US3289532A - Variable sheet length electrostatic copier - Google Patents

Variable sheet length electrostatic copier Download PDF

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Publication number
US3289532A
US3289532A US384934A US38493464A US3289532A US 3289532 A US3289532 A US 3289532A US 384934 A US384934 A US 384934A US 38493464 A US38493464 A US 38493464A US 3289532 A US3289532 A US 3289532A
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Prior art keywords
original
copy
window
shaft
machine
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Expired - Lifetime
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US384934A
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English (en)
Inventor
Baumgarten Fritz
Nisenson Jules
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Wells Fargo Capital Finance LLC
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Savin Business Machines Corp
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Application filed by Savin Business Machines Corp filed Critical Savin Business Machines Corp
Priority to US384934A priority Critical patent/US3289532A/en
Priority to CH919465A priority patent/CH450172A/de
Priority to NL6509014A priority patent/NL6509014A/xx
Priority to DE19651472711 priority patent/DE1472711A1/de
Priority to FR25838A priority patent/FR1453941A/fr
Application granted granted Critical
Publication of US3289532A publication Critical patent/US3289532A/en
Anticipated expiration legal-status Critical
Assigned to FOOTHILL CAPITAL CORPORATION, A CA. CORP. reassignment FOOTHILL CAPITAL CORPORATION, A CA. CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SAVIN CORPORATION
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6517—Apparatus for continuous web copy material of plain paper, e.g. supply rolls; Roll holders therefor
    • G03G15/6523—Cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4443—Unicyclic

Definitions

  • machine In another type machine known in the prior art, the machine itself houses a stack of sheets of copy material and in response to insertion of the original, a sheet of the copy material is moved from the stack to the copying area. It will be appreciated that machines of this type are readily adapted to handle originals of only one length. If originals of different lengths are to be handled, the machine must be opened and the supply of copy material must be replaced with sheets of a length corresponding to the originals to be copied.
  • One object of our invention is to provide a variable sheet length electrostatic copier for copying originals without regard to the length thereof.
  • Another object of our invention is to provide a variable sheet length electrostatic copier which produces copies of precisely the length of the original fed into the machine.
  • a further object of our invention is to provide a variable sheet length electrostatic copier in which the copying operation is entirely under the control of the original.
  • Yet another object of our invention is to provide a variable sheet length electrostatic copier in which the material copied has the same orientation on the copy as on the original.
  • a still further object of our invention is to provide a variable sheet length electrostatic copier which is adapted to hold a large supply of copy material.
  • FIGURE 1 is a sectional view of our variable sheet length electrostatic copier.
  • FIGURE 2 is a top plan view of the copier shown in FIGURE 1.
  • FIGURE 3 is a side elevation of our copy machine with a side panel removed to show the drive system of the machine.
  • FIGURE 4 is a fragmentary sectional view of our improved copier illustrating the original transport mechanism thereof.
  • FIGURE 5 is a fragmentary sectional view of our copy material feeding and cutting mechanism employed on our copier.
  • FIGURE 6 is a sectional view of the copy material feeding and cutting mechanism of our copier.
  • FIGURE 7 is a side elevation of the copy material cutting and feeding mechanism of our copier.
  • FIGURE '8 is a fragmentary top plan view of the mechanism shown in FIGURE 7 taken along the line 88 of FIGURE 7 with parts broken away.
  • FIGURE 9 is a fragmentary sectional view of the mechanism shown in FIGURE 7 taken along the line 9-9 of FIGURE 7.
  • FIGURE 10 is a schematic view of one form of electrical control circuit which can be used on our improved electrostatic copier.
  • one specific form of our electrostatic copier indicated generally by the reference character 10 has a base 12, a back 14, a top 16, and removable side panels 18 and 20.
  • the main machine frame including respective bearing support plates 22 and 24 held in spaced relationship by anysuitable means known to the art.
  • FIG. 1 We detachably mount an original transport system indicated generally by the reference character 26 at the front of the machine 10.
  • the top 28 of the unit 26 carries a push button 30 for turning the machine on and ch, as Well as a knob 32 which can be actuated to set the machine to make a plurality of copies.
  • Knob 32 moves a pointer 34 to .a position with relation to a scale 36 at which the pointer indicates the number of copies the machine is set to make.
  • an original material such as copy paper 38 is drawn from a roll 40 carried by a shaft 42 supported in brackets 44 carried by the plates 22 and 24.
  • the copy material being drawn from the roll 40 successively passes through a cutting station indicated generally by the reference character 46.
  • a corona system indicated generally by the reference character '48, a copy paper exposure station 50, a developing station 52 and a fixing system indicated generally by the reference character 54.
  • the developed copy passes outwardly through an opening 56 onto the upper surface of the top 16 to a positon at which it is accessible to the operator of the machine.
  • a copy paper lower feed roll 58 is clutched to a shaft 60 to cause the paper to be drawn through the nip between the roll 58 and an upper feed roll 62 carried by a shaft 64.
  • the copy material passes through the nip between a pair of feed rolls 66 and 6-8 carried by shafts 70 and 72.
  • a pair of guide rolls 74 and 76 supported on shafts 78 and 80 carry the copy paper from the corona station 48 to the exposure station 50.
  • the copy material 38 carries a coating of photoconductive material such, for example, as zinc oxide or the like.
  • the station 48 As the length passes through the station 48, it is subjected to a potential between a corona discharge wire 82 disposed in a housing 84 and a ground roller 86 carried by a bracket 88. Having thus received a charge, the paper passes between a guide 90 on bracket 88 and a window 92 through which an image of the original to be copied is focused on the paper in a manner to be described.
  • Respective feed rolls 94 and 96 carried by shafts 98 and 100 carry the copy paper from the exposure station 50 to the developer station 52. It will readily be understood by those skilled in the art that as the copy material carrying an electrostatic charge is exposed to the image to be copied, the charge leaks off in the relatively lighter area of the image and is retained over the relatively darker areas of the image. After having passed through the nip between rollers 94 and 96, the copy paper 'rides over a toner roller 102 carried by a shaft 104. As will be described in detail hereinafter, as the copy paper passes by the toner roller 102 it is brushed with particles of toner which are attracted to the changed areas of the material so as to be adhered thereto to develop a latent image on the copy material. As is known in the art, the toner may, for example, be powdered resinous material having a color which contrasts with that of the copy material 38.
  • the copy material 38 As the copy material 38 leaves the developer station 52, it passes through the nip between rollers 106 and 108 carried by shafts 110 and 112. The rolls 106 and 108 feed the copy material to the space between a pair of guides 114 and 116 which lead to a pair of feed rolls 118 and 120 carried by shafts 122 and 124. The copy material 38 then passes through the space between a guide 126 and a heater 128 which applies sufiic-ient heat to the particles of toner carried by the sheet to fuse them to the sheet without at the same time scorching the sheet.
  • Guide rolls 130 and 132 carried by shafts 134 and 136 feed the copy material to an arcuate guide 138 which directs the leading edges of the sheet up into the nip be tween the roll 132 and a roll 1-40 carried by a shaft 142.
  • the sheet is then fed upwardly between guides 144 and 146 to the nip between the roll 1-20 and a roll 148 carried by a shaft 150.
  • the length of material 38 being fed from the roll 40 has been cut to the length of the original.
  • the cut sheet is fed by rolls 120 and 148 to guides 152 and 154 which direct the sheet to the nip between rolls 156 and 158 carried by shafts 160 and 162.
  • These terminal rollers 156 and 158 direct the sheet through opening 56 onto the upper surface of the top 16 where it is accessible to the operator.
  • an original to be copied is fed to the system 26 by passing it into an opening 164 to the nip between feed rolls 166 and 168 carried by shafts 170 and 172.
  • Guides 174 and 176 direct the original from rolls 166 and 168 to the nip between rolls 178 and 180 carried by shafts 182 and 184.
  • Rolls 178 and 180 guide the original toward an exposure window 186 to the nip between rolls 188 and 190 carried by shafts 192 and 194.
  • light from a source 196 is directed onto its surface to reflect an image from the sheet through an opening 198 in a light reflector 200 along a path indicated by the dot-dash line in FIGURE 4.
  • the leading edge of the original emerges from between rolls 188 and 190, it engages a guide 202 which directs the original to the nip between roll 190 and a roll 204 carried by a shaft 206.
  • the sheet is then directed upwardly as viewed in the figures and is guided by guides 208 and 210 to the nip between roll 178 and a roll 212 carried by shaft 214.
  • Our original transport system comprises a baflle 216 adapted to be moved in a manner to be described between the full line position shown in FIGURE 4 and the broken line position.
  • the full line position of the baffle 216 In the full line position of the baffle 216, it directs the original out through an opening 218 through which it is returned to the user.
  • the leading edge of the original moves upwardly past the baffle to guides 220 and 222 which carry the original upwardly to a nip formed by roll 168 and a roll 224 carried by a shaft 226.
  • a guide 228 on one of the walls of the opening 164 directs the original back to the nip between rolls 166 and 168 to cause the original to be recycled through the system 26.
  • the broken line position of the baffle 216 is that position it occupies when multiple copies of a single original are to be made.
  • shafts 60', 64, 70, 72, 78, 80, 98, 100, 104, 122, 134, 184 and 192 are supported on the main frame plates 22 and 24 or on subassembly support plates carried by these members.
  • Any suitable means, such as a releasable catch 234 on the main frame, may engage a pin 236 on the door 230 to retain the door in its closed position.
  • Inwardly extending flanges 238 support the shafts 124, 136, 142 and 150, as well as the guides 126, 144 and 146.
  • the side walls 240 of the original transport unit 26 carry shafts 170, 172, 182, 184, 192, 194, 206, 214 and 226, as well as the guides of the original transport mechanism.
  • the hangers 231 on the assembly 26 may engage a bracket 233 on the main machine body.
  • Latches 235 engage pins 237 on the assembly 26 to hold it in position.
  • the drive system of our machine includes a drive motor 242 supported on the plate 22 for example.
  • Motor 242 is adapted to be energized in a manner to be described to drive a shaft 244 carrying a pair of sprocket wheels 246 and 248.
  • Wheel 246 drives a pitch chain 250 in engagement with a sprocket wheel 252 on the shaft 70.
  • motor 242 drives shaft 244 in a counterclockwise direction as viewed in FIGURE 3 to drive shaft 70 in a counterclockwise direction.
  • Sprocket wheel 248 drives a pitch chain 254 which provides the main drive for the machine.
  • Bracket 256 swingably supported on a pin 258 on plate 18 is normally urged by a spring 260 to swing in a clockwise direction as viewed in FIGURE 3.
  • Bracket 256 carries a sprocket wheel 262 which engages the chain 254 to take up the slack in the chain.
  • Chain 254 extends from sprocket wheel 262 around a wheel 264 on shaft 266 carried by a bracket on plate 22 and thence upwardly to sprocket wheels 268 and 270 carried by shafts 60 and 78. From wheel 270, chain 254 extends over a sprocket wheel 272 on shaft 98, under a wheel 274 on shaft 104, under a sprocket wheel 276 on shaft 112 and over a wheel 278 on shaft 162. From the wheel 278, chain 254 passes downwardly and into driving engagement with a sprocket wheel 280 on shaft 122 and under a wheel 282 on shaft 134 and back to wheel 248.
  • Shafts 104 and 112 Shaft 266 carries for rotation therewith a gear 284 which engages a gear 286 on shaft 192.
  • Gear 286 drives a gear 288 on shaft 194 to drive a sprocket wheel 290.
  • Wheel 290 drives a pitch chain 292 which extends upwardly from the sprocket wheel 290 to a wheel 294 on shaft 172 and then downwardly around an idling, chain-tensioning sprocket wheel 296 on a shaft 298 carried by the unit 26. From wheel 296 the chain 292 extends over and drives a sprocket wheel 300 on shaft 214.
  • gear 288 is brought into driving engagement with gear 286.
  • motor 242 is energized to drive shaft 266 in a counterclockwise direction
  • shaft 192 is driven in a clockwise direction to driveshaft 172 in a counterclockwise direction and to drive shaft 214 in a clockwise direction through the medium of chain 292.
  • the main frame of the machine carries a pair of adjustable copy material guides 308 and 310 between which the copy paper passes in its travel toward the feed rolls 58 and 62.
  • the distance between the guides 308 and 310 can be adjusted to accommodate copy material of varying widths.
  • the base 12 carries an optical system indicated generally by the reference character 302 comprising a lens 304 through which the reflected image passes to a mirror 306 which directs the image upwardly through the window 92 over which the copy material is passing.
  • the chains 254 and 292 drive the various rollers in the manner set forth hereinabove.
  • the original is inserted into the opening 164 and is advanced by rolls 166 and 168 through the space between guides 174 and 176 until it engages a feeler 312 adapted to operate a microswitch 314.
  • One of the operations to be performed in response to operation of the switch 314 is the initiation of the copy paper feeding operation. As has been explained, this operation is achieved by clutching roll 58 to the shaft 60.
  • the original engages a lower feeler 315 to actuate a switch 486. While we have shown switches 314 and 486 as being mounted on the removable unit 26, they may more conveniently be carried by the main machine body to facilitate the making of the necessary electrical connections.
  • FIGURES 5 to 9 we dispose a bearing 316 between the end of shaft 60 and the end of roller 58 outboard of the plate 2-4.
  • the end of shaft 60 carries for rotation therewith a feed-spring washer 318.
  • Washer 318 receives one end of a clutch spring 320 coiled around a clutch drum 322 secured to roller 58 for rotation therewith.
  • solenoid 328 When the solenoid 328 is energized to move its armature to the right as viewed in FIGURE 7, shoe 342 is moved into engagement with the disc 326 with a predetermined frictional force. Owing to this frictional force, as shaft 60 continues to rotate, it winds the spring 320 to reduce its diameter to bring the spring coils in engagement with the drum 322. As the shaft 60 rotates, it drives the roller 58. This coupling is maintained so long as solenoid 328 remains energized. When the solenoid is deenergized in a manner tobe described, a spring 344 on the shaft 336 moves the lever back to its initial position to relieve the spring 320 which then unwinds so that the coupling between the shaft 60 and the roller 58 is released.
  • lever 334 pivots in response to energization of solenoid 328, its lower end as viewed in FIGURE 7 moves to the right to permit a switch 844 to close. This operation energizes the exposure lamps and the corona and conditions the toner monitoring circuit in a manner to be described.
  • the cutter assembly 46 of our machine comprises a stationary knife blade 346 carried by a bar 348 supported on a bracket 350 on side plate 24.
  • Bar 348 also supports a pair of paper guides 352 and 354.
  • a pair of stub shafts 356 and 358 in side plates 22 and 24 carry a rotary knife blade support bar 360.
  • An arm 362 is adapted to be oscillated to move the movable blade 360 past the stationary blade 346 to cut the length of copy material being fed through the machine. As has been explained, this cutting operation is to take place concomitantly with the interruption of the paper feed drive when the entire image of the original has been applied to the copy material.
  • solenoid 328 is deenergized.
  • Shaft 364 rotatably supports a cam 370 having respective bosses 372 and 374 at generally diametrically opposite locations thereon. With the cam 370 at rest, one of the projections 372 or 374 is at a location at which it supports a follower roller 376 carried by a pin 378 on a lever 380 pivotally supported by a pin 382 on the plate 338.
  • Shaft 364 loosely carries a ratchet wheel 396 provided with a pair of teeth 398 and 400 at locations corresponding generally to the locations of the cam projections 372 and 374.
  • a coil spring 402 surrounding a clutch drum 404 on shaft 364 normally tends to coil itself into engagetrnent with the drum 404.
  • a shaft 406 on the plate 338 pivotally supports a lever 408.
  • a spring 410 on shaft 406 normally urges the lever 408 to a position at which a detent 412 is in engagement with the surface of the ratchet wheel 396. Assuming the detent 412 is out of engagement with one of the teeth 398 and 400, then a friction coupling exists between shaft 364, the wheel 396 and the cam 370. Ultimately, one of the teeth 398 or 400 engages the detent 412 to stop the ratchet wheel. When his occurs, the direction of rotation of shaft 364 is such as causes spring 402 to unwind to relieve the driving connection between the shaft and the cam 370.
  • a pin 414 on the lever 408 pivotally supports a trigger 416 which is normally urged by -a spring 418 connected between the trigger and level 408 to rotate in a counterclockwise direction as viewed in FIGURE 7 until a stop 420 on the trigger engages the lever.
  • lever 334 When as has been described solenoid 328 is energized to initiate a copy paper feeding operation, lever 334 rotates in a counterclockwise direction to engage the shoe 342 with the disc 326. In the course of this movement of the lever, a finger 422 on lever 334 engages a projection 424 on the upper end of trigger 416. Owing to the direction of action of spring 418, finger 422 merely rides by the projection.
  • the copying apparatus at the station 52 may be a dry developer systemof the type shown and described in the copending application of Charlap et al., Serial No. 379,232, filed June 30, 1964, In this system a collector bar 534 collects stray particles of magnetic material in the manner described in the copending application.
  • our machine may employ the wet developer system described in the copending application.
  • FIGURE 10 we have shown a simplified form of electrical control circuit which can be used to control the operation of our copier. Since the particular developer system which is used with our machine per se forms no part of our invention, we have not shown the electrical elements thereof in FIGURE Respective fuses 426 and 428 connect our circuit to the terminals 430 and 432 of .a suitable source of electrical power such, for example, as the usual 110 volt 60 cycle A.C. Respective rear interlock switches 434 gauged by a connection 436 and lid interlock switches 438 ganged by :a connection 440 connect fuses 426 and 428 to on/ofl. power switches 422 ganged by a connection 444.
  • fuses 426 and 428 connect our circuit to the terminals 430 and 432 of .a suitable source of electrical power such, for example, as the usual 110 volt 60 cycle A.C.
  • the fuses 426 and 428 together with switches 434, 438 and 422 connect terminals 430 and 432 to rnain control circuit conductors 446 and 448. It will readily be appreciated that in the normal condition of our circuit before the machine is set into operation, the rear door and the lid are closed so that switches 434 and 438 are closed but the power switches 442 are open.
  • switches 442 In order to prepare our machine for operation, we close switches 442 to apply power to conductors 446 and 448.
  • Thermostats 450 connect the heater 128 across the lines 446 and 448.
  • Drive motor 242 and a blower motor 452 also are connected across lines 426 and 428 so that with switches 442 closed, heater 128 is energized and motors 242 and 452 are energized.
  • a switch 454 normally is held in engagement with a contact 456 by the knife arm 380.
  • arm 314 cugages a contact 458.
  • a glow lamp 459 connected between contact 458 and a contact 460 engaged by an arm 462 of the repeat copy mechanism (not shown) normally is energized to indicate that the machine is ready to accept copies.
  • the original With the machine thus readied for use, the original is inserted into the original transport mechanism and its leading edge first engages feeler 312 to move arm 314 out of engagement with contact 458 and into engagement with contact 464.
  • sufiicient current flows through winding 328 to energize the winding to pull lever 334 to the right as viewed in'FIGURE 7 to permit a switch 466 to close on contact 468.
  • a relay winding 470 connected in series with switch 466 between conductor 446 and conductor 448 is energized to close a pair of normally open switches 472 and 474 associated with winding 470.
  • secondary control conductors 476 and 478 receive power to energize an exposure lamp 480 and at the same time to apply voltage to the high power supply 482 to energize the corona wire 82.
  • our machine may be provided with a repeat copy mechanism.
  • a repeat copy mechanism includes a plurality of conductive segments 494 separated by nonconductive intersegmental spaces 496 and connected to a common conductive ring 498.
  • a brush 500 is adapted to engage the segments 494 and a brush 502 is adapted to engage the ring 498.
  • ring 498 and contacts 494 are carried by a member mounted on a shaft 505 for movement therewith.
  • a repeat copy stepping motor 506 between contact 494 and a contact 508 adapted to be engaged by arm 462.
  • shaft 504 When repeat copies are made, shaft 504 is moved to position brush 500 in one of the intersegmental spaces 496. At the same time arm 462 is permitted to engage contact 508. Under these conditions, when the cutter arm 380 operates to permit arm 454 to engage contact 492, motor 506 receives a pulse which drives the motor through a suflicient distance to bring brush 500 into engagement with a segment 494 in the direction of a decreasing number of copies. The engaged contact provides a holding circuit for the motor to permit it to rotate through a sufficient distance to move brush 500 into engagement with the next intersegmental space in the direction of a decreasing number of copies.
  • the copy material passes through the developer system 52 and the fixing system 54 and out through opening 56 to be delivered to the user.
  • the original is then returned by bafiie 216 through opening 218 to the user. If bafl le 216 has been set to make multiple copies then the original is recycled for a number of times corresponding to the number of copies to be made until ultimately the repeat copy mechanism is reset.
  • a transport system for carrying an original along a path through said apparatus, a sensor disposed along said path, a supply of sensitive material, a cutter, means mounting said cutter for movement between a cocked position and an actuated position, biased means normally urging said cutter to said actuated position, means comprising a follower and a cam adapted to hold said cutter in cocked position, said cam being adapted to be driven first to release said biased means and then to return said biased means to a position corresponding to the cocked position of said cutter, means comprising a feed roller for moving sensitive material from said supply past said cutter, a drive system comprising first and second shafts, a normally disengaged clutch disposed between said feed roller and said first shaft, a normally engaged clutch disposed between said cam and said second shaft, means for holding said normally engaged clutch disengaged, means responsive to actuation of said sensor by the leading edge of an original passing through said system for engaging said normally disengaged clutch, means responsive to 'deactuation
  • said means responsive to actuation of said sensor comprises a lever, means moving said lever between a first position at which said normally disengaged clutch is engaged and a second position, and a solenoid for moving said lever between said positions.
  • said means responsive to actuation of said sensor comprises a lever, means mounting said lever for movement between a first position at which said normally disengaged clutch is engaged and a second position, said clutch holding means comprising a ratchet wheel mounted for movement with said cam and a detent for engaging said ratchet wheel to hold said normally engaged clutch against engagement and means responsive to movement of said lever to said second position for moving said detent out of engagement with said ratchet wheel.
  • a transport system for carrying an original through said apparatus, a supply of copy material, a cutter, means mounting said cutter for movement between a cocked position and an actuated position, (means normally urging said cutter to said actuated position, movable means adapted to hold said cutter in said cocked position, said movable means adapted to be actuated first to release said cutter and then to return said cutter to its cocked position, means comprising a feed roller for moving material from said supply past said cutter, a drive system comprising a first shaft and a second shaft, a normally disengaged clutch disposed between said first shaft and said feed roller, a normally engaged cl-ut-chdisposed between said second shaft and said movable means, means for holding said normally engaged clutch disengaged, means responsive to the leading edge of an original passing through said transport system for engaging said norimally disengaged clutch, means responsive to the trailing edge of an original passing through said transport system for disengaging said normally disengaged
  • a transport system for carrying an original through said apparatus, a supply of copy material, a cutter, means mounting said cutter for movement between a cocked position and an actuated position, means normally urging said cutter to said actuated position, movable means adapted to hold said cutter in said cocked position, said. movable means adapted to be actuated first to releasesaid cutter and then to returnsaid cutter to its cocked position, means comprising a feed roller for moving ma-- terial from said supply past said cutter, a drive system, a normally disengaged clutch between said feed rollerand said drive system, a normally engaged clutch between said movable means and said drive system, means.
  • a transport system for carrying an original through said apparatus, a supply of copy material, a cutter, means. mounting said cutter for movement between a cocked. position and an actuated position, means normally urging said cutter to said actuated position, movable means adapted to hold said cutter in said cocked position, said movable means adapted to be actuated first to release said cutter and then to return said cutter to its cocked position, means comprising a feed roller for moving material from said supply past said cutter, a drive system, means responsive to the leading edge of an original passing through said transport system for clutching said feed roller to said drive system, means responsive to the trailing edge of an original passing through said transport system for unclutching said feed roller and for clutching said cutter holding means to said drive system and means responsive to said movable means for unclutching said movable means,
  • a transport system for carrying an original through said apparatus, a supply of copy material, normally-cocked cutting means adapted to be released to move to cut material passing thereby, means comprising a feed roller adapted to move copy material from said supply past said cutting means, a drive system, means adapted to cock said cutting means after release thereof, means responsive to the leading edge of an original passing through said transport system for coupling said feed roller to said drive system to feed material past said cutter, means responsive to the trailing edge of an original passing through said transport system for uncoupling said feed roller and for releasing said cutting mean and for coupling said resetting means to said drive system and means responsive to cocking of said cutting means for uncoupling said resetting means.
  • energizable means comprising an illuminable element for projecting an image from said first Window through said second window, an original transport system for moving an original to be copied along a path past said first window, a supply of sensitive material, means adapted to be actuated to cut material adjacent thereto, means adapted to be actuated to feed sensitive material from said supply successively past said cutting means and said second window, a first sensor disposed along said original transport path ahead of said first window, means responsive to actuation of said first sensor by said original moving into said transport system for operating said ensitive material feeding means, means responsive to deactuation of said first sensor by said original passing through said system for stopping the operation of said feeding means and for actuating said cutting means, a second sensor disposed along said path past said first window and means responsive to said second sensor for deenergizing said
  • apparatus for producing a copy of an original means forming a first exposure window past which an original is to be moved, means forming a second window past which copy material is to be moved, an original transport system for moving an original along a path past said first window, a supply of copy material, means adapted to be actuated to cut material passing thereby, means adapted to be actuated to feed material from.
  • said supply successively past said cutting means and said second window, a sensor disposed along said original transport path ahead of said first window, means mounting said first and second window forming means in spaced relationship at locations at which the distance between said sensor and said first window corresponds to the distance between said cutter and said second window, means responsive to actuation of said sensor by an original moving into said transport system for actuating said copy material feeding means and means responsive to release of said sensor by an original passing through said transport system for deactivating said feeding means and for activating said cutting means.
  • Copying apparatus for producing a copy of an original including in combination an exposure window, an original transport system for carrying an original along a predetermined path past said exposure window, cutting means adapted to be actuated to cut material fed thereby, a second exposure window, a supply of copy material, means adapted to be actuated sequentially to feed said copy material from, said supply past said cutting means and past said exposure window, means comprising an exposure lamp for translating an image of said original from said first exposure window .to said second exposure window, means responsive to the leading edge of an original moving along said path for energizing said feeding means and for energizing said lamp, means comprising said leading edge responsive means responsive to the trailing edge of said original moving along said path for energizing said cutting means and for deenergizing said feeding means and second means spaced along said path from said first means and responsive to the trailing edge of said original for deenergizing said lamp.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
US384934A 1964-07-24 1964-07-24 Variable sheet length electrostatic copier Expired - Lifetime US3289532A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US384934A US3289532A (en) 1964-07-24 1964-07-24 Variable sheet length electrostatic copier
CH919465A CH450172A (de) 1964-07-24 1965-07-01 Elektrostatisches Kopiergerät für verschiedene Blattlängen
NL6509014A NL6509014A (de) 1964-07-24 1965-07-13
DE19651472711 DE1472711A1 (de) 1964-07-24 1965-07-20 Elektrostatisch wirkende Kopiermaschine zur Herstellung von Kopien veraenderlicher Laenge
FR25838A FR1453941A (fr) 1964-07-24 1965-07-23 Machine à copier électrostatique à longueur de feuille variable

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US384934A US3289532A (en) 1964-07-24 1964-07-24 Variable sheet length electrostatic copier

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US3289532A true US3289532A (en) 1966-12-06

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US384934A Expired - Lifetime US3289532A (en) 1964-07-24 1964-07-24 Variable sheet length electrostatic copier

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US (1) US3289532A (de)
CH (1) CH450172A (de)
DE (1) DE1472711A1 (de)
FR (1) FR1453941A (de)
NL (1) NL6509014A (de)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382783A (en) * 1966-04-25 1968-05-14 Polaroid Corp Photographic exposure and processing apparatus
US3382782A (en) * 1966-04-25 1968-05-14 Polaroid Corp Photographic exposure and processing apparatus
US3382764A (en) * 1966-04-25 1968-05-14 Polaroid Corp Photographic exposure and processing apparatus
US3425777A (en) * 1966-10-17 1969-02-04 Dennison Mfg Co Photocopier cycling apparatus
US3457011A (en) * 1966-09-08 1969-07-22 Pitney Bowes Inc Time control means for copying machines
US3468605A (en) * 1967-06-30 1969-09-23 Pitney Bowes Inc Document feeding device for copying machines
US3498710A (en) * 1967-06-30 1970-03-03 Pitney Bowes Inc Document feeding device for copying machines
US3506349A (en) * 1967-07-06 1970-04-14 Polaroid Corp Photographic apparatus
US3536401A (en) * 1968-04-22 1970-10-27 Polaroid Corp Paper transport system
US3537787A (en) * 1967-09-16 1970-11-03 Icp Inc Photocopy reproduction system
US3655282A (en) * 1969-12-31 1972-04-11 Addressograph Multigraph High speed photoelectrostatic copying machine
