序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 Auto-alignment system for a printing device EP98305955.1 1998-07-27 EP0894634A3 2000-02-02 Yamada, Akitoshi; Hirabayashi, Hiromitsu

A method for controlling an image printing device includes printing a plurality of test patterns, the density of each test pattern depending upon a measurement object, determining a relationship between image densities of a plurality of the printed test patterns, and acquiring information on the measurement object based on the determined relationship.

2 PRINTER FOR EFFECTING BIDIRECTIONAL PRINTING AND METHOD OF ADJUSTING THE PRINTING POSITION THEREFOR EP98940662.4 1998-08-31 EP0938977A1 1999-09-01 ENDO, Hironori, Seiko Epson Corporation

An adjustment value for printing deviation between forward and reverse printing passes is set for each width of printing paper. The printing deviation is adjusted by, for example, varying, in the main scanning direction, the frequency of the drive clock signal (CLK) applied to the print head (28). The drive clock signal frequency (fCLK) is individually set for each of a plurality of regions into which the main scanning range is divided.

3 Auto-alignment system for a printing device US901560 1997-07-28 US06089766A 2000-07-18 Akitoshi Yamada; Hiromitsu Hirabayashi
A method for controlling an image printing device includes printing a plurality of test patterns, the density of each test pattern depending upon a measurement object, determining a relationship between image densities of a plurality of the printed test patterns, and acquiring information on the measurement object based on the determined relationship.
4 Control for a matrix printing assembly US32117773 1973-01-05 US3838250A 1974-09-24 NESBITT D; NAAS H; SUTHERLAND J
A control for a matrix printing assembly to determine the character and spacing thereof in a data terminal comprising the combination of a mechanical linear strobe and an electronic timing circuit accurately controlling and positioning the stroke of each rod or stylus of the matrix printer.
5 Ruggedized typebar guide US3729080D 1971-06-01 US3729080A 1973-04-24 MUELLER H
A ruggedized typebar guide is disclosed comprising two spaced pivots and two guide dogs rotatably mounted to the pivots with each guide dog having spaced opposing cam surfaces respectively disposed along opposing sides of a typebar flight path. Shock absorbing means are provided permitting limited movement of the pivots in a direction substantially parallel the flight path upon rotation of the guide dogs. Means are also provided for rotating the guide dogs about the movable pivots upon passage of a typebar between the guide dogs along the typebar flight path to converge the two opposing cam surfaces towards one another a predetermined distance within the flight path to center the typebar.
6 Automatic position indicator US70334157 1957-12-17 US2930471A 1960-03-29 ROGGENSTEIN EDWIN O
7 Type aligning gauges for typewriters US49774355 1955-03-29 US2785475A 1957-03-19 HERBERT SIMPSON
8 Character aligning sheet US6931036 1936-03-17 US2126480A 1938-08-09 HARRY LANDSIEDEL
9 Type bar segment and anvil US71095334 1934-02-12 US2044641A 1936-06-16 SHEPARD HERBERT C
10 Type-writing machine. US1902285023 1902-06-02 US833281A 1906-10-16 ALEXANDER JESSE
11 Typewriter alining mechanism US753348D US753348A 1904-03-01
12 Type-writing machine. US1897642423 1897-06-26 US643786A 1900-02-20 BRACKELSBERG ERNST WILHELM
13 Multiple cartridge printhead assembly for use in inkjet printing system EP98302607.1 1998-04-02 EP0875379A3 1999-11-03 Marler, Jaren D.; Lee, Ted; Childers, Winthrop D.; Seu, Preston D.; Pawlowski, Norman E., Jr.

Described is a printing system including a first array of ink ejection elements (82) formed on a first substrate (88) surface for ejecting droplets of a first ink, a second array of ink ejection elements (82') formed on a second substrate (88') surface for ejecting droplets of a second ink, a memory element (78) associated with the first and second arrays of ink ejection elements contains parameters that relate droplet ejection characteristics of the first and second array of ink ejection elements. The droplet ejection characteristics may contain ink ejection alignment data that enables the calculation of the relative alignment between the first and second arrays of ink ejection elements such that droplets of the first ink can be effectively aligned with droplets of the second ink. Also, ink droplet volume data enables the calculation of the relative drop volume between the first and second arrays of ink ejection elements such that the printing system can provide hue control.

14 Auto-alignment system for a printing device EP98305955.1 1998-07-27 EP0894634A2 1999-02-03 Yamada, Akitoshi; Hirabayashi, Hiromitsu

A method for controlling an image printing device includes printing a plurality of test patterns, the density of each test pattern depending upon a measurement object, determining a relationship between image densities of a plurality of the printed test patterns, and acquiring information on the measurement object based on the determined relationship.

15 Multiple cartridge printhead assembly for use in inkjet printing system EP98302607.1 1998-04-02 EP0875379A2 1998-11-04 Marler, Jaren D.; Lee, Ted; Childers, Winthrop D.; Seu, Preston D.; Pawlowski, Norman E., Jr.

Described is a printing system including a first array of ink ejection elements (82) formed on a first substrate (88) surface for ejecting droplets of a first ink, a second array of ink ejection elements (82') formed on a second substrate (88') surface for ejecting droplets of a second ink, a memory element (78) associated with the first and second arrays of ink ejection elements contains parameters that relate droplet ejection characteristics of the first and second array of ink ejection elements. The droplet ejection characteristics may contain ink ejection alignment data that enables the calculation of the relative alignment between the first and second arrays of ink ejection elements such that droplets of the first ink can be effectively aligned with droplets of the second ink. Also, ink droplet volume data enables the calculation of the relative drop volume between the first and second arrays of ink ejection elements such that the printing system can provide hue control.

16 JPH038954B2 - JP10616887 1987-04-28 JPH038954B2 1991-02-07 GIUSETSUPE GUBAU; DOMENIKO ROANO; JOBANNI KYARANCHI
17 JPH0253233B2 - JP10616687 1987-04-28 JPH0253233B2 1990-11-16 GIUSETSUPE GUBAU; DOMENIKO ROANO; JOBANNI KYARANCHI
18 Serial printer JP14641076 1976-12-06 JPS5282518A 1977-07-09 KENESU AARU FURECHIETSUTO
A stabilization means for reducing the position excursions of the carriage of a serial impact printer during the printing operation. The stabilization means comprises at least two support members with at least one support member being mounted to each side of the carriage at a point above the carriage pivot point and extending downwardly and outwardly to at least one of the carriage mounting rails.
19 JPS49103534A - JP469374 1973-12-21 JPS49103534A 1974-10-01
20 PRINTER FOR EFFECTING BIDIRECTIONAL PRINTING AND METHOD OF ADJUSTING THE PRINTING POSITION THEREFOR EP98940662.4 1998-08-31 EP0938977B1 2006-06-07 ENDO, Hironori, Seiko Epson Corporation
The value for adjusting the printing misregistration between one way and the return way is determined for each of the printing papers having different widths. The printing misregistration is adjusted by, for example, changing the frequency of drive clock signal given to the print head in the direction of horizontal scanning. The frequency of drive clock signal is separately set for each of regions defined by dividing the horizontal scanning range.
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