Abstract:
An example of an imaging medium includes a substrate, a color-forming layer on the substrate, and a registration mark. The color-forming layer includes a repeated pattern. A repeat of the pattern includes four adjacent color-forming stripes including a black-forming stripe, a cyan-forming stripe, a magenta-forming stripe, and a yellow-forming stripe, or a grid of four color-forming sections including i) a color-forming section selected from the group consisting of black-forming, cyan-forming, light cyan-forming, yellow-forming, magenta-forming, and light magenta-forming, ii) a cyan-forming section, iii) a magenta-forming section, and iv) a yellow-forming section.
Abstract:
In an example of recording medium identification method, a digital image of a line or a dot printed on a recording medium with a printer is captured by an image sensor. From the digital image, a microprocessor (operatively connected to the image sensor), digitally measures a width of the line, a diameter of the dot, an area of the dot, or a perimeter of the dot. The microprocessor identifies a type of the recording medium based on the width, the diameter, the area, or the perimeter. In response to the identification of the type of the recording medium, a print setting for the type of the recording medium is selected.
Abstract:
The present disclosure is drawn to a pigment-based inkjet ink and methods. The inkjet ink includes water; from 2 wt% to 9 wt% pigment solids; from 0.05 wt% to 2 wt% of an acetylenic diol non-ionic surfactant; from 0.05 wt% to 2 wt% of a second surfactant. The second surfactant can be a polysorbate having at least 50% lipophilic oleic acid groups and having an HLB value of less than 15, or a C 12 -C 18 polyoxyethylene glycol ether having an ethylene oxide number less than 20, or a perfluoropolyether including a polyethylene glycol primary alcohol or diol. The inkjet ink also includes from 5 wt% to 50 wt% of an organic solvent system comprising triethylene glycol and a cyclic amide.
Abstract:
The present disclosure is drawn to inkjet inks and related methods. The inkjet ink includes water, from 5 wt% to 50 wt% of an organic solvent system, from 2 wt% to 9 wt% pigment solids, from 0.1 wt% to 3 wt% polyurethane binder, and from 0.4 wt% to 1.5 wt% of an oleyl or stearyl type polyoxyethylene glycol ether surfactant.
Abstract:
An ink for use in combination with, for example, an ink-jet printer. The ink comprises a carrier, a colorant in the carrier, and a component selected from a group consisting of amines, amides, and combinations thereof.
Abstract:
A system including: a first fluid ejector having a first orientation relative to vertical; and a second fluid ejector having a second, different orientation relative to vertical, wherein the system provides a first nozzle clearing sequence to the first fluid ejector based on the first orientation and a second nozzle clearing sequence to the second fluid ejector based on the second orientation.
Abstract:
The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 1 wt% to 9 wt% pigment dispersed in the aqueous liquid vehicle by an ionic polymeric dispersant associated with pigment, from 0.5 wt% to 5 wt% non-ionic polymeric binder having a weight average molecular weight from 400 Mw to 20,000 Mw, and from 0.1 wt% to 1.5 wt% monovalent salt.
Abstract:
The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 2 wt% to 7 wt% self-dispersed pigment dispersed in the aqueous liquid vehicle, and from 0.1 wt% to 1 wt% monovalent salt. The self-dispersed pigment to monovalent salt weight ratio in the ink composition can be from 3:1 to 35:1.
Abstract:
The present disclosure is drawn to ink compositions comprising from 1 wt% to 8 wt% of a colored pigment and a polymeric dispersant. The polymeric dispersant can be associated with the pigment and the weight ratio of the polymeric dispersant to pigment can be less than 0.33. The polymeric dispersant can have hydrophilic moieties and hydrophobic moieties and an acid number from about 40 to about 180. The ink composition can have an effective charge stabilization from about 0.3 to about 1.8 that is calculated based on a product of the acid number of the polymeric dispersant, the polymer dispersant to pigment weight ratio, and the pigment load in the ink.
Abstract:
Compositions and systems for production of color images with a fluoran leuco dye having a latent developer are disclosed and described. A color forming composition or composite can include a polymer matrix, a thermally modifiable fluoran leuco dye having a latent developer attached thereto, and a radiation absorber. The thermally modifiable fluoran leuco dye can be developable upon the color forming composition being contacted with electromagnetic radiation which causes the radiation absorber to become energized, so that the energized radiation absorber causes the latent developer to undergo rearrangement to produce an intermediate dye form having a phenolic substituent. The intermediate dye can then undergo an acid catalyzed ring opening to produce a colored dye form.