US3663102A (en) * 1969-12-31 1972-05-16 Addressograph Multigraph High speed photoelectrostatic copying machine
US3724945A (en) * 1971-06-14 1973-04-03 Addressograph Multigraph Sheet feeding and cutting device
US3865481A (en) * 1973-06-12 1975-02-11 Mita Industrial Co Ltd Copying machine equipped with synchronous exposing mechanism
US3922083A (en) * 1972-11-07 1975-11-25 Lawrence M Freeman Electrostatic copying device with paper cutter mechanism
US4204621A (en) * 1977-06-17 1980-05-27 Olympus Optical Co., Ltd. Roll sheet feeding device
US4362076A (en) * 1978-04-17 1982-12-07 Mita Industrial Company Limited Electrostatic copying apparatus
US4739368A (en) * 1985-04-29 1988-04-19 Eastman Kodak Company Reader-printer apparatus and method for variable length copying of information on a standard sheet length
GB2399131A (en) * 2001-12-18 2004-09-08 Rehau Ltd An improved gasket
US11186459B2 (en) * 2019-02-26 2021-11-30 Oki Electric Industry Co., Ltd. Medium cutting device and image formation apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1935616C2 (de) * 1969-07-14 1983-02-03 Canon K.K., Tokyo Meß- und Steueraggregat für den Zuschnitt des von einer Rolle abziehbaren Kopierpapiers

Citations (2)

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Publication number Priority date Publication date Assignee Title
US3076400A (en) * 1959-05-29 1963-02-05 Lumoprint Zindler Kg Apparatus for making copies
US3143947A (en) * 1960-11-18 1964-08-11 Lumoprint Zindler Kg Accessory apparatus for copying devices and a copying device therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076400A (en) * 1959-05-29 1963-02-05 Lumoprint Zindler Kg Apparatus for making copies
US3143947A (en) * 1960-11-18 1964-08-11 Lumoprint Zindler Kg Accessory apparatus for copying devices and a copying device therefor

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382783A (en) * 1966-04-25 1968-05-14 Polaroid Corp Photographic exposure and processing apparatus
US3382782A (en) * 1966-04-25 1968-05-14 Polaroid Corp Photographic exposure and processing apparatus
US3382764A (en) * 1966-04-25 1968-05-14 Polaroid Corp Photographic exposure and processing apparatus
US3457011A (en) * 1966-09-08 1969-07-22 Pitney Bowes Inc Time control means for copying machines
US3425777A (en) * 1966-10-17 1969-02-04 Dennison Mfg Co Photocopier cycling apparatus
US3468605A (en) * 1967-06-30 1969-09-23 Pitney Bowes Inc Document feeding device for copying machines
US3498710A (en) * 1967-06-30 1970-03-03 Pitney Bowes Inc Document feeding device for copying machines
US3506349A (en) * 1967-07-06 1970-04-14 Polaroid Corp Photographic apparatus
US3537787A (en) * 1967-09-16 1970-11-03 Icp Inc Photocopy reproduction system
US3536401A (en) * 1968-04-22 1970-10-27 Polaroid Corp Paper transport system
US3655282A (en) * 1969-12-31 1972-04-11 Addressograph Multigraph High speed photoelectrostatic copying machine
US3663102A (en) * 1969-12-31 1972-05-16 Addressograph Multigraph High speed photoelectrostatic copying machine
US3724945A (en) * 1971-06-14 1973-04-03 Addressograph Multigraph Sheet feeding and cutting device
US3922083A (en) * 1972-11-07 1975-11-25 Lawrence M Freeman Electrostatic copying device with paper cutter mechanism
US3865481A (en) * 1973-06-12 1975-02-11 Mita Industrial Co Ltd Copying machine equipped with synchronous exposing mechanism
US4204621A (en) * 1977-06-17 1980-05-27 Olympus Optical Co., Ltd. Roll sheet feeding device
US4362076A (en) * 1978-04-17 1982-12-07 Mita Industrial Company Limited Electrostatic copying apparatus
US4739368A (en) * 1985-04-29 1988-04-19 Eastman Kodak Company Reader-printer apparatus and method for variable length copying of information on a standard sheet length
GB2399131A (en) * 2001-12-18 2004-09-08 Rehau Ltd An improved gasket
GB2399131B (en) * 2001-12-18 2005-05-11 Rehau Ltd An improved gasket
US11186459B2 (en) * 2019-02-26 2021-11-30 Oki Electric Industry Co., Ltd. Medium cutting device and image formation apparatus

Also Published As

Publication number Publication date
FR1453941A (fr) 1966-07-22
CH450172A (de) 1968-01-15
NL6509014A (de) 1966-01-25
DE1472711A1 (de) 1969-07-10

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Effective date: 19880113