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31. 发明专利

JPH09216428A PRINTER EQUIPPED WITH HIGH BAND WIDTH COMPRESSION ARCHITECTURE 失效
公开(公告)号：JPH09216428A
公开(公告)日：1997-08-19
申请号：JP28723596
申请日：1996-09-24
申请人： LEXMARK INT INC
发明人： BURAIAN RESURII ESHINTON , JIYON FURANSHISU GOSUTOMUSUKI , JIEFURII ARAN MINITSUKU , KURISUTOFUAA MAAKU SONGAA
IPC分类号： B41J5/30 , G06F3/12 , G06F17/21 , H04N1/41
摘要： PROBLEM TO BE SOLVED: To provide a printer equipped with a high band width compression architecture printing a bit map based on data without too using a memory. SOLUTION: In order to process a full-color bit map for printing and other bit map much in data quantity, a data processing routine determines whether the block in the data within a page is a color, that is, a single value. This data is stored in a DRAM 28 in a form of one bit per a pixel. Other block is stored in a form of 8 bits per a pixel. Subsequently, a table defining the continuous order in a page is formed. Next, an ASIC 32 transfers pixel data to a video RAM 40 along with 8 bits restored to the data stored in a form of one bit per a pixel in printing order. The data applied to the ASIC is released from compression.

32. 发明专利

JPH09193404A NOZZLE PLATE FOR INK JET PRINTING 失效
公开(公告)号：JPH09193404A
公开(公告)日：1997-07-29
申请号：JP2103797
申请日：1997-01-20
申请人： LEXMARK INT INC
发明人： ASHIYOKU MAASHII , GEERII REIMONDO UIRIAMUSU
IPC分类号： B41J2/135 , B41J2/16 , C23C14/14
摘要： PROBLEM TO BE SOLVED: To provide a nozzle plate reduced in leakage and the necessity of maintenance, imparting more excellent printing quality and excellent in abrasion resistance and the resistance force against a wide range of temp. SOLUTION: This nozzle plate is coated with a polymer low in surface energy and the surface part used as the adhesive surface of the coating layer is further coated with tantalum bringing about excellent adhesiveness in a wide range of environment in a thickness of 50-500Å. The nozzle plate is produced by coating a master sheet having a plurality of individual and separate nozzle plates at first by chemical vapor deposition and subsequently applying tantalum to the adhesive surface thereof by sputtering coating.

33. 发明专利

JPH09131885A INK JET PRINT HEAD HAVING PRINT HEAD WIPER CLEANING ZONE ANDPRINTING DEVICE HAVING SAID PRINT HEAD 失效
公开(公告)号：JPH09131885A
公开(公告)日：1997-05-20
申请号：JP29772796
申请日：1996-10-21
申请人： LEXMARK INT INC
发明人： FURETSUDO YANGU BURANDON , BURUUSU DEBITSUDO GIBUSON , EDOMANDO FURIN JIEIMUSU SAADO , MAIKERU DEBITSUDO RATAKA
IPC分类号： B41J2/14 , B41J2/165 , B41J2/175
摘要： PROBLEM TO BE SOLVED: To effectively remove excessive ink from a printing head wiper by arranging a plurality of ribs in adjacent relation to the wall region in an ink tank formed from a receptacle and setting the orientation of the respective ribs to specific relation with respect to two axes crossing each other at a right angle. SOLUTION: A printing head 50 is equipped with a main body forming a receptacle providing an ink tank having a base wall 54 and a region 56 for attaching a nozzle plate having a plurality of ink jet nozzles is provided to the base wall. The printing head 50 has a pair of wiper cleaning zones 61a, 62a adjacent to the wall region 56. The respective cleaning zones 61a, 62a contain a plurality of ribs 62 and cavities 64. The ribs 62 are allowed to extend within the plane of the outer surface 70 of the base wall to be related to the Y-axis traversing the wall region 56 and demarcated by the X-axis crossing the Y-axis at a right angle by forming a symmetric axis within the plane of the outer surface 70. The length direction of the ribs 62 is set so as not to cross both axes X, Y at a right angle.

