Canon Kabushiki Kaisha

Reo Tagawa

Yoshihiro Nakagawa

Tsutomu Shimano

Takashi Matsui

Masao Suzuki

Kenji Aoki

Kenta Kamikura

Naoya Isono

Harumi Takada

Taku Shimoda

Masatake Tanaka

Shiro Kuroki

Sara Yoshida

In a host computer, a print processor generates, in a drawing region of a memory device context, additional raster data for drawing an additional drawing in addition to drawing information regarding a logical page included in an Enhanced Metafile Format (EMF) spool file, and a graphics driver (GD) module of a printer driver combines document raster data generated in a drawing region of a printer device context with the additional raster data, and generates print data based on post-combination raster data.

Information processing apparatus additional drawing processing in front of drawing content issued by an application

Provided is a toner has a toner particle containing a binder resin and is characterized in that the binder resin contains a polymer A, which is a polymer of a composition containing a first polymerizable monomer, a second polymerizable monomer and a crosslinking agent, the first polymerizable monomer is at least one monomer selected from the group consisting of (meth)acrylic acid esters having an alkyl group with 18 to 36 carbon atoms, the crosslinking agent has two or more polymerizable double bonds, a content of the first polymerizable monomer in the composition is 5.0 to 60.0 mol %, a content of the second polymerizable monomer is 20.0 to 95.0 mol %, and when the SP values of the first polymerizable monomer, the second polymerizable monomer and the crosslinking agent are denoted by SP, SPand SP, respectively, the formulae 0.60&#x2264;(SP&#x2212;SP)&#x2264;15.00 and SP&#x3c;SP&#x3c;(SP+3.00) are satisfied.

Toner and method for producing toner

A toner, including a toner particle that contains a binder resin and a release agent, wherein the binder resin contains a polymer A, the polymer A including a first monomer unit derived from a first polymerizable monomer and a second monomer unit derived from a second polymerizable monomer different from the first polymerizable monomer; the first polymerizable monomer is selected from (meth)acrylic acid esters having a Calkyl group; the toner has a first monomer unit content and a second monomer unit content in the polymer A which are within specific ranges, and assuming that an SP value of the first monomer unit is taken as SPand an SP value of the second monomer unit is taken as SP, the formula (1) below is satisfied, and the molecular weight of the release agent is at least 1,000.3.00&#x2264;(SP&#x2212;SP)&#x2264;25.00&#x2003;&#x2003;(1)

Toner

The toner has a toner particle in which a toner core containing a binder resin is coated with a shell layer, wherein the binder resin contains a polymer A that has a first monomer unit and a second monomer unit; the first unit is derived from (meth)acrylate ester having an alkyl group having 18 to 36 carbon atoms; the content of the first monomer unit in the polymer is 5.0 to 60.0 mol %; the content of the second monomer unit is 20.0 to 95.0 mol %; the following formula (1) is satisfied when the SP value of the first unit is denoted by SPand the SP value of the second unit is denoted by SP; and the toner core is coated with a highly uniform shell over at least 90% of the circumference of the toner cross section;3.00&#x2264;()&#x2264;25.00&#x2003;&#x2003;(1).

Toner, including: a toner particle that contains a binder resin and a wax, wherein the binder resin includes an amorphous resin A, and, in dynamic viscoelasticity measurement of the toner, when the temperature at which the loss elastic modulus G&#x2033; measured at a frequency of 1 Hz becomes 1.00&#xd7;10Pa is set as T(1 Hz), when the temperature at which the loss elastic modulus G&#x2033; measured at a frequency of 20 Hz becomes 1.00&#xd7;10Pa is set as T(20 Hz), and when the maximum value of the ratio (tan &#x3b4;) of the loss elastic modulus G&#x2033; with respect to the storage elastic modulus G', measured at a frequency of 20 Hz, in a range of from 60&#xb0; C. to 90&#xb0; C. is set as tan &#x3b4;(P), the toner satisfies T(20 Hz)&#x2212;T(1 Hz)&#x2264;7.0&#xb0; C., 0.80&#x2264;tan &#x3b4;(P)&#x2264;1.90, 60&#xb0; C.&#x2264;T(1 Hz)&#x2264;80&#xb0; C., and 60&#xb0; C.&#x2264;T(20 Hz)&#x2264;80&#xb0; C.

