摘要:
Disclosed are compounds of the formulae wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, and R13 are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, R10, R11, and R12 are alkylene, arylene, arylalkylene, or alkylarylene, and the chromogen moiety is an atom or group of atoms that impart color to the compound in the visible, infrared, or ultraviolet wavelength range.
摘要:
A printhead for printing ink includes a particulate filter manufactured from a polymer sheet such as a polyimide sheet. Filter openings within the particulate filter can be formed using a mask and a laser beam to ablate exposed portions of the polymer sheet. Embodiments of the present teachings can result in the formation smaller filter openings at a smaller pitch within the polymer sheet than, for example, stainless steel particulate filters, and thus more openings which cover a larger percentage of the filter surface for a given filter size, which can result in a reduction of fluid pressure within the printhead. Thus smaller filter openings for improved filtering of smaller particulates can be formed while maintaining a sufficient ink flow at a sufficiently low pressure within the printhead during operation.
摘要:
A banding adjustment method for an ink jet imaging device having a plurality of printheads comprises printing a plurality of test bands, each test band being printed by a plurality of printheads such that each printhead of the plurality prints a section of each test band. The drop mass generated by each printhead of the plurality is selectively adjusted between a default drop mass and an adjusted drop mass to print each test band of the plurality such that the plurality of printed test bands have various combinations of sections having the default drop mass and the adjusted drop mass. The user is then prompted to select a test band from the plurality of printed test bands.
摘要:
A drop emitting device including a first linear array of columnar arrays of first nozzle pairs and a second linear array of columnar arrays of second nozzle pairs, wherein the first linear array and the second linear array extend along an X-axis, and wherein the second linear array is adjacent the first linear array such that each first nozzle pair has an associated second nozzle pair displaced therefrom along a Y-axis that is orthogonal to the X-axis. The columnar arrays of first nozzle pairs and the columnar arrays of second nozzle pairs extend obliquely to the X-axis.
摘要:
A drop emitting device including a first linear array of columnar arrays of first nozzle pairs and a second linear array of columnar arrays of second nozzle pairs wherein the first linear array and the second linear array extend along an X-axis, and wherein the second linear array is adjacent the first linear array such that each first nozzle pair has an associated second nozzle pair displaced therefrom along a Y-axis that is orthogonal to the X-axis. The columnar arrays of first nozzle pairs and the columnar arrays of second nozzle pairs extend obliquely to the X-axis.
摘要:
A printhead for printing ink includes a particulate filter manufactured from a polymer sheet such as a polyimide sheet. Filter openings within the particulate filter can be formed using a mask and a laser beam to ablate exposed portions of the polymer sheet. Embodiments of the present teachings can result in the formation smaller filter openings at a smaller pitch within the polymer sheet than, for example, stainless steel particulate filters, and thus more openings which cover a larger percentage of the filter surface for a given filter size, which can result in a reduction of fluid pressure within the printhead. Thus smaller filter openings for improved filtering of smaller particulates can be formed while maintaining a sufficient ink flow at a sufficiently low pressure within the printhead during operation.
摘要:
Disclosed are compounds of the formulae wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, and R13 are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, R10, R11, and R12 are alkylene, arylene, arylalkylene, or alkylarylene, and the chromogen moiety is an atom or group of atoms that impart color to the compound in the visible, infrared, or ultraviolet wavelength range.
摘要:
A banding adjustment method for an ink jet imaging device having a plurality of printheads comprises printing a plurality of test bands, each test band being printed by a plurality of printheads such that each printhead of the plurality prints a section of each test band. The drop mass generated by each printhead of the plurality is selectively adjusted between a default drop mass and an adjusted drop mass to print each test band of the plurality such that the plurality of printed test bands have various combinations of sections having the default drop mass and the adjusted drop mass. The user is then prompted to select a test band from the plurality of printed test bands.
摘要:
A printhead reservoir has an input ink port and a chamber to receive ink from an ink source through the input ink port. The reservoir also has a filter in a path between the input ink port and the chamber. A printhead includes a reservoir having an input ink port, a chamber to receive ink from an ink source through the input port and a filter in a path between the input port and the storage plate. The printhead also includes an array of jets to draw ink from the chamber and control circuitry to control the jets so as to selectively output ink through the jets onto a substrate. A reservoir has a filter to receive ink, a vented chamber to collect ink received from the filter and at least one jet to receive ink from the vented chamber. The vented chamber is between the ink filter and the fluid path to the jets in order to remove the filter portion of the pressure drop to the jets.
摘要:
Gray scale ink jet printing method and apparatus produce a high quality image having varying color intensities. This is achieved by mixing a colored phase change ink with varying amounts of a clear phase change ink base, thereby producing multiple gray scale levels of each color. The mixing either can be performed prior to placement of the phase change ink in the printer, or can be performed within the printer to produce different levels of color intensity during the printing process.