34. 发明专利

JPH09130608A HALFTONING METHOD USING MINIMUM DENSITY DISPERSION TOGETHER WITH PROBABILITY DITHER RING 失效
公开(公告)号：JPH09130608A
公开(公告)日：1997-05-16
申请号：JP24699496
申请日：1996-08-29
申请人： LEXMARK INT INC
发明人： BURAIAN EDOWAADO KUUPAA , TOOMASU ANSONII NAITO , SHIYAAN TEIMOSHII RABU
IPC分类号： G06T5/00 , H04N1/405
摘要： PROBLEM TO BE SOLVED: To eliminate a visual pattern caused by fluctuation in dot density by applying addition or subtraction to a dot profile array, shifting contents of a delta density array and adding the result to contents of accumulation density sum array. SOLUTION: A preferable dither array in use is a distributing dot probability dither array and a half-tone image is efficiently generated from a gray scale image by directly comparing picture element values in the gray scale image with values of corresponding positions of a dither array. An example of a 4×4 dither array having numerals of 0 to 15 is shown in caption 1. A set of three different dot profiles at three different gray levels used to generate a dither array is shown is Fig. B. The dot profile 33 corresponds to a gray level 3, the dot profile 35 corresponds to a gray level 5, and the dot profile 38 corresponds to a gray level 8.

35. 发明专利

JPH09118017A METHOD FOR FORMING NOZZLE STRUCTURE OF INK-JET PRINT HEAD 失效
公开(公告)号：JPH09118017A
公开(公告)日：1997-05-06
申请号：JP24554296
申请日：1996-08-28
申请人： LEXMARK INT INC
发明人： TOONIYA HARISU JIYAKUSON , SUTEIIBUN ROBAATO KONPURIN , ASHIYOKU MAASHII , GEERII REIMONDO UIRIAMUSU
IPC分类号： B41J2/135 , B41J2/16
摘要： PROBLEM TO BE SOLVED: To produce a highly automated ink jet printing head. SOLUTION: A composite structure containing a nozzle layer 10 and an adhesive layer 24 is provided and a polymeric sacrifice layer 28 is applied to the adhesive layer. Laser ablation is applied to the coated composite structure to form one or more nozzle 20 to the structure and, subsequently, the sacrifice layer is removed. This sacrifice layer is pref. composed of a water-soluble polymer and most pref. composed of polyvinyl alcohol and water is injected to the sacrifice layer until the sacrifice layer is substantially removed from the adhesive layer.

36. 发明专利

JPH08300688A PRINT HEAD AND MANUFACTURE OF PRINT HEAD BY ONE SHOT INJECTION MOLDING 失效
公开(公告)号：JPH08300688A
公开(公告)日：1996-11-19
申请号：JP12654996
申请日：1996-04-23
申请人： LEXMARK INT INC
发明人： FURETSUDO YANGU BURANDON , ROBAATO AANORUDO KURISUCHIYANS , KAATEISU REI DOROOJIE , ROORENSU RATSUSERU SUCHIYUWAAD , GEERII REIMONDO UIRIAMUSU
IPC分类号： B41J2/16 , B41J2/175
摘要： PROBLEM TO BE SOLVED: To prevent the leakage of ink from an ink container by forming a rigid monolithic frame surrounding the opening part extending from a first surface to a second surface and having the bonding surface facing to the first and second surfaces, and fixing respective flexible films to both surfaces to close the opening part. SOLUTION: A frame 50 is formed so as to have two continuous support shelves or bonding surfaces 68, 69 isolated from each other and surrounding an opening part 56, those bonding surfaces are opposed to each other, the surface 68 is turned toward the first surface 58 of the frame, and the surface 69 is turned toward the second surface thereof. After the frame 50 is formed, an adhesive bonding material 70 is applied to the bonding surfaces 68, 69, and flexible films 52, 52' are arranged at a predetermined position to be bonded and fixed to the surfaces 68, 69 by the adhesive bonding material 70. Since the frame is molded integrally, the interface between two molded parts is eliminated and a problem of an ink leak at the interface attached thereto is eliminated.

