US3358570A - Copy counting system - Google Patents

Copy counting system Download PDF

Info

Publication number
US3358570A
US3358570A US508227A US50822765A US3358570A US 3358570 A US3358570 A US 3358570A US 508227 A US508227 A US 508227A US 50822765 A US50822765 A US 50822765A US 3358570 A US3358570 A US 3358570A
Authority
US
United States
Prior art keywords
copy
copies
drum
counter
xerographic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US508227A
Other languages
English (en)
Inventor
Richard W Morrill
Richard H Nagel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Priority to US508227A priority Critical patent/US3358570A/en
Priority to GB51129/65A priority patent/GB1165943A/en
Priority to DER44592A priority patent/DE1283855B/de
Priority to FR84059A priority patent/FR1508192A/fr
Application granted granted Critical
Publication of US3358570A publication Critical patent/US3358570A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/02—Counting the number of copies; Billing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L39/00—Indicating, counting, warning, control, or safety devices
    • B41L39/02—Indicating devices, e.g. counters

Definitions

  • This invention relates to xerographic reproducing apparatus and, in particular to an improved copy counting system.
  • the invention relates to an automatic xerographic apparatus for use in producing xerographic reproductions from transparent, translucent or opaque copy, in the form of single sheets and wherein a first series of copies are counted on a first counter, a second series of the copies are counted on a second counter, all remaining copies are counted on a third counter wherein the apparatus allows for at least one cycle without indicating such on any counter, and if desired, the total copies produced can be counted on a fourth counter, whereby the user of rented apparatus may be billed on a stepped basis according to the use he makes of his apparatus.
  • a xerographic plate comprising a layer of photoconductive insulating material on a conductive backing is given a uniform electric charge over its surface and is then exposed to the subject matter to be reproduced, usually by conventional projection techniques. This exposure discharges the plate areas in accordance with the radiation intensity which reaches them and thereby creates an electrostatic latent image on or in the plate coating.
  • development of the image is effected with developing material which comprise, in general, a mixture of a suitable pigmented or dyed electroscopic powder hereinafter referred to as toner, and a granular carrier material, which later functions to carry and to generate triboelectric charges on the toner. More exactly, the function of the granular material is to provide the mechanical control to the powder, or to carry the powder to an image surface and, simultaneously, to provide almost complete homogeneity of charge polarity.
  • the toner powder is brought into surface contact with the coating and is held thereon electrostatically in a pattern corresponding to the electrostatic latent image. Thereafter, the developed xerographic image is usually transferred to a support or transfer material to which it may be fixed by any suitable means.
  • the principle object of the present invention is to improve copy counting systems in a manner to compensate for excess machine use resulting from short-copy runs as compared with medium or long-copy runs while maintaining a proportioned system for medium-copy runs.
  • a further object of the invention is to improve copy counting means to enable the application of several stepped billing rates as a function of the quantities of copies produced.
  • Another object of this invention is to prevent registration of at least one cycle to allow the apparatus to time out.
  • FIG. 1 illustrates schematically a preferred embodi ment of the xerographic apparatus of the invention adapted for continuous and automatic operation;
  • FIG. 2 is a top view of the stepping switch used in the counting system
  • FIG. 3 is a front view of the stepping switch
  • FIG. 4 is a view along line 4-4 of FIG. 3;
  • FIG. 5 is a view along line 5-5 of FIG. 3 and FIG. 6 is schematic electrical wiring diagram of the xerographic apparatus.
  • the xerographic apparatus comprises a xerographic plate including a photoconductive layer or light receiving surface on a conductive backing and formed in the shape of a drum which is journaled in a frame to rotate in the direction indicated by the arrow to cause the drum surface sequentially to pass a plurality of xerographic processing stations.
  • the several xerographic processing stations in the path of movement of the drum surface may be described functionally as follows:
  • a charging station at which a uniform electrostatic charge is deposited on the photoconductive layer of the xerographic drum is shown at A.
  • An exposure station at which a light to be reproduced is projected onto the drum surface to dissipate the drum charge on the exposed areas thereof, and thereby form a latent electrostatic image on the copy to be reproduced is shown at B.
  • a developing station, where a xerographic drum is developed is shown at C.
  • a transfer station at which the xerographic powder image is electrostatically transferred from the drum surface to the material is shown at D.
  • a drum cleaning station is shown at E.
  • the charging apparatus or corona charging device 21 includes a corona discharge array of one or more discharge electrodes that extend transversely across the drum surface and are energized from a high potential source and are substantially enclosed within a shielding member.
  • the optical scanning or projection assembly consists of a copyboard in the shape of a drum, hereinafter referred to as copy drum 22, which is adapted to support copy to be reproduced and arranged to rotate in light projection relation to the moving light-receiving surface of the xerographic plate.
