G03G2215/0402

DEVELOPING ROLLER, DEVELOPING CARTRIDGE, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

A developing roller having a conductive substrate and a resin layer present on the outer surface side of the substrate, wherein the developing roller is for a positive-charging toner, the resin layer contains a crosslinked urethane resin, an amino group is present at an outermost surface of the resin layer, where an ion intensity derived from the amino groups relative to all detected ions in the resin layer is 1.0% or more, a ratio of the total of detected values of Si, F, and Cl at the outermost surface of the resin layer is less than 5.0 Atomic %, and the elastic modulus and volume resistivity of the resin layer satisfy a specific relationship.

Image forming apparatus includes metal and resin components with enhanced stability and functionality

An image forming apparatus includes a first side plate, a second side plate, a first connecting member, the first connecting member being secured to the first side plate at a first securing portion and being secured to the second side plate at a second securing portion, and a frame, the frame being sandwiched between the first side plate and the second side plate and being secured to the first side plate and the second side plate. At least one of the first side plate and the first connecting member is deformed to form the first securing portion, and at least one of the second side plate and the first connecting member is deformed to form the second securing portion.

IMAGE FORMING APPARATUS
20260126753 · 2026-05-07 ·

An image forming apparatus includes a first side plate, a second side plate, a first connecting member, the first connecting member being secured to the first side plate at a first securing portion and being secured to the second side plate at a second securing portion, and a frame, the frame being sandwiched between the first side plate and the second side plate and being secured to the first side plate and the second side plate. At least one of the first side plate and the first connecting member is deformed to form the first securing portion, and at least one of the second side plate and the first connecting member is deformed to form the second securing portion.