37. 发明专利

JPH08272127A BASE MATERIAL FOR HEAT FUSING 失效
公开(公告)号：JPH08272127A
公开(公告)日：1996-10-18
申请号：JP5096096
申请日：1996-02-14
申请人： LEXMARK INT INC
发明人： JIYAN ROOZU HIIGU , RORUFUE FURANKU KURAKASU , ASHIYOKU MAASHII , SUTEFUAN TOTSUDO ORUSON , JIIN MARII SARUDANHAASHIN , RITA SHIYARUMA , AJIYAI KANUBUHAI SUSAA , RICHIYAADO BAABAA WATOKINSU , JIYOO UIRIAMU UUZU
IPC分类号： G03G15/20 , D21H19/24 , G03G7/00
摘要： PROBLEM TO BE SOLVED: To provide base material for heat fixing excellent in toner image heat-fixing property. SOLUTION: Base material such as paper or a transparent body receiving toner to be heat-fixed has ionomer resin on its outer surface. In general application, an outer layer is formed of a mixture of ionomer resin and non-ionomer resin such as a styrene-acrylic acid copolymer, and the components of the toner is molecularly entangled with the mixture at the time of heat fixing. The fusing point of ionomer resin rises due to irradiation so as to prevent layer separation. As a result, an obtained image adheres powerfully to the base material and also has high quality.

38. 发明专利

JPH08224894A CARTRIDGE FOR INK JET PRINTER WITH VENTILATION MEANS 失效
公开(公告)号：JPH08224894A
公开(公告)日：1996-09-03
申请号：JP32823795
申请日：1995-11-22
申请人： LEXMARK INT INC
发明人： FURETSUDO YANGU BURANDON , KAATEISU REI DOROOJIE
IPC分类号： B41J2/165 , B41J2/175
摘要： PROBLEM TO BE SOLVED: To reduce a pressure change possibly brought about to an area between a cartridge and a cap member when the cartridge for an ink jet printer is in a cap state or non cap state. SOLUTION: Vent passages 70 and 72 of a cartridge main body 12 are formed as a plurality of grooves to one face of the cartridge main body 12. Opening sides of the grooves are closed by an adhesive preform which attaches a tab circuit member to the one face. One end of each of the vent passages 70 and 72 is open to the atmosphere at a second face of the cartridge main body 12 underneath part of the tab circuit member which is not adhesively attached to the second face. A second end of each vent passage extends into a region of the first face which is not covered by the adhesive preform and the tab circuit member, so that the vent passages communicate with the region which is sealed when a cap member is brought in contact with the cartridge.

39. 发明专利

JPH0883210A APPARATUS WITH ELECTRONIC DATA PROCESSOR 失效
公开(公告)号：JPH0883210A
公开(公告)日：1996-03-26
申请号：JP9777095
申请日：1995-03-30
申请人： LEXMARK INT INC
发明人： GUREGORII JIEE SHIYAAUTSUDO , DEIBUIDO DABURIYU MAAFUI
IPC分类号： G06F12/02
摘要： PURPOSE: To provide unique approach improving memory performance by speedily making up for a weak point in search allowing considerable number of return memories to intervene by a calculating over head more elementary than a simple disorder system, permitting precise assigning strategy and avoiding performance restriction within a memory system by the influence of fragmentation. CONSTITUTION: In an electronic data processor, a return memory block 3 is linked by an address pointer starting from the pointer of a return memory block 3. Each painter in a table 1 specifies a memory within a prescribed size range varying by the integral power of 2. A memory block specified by each table painter is arrayed by the order of sizes (alternate corresponding to the using frequency). As the search of a memory of a necessitated size is limited by the memory block within the size range, search is extremely efficient. In addition, though a return memory block 7 of the same size as the block 3 does not exist in an array list, it is specified by the block 3 of the same size and used when the size block is selected.

40. 发明专利

JPH0858163A PRINTER 失效
公开(公告)号：JPH0858163A
公开(公告)日：1996-03-05
申请号：JP21011395
申请日：1995-07-26
申请人： LEXMARK INT INC
发明人： AREN PII JIYONSON , KURISUTEII EE UESUTO , EDOWAADO DABURIYU YOHON JIYUNI
IPC分类号： B41J5/30 , G06F3/12 , G06K15/02
摘要： PROBLEM TO BE SOLVED: To provide an improved printer equipped with an on-demand form printing mode for instantaneously printing a form of every kind without the reference to a host computer or the interposition of the host computer. SOLUTION: A printer has not only a mode printing a form of every kind without referring to a host computer or performing the interruption of the host computer but also function for instantaneously printing one or more of a plurality of forms. The page data of a plurality of the forms are stored in a flash memory 19 in a form of a high level language. In starting the mode of a plurality of forms, at least the first listed document is immediately prepared by the control data processor 19 of the printer in a bit mapped form for printing. A plurality of documents are listed on a control panel by name for ready selection for printing.

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