  • Copy fed through paper guides 32 to the copy drum is' removably secured thereon by a suitable gripper mechanism for movement therewith in timed relation to the movement of the xerographic drum whereby a flowing image of the copy is projected onto the xerographic drum.
  • a suitable gripper mechanism for movement therewith in timed relation to the movement of the xerographic drum whereby a flowing image of the copy is projected onto the xerographic drum.
  • a developing station C Adjacent to the exposure station is a developing station C in which there is positioned a developer apparatus 35.
  • a motor driven bucket-type conveyor mounted within the developer housing is a motor driven bucket-type conveyor used to carry the developer material previously supplied to the developer housing to the upper portion of the developer housing from where the developer material is cascaded over a hopper chute onto the drum.
  • toner particles of the developer material adhere electrostatically to the previously formed electrostatic latent image areas on the drum to form a visible xerographic powder image; the remaining developer material falling off the peripheral surface of the drum into the bottom of the developer housing.
  • Toner particles consumed during the developing operation to form the xerographic powder image are replenished by a toner dispenser mounted within the developer housing.
  • the image transfer station D Positioned next adjacent to the developing station is the image transfer station D which includes a suitable sheet transporting mechanism including a sheet feeding mechanism and a sheet conveyor mechanism adapted to feed and convey sheets of paper successively to the Xerographic drum in coordination with the presentation of the developed image on the drum at the transfer station.
  • the sheet feeding mechanism includes a sheet source, such as paper tray 40, for a plurality of sheets of a suitable support material, that is, sheets of paper or the like, separat-or rollers 42 adapted to feed the top sheet of the stack of support material through a guide 44 to a sheet conveyor mechanism 46 having paper grippers 48 thereon which carry the sheet support material into contact with the rotating xerographic drum in coordination with the appearance of a developed image at the transfer station.
  • the paper gripper mechanism will strip the support material from the xerographic drum and carry it to a fixing device, such as, for example, heat fuser 50 whereat the developed and transferred xerographic powder image on the support material is permanently fixed thereto.
  • a fixing device such as, for example, heat fuser 50 whereat the developed and transferred xerographic powder image on the support material is permanently fixed thereto.
  • the finished copy is preferably discharged from the apparatus at a suitable point for collection externally of the apparatus.
  • a pair of delivery rolls 51 and 52 by means of which the copy is delivered from the machine after it is released by the gripper mechanism.
  • the next and final station in the device is a drum cleaning station E whereat any powder remaining on the xerographic drum after the transfer step is removed and whereat the xerographic drum is flooded with light to cause dissipation of any residual electrical charge remaining on the xerographic drum.
  • Removal of residual powder from the xerographic drum is effected by means of a web cleaner device 54 adapted to continuously feed a clean fibrous web material into wiping contact with the xerographic drum.
  • Suitable drive means drive the xerographic drum, copy drum and sheet conveyor mechanism at predetermined speeds relative to each other. Suitable drive means are also provided for effecting operation of the developer conveyor mechanism.
  • the invention includes a counting system whereby the first series copies of each run are totalized on a first counter, the second series of copies are totalized on a second counter and the remaining copies of each run are totalized on a third counter. In this manner, it is possible to arrange for billing at a given rate for the first series of copies of each run, at an intermediate rate for the second series of copies of each run, and at the lowest rate for all succeeding copies of each run.
  • the first three copies of each run are arranged to be totalized at the highest rate, the next seven at an intermediate rate and all remaining copies at the lowest rate.
  • the circuitry is arranged in a manner such that the number of copies to be totalized in this manner may be arranged at will in accordance with the requirements of a particular application.
  • the machine may include a fourth counter arranged in convenient viewing location for the operator whereby the number of copies made on each run are indicated for visual inspection.
  • the counting system counters MC-l, MC-2 and MC-3 are arranged whereby the totals registered by the counters may be observed periodically by opening one of the covers that enclose the machine.
  • the fourth or run total counter MC-4 is arranged in convenient viewing position for the operator.
  • counter MC-4 is of the resettable type so that the operator may readily set it for indicating the copies of any run as desired.
  • the invention includes a stepping switch 1-TR (see FIGS. 2 to 5) described below, that is actuated under control of switch 18LS.
  • MC-4 is pulsed and coil l-TR (count) is energized to operate the actuator 204.
  • the actuator 204 is held in the inoperative position shown in FIG. 3 by a spring 212.
  • an actuator arm 214 engagesthe ratchet 216 thereby stepping the stepping switch l-TR actuating the sliding contact arm 232.
  • the actuator arm 214 is pivoted on the actuator 204 above pivot point 218 and is held in the position shown in FIG. 2 by means of a spring 220 which is mounted by the bracket 222.
