forward movement of the copy table a distortion-free exposure of the copy sheet takes place »

In the exposure of the copy sheet 0 and after leaving the roller 414, the copy sheet is separated from the original 0 by the plate 450, as shown in Figures 23 - represented 25 _β As already described, the original 0 is placed on the copyboard so that its The front edge is located under the plastic release liner 242. Further, the copy sheet 0 is aligned with the original so that its leading edge is located above the release liner 242, as shown. During the forward movement of the copy table under the pressure roller 414, the soft foam material 240 carrying the separating film 242 is compressed so that good contact is established between the original and the copy sheet. When the release liner 242 leaves the pressure roller 414, the foam material 240 returns to its original volume, with the result that the leading edges of the original and the copy sheet separate somewhat from one another. During the further forward movement, the roller bearing 454 of the receiving plate 450 slides into the recess 336 of the actuating member 334, so that the plate 450 can be pivoted against the separating film 242. As the plate 450 moves downward, its beveled front edge compresses the foam material 240 so that the apex of the receiving plate can slide under the front edge of the copy sheet G. As the copy table continues to move forward, the copy sheet slides up onto the platen 450, with the actuator 334 lifting the take-up platen from the top of the copy table via roller 454, causing damage to the original

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The original remains under the separating film 242 back, while the copy table continues its movement and finally into the starting position shown in Fig.1 returns.

As can be seen from FIG. 22, the separate copy sheet 0 is guided over the receiving plate 450 and then guided between the bolt sets 746-748 and 752-754 and into the developing chamber 300. Thereafter, the copy sheet is gripped by the belts 818 and 820 in the chamber 700 and advanced, the exposed copy sheet being developed. As ready executed, this exposed to the action of ammonia, water vapor and an elevated temperature of 71 ⁰ C using a diazo film, wherein a development of the film takes place · If the copy sheet on the other hand from a Vesikularfilm, so the development is carried in the upper leg of the developing chamber , wherein the block 838 is heated to a temperature of 150 ° G. In this case, the electromagnetic valve for the supply of anhydrous ammonia and also the liquid metering device 920 are put out of operation, so that the copy sheet is merely heated for developing. The developed copy sheet is fed onto conveyor belt 570 from the lower leg of the development chamber by rollers 778 and 780.

The conveyor belt 570 conveys the developed diazo copy to the Sepfangsschaie 34 and acts as a clearing station for a developed vesicular copy. In the latter working method, which is preselected by means of switch 31, receives the electromagnet 544 current and rotates the deflector element 534 in the Fig # 22 position shown with broken lines in which the light from lamp 504 through thermal filter 487 onto the Top of the conveyor belt 570 falls. When the developed vesicular replica migrates under the lamp assembly 470, it does so the light from lamp 504 fixes the developed image of the original. From the above it goes show that in the device according to the invention both diazo films as well as vesicular films can be used and processed, with the aid of the switch 31, the developing chamber opens

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the treatment of a diazo film (which is exposed to the action of ammonia, water vapor and a substantially constant temperature of about 7 ^ ⁰ G) or the treatment of a vesicular film (which is subjected to a temperature of about 150 ° 0). When processing a diazo film, the reflector assembly 4-70 remains closed and shields the conveyor belt 570 from the ultraviolet radiation from the lamp 504, while when using vesicular films

the yeast deflector assembly 470 remains open and a fixation of the developed illustration.

When processing diazo films, the developing chamber is used 700 from the container 924 from the liquid metering device 920 a precisely measured amount of liquid is supplied. When the cam plate or cam 948 is rotated removed the upper pinch roller 938 from the feed tube 926, so that the tube is opened and the liquid can flow to the lower pinch roller 936 due to the gravity of the sig, as in FIG Fig. 29 · If the cam or cam disc continues to rotate, the upper clamping roller is closed, whereby a precisely defined one between the two clamping rollers 938 and 936 ■ Liquid amount is included, as shown in FIG As the disc 948 continues to rotate, the lower pinch roller opens while the upper roller closes remains so that the trapped liquid can flow through the bore into the development tray 714. The amount of too dosing liquid can of course without difficulties due to the distance between the two pinch rollers 936 and 938 from one another are determined and by the speed of the cam disk 948, with which this is driven by the motor 952. will"

The microfilm copying machine according to the invention therefore obviously represents a substantial advance over the known especially with regard to the possible uses and the design and working method. The inventive The device has several advantages in that it has a DiazofUrne option and vesicular films can also be processed the exposure and development after cutting off a capping sheet from the supply roll 38 to avoid waste of material

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avoid. There are also advantages to be seen in the fact that a single mercury vapor lamp can be used to expose diazo and vesicular films as well as for fixing vesicular films is used that the originals and the copy sheets automatically both laterally as are also aligned in the longitudinal direction with respect to the movement of the copy table, and that the device a has a compact structure and low power consumption

In the embodiment of the invention described above Changes, modifications and replacements can of course be made by experts within the scope of the inventive concept. The invention itself is therefore only delimited by the accompanying patent claims.

