Integrated ink jet print head identification system
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B41J-029/393
출원번호
US-0100350
(2002-03-18)
발명자
/ 주소
Edelen, John Glenn
Parish, George Keith
Rowe, Kristi Maggard
출원인 / 주소
Lexmark International, Inc
대리인 / 주소
Crockett, Mark P.Daspit, Jacqueline M.
인용정보
피인용 횟수 :
8인용 특허 :
17
초록▼
An apparatus provides identification information related to at least one ink jet print head in an ink jet printer. The apparatus includes a printer controller for providing a first identification data string comprising n number of bits, at least one of which has a first state, and no more than n-1 n
An apparatus provides identification information related to at least one ink jet print head in an ink jet printer. The apparatus includes a printer controller for providing a first identification data string comprising n number of bits, at least one of which has a first state, and no more than n-1 number of which have a second state different from the first state. Coupled to the printer controller is a first ink jet print head having a first serial input shift register. The first serial input shift register has at least n number of bit positions for receiving the n number of bits of the first identification data string. The first ink jet print head also includes at least n number of first latches, each of which is coupled to a corresponding one of the n number of bit positions of the first shift register. The n number of first latches are for latching the n number of bits of the first identification data string from the n number of bit positions of the first shift register. A first identification line, which is coupled to a predetermined one of the first latches, provides to the printer controller one of the n number of bits from the first identification data string that is latched into the predetermined one of the first latches. Based upon whether the bit provided on the first identification line has a first or second state, the printer controller determines whether the first print head is of a first type.
대표청구항▼
An apparatus provides identification information related to at least one ink jet print head in an ink jet printer. The apparatus includes a printer controller for providing a first identification data string comprising n number of bits, at least one of which has a first state, and no more than n-1 n
An apparatus provides identification information related to at least one ink jet print head in an ink jet printer. The apparatus includes a printer controller for providing a first identification data string comprising n number of bits, at least one of which has a first state, and no more than n-1 number of which have a second state different from the first state. Coupled to the printer controller is a first ink jet print head having a first serial input shift register. The first serial input shift register has at least n number of bit positions for receiving the n number of bits of the first identification data string. The first ink jet print head also includes at least n number of first latches, each of which is coupled to a corresponding one of the n number of bit positions of the first shift register. The n number of first latches are for latching the n number of bits of the first identification data string from the n number of bit positions of the first shift register. A first identification line, which is coupled to a predetermined one of the first latches, provides to the printer controller one of the n number of bits from the first identification data string that is latched into the predetermined one of the first latches. Based upon whether the bit provided on the first identification line has a first or second state, the printer controller determines whether the first print head is of a first type. irst and second voltage signals is both applied before the other one of said first and second voltage signals and removed before the other one of said first and second voltage signals. 27. Method according to claim 23, and comprising the steps of applying first and second voltage signals of equal duration and delayed in time relative to one another. 28. Method according to claim 23, and comprising the steps of applying first and second voltage signals that vary in magnitude with time. 29. Method according to claim 23, and comprising the steps of increasing said first voltage signal while decreasing said second voltage signal. 30. Method according to claim 23, and comprising the steps of applying first and second voltage signals that vary in a stepwise fashion from a first magnitude to a second magnitude and back to the first magnitude. 31. Method according to claim 23, wherein said apparatus comprises a multiplicity of channels each forming a said chamber and mutually spaced in an array direction normal to the length of the channels and separated one from the next by side walls extending in the lengthwise direction of the channels; a said actuator being associated with each said side wall and actuable to deflect the wall, thereby to effect droplet ejection from an associated channel; the first and second electrodes of each actuator terminating in one or the other of the channels separated by said side wall respectively. 32. Method according to claim 31, wherein a channel contains a common termination for electrodes of the two actuators associated with the two channel walls bounding said channel. 33. Method according to claim 32, and comprising the steps of alternately assigning successive channels of the array to one of two groups and alternately enabling each group for droplet ejection in successive cycles; applying to the common termination in channels belonging to the group that is enabled first voltage signals repeating at a first frequency; and applying to the common terminations of channels belonging to the group that is not enabled second voltage signals in accordance with droplet ejection input data. 34. Method according to claim 33, comprising the further steps of alternately assigning successive channels of an enabled group to first and second sub-groups; applying to the common terminations of channels belonging to said first sub-group a third voltage signal repeating at half said first frequency; applying to the common terminations of channels belonging to said second sub-group a fourth voltage signal also repeating at half said first frequency; said third and fourth voltage signals being in anti-phase. 35. Method according to claim 34, and wherein said first voltage signal comprises a stepwise voltage increase, followed by a stepwise voltage decrease at a time T thereafter, followed by a dwell at zero voltage again for a time T; said third and fourth voltage signals each comprising a stepwise voltage increase, followed by a stepwise voltage decrease at a time 2T thereafter, followed by a dwell at zero voltage again for a time 2T. 36. Method according to claim 34, and wherein said first voltage comprises a sawtooth voltage waveform having a period of repetition equal to time T; and wherein said third and fourth voltage signals each comprise a stepwise voltage increase, followed by a stepwise voltage decrease at a time T thereafter, followed by a dwell at zero voltage again for a time T. 37. Method according to claim 1, wherein at least one second signal is supplied to said actuator of said first channel during said droplet ejection period. 38. Method according to claim 37, wherein at least one first signal is supplied to said actuator of said second channel during said dro
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이 특허에 인용된 특허 (17)
Watrobski Thomas E. (Rochester NY) Wysocki Joseph J. (Webster NY) Tellier Thomas A. (Williamson NY) Stephany Joseph F. (Williamson NY) Poleshuk Michael (Webster NY) Kneezel Gary A. (Webster NY) LaDon, Electronically readable performance data on a thermal ink jet printhead chip.
Barbehenn George (Vancouver WA) Hulings James R. (Fort Collins CO) Badyal Rajeev (Corvallis OR) Allen Ross R. (Belmont CA) Saunders Michael B. (Corvallis OR), Integrated circuit printhead for an ink jet printer including an integrated identification circuit.
Matsuo Tetsushi,JPX ; Matumoto Kazuo,JPX, Printing apparatus having print head type detection for interchangeable and selectively mounted print heads having oppos.
Croley,Donald Fred; Fagan,Mark Walter; Jones,Brian Thomas; Mayo,Randall David, Method and apparatus for generating and assigning a cartridge identification number to an imaging cartridge.
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