Abstract: An ink jet printing method, comprising the steps of:

Abstract: An inkjet recording element comprising a support having thereon in order:

Abstract: An ink jet recording element comprising a support having thereon a porous image-receiving layer comprising particles, a poly(vinyl alcohol) binder and a crosslinking agent, the particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm, and the crosslinking agent being present in an amount of at least about 20 weight % of the poly(vinyl alcohol) binder.

Abstract: An ink jet printing method comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element comprising a support having thereon a porous image-receiving layer comprising particles, a poly (vinyl alcohol) binder and a crosslinking agent, the particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm, and the crosslinking agent being present in an amount of at least about 20 weight % of the poly (vinyl alcohol) binder; C) loading the printer with an ink jet ink composition; and D) printing on the image-receiving layer using the ink jet ink composition in response to the digital data signals.

Abstract: An ink jet recording element comprising a support having thereon a porous image-receiving layer comprising particles and a poly(vinyl alcohol) binder, the particles comprising a fumed metallic oxide, and the binder having an average viscosity greater than about 25 cp at 4% solids in an aqueous solution at 20° C.

Abstract: An ink jet printing method comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element comprising a support having thereon a porous image-receiving layer comprising particles, a poly(vinyl alcohol) binder and a crosslinking agent, the particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm, and the crosslinking agent being present in an amount of at least about 20 weight % of the poly(vinyl alcohol) binder; C) loading the printer with an ink jet ink composition; and D) printing on the image-receiving layer using the ink jet ink composition in response to the digital data signals.

Abstract: An inkjet recording element comprising a support having thereon a porous image-receiving layer comprising:

Abstract: An ink jet printing method, including the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element including a support having thereon in order: I) a porous base layer including particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm and which are dispersed in a binder; and II) a porous image-receiving layer including: (a) particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm; and (b) water insoluble, cationic, polymeric particles comprising at least about 20 mole percent of a cationic mordant moiety; the thickness of layer I) being between about 35 and about 50 &mgr;m and the thickness of layer II) being between about 2 and about 6 &mgr;m; C) loading the printer with an ink jet ink composition; and D) printing on the image-receiving layer using the ink jet ink composition in

Abstract: An ink jet printing method is described. It comprising the steps of: providing an ink jet printer that is responsive to digital data signals; loading the printer with ink receptive substrates; loading the printer with an aqueous ink jet ink, said ink A) comprising a pigment, an aqueous carrier and potassium N-methyl-N-oleoyl taurate; and B) having a surface tension of 20 to 60 dynes/cm at 25.degree. C., a viscosity of 1 to 10 centipoise at 25.degree. C. and a particle size of less than 1.0 .mu.m; and printing on the ink receptive substrate in response to the digital data signals.

Abstract: A method of making pigment concentrate particles having pigment uniformly dispersed in a polymer and exhibiting a controlled morphology and narrow particle size distribution. The method involves dispersing pigment particles in a pigment dispersant liquid to form a first dispersion phase; blending the first dispersion phase with a binder to produce a second dispersion phase; mixing the second dispersion phase under sufficient shear to produce a suspension of small dispersion phase droplets in an immiscible suspending liquid; allowing the small dispersion phase droplets in the suspension to coalesce to a larger size at which substantially no further coalescence can occur; mixing the suspension of coalesced droplets with an extracting liquid to remove the pigment dispersant liquid from the coalesced droplets; and isolating the resulting pigment concentrate particles.

Abstract: Powders suitable as electographic toner and/or carrier particles and other powders which utilize a liquid dispersant are produced by limited coalescence techniques. The dispersant is removed by mixing the suspension of coalesced droplets with a sufficient amount of an extracting liquid to cause the dispersant to diffuse out of the coalesced droplets into the extracting liquid.

Abstract: New electrostatographic toners and developers are provided containing novel charge control agents comprising ester-containing quaternary pyridinium salts having the structure: ##STR1## wherein R.sub.1 is alkyl or aryl, X is CH.sub.2n, Y is hydrogen, alkyl, alkoxy or halogen, Z.crclbar. is an anion and n is an integer from 2 to 6.Such ester-containing quaternary pyridinium salts also cause toner particles containing them to display lower fusing temperatures and improved adhesion indexes.