Claims

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Claims (1)

Claims 1 * micro image copier, characterized by a copier table that can be moved back and forth on a frame between loading and exposure stations and carries an original folded with a copy sheet, by means of alignment means that align the copy sheet with the original when the copier table is moved to the exposure station means attached to the path in the exposure station for exposing the copy sheet through the original, through developing means for developing the exposed copy sheet, and by means which separate the exposed copy sheet from the original and convey the copy sheet to the developing means 2 · copier according to claim Λ , characterized by clarifying means, which can be operated selectively and cause a clarification of the unexposed areas of a developed yesicular copy sheet, and characterized in that the developing means are equipped with means which in a first and a second mode of operation for developing diazokopjjen respectively Vesicular copies can be operated 3 · copier according to claim 1 or 2, characterized in that that the developing means have a closed chamber with a sealed inlet and a Outlet opening is provided, through which openings the copy sheet is passed, that first means are provided that heat the chamber to a first elevated temperature and supply ammonia and water vapor to the chamber, that second means are provided which heat the chamber to a second elevated temperature which is higher than that the first-mentioned temperature, and that the selection means with a first and a second mode of operation for activating said first and second means are provided. 409837/1003 4. Copier according to one of claims 1 to 3, characterized characterized in that the speed of movement of the copy table can be regulated by the exposure station, so that the degree of exposure of the copy sheet by the original through "is determinable 5 · copier according to one of the preceding claims, characterized in that the alignment means from first and There are also stop means, which are arranged on the first and second opposite sides of the copy and are movable with respect to one another during the movement of the copy table. 6 · Copier according to one of the preceding claims, characterized by film feed means, which are arranged on the frame and side of the copy table, and the one preselected Guide the length of the copy film over the copy table and cut through, taking the cut sheet of copy film falls on the copy table and roughly on the original 7. Copier according to one of the preceding claims, characterized in that the exposure means is an ultraviolet radiation source and above this arranged * bolls that the copier table with one for ultraviolet rays transparent plate is provided, which carries the original and the copy sheet, and between the said Bollen and the ultraviolet radiation source is movable to and fro, wherein the Bollen hold the copy sheet with the original against the stxahlungsdurohlrichtungen plate when the Copying table moves past the radiation source so that holding-down means are provided, which in the interaction of the copy table with the studs hold the copy sheet against the original when the copy table moves to the exposure station. 8 · Copier according to one of the preceding claims, characterized characterized in that the developing agent is a general 409837/1003 Have U-shaped, closed chamber, the legs of which on Frames are mounted horizontally one above the other so that the chamber is sealed at the end of each leg has opening for the passage of the copy sheet that the upper leg of the chamber is close to the exposure station is located and takes an exposed copy sheet that on the frame below the exposure station and close to the lower Legs of the chamber are arranged to convey the developed copy sheet from the developing device to a container located below the loading station that the exposure device emits an ultraviolet Has radiation source on the frame below the path of movement of the copy table and above the conveyor is mounted, and reflector means below the ultraviolet radiation source which is movable into a closed position, in which the conveying means are shielded from the ultraviolet radiation, as well as in a open position where the conveyors are exposed to ultraviolet radiation with a developed copy sheet Can be cleared from a vesicular film if the copy sheet is removed from the conveyor below the ultraviolet radiation source is transported. 9ο copier according to claim 8, characterized in that the developing device comprises first and second endless conveyor belts, each conveyor belt generally one of which U-shaped trajectory followed, with the second conveyor belt sitting in the first conveyor belt, and with the two conveyor belts between each other the copy sheet from the open end of the upper leg to the open end of the lower leg conveying, and that the first conveyor belt remains dimensionally stable under the action of heat, during the second conveyor belt is porous 10 · copier according to claim 8, characterized in that the development chamber has a first heating element which in the interior of the chamber a substantially uniform 409837/1003 and maintains a temperature above room temperature, and a second heating element which is arranged in the upper leg of the chamber and in the upper leg one Maintains temperature that is above the temperature generated by the first heating element, and that a third heating element is provided in a tray arranged at the bottom of the chamber and accommodating a developing agent. 11 »Method for producing copies of a micro-image original with the copier according to one of the preceding claims before, characterized in that a preselected length of copy film is measured from a film supply roll that the the measured length of copy film is cut off, that after measuring and cutting the cut copy sheet is collapsed with the original on a movable copy table and aligned while the copy table moves to an exposure station, that the copy sheet is exposed through the original, that the exposed Copy sheet is separated from the original that the copy sheet is developed and that the developed copy sheet returned to a location close to the original is changed. 409837/1003