Abstract: A base material for a seatback side includes a body portion including a protruding portion. The protruding portion has a plate piece surface of a distal end extending from the body portion outwardly relative to an outer portion provided on an outer side in a vehicle width direction. The plate piece surface is placed side by side with a flange surface of a flange portion projecting in a peripheral portion of the body. The distal end is sandwiched by a weather strip together with the flange portion.

Abstract: A base material for a seatback side includes a body portion including a protruding portion. The protruding portion has a plate piece surface of a distal end extending from the body portion outwardly relative to an outer portion provided on an outer side in a vehicle width direction. The plate piece surface is placed side by side with a flange surface of a flange portion projecting in a peripheral portion of the body. The distal end is sandwiched by a weather strip together with the flange portion.

Abstract: In an image forming method including a charging step, an exposure step, a development step using a developing roll, a transfer step, a fixing step and a cleaning step of removing a toner remaining on the surface of a photosensitive member after the transfer step, the developing roll has a surface brightness of 30 to 220 and a surface roughness Rz of 1 to 20 ?m, the cleaning blade is a cleaning blade made of a polyurethane elastomer and having a peak value of at most 0.95, a peak temperature of ?15 to 10° C. and a width at half maximum of at least 25° C. in viscoelasticity tan ?, the toner has a volume average particle diameter of 4 to 10 ?m and an average circularity from 0.950 to 0.995, the charge level of the toner on the surface of the photosensitive member is 10 to 80 ?C/g in terms of an absolute value, and the pH of a water extract of the toner is 3 to 8.

Abstract: A yellow toner comprising colored resin particles containing a binder resin and a yellow colorant, wherein the yellow colorant is a compound represented by a structural formula (1): wherein R1, R2, R3 and R4 are, independently of one another, a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, or an alkenyl group having 2 to 12 carbon atoms, and the average circularity of the colored resin particles is 0.970 to 0.995.

Abstract: In an image forming method including a charging step, an exposure step, a development step using a developing roll, a transfer step, a fixing step and a cleaning step of removing a toner remaining on the surface of a photosensitive member after the transfer step, the developing roll has a surface brightness of 30 to 220 and a surface roughness Rz of 1 to 20 ?m, the cleaning blade is a cleaning blade made of a polyurethane elastomer and having a peak value of at most 0.95, a peak temperature of ?15 to 10° C. and a width at half maximum of at least 25° C. in viscoelasticity tan ?, the toner has a volume average particle diameter of 4 to 10 ?m and an average circularity from 0.950 to 0.995, the charge level of the toner on the surface of the photosensitive member is 10 to 80 ?C/g in terms of an absolute value, and the pH of a water extract of the toner is 3 to 8.

Abstract: The invention provides a cleaning blade for removal of an untransferred toner remaining on the surface of an image bearing member. The cleaning blade includes fine particles attached to the surface of at least a portion of the cleaning blade to come into contact with the image bearing member in an amount of attachment of 1 to 10 mg/cm2. A nonionic surfactant is applied to the cleaning blade to attach fine particles to the surfactant-applied portion in an amount of 1 to 10 mg/cm2, followed by drying.

Abstract: The invention provides a cleaning blade for removal of an untransferred toner remaining on the surface of an image bearing member. The cleaning blade comprises fine particles attached to the surface of at least a portion of the cleaning blade to come into contact with the image bearing member in an amount of attachment of 1 to 10 mg/cm2. A nonionic surfactant is applied to the cleaning blade to attach fine particles to the surfactant-applied portion in an amount of 1 to 10 mg/cm2, followed by drying.