Provided is a toner having: a toner particle including a binder resin and a wax A, wherein the binder resin includes at least 50% by mass of a styrene acrylic copolymer in the binder resin, the melting point of the wax A is from 60.0&#xb0; C. to 100.0&#xb0; C., the wax A is compatible at 100&#xb0; C. in an amount of at least 15.0 parts by mass with 100 parts by mass of a styrene-butyl acrylate copolymer, in DSC of the toner, where a peak temperature of a maximum exothermic peak derived from the wax A when cooling from 150&#xb0; C. to 0&#xb0; C. is performed at 1.0&#xb0; C./min is denoted by Tc(1), and a peak temperature of a maximum exothermic peak derived from the wax A when cooling from 150&#xb0; C. to 0&#xb0; C. is performed at 20.0&#xb0; C./min is denoted by Tc(20), 0.0&#xb0; C.&#x2264;Tc(1)-Tc(20)&#x2264;7.0&#xb0; C. is satisfied.

A toner comprising: a toner particle that contains a binder resin and a wax, wherein the binder resin contains a styrene-acrylic copolymer, the content of the styrene-acrylic copolymer in the binder resin is at least 50 mass %, the wax contains a wax A, at least 15.0 mass parts of the wax A compatibilizes at 100&#xb0; C. with 100 mass parts of a specific styrene&#x2014;butyl acrylate copolymer, and in a cross section of the toner particle observed using a scanning transmission electron microscope, domains of the wax are present, the average number of the domains is from 20 to 2,000, and using r1 for the average major diameter of the domains and r2 for the average minor diameter of the domains, r1 is from 0.03 &#x3bc;m to 1.00 &#x3bc;m, and the ratio of r1 to r2 is from 1.0 to 3.0.

Provided is a toner having a toner particle containing a binder resin and a wax, wherein the wax concentrations near the outermost surface of the toner and in the surface layer region below the outermost surface are controlled, so that the wax moves with high efficiency to near the outermost surface during heating.

A toner comprising a toner particle that contains a binder resin and a wax, wherein in a cross sectional image of the toner observed with a transmission electron microscope, the toner satisfies the following formulas (1) and (2)18.0%&#x2265;&#x2265;1.5%&#x2003;&#x2003;(1)10.0&#x2265;&#x2265;2.0&#x2003;&#x2003;(2)where As represents the proportion for the area taken up by the wax present in the surface layer region having distance 1.0 &#x3bc;m in a radial direction inward from the surface of the toner, and Ac represents the proportion for the area taken up by the wax present in the inner region positioned further inside than the surface layer region.

Toner and method of producing toner

Provided is a toner including a toner particle containing a graft polymer, in which: the graft polymer has a crystalline polyester segment and an amorphous vinyl polymer segment; the crystalline polyester segment has a unit derived from a specific monomer (a) and a unit derived from a specific monomer (b); a content X (mol %) of the unit derived from the monomer (b) calculated from a specific formula is 1.0 mol % or more and 24 mol % or less; and a melting point of the graft polymer is 50&#xb0; C. or more and 85&#xb0; C. or less.

Toner and production method thereof

A toner contains a styrene acrylic resin, a block polymer, and an organosilicon polymer, in which the organosilicon polymer has a specific partial structure, the block polymer has a polyester segment and a vinyl polymer segment, the melting point is 55&#xb0; C. or more and 90&#xb0; C. or less, the mass ratio of the polyester segment to the vinyl polymer segment is 40/60 to 80/20, and the polyester segment has a specific unit.

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Susono, Japan

Reo Tagawa