Developers TRIZ Cases

Opposite roller motion and a controlled toner flow path improve residual toner recovery and prevent halftone density unevenness.

Electrostatic toner deposition on a fixed-pattern cylinder improves metallic pigment registration, cuts drying time, and preserves bright specular reflection.

A silica, strontium titanate, and acrylic resin additive mix stabilizes positive toner charging while preserving fluidity and preventing clogging.

Dual-size resin spacer particles and cleaning auxiliaries keep positive toner additives attached, reducing fogging, agglomeration, and cleaning slip-through.

Usage-history-based fixing temperature control improves fixing consistency for overlapping toner images from multiple developing members.

A dual charge-control resin toner suppresses release agent bleeding and stabilizes charge under heat, humidity, and continuous printing.

Aqueous-phase oxidation lowers residual aryl amines and N-arylacetoacetamides in toner particles without destabilizing pigment dispersion.

Controlled sulfur in a core-shell toner helps retain moisture, stabilize charge distribution, and reduce image density unevenness in hot, humid conditions.

High-impedance polycarbonate polyurethane on the developing roller limits charge leakage while keeping irregular toner charging stable in cleaner-less printing.

A dual-layer polyurethane cleaning blade stabilizes photoreceptor contact to reduce density unevenness, filming, and cleaning instability.

A tuned work-function balance between white pigment and inorganic fine particles stabilizes toner charging and reduces fogging across environments.

A mixed amorphous-crystalline polyester binder improves toner dispersibility, low-temperature fixing, image strength, and gloss.

A silica, strontium titanate, and acrylic resin additive mix stabilizes positive toner charging under mechanical stress while preserving fluidity.

Silica fine particles coated with aluminum hydroxide help polyester toner keep charge stability and image density uniformity in hot, humid use.

A black underlayer beneath brilliant toner preserves metallic luster while maintaining color quality in electrophotographic printing.

A styrene-acrylic/polyester toner with ester wax and controlled nonionic surfactant balances low-temperature fixing, heat storage stability, and gloss.

Organosilicon polymer toner additives suppress surface embedding and form a stable blocking layer for durable charging and blade cleaning.

A controlled alcohol-to-surfactant ratio helps polyester toner maintain charge rise, image density, and low-temperature fixability in humid conditions.

Biased inorganic oxide distribution in toner improves transfer and cleaner-less cleaning while reducing paper dust adhesion at high speed.

A polyarylate monolayer photoreceptor and composite toner shell maintain positive chargeability and transfer efficiency after endurance.

Fatty-acid-coated calcium carbonate and a controlled polyester resin keep colorant dispersed during high-temperature fixing for glossy prints.

Controlled contact resistance between the developing roller and contact member stabilizes toner charge and reduces banding in image formation.

Selective antibacterial toner is deposited only on finger-contact areas of printed material to cut agent use, cost, and infection risk.

A recessed toner core with thicker resin coating in surface valleys improves fixability while preserving heat-resistant storage stability.

Opposed roller motion and a 1.1-2.5 speed ratio stabilize toner supply and charging, reducing density variation and fogging in harsh printing conditions.

Controlled ester-wax domain size and distribution keep toner motion uniform in hot, humid conditions, reducing fogging and color streaks.

High-work-function strontium titanate in toner preserves charge and transfer stability across environments, reducing voids and adhesion.

A dual-particle shell layer gives electrostatic toner stable positive charging, better transfer, and less drum adhesion across environments.

Dual-size silicone-modified resin particles replace silica spacers to stabilize positive toner charging and improve drum cleaning.

A polyimide silicone and fluorine resin coat helps magnetic carriers retain toner charge and durability in hot, humid developers.

Acrylic shell layers and silicone-modified particles limit additive detachment while balancing low-temperature fixing and heat-resistant toner storage.

Hydrophobized metal oxide particles in polyester toner improve low-temperature fixing while suppressing hot offset, fogging, and density variation.

Si-protrusion strontium titanate particles and surface aluminum stabilize toner charging and limit particle migration in dry, high-speed printing.

Surface-tuned strontium titanate repels silica and limits hydrotalcite aggregation, keeping toner charge stable across humidity extremes.

Different inorganic particle levels on two carrier coatings drive selective migration and polishing to suppress filming on downstream image holders.

Microscopic grooves on the photosensitive drum retain metal soap, limiting discharge-product buildup and image smearing without sacrificing wear resistance.

Two carrier types with controlled inorganic particle distribution improve migration and polishing to suppress filming on image holding members.

A core-shell toner structure isolates fluorescent agents from quenching components while preserving white color and high UV lightness.

High-circularity silica with controlled nitrogen content keeps toner flow stable by preventing additive burial and uneven distribution.

Controls alkyl carbon-number matching and magnetic-body dispersion to improve low-temperature fