EP0433280A1 - Arrangement for printing devices for monitoring printing medium containers. - Google Patents
Arrangement for printing devices for monitoring printing medium containers.Info
- Publication number
- EP0433280A1 EP0433280A1 EP88907091A EP88907091A EP0433280A1 EP 0433280 A1 EP0433280 A1 EP 0433280A1 EP 88907091 A EP88907091 A EP 88907091A EP 88907091 A EP88907091 A EP 88907091A EP 0433280 A1 EP0433280 A1 EP 0433280A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- ink
- arrangement according
- memory
- arrangement
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17543—Cartridge presence detection or type identification
- B41J2/17546—Cartridge presence detection or type identification electronically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17566—Ink level or ink residue control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J35/00—Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
- B41J35/36—Alarms, indicators, or feed disabling devices responsive to ink ribbon breakage or exhaustion
-
- 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
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
- G03G15/0849—Detection or control means for the developer concentration
- G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
-
- 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
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0863—Arrangements for preparing, mixing, supplying or dispensing developer provided with identifying means or means for storing process- or use parameters, e.g. an electronic memory
-
- 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
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0865—Arrangements for supplying new developer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/17—Readable information on the head
Definitions
- Various printing principles are used in office printing devices, be it text systems or simple printing systems that work in conjunction with communication terminals. These printing principles are e.g. Ink printing, thermal transfer printing, needle printing or type printing with type plates and electrophotographic printing. All of these principles have in common that a print medium contained in storage containers is applied to a recording medium depending on the character.
- the storage containers - be they containers containing writing fluid, ink ribbon cartridges or toner containers - are usually exchangeably fastened in holders of the printing devices. They can be designed as disposable containers, which are filled at the factory and which are replaced as a whole after the print medium has been used.
- Such storage containers for ink printing devices are e.g. known from DE-PS 26 10 518, ribbon cassettes from DE-PS 32 14 548.
- Ink printing devices are also particularly sensitive to the composition of the ink liquid used.
- An ink which is not adapted to the ink printing system can, under certain circumstances, destroy the print head. For this reason, it is necessary to prevent spent ink reservoirs from becoming uncontrolled, e.g. can be refilled with ink of unknown composition by third-party manufacturers.
- Particularly sensitive to the composition of the printing medium are printing or copying devices which operate on the principle of electrophotography and in which a charge image, e.g. is colored with the aid of a developer mixture of carrier particles and toner particles.
- the colored charge image is transferred to paper in a transfer printing station and fixed in a fixing station.
- toner is constantly consumed, which is supplied to the developer station from storage containers.
- low-power electrophotographic printers such as Interchangeable top storage containers are provided for office printers. If the wrong composition of toner is now supplied, the printer operation can be considerably impaired.
- the term “printing device” in the following means any type of printing device, including copiers, in which a printing medium is applied to a recording medium depending on the character. It is therefore an object of the invention to provide an arrangement for printing devices with which it is possible on the one hand to easily ascertain the supply of printing medium, and on the other hand an unauthorized re-use is possible.
- an electronic storage device in the form of an integrated circuit (chip) is assigned to a storage container for printing devices, in which information about the current filling state of the storage container or can be called up via a detection arrangement
- This status data can e.g. Information about the expiration date of the media.
- a warning signal can be triggered via the control arrangement of the printing device and displayed on a display, and it is possible to block the printing operation.
- the electronic memory device contains a timer which can be preset in its basic setting, the count of which, starting from the basic setting, is irreversibly changed in accordance with the current shelf life of the printing medium. Damage to the printing device, e.g. aged ink or toner reliably prevents this.
- FIG. 1 shows a block diagram of the arrangement according to the invention in a multicolor ink printing device
- FIG. 2 shows a schematic representation of the structural design of an arrangement for single-color operation.
- an ink mosaic print head 10 is moved line by line along a recording medium with the aid of a motorized device in printing operation.
- the ink mosaic print head is a multicolor ink mosaic print head which works, for example, according to the bubble principle and which is supplied with writing fluid from two ink containers 11 and 12 via an ink supply system.
- the ink containers 11 and 12 can form a structural unit with the ink print head or else they are arranged in a stationary manner and connected to the ink mosaic print head 10 via a flexible line.
- the ink reservoir 11 which, in its structural design, corresponds to that shown in FIG.
- the ink supply container corresponds to the ink supply container, contains two flexible supply bubbles for receiving the ink liquid, which are connected via corresponding connection elements 13 to the supply system for the nozzle elements of the print head.
- the storage bubbles of the ink supply container 11 are filled with black ink, and in the case of multicolored ink printing devices, another ink supply container 12 is arranged above the ink supply container 11, said ink supply container having three storage bubbles which are filled with colored inks (magenta, cyan, yellow).
- the ink print head 10 is supplied solely from the ink reservoir 11, and ink is only removed from the ink reservoir 12 during color operation.
- an electronic memory 14 in the form of an integrated circuit (chip), which may have a structure such as that e.g. is used in so-called telephone cards in which, after the card has been inserted into a public telephone, the charges are debited by bit-by-bit deletion of a memory strip contained in the chip card.
- the electronic memory 14 is connected to the central control 16 of the ink printing device via latchable connection elements (not shown here) and a line 15.
- Each of the chips 14 connected to the ink supply containers serves to store the current filling state of the ink storage bubbles of the respective ink supply container in a storage area.
- each chip contains a memory bar 17 for each memory bubble contained, which can also be designed, for example, as an electronic counter and whose count or document status corresponds to the filling state of the assigned memory bubble.
- the ink supply container 11 with two storage bladders, two storage strips 17, contains the ink supply container 12 with three memory bubbles, three memory bars 17. The function of these memory bars or counters will be explained later.
- timers 18, ie timers are provided.
- the timers 18 can also be designed as electronic counters.
- the timers 18 contain information about the expiration time of the ink liquid. They are activated when the ink supply container is inserted for the first time or already during production, ie they start to run or count up from this point in time, their counter reading corresponding to the storage time of the ink liquid.
- the timers are an option and they can be supplied with ink independently of the network from an energy source (voltage source) integrated in the chip 14 (not shown here).
- a read-only memory 19 in the chips for receiving a code identifying the ink reservoir.
- This code is burned into the read-only memory when the ink reservoir is manufactured. Its content is checked in the ink printing device after the ink reservoir has been installed. Only after a positive check is the printer operation released by the central control 16.
- the read-only memory is designed as a memory, the coding of which cannot be changed after the first programming.
- the code can represent information about the type and content of the ink supply containers, their date of manufacture and expiry date etc. When the ink supply containers are locked in the holding device of the printing device, this code is then checked by the central controller 16.
- the central controller 16 is microprocessor-controlled and contains, as the central unit CPU, for example a microprocessor 80199.
- a data generator system connected to the central unit is a character generator ZG in the form of a fixed value memory which generates the with the aid of mosaic printing. contains bare drawing.
- a writable non-volatile memory (EE-PROM) SP which maintains its memory state even when the power supply is switched off.
- the memory SP serves, inter alia, as an intermediate memory and contains a number of memory areas SP1 to SP5 which corresponds to the number of memory bars 17 and which cooperate with the memory bars 17 in a manner described later.
- the memory SP can also be designed as a program memory for the control program of the printing device.
- An input / output module SCA is also coupled to the BUS system. This is a universal module which is common in printer control and which manages the communication of the printing device with the interface 20 at the data input of the printer device. This input / output module SCA also has the function of a converter for converting parallel data into serial data.
- Another memory RAM which is also connected to the input and output module SCA via the BUS system, serves as a buffer for the data arriving via the interface 20 before it is post-processed in the printer controller 16.
- the actual communication between the central control 16, the ink head 10 and the electronic memory 14 takes place via a module labeled TI-ASIC. It contains a corresponding logic structure in order to take over the control data for the ink mosaic print head 10 in parallel from the bus of the central control 16 and to convert them into control signals for the individual nozzles of the head 10.
- the entire arrangement works according to the following principle:
- the amount of ink ejected during the operation of ink printing devices can be determined by counting the individual droplets ejected.
- Each droplet has both an be ⁇ -determined constant volume, so that it is known how many droplets eg with the contents of a memory of the bubble Tin- tenvorratsbeloch 'can be generated lter.
- the droplets of each color ejected from the ink mosaic printhead are detected by the detection arrangement of the central control 16 in printing operation and, depending on the determined consumption, the information stored in the electronic storage device 14 about the filling state of the ink reservoir is adapted. This adaptation can be done, for example, by deleting the initially filled memory strips 17 bit by bit in accordance with the consumption.
- the chip In the manufacture of the ink reservoir, the chip is activated when the electronic storage element (chip 14) is inserted into the ink reservoir.
- This timer (timer) 18 is activated when the ink reservoir is manufactured and when it is assembled with the electronic storage element 14. If the timer has expired, there is a counter reading on the contacts on the surface of the container, ie on line 15, which corresponds to the "ink end" information.
- This information is queried via the TI-ASIC module and a warning device, for example in the form of a lamp 21, is activated on the printing device. At the same time, the start of printing is prevented. However, it is also possible to arrange a separate warning lamp or a separate display device, which immediately indicates the expiration date of the ink tank.
- the basic setting of the timer * in the chip 14 is set to the time of use of the ink liquid in the device. If the ink storage container has been stored for a correspondingly long time beforehand, this operating time may be less than the basic setting. After the timer has expired, "ink end" is shown via warning lamp 21 or a corresponding display, as already described.
- the TI-ASIC module detects the control pulses for the individual nozzles of the ink mosaic print head 10 and thus the number of the individual droplets ejected.
- the memory areas SP1 to SP5, which are designed as counters, are activated via the software.
- the counters SP1 to SP5 are assigned to the individual ink bubbles and thus to the different printing inks.
- the counters are circulation counters which return to their basic position after reaching a certain counter reading and start counting again.
- the counter capacity corresponds to a certain number of, for example, 10,000 ink droplets.
- the corresponding assigned memory strip 17 of the electronic memories 14 on the storage containers is bit by bit deleted via the module TI-ASIC.
- the counter reading of a counter device of the chip 14 assigned to the memory strip 17 is changed on the basis of a preset basic counter reading corresponding to the filled state of the storage container in accordance with the consumption of ink liquid. This change is irreversible, ie after the counter has expired or the bits on the data bar 17 have been "booked", reprogramming is not possible.
- Both the Counters in the device SP1 to SP5 as well as the counters in the chip 14 (data bar 17) are permanent, ie they are not reset when the ink printing device is interrupted from the power supply.
- the amount of ink consumed in cleaning procedures is also taken into account when noting the number of ejected ink droplets.
- the counter reading in the chip 14 reaches one, e.g. A counter reading corresponding to a minimum stock quantity (fully debited bit string 17), this counter reading is detected by the component TI-ASIC and a warning device, e.g. activated in the form of a lamp 21. This can e.g. happen that a flashing signal is emitted via the lamp 21. With the minimum ink supply contained in the ink supply containers at this point in time, the writing operation can still be maintained for a certain time. After reaching a counter reading at the end of the ink, i.e. the complete consumption of ink corresponds to the ink supply (taking into account a safety reserve), further printer operation is prevented via the TI-ASIC module and the lamp 21, which e.g. can then be switched to permanent light, this ink end is displayed.
- a warning device e.g. activated in the form of a lamp 21. This can e.g. happen that a flashing signal is emitted via the lamp 21.
- the electronic memories are designed in such a way that reprogramming is not possible. If the used ink reservoir is refilled with ink in an impermissible manner, the electronic memory 14 remains in its state corresponding to the "ink end". When such a refilled ink supply container is inserted into the ink printing device, the TI-ASIC module and the warning device 21 therefore indicate the end of the ink and prevent printing.
- the arrangement according to the invention has been described above with reference to a storage container for an ink printing device. However, it can also be used on ribbon cartridges of all kinds, be it ribbon cartridges with thermal ribbons for thermal transfer printing devices or ribbons for "impact printers.
- a chip 14 (electronic storage device) is attached to the ribbon cartridges in a manner not shown here
- a continuous transport monitoring of the ink ribbon for example by a device according to DE-PS 32 14 548.
- the ink ribbon in the ink ribbon cassette is moved from the supply spool to the unwinding spool
- the ink ribbon consumption is recorded by the electronics of the printing device via the control pulses of the print head and d he communicated electronic storage device 14 on the ribbon cartridges.
- the chip 14 (electronic storage device) counts the consumption until the ribbon supply is exhausted to such an extent that the ribbon cassette must be replaced.
- the consumption status of the ink ribbon cassette can be queried by the central controller 16 at any time during printing operation. If the counter reading in the chip 14 indicates the used state of the ink ribbon cassette, the printer electronics interrupt another printout in the manner described and a corresponding fault message is set.
- the arrangement described can also be used in electrophotographic or magnetic printing or copying devices.
- Modern printing or copying machines which are designed for use in the office have interchangeable toner storage containers which are replaced as a whole after the toner supply has been exhausted (DE-A-GM 87 05 870).
- an exchange of the entire developer station including the photoconductor drum is also provided.
- an electronic storage device can be arranged on the container in the manner described, which interacts with the central control of the electrophotographic printing or copying device. Since it is known how much toner is required on average for the coloring of a charge image, the toner consumption can be determined, for example, from the number of revolutions of the charge image carrier or from the measurement of the degree of coloration of the characters by means of an optical sensor.
- the electronic storage device counts the consumption of toner until the toner supply is exhausted to such an extent that the toner supply cassette must be replaced.
- the consumption status of the toner supply cartridge can be queried by the central control at any time during printing. If the counter reading in the chip shows the used state of the storage cassette, the central control system prevents further printing and, for example, a corresponding display is activated via a display.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ink Jet (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
Les réservoirs (11, 12) pour dispositifs d'impression, qu'il s'agisse de réservoirs d'encre, de cassettes à ruban encreur ou de réservoirs de toner, présentent un dispositif de stockage électronique (14) sous forme d'un chip, dans lequel sont mémorisées des informations sur l'état actuel du remplissage du réservoir et/ou d'autres données relatives au fonctionnement de l'imprimante, par exemple des dates de fin de validité du fluide d'impression. Une commande centralisée (16) du dispositif d'impression permet de détecter l'état de consommation en fluide d'impression et de le transmettre au chip (14). Le chip associé au réservoir réalise le comptage de la consommation jusqu'au moment où la réserve en fluide d'impression (liquide encreur, ruban encreur, toner) est épuisée, ce qui nécessite le changement de réservoir. On ne peut procéder à une nouvelle programmation du chip et, par voie de conséquence, à un nouveau remplissage du réservoir.The reservoirs (11, 12) for printing devices, whether they are ink reservoirs, ink ribbon cassettes or toner reservoirs, have an electronic storage device (14) in the form of a chip, in which are stored information on the current state of filling of the reservoir and / or other data relating to the operation of the printer, for example expiry dates of the printing fluid. A centralized control (16) of the printing device makes it possible to detect the state of consumption of printing fluid and to transmit it to the chip (14). The chip associated with the reservoir counts the consumption until the reserve of printing fluid (ink liquid, ink ribbon, toner) is exhausted, which requires changing the reservoir. It is not possible to carry out a new programming of the chip and, consequently, to refill the tank.
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE1988/000462 WO1990000974A1 (en) | 1988-07-25 | 1988-07-25 | Arrangement for printing devices for monitoring printing medium containers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0433280A1 true EP0433280A1 (en) | 1991-06-26 |
EP0433280B1 EP0433280B1 (en) | 1993-04-28 |
Family
ID=6819609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88907091A Expired - Lifetime EP0433280B1 (en) | 1988-07-25 | 1988-07-25 | Arrangement for printing devices for monitoring printing medium containers |
Country Status (5)
Country | Link |
---|---|
US (1) | US5365312A (en) |
EP (1) | EP0433280B1 (en) |
JP (1) | JP2752402B2 (en) |
DE (1) | DE3880694D1 (en) |
WO (1) | WO1990000974A1 (en) |
Cited By (1)
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USRE35751E (en) * | 1993-02-19 | 1998-03-24 | Xerox Corporation | Monitoring system with dual memory for electrophotographic printing machines using replaceable cartridges |
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WO1990000974A1 (en) | 1990-02-08 |
JP2752402B2 (en) | 1998-05-18 |
JPH04500482A (en) | 1992-01-30 |
EP0433280B1 (en) | 1993-04-28 |
DE3880694D1 (en) | 1993-06-03 |
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