Abstract: Sheet feed apparatus including a scuff feeder for reliably transporting sheets from the bottom of a stack of sheets without marking of the sheets. The sheet transport apparatus comprises a retard device, located in contact with the lead edge, in the direction of sheet feed, of a sheet stack for preventing double feeding of sheets from the sheet stack. A scuff feed belt is located to have a run extending in the direction of sheet feed substantially above the surface of the tray and below the retard device to form a sheet separation nip with the retard device. The run of the scuff feed belt presents an area of contact with the sheet stack to carry about 50% of the weight of the sheet stack. Additionally, the scuff feed belt of the scuff feeder and the retard device respectively have a plurality of grooves oriented in the direction of sheet feed.

Abstract: New ester-containing quaternary pyridinium salts are provided having advantageous utility as charge control agents in electrostatographic toners and developers. The salts have the structure: ##STR1## wherein R.sub.1 is alkyl or aryl, X is --CH.sub.2 --.sub.n, Y is hydrogen, alkyl, alkoxy or halogen, Z.sup..crclbar. is an anion and n is an integer from 2 to 6.Such ester-containing quaternary pyridinium salts also cause toner particles containing them to display lower fusing temperature and improved paper adhesion indexes.

Abstract: New ester-containing quaternary pyridinium salts are provided having advantageous utility as charge control agents in electrostatographic toners and developers. The salts have the structure: ##STR1## wherein R.sub.1 is alkyl or aryl, X is --CH.sub.2 --.sub.n, Y is hydrogen, alkyl, alkoxy or halogen, Z.crclbar. is an anion and n is an integer from 1 to 6.Such ester-containing quaternary pyridinium salts also cause toner particles containing them to display lower fusing temperatures and improved paper adhesion indexes.

Abstract: Toner particles comprising a polyester binder and a charge control agent are provided wherein such agent is a quaternary ammonium salt having one or more ester-containing moieties. Such an ester-containing salt causes toner particles to display lower fusing temperature, improved paper adhesion indexes, and improved polyester binder compatibility compared to nonesterified salts.

Abstract: New electrostatographic toners and developers are provided containing novel charge control agents comprising ester-containing quaternary ammonium salts having the structure: ##STR1## wherein R.sub.1 is alkyl or aryl, R.sub.2 is alkyl or aryl, R.sub.3 is alkylene, arylene or arylendialkylene, R.sub.4 is alkyl, aryl or aralkyl, R.sub.5 is alkyl or aryl, R.sub.6 is alkyl, aryl, or aralkyl, R.sub.7 is alkyl or aryl, X is ##STR2## Z.sup..crclbar. is an anion and n is an integer from 2 to 6. Such ester-containing quaternary ammonium salts also cause toner particles containing them to display lower fusing temperatures and improved paper adhesion indexes.

Abstract: New electrostatographic toners and developers are provided containing novel charge control agents comprising amide-containing quaternary ammonium salts having the structure: ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.6 alkyl or aryl, R.sub.2 and R.sub.3, which can be the same or different, are alkyl or aryl, R.sub.4 is alkyl, aryl or aralkyl, R.sub.5 is hydrogen or alkyl, X is --CH.sub.2).sub.n, Z.sup..crclbar. is an anion and n is an integer from 2 to 6.Such amide-containing quaternary ammonium salts also cause toner particles containing them to display lower fusing temperatures and improved paper adhesion indexes.

Abstract: New electrostatographic toners and developers are provided containing novel charge control agents comprising novel ether-containing quaternary ammonium salts having the structure: ##STR1## wherein R.sub.1 is a alkyl or aryl, R.sub.2 and R.sub.3, which can be the same or different, are alkyl or aryl, R.sub.4 is alkyl, aryl or aralkyl, X is ##STR2## Z.sup..crclbar. is an anion and n is an integer from 2 to 6. Such ether-containing quaternary ammonium salts also cause toner particles containing them to display lower fusing temperatures and improved paper adhesion indexes.

Abstract: Toner particles comprising a polyester binder and a charge control agent are provided wherein such agent is a quaternary ammonium salt having one or more ester-containing moieties. Such an ester-containing salt causes toner particles to display lower fusing temperature, improved paper adhesion indexes, and improved polyester binder compatibility compared to nonesterified salts.