  • the actuator arm 214 As the actuator arm 214 is operated, the arm moves downward engaging the ratchet 216 and moves along with the ratchet until the actuator engages the coil and the pawl 224 engages the ratchet. When the coil ll-TR (count) is released, the actuator arm is moved back into the position shown in FIGS. 2 and 3 by means of the springs 220 and 212 ready to again step the stepping switch.
  • the pawl 224 is pivotally mounted on the bracket 222 by means of a shaft 226 which was a coil spring 228 mounted thereon for the purpose of engaging the pawl 224 with the notches of the ratchet 216.
  • the ratchet wheel 216 is connected by means of a shaft 230 which engages sliding contact or wiper arm 232 and contacts or terminals 233 mounted on insulated plate 234.
  • the stepper may be actuated a specific number of times according to how many times the document drum rotates thus actuating the coil 1-TR (count) and actuates counters MC-l, or MC2 or MC-3 and MC-4 accordingly.
  • the operation of 1LS and 20LS which are mounted on plate 234 and actuator 204 is described below.
  • the outer portion 242 thereof contacts the pawl 224 and pivots it about shaft 226 thereby releasing the ratchet 216.
  • the ratchet 216 is returned to its starting position by means of return coil spring 244 which will serve to rotate the ratchet in the counterclockwise direction as shown in FIG. 5.
  • a dog 246 pivoted about a shaft 248 is moved in a counterclockwise direction as shown in FIG. 5 by means of a spring 250.
  • the log 246 serves to maintain the pawl 224 out of contact with ratchet 216 before the ratchet can return completely and come to rest when protruding portion 251 on ratchet 216 contacts stopping means 252.
  • the actuator arm 214 will contact the outer portion 254 of dog 246 thereby releasing the pawl 224 and the resetting actuator arm 238 to the positions shown in FIG. 3.
  • the switch SW-l At the start of a normal day the switch SW-l is normally moved to the on position. It is noted that the thermostat THS1 is always energized and actuates as necessary the motor MOTl which is used to drive suitable blowers to dissipate heat from the machine generated bythe fuser and projection lamps. At this time the ready lamp LMPl is energized through a transformer T1.
  • the fuser is energized through thermostat THS4 when SW1 is closed.
  • the fuser is indicated as R1 in the schematic wiring diagram.
  • the ballast L5 is also energized putting the lamps LMP2 and LMP3 in a standby condition.
  • a copy is inserted into the machine through document guide 32 into contact with the document drum 22.
  • the copy is advanced through the document guide 32 until its forward progress is stopped by document stops, not shown.
  • limit switch 6L8 As the document is inserted in the document guide, its leading edge will actuate limit switch 6L8 positioned beneath the document guide with its actuator extending through a suitable aperture in the document guide to therebyclose its contact to complete a circuit to initiate operation of the machine.
  • the cam release solenoid SOL1 As 6L8 is closed the cam release solenoid SOL1 is energized since 9LS-A normally open contacts are'held closed by the time-out cam.
  • the cam release solenoid releases the time-out cam such that the normally opened contacts of 9LS-A and 12LSA whichvwere held closed thereby are released and the normally closed contacts 8LS, 9L8, 12LS-B, and 16LS that were also held open by the cam are closed.
  • the time-out cam is driven by a suitable drive means connected to the drive shaft which has cam surfaces formed consecutive with each other, these cam surfaces being used to actuate 8L8, 9LS-A, 9LSB, IZLS-A, 12LSB and 16LS.
  • the main drive motor MOT3 is energized to rotate the xerographic drum 20, the copy drum 22 and the sheet transporting mechanism 46.
  • the conveyor for the developing apparatus 35 are suitably driven by a motor not shown but energized at the same time as MOTS.
  • the exposure lamps are fully energized, that is, fluorescent lamps LMP2 and LMP3 are energized through their circuits, consisting of ballast L5.
  • a fluorescent lamp, LMP6 as shown in the circuit diagram is energized through its circuit including a ballast L1 and starter switch S3. Power is also supplied to the high voltage power supply PS1 to effect operation of the corona charging device, the corona transfer device and the corona precleaning device.
  • a light or radiation pattern of the copy carried on the rotating copy drum 30 is projected by means of the mirror and lens assembly onto the surface of the drum to dissipate the charge on the drum in accordance with the light or radiation pattern of the copy, thereby forming a latent electrostatic image of the copy on said xerographic drum.
  • the exposed portion of the drum then rotates to the developing station C, where a xerographic developing material including toner particles having an electrostatic charge are cascaded over the drum surface whereby the toner particles adhere to the electrostatic latent image to form a xerographic powder image in the configuration of the copy.
  • the exposed and developed portion of the xerographic drum then advances to the image transfer station D where it receives a sheet of support material advanced by the separator rollers 42 and transported into contact with the drum by the sheet conveyor 46. As the drum surface and sheet of support material pass the transfer station, the developed powder image is transferred electrostatically from the xerographic drum surface to the sheet of support material.
  • the xerographic drum then continues to rotate along its normal path.
  • the copy drum has rotated at a corresponding rate of speed whereby the copy is to be retained on the copy drum, and the copy is ejected if a single copy is to be made or if multiple copies are to be made ready to be advanced through the exposure station again.
  • the copy will have-been ejected from the machine and the xerographic powder image will be transferred to the sheet of support material during the one cycle of rotation of the xerographic drum and copy drum.
  • the sheet of support material, with the powder image transferred thereto has not been ejected from the machine.
  • the operating cycle of the apparatus disclosed is such that it requires three cycles of rotation of the xerographic drum and the copy drum to effect one and one-half cycles of rotation of the sheet conveyor mechanism.
  • the pitch length of the chain of the sheet conveyor is twice the circumference of the xerographic drum, so for three revolutions of the xerographic drum the chain makes one and one-half revolutions.
  • the xerographic drum and the copy drum must rotate through a second and third revolution to permit the sheet conveyor mechanism to eject a sheet of support material from the machine.
  • the optical system will in effect scan a blank copy drum and project a radiation image from the copy drum onto the xerographic drum, to expose the xerographic drum to this image of the copy drum.
  • the xerographic drum will then again pass through the developing station and through the transfer station as latch mechanism, not shown, will prevent advancement of a sheet of transfer material from the paper tray to the xerographic drum.
  • contacts 6CR2A are closed for previously described; however, a
  • contacts 6CR-1A are closed to provide its own holding circuit for 6CR.
  • 6CR is actuated by 15LS that is normally held open and is released by a cam driven by the drive system on each revolution of the copy and xerographic drums.
  • the time-out cam will commence operation. During this cycle, the cam will open IZLSB and close 12LSA. A second cam on the document drum actuates L5, 17LS and 18LS on each revolution thereof. If single copies of successive originals are to be made they can be placed in the document guide thereby holding the contacts of 6L8 closed.
  • the time-out cam opens 8LS, thereby de-energizing the relay 6CR and opening the contacts 6CR-1A and 6CR-2A.
  • This switch 7LS is never closed when the machine is set to make a single copy.
  • the cam on the document drum will also actuate SLS which will not effect the circuits if another original is not inserted in the document guide since 6LS is open. 17LS is closed but none of the counters are pulsed since the second contact on the stepper is blank.
  • the switch lTR may be provided with one or more dead contacts.
  • the second and third contacts on the switch lTR are dead contacts. These contacts allow the machine'to properly register the copies made on the proper counter while allowing the machine to time or phase-out without registering such time out cycles on any counter.
  • switch 19LS mechanically as shown in dotted lines in FIG. 4 which allows the counter to continue to count copies being made as described below.
  • switch ZQLS is closed to assure the complete actuation of the coil ITR (count) by holding lTR count closed.
  • Switch 2tlLS will hold lTR (count) closed until the power is cut off by 18LS.
  • a switch over point between MC1, MC-Z, and MC-3 can be selected by a proper setting of the contacts on the stepper.
  • the contacts may be set by means of a connector which is prewired to give the desired switch over between the counters MC-l, MC-Z and MC-3.
  • a xerographic reproducing machine having a xerographic drum journaled for rotation
  • control circuit connected to said drive means for effecting a reproducing cycle during at least one revolution thereof
  • control circuit having a copy counting means for registering the number of copies produced by the machine during successive reproducing runs
  • said copy counting means including a first counter for registering cumulatively upon each actuation thereof, each copy of a first predetermined series of copies during a reproducing run,
  • said switching means being arranged to prevent actuation of said first counter during the reproduztion of said first series of copies for at least one cycle in order to allow the machine to complete at least one time-out cycle.
  • a machine includes a third counter for registering cumulatively the total of copies in excess of the first and second predetermined series of copies in said reproducing run,
  • said switching means includes means for producing actuation of said counter upon production of all copies in excess of said first and second predetermined series of copy.
  • a xerograp-hic reproducing machine having a xerographic drum journaled for rotation
  • control circuit connected to said drive means for' effecting a reproducing cycle during at least one revo-' lution thereof
  • control circuit having a copy counting means for registering the number of copies produced by the machine during successive reproducing runs
  • said copy counting means including a first counter for registering cumulatively upon each actuation thereof, each copy of a first series of copies during a reproducing run,
  • control circuit including a series of terminals and a contact arm to contact each terminal
  • said switching means including a stepping means associated with said control circuit for advancing said contact arm one terminal for each cycle,
  • said first counter connected to a first predetermined number of said series of terminals
US508227A 1965-11-17 1965-11-17 Copy counting system Expired - Lifetime US3358570A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US508227A US3358570A (en) 1965-11-17 1965-11-17 Copy counting system
GB51129/65A GB1165943A (en) 1965-11-17 1966-11-15 Document Copying Machine
DER44592A DE1283855B (de) 1965-11-17 1966-11-16 Zaehlvorrichtung zur Zaehlung und Anzeige der Anzabl von mit Hilfe einer Vervielfaeltigungsmaschine hergestellten Vervielfaeltigungen
FR84059A FR1508192A (fr) 1965-11-17 1966-11-17 Compteur de copies pour machines à copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US508227A US3358570A (en) 1965-11-17 1965-11-17 Copy counting system

Publications (1)

Publication Number Publication Date
US3358570A true US3358570A (en) 1967-12-19

Family

ID=24021887

Family Applications (1)

Application Number Title Priority Date Filing Date
US508227A Expired - Lifetime US3358570A (en) 1965-11-17 1965-11-17 Copy counting system

Country Status (4)

Country Link
US (1) US3358570A (fr)
DE (1) DE1283855B (fr)
FR (1) FR1508192A (fr)
GB (1) GB1165943A (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576431A (en) * 1967-11-16 1971-04-27 Addressograph Multigraph Recording and computing device
US3659084A (en) * 1969-12-05 1972-04-25 Agfa Gevaert Ag Predetermined counter for electrostatic copying apparatus
US3669412A (en) * 1968-12-31 1972-06-13 Minolta Camera Kk Circuitry for controlling an electrostatic copier
US3686483A (en) * 1970-12-22 1972-08-22 Ricoh Kk Memory and counting device
US3831933A (en) * 1973-04-06 1974-08-27 Xerox Corp Tamper detection and recovery
DE2414016A1 (de) * 1973-03-23 1974-10-03 Xerox Corp Programmierbare berechnungseinrichtung
DE2413753A1 (de) * 1973-04-06 1974-10-17 Xerox Corp Programmierbares verrechnungssystem
US3873198A (en) * 1972-11-11 1975-03-25 Agfa Gevaert Ag Apparatus for actuating the starting and arresting devices of electrostatic copying machines
US3971919A (en) * 1973-03-23 1976-07-27 Xerox Corporation Programmable billing system
US3974363A (en) * 1973-04-06 1976-08-10 Xerox Corporation Programmable billing system
US3989930A (en) * 1973-08-31 1976-11-02 Xerox Corporation Multi-mode billing system controlled by copy size and document original size
US4019028A (en) * 1973-03-20 1977-04-19 Xerox Corporation Printing machine with variable counter control system
US4058815A (en) * 1974-01-25 1977-11-15 Rank Xerox Ltd. Metering system for a copier/duplicator machine
FR2388315A1 (fr) * 1977-03-02 1978-11-17 Canon Kk Procede et appareil de formation d'images pour machine de reprographie
US4477180A (en) * 1982-12-27 1984-10-16 International Business Machines Corporation Photoconductor advance system for copiers and the like
US4497037A (en) * 1980-11-26 1985-01-29 Nippondenso Co., Ltd. Apparatus for managing a group of copying machines
US4506974A (en) * 1981-11-21 1985-03-26 Minolta Camera Kabushiki Kaisha Copying machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014657A (en) * 1956-04-27 1961-12-26 Veeder Root Inc Discount computer for liquid dispensing mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014657A (en) * 1956-04-27 1961-12-26 Veeder Root Inc Discount computer for liquid dispensing mechanism

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576431A (en) * 1967-11-16 1971-04-27 Addressograph Multigraph Recording and computing device
US3669412A (en) * 1968-12-31 1972-06-13 Minolta Camera Kk Circuitry for controlling an electrostatic copier
US3659084A (en) * 1969-12-05 1972-04-25 Agfa Gevaert Ag Predetermined counter for electrostatic copying apparatus
US3686483A (en) * 1970-12-22 1972-08-22 Ricoh Kk Memory and counting device
US3873198A (en) * 1972-11-11 1975-03-25 Agfa Gevaert Ag Apparatus for actuating the starting and arresting devices of electrostatic copying machines
US4019028A (en) * 1973-03-20 1977-04-19 Xerox Corporation Printing machine with variable counter control system
FR2222704A1 (fr) * 1973-03-23 1974-10-18 Xerox Corp
DE2414016A1 (de) * 1973-03-23 1974-10-03 Xerox Corp Programmierbare berechnungseinrichtung
US3971919A (en) * 1973-03-23 1976-07-27 Xerox Corporation Programmable billing system
DE2413753A1 (de) * 1973-04-06 1974-10-17 Xerox Corp Programmierbares verrechnungssystem
US3974363A (en) * 1973-04-06 1976-08-10 Xerox Corporation Programmable billing system
US3831933A (en) * 1973-04-06 1974-08-27 Xerox Corp Tamper detection and recovery
US3989930A (en) * 1973-08-31 1976-11-02 Xerox Corporation Multi-mode billing system controlled by copy size and document original size
US4058815A (en) * 1974-01-25 1977-11-15 Rank Xerox Ltd. Metering system for a copier/duplicator machine
FR2388315A1 (fr) * 1977-03-02 1978-11-17 Canon Kk Procede et appareil de formation d'images pour machine de reprographie
US4497037A (en) * 1980-11-26 1985-01-29 Nippondenso Co., Ltd. Apparatus for managing a group of copying machines
US4506974A (en) * 1981-11-21 1985-03-26 Minolta Camera Kabushiki Kaisha Copying machine
US4477180A (en) * 1982-12-27 1984-10-16 International Business Machines Corporation Photoconductor advance system for copiers and the like

Also Published As

Publication number Publication date
FR1508192A (fr) 1968-01-05
DE1283855B (de) 1968-11-28
GB1165943A (en) 1969-10-01

Similar Documents

Publication Publication Date Title
US3358570A (en) Copy counting system
US3348522A (en) Automatic toner control system
US3960445A (en) Color highlighting electrophotographic printing machine
US4371256A (en) Apparatus for handling an original and a recording sheet in a recording device
US3547533A (en) Microfilm reproduction machine
US3062094A (en) Electrophotographic copying apparatus
US3348523A (en) Automatic toner control system
US3689146A (en) Electrophotographic copying machine
US3615128A (en) Apparatus for electrostatic printing
US3079483A (en) Xerographic fixing apparatus
US3775007A (en) Forms reproduction apparatus
US3424131A (en) Electroded cascade development system
US3671119A (en) Electrostatic copying apparatus
US3527387A (en) Developer replenishing programming system
US3873196A (en) Electrophotographic copier of transfer type
US3348521A (en) Automatic toner control system
US3067720A (en) Xerographic developing apparatus
US3454335A (en) Scanning system
US3196767A (en) Document copy mechanism
US3655281A (en) Billing apparatus
US3149760A (en) Powder dispensing apparatus
US3695224A (en) Cascade development
US3078770A (en) Xerographic reproducing apparatus
US3303817A (en) Xerographic developing apparatus
US3137495A (en) Sheet feed mechanism