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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 5652944 | Serial electrophotographic apparatus with first and second supply chamber with stirring arrangements A processing part mounted in a carriage for effecting printing when translated in a direction perpendicular to a direction in which recording paper is transported includes a developing unit, the developing unit including a toner chamber and a toner cartri... | 07/29/1997 |
| 5594529 | Imaging device with stock supervision means An imaging device supervision system stores data indicating, for instance, the number of sheets of paper supplied from each paper supply cassette in a copying machine, and/or the number of times the toner has been replenished, and the amount of toner cart... | 01/14/1997 |
| 5592298 | Apparatus and method for detecting digitized image area coverage by counting pixels A system for estimating pixel coverage in a digitized image including a controller for sampling pixels in a byte stream according to a varying spaced sampling mode so as to avoid image pattern errors. A processor for sums the sampled pixels, so that a tot... | 01/07/1997 |
| 5548374 | Image forming apparatus using a process unit In a recording apparatus for performing electro-static recording using toner, an image forming apparatus has a process unit including, as one unit, at least a photosensitive member and a spent toner holding section, a first counter for counting a total am... | 08/20/1996 |
| 5523822 | Image forming apparatus with means of selecting a paper cassette that has just been loaded An electrostatic copying machine has a cassette detachment detection circuit. The detection circuit detects a detachment of any one of a plurality of cassettes. When one of the plurality of paper cassettes is taken out of the main body of the copying mach... | 06/04/1996 |
| 5508782 | Lighting unit cooling device control and combined exhaust device An image formation apparatus comprises an image formation device for forming an image on a recording material according to image information light obtained from light emitted from a light source. A detector detects the light intensity emitted from the lig... | 04/16/1996 |
| 5486899 | Image forming apparatus having a function of identifying a toner cartridge A control section 81 of a PPC outputs a request signal having a command that designates an encrypting rule to a cartridge CPU 45f of a toner cartridge. The control section 81 receives a response signal based on the output of the request signal from the ca... | 01/23/1996 |
| 5383004 | Normalizing sheet count to predict hardware replacement intervals A method of normalizing the count in a counter depending upon the type or size of the copy sheets processed in an electronic image processing machine including the steps of determining the size or type of copy sheets in process in the machine, recording a... | 01/17/1995 |
| 5335048 | Efficient control system of image forming apparatus A control system of image forming apparatus in accordance with the present invention includes a plurality of image forming apparatus and a control unit connected to each of the image forming apparatus through a communication line, and each of the image fo... | 08/02/1994 |
| 5305199 | Consumable supplies monitoring/ordering system for reprographic equipment A reprographic machine includes an inventory tracking system for monitoring consumable supplies. Usage data from a plurality of networked reprographic machines is supplied to a single tracking system for monitoring inventories of supplies consumed by the ... | 04/19/1994 |
| 5223895 | Image forming apparatus having message output function Various maintenance manuals for an image forming apparatus are stored in a message memory. When a total image forming numbers formed in the apparatus reaches a predetermined count, and after the formation of the all image data which has been supplied from... | 06/29/1993 |
| 5220386 | Image forming apparatus having cleanable transfer material carrying means An image forming apparatus for forming an image on a transfer material includes: an image bearing member; a device for forming an image on the image bearing member; a developing device for developing the image into a developed image; a transfer material c... | 06/15/1993 |
| 5216464 | Image forming apparatus having replaceable element which is replaced based on frequency of use An image forming apparatus which includes a replaceable element which is replaced in predetermined amount of use and predicting apparatus for predicting the time when the predetermined amount of use of the element is to be reached. The predicting apparatu... | 06/01/1993 |
| 5214471 | Background monitoring device An apparatus in which background density of a sheet having visible indicia is monitored. A region of the sheet is scanned and a signal is generated corresponding to the scanned region. The signal corresponding to the scanned region is processed and a sign... | 05/25/1993 |
| 5212522 | Basic developability control in single component development system In the development system of an electrophotographic apparatus, a selected ratio of electrostatic charge per unit mass for particles adhering to a member transporting to a surface having a latent image recorded thereon is maintained. Means are provided for... | 05/18/1993 |
| 5200779 | Image forming apparatus with maintenance procedure A copying machine including an image forming section, a control unit, and memory means. The control unit has a memory storing data for controlling the image forming section. The memory means stores maintenance data which is generated every time said image... | 04/06/1993 |
| 5194897 | Image forming apparatus with charge wire cleaners An image forming apparatus for forming hardcopy images by electrophotographic process using a developing device for toner developing and chargers for charging and discharging by corona discharge, the image forming apparatus having cleaners for removing to... | 03/16/1993 |
| 5189521 | Image forming apparatus and method for correction image density non-uniformity by reading a test pattern recorded by the apparatus There is disclosed an image forming apparatus for recording an original image read by a reading unit on a recording medium uses a recording head having an array of a plurality of recording elements. The apparatus includes pattern forming unit for forming,... | 02/23/1993 |
| 5181068 | Method for determining amounts of UCR and image processing apparatus UCR (under color removal) amount is determined, which can satisfy printing conditions as desired easily and within short time. Gray balance for Y, M and C is inputted from input means 13. A control means 9 interpolates the inputted gray balance as necessa... | 01/19/1993 |
| 5146271 | Fusing station having release-oil level detector A heat and pressure fusing station in an electrostatographic copier or printer includes a level detecting apparatus for detecting a low oil level condition in a release oil reservoir of such a fusing station. The level detecting apparatus includes a tempe... | 09/08/1992 |
| 5132729 | Genuine security article distinguishing system for an image forming apparatus An image forming apparatus having replaceable or exhaustible component parts is provided with a security system to determine the authenticity and remaining service life of the component parts. The component part can be provided with an identifiable code, ... | 07/21/1992 |
| 5115275 | Developing unit for an image recording apparatus A developing unit usable with and removably mounted on a copier, printer, facsimile machine or similar image recording apparatus. When the developing unit reaches the end of a predetermined service life thereof as counted in terms of, for example, the num... | 05/19/1992 |
| 5101233 | Electrophotographic recording apparatus indicating a wear rate for consumable parts In an electrophotographic recording device which includes a number of consumable parts, there is provided a first memory for storing a currently integrated total number of prints, and a number of prints at replacement of each consumable part. A second mem... | 03/31/1992 |
| 5066978 | Image forming apparatus having an exchangeable unit exchange timing indicating device The image forming device of this invention is related to a device such as a duplicator, a printer, a facsimile or the like in which a printing operation is carried out by utilizing an electrophotographic recording system and an electrostatic recording sys... | 11/19/1991 |
| 5021828 | Copying apparatus having a consumable part A storage apparatus such as a copier or facsimile machine which stores information on paper and uses parts which the operator replaces upon expiration because of consumption of the part or deterioration of the part. A system is provided so that the consum... | 06/04/1991 |
| 5021826 | Electrophotographic copying machine having a function of judging whether a copying operation can be performed responsive to a remainder amount of consumptive parts or materials An electrophotographic copying machine including consumptive parts or materials which are used or consumed upon every operation is disclosed. In the copying machine, a remainder number of copies to be obtained until consumption of either one of said parts... | 06/04/1991 |
| 5008711 | Image forming apparatus An image forming apparatus of the type including a plurality of process means for developing an electrostatic latent image provided on an image carrier to produce a visible image, transferring the visible image to a transfer material, and cleaning the ima... | 04/16/1991 |
| 4860052 | Copying apparatus with use frequency cancellation control The present invention relates to a copying machine constructed so as to make maintenance, and the replacement period for components in particular, readily understandable. The apparatus includes a first counter which counts the number of copies reproduced ... | 08/22/1989 |
| 4851875 | Identification and monitoring of image forming process units An image forming apparatus including a main body and a processing unit detachably mounted in the main body. The processing unit includes at least one of an image bearing member and developing device. The number of image forming repetitions of the processi... | 07/25/1989 |
| 4774544 | Counter apparatus for an image forming apparatus for counting and managing the number of image forming operations In a counter apparatus for an image forming apparatus according to the present invention, which counts and manages the number of image forming operations, data which is ultimately written is retrieved from data stored in an EEPROM, and the retrieved data ... | 09/27/1988 |
| 4705388 | Method and apparatus for determining when a layer of tacky material present on a cleaning member needs to be rejuvenated A method and a device are provided for determining the moment that a layer of tacky material needs to be rejuvenated. Typically, the layer is present on a cleaning member for removing contaminants such as paper dust and softened toner material from a fusi... | 11/10/1987 |
| 4682158 | Guidance device for manipulation of machine A machine has a control panel with a plurality of keys controlling various functions. A display exhibits prompts as to the proper operation of the machine. An operator can learn the functions of the keys by manipulating them and observing the resulting pr... | 07/21/1987 |
| 4506974 | Copying machine A copying machine includes a drive motor for driving the copying machine, a device for generating a start signal for starting the drive motor, an auto-shut device for stopping the drive motor a predetermined period of time after the completion of a copyin... | 03/26/1985 |
| 4176941 | Malfunction display system for electrophotographic copying machines A mechanical schematic diagram showing the paper flow path through a xerographic copying machine and an associated sorter is illuminated when a paper jam occurs or when the supply of paper, toner or fuser oil is depleted. At the same time the copier is sh... | 12/04/1979 |
