摘要:
The present invention relates to a toner comprising a specific binder resin, a specific polyethylene wax and a specific polypropylene wax. The present invention further relates to a toner which comprises a binder resin including a specific first resin and a specific second resin.
摘要:
The present invention relates to a toner comprising a specific binder resin, a specific polyethylene wax and a specific polypropylene wax. The present invention further relates to a toner which comprises a binder resin including a specific first resin and a specific second resin.
摘要:
The present invention relates to a negatively chargeable toner comprising at least a binder resin, carbon black, and charge controller, wherein said charge controller is a colorless or white in color boron compound, and wherein a melt viscosity curve of said negatively chargeable toner has an inflection point of a viscosity slope, an inflection point temperature (T.sub.2) existing within a temperature range of T.sub.1 +20.degree. C. to T.sub.1 +40.degree. C. relative to a flow start temperature (T.sub.1), a first absolute value (.DELTA..eta..sub.1) existing within a range of 4.0.times.10.sup.-2 to 6.0.times.10.sup.-2, said first absolute value. (.DELTA..eta..sub.1) being a mean viscosity slope within a temperature range below the inflection point temperature (T.sub.2), a second absolute value (.DELTA..eta..sub.2) existing less than 2.0.times.10.sup.-2, said second absolute value (.DELTA..eta..sub.2) being a mean viscosity slope within a temperature range higher than said inflection point temperature (T.sub.2) is less than 2.0.times.10.sup.-2, and a temperature difference between said inflection point temperature (T.sub.2) and a flow stop temperature (T.sub.3) being 5.degree. C. or more.
摘要翻译:本发明涉及至少包含粘合剂树脂,炭黑和充电控制器的带负电荷的调色剂,其中所述充电控制器是无色或白色的硼化合物,并且其中所述带负电荷的调色剂的熔体粘度曲线具有 粘度斜率的拐点,相对于流动开始温度(T1)存在于T1 + 20℃至T1 + 40℃的温度范围内的拐点温度(T2),第一绝对值(DELTA eta 1)存在于4.0×10 -2至6.0×10 -2的范围内,即所述第一绝对值。 (DELTA eta 1)是低于拐点温度(T2)的温度范围内的平均粘度斜率,小于2.0×10 -2的第二绝对值(DELTA eta 2),所述第二绝对值(DELTA eta 2)为 在高于所述拐点温度(T2)的温度范围内的平均粘度斜率小于2.0×10 -2,所述拐点温度(T2)和流动停止温度(T3)之间的温度差为5℃。 或者更多。
摘要:
The negatively chargeable toner of the present invention includes a boron compound expressed by the chemical structural formula (A): ##STR1## wherein R.sub.1 and R.sub.3 respectively represent substituted or non-substituted aryl group, R.sub.2 and R.sub.4 respectively represent hydrogen atom, alkyl group, substituted or non-substituted aryl group, X represents a cation, and n is an integer of either 1 or 2; to improve charge rise characteristics and charging stability.
摘要:
The present invention relates to a toner for developing a digital-image, comprising particles having rounded surfaces and having the following size distribution:log �Y!=-0.16 X+k (2.4.ltoreq.k.ltoreq.2.7)5.0.ltoreq.X.ltoreq.11.7 �.mu.m!wherein �X! represents an average particle size by volume size and �Y! represents % by number of particles of not more than 5 .mu.m.
摘要:
A toner for developing a digital-image and being fused onto a recording medium by heat and pressure, said toner comprising: a coloring agent; a first polyester resin having a softening temperature of 105.degree. C..about.112.degree. C.; a second polyester resin having a softening temperature of 150.degree. C..about.155.degree. C. wherein a mix ratio of the first resin to the second resin is between from 75/25 to 40/60 and an oxided polyolefine. Said toner has a characteristics of a high reproductivity of a digital dot image, a high fixing-strength, a wide range of an offset boundary temperature and an anti-filming property.
摘要:
A toner is provided for developing an electrostatic image which has relatively high roundness, uniform shape, excellent property of electrification, electrification stability, maintenance of heat resistance, fixability, image quality and productivity, and is effective for full-color image formation, cleanerless system and toner-recycling system. The toner comprises toner particles containing a binder resin (A), a polymer (B) and a colorant, the polymer (B) having weight-average molecular weight of 1000-3000 and a ratio of weight-average molecular weight/number-average molecular weight of not more than 2.0, wherein the polymer (B) particles exist on surfaces of the toner particles.
摘要:
This invention relates to a single component toner comprising specified polyester resins as binder resin and used in single-component developing system in which toner particles are electrically charged when passing through the opening between a toner-levelling member and a toner-transporting member positioned against a photosensitive member.
摘要:
A rail cooling method includes: calculating, based on a relation between temperatures and an amount of warp of the rail cooled to ambient temperature after the forced cooling, the temperatures including a cooling start temperature of the head, a cooling end temperature of the head, a cooling start temperature of the foot and a cooling end temperature of the foot, a target value or a target value range for each of the temperatures so that the amount of warp of the rail at ambient temperature falls within a permissive range; and setting a cooling condition in accordance with the target value or the target value range to perform the forced cooling on the head and the foot.
摘要:
N-band image data are output from an N-band image capture device, being capable of N>4 multiband image capturing, to an image data processing device. An image data evaluation information provision unit provides a determination unit with evaluation information on the basis of the input N-band image data. On the basis of the evaluation information, the determination unit determines whether to set the N-band image data or M-band image data having a smaller band number than the N-band image data as image data to be output. On the basis of a determination result of the determination unit, an output image data selection unit selects either the N-band image data or the M-band image data as the image data to be output to an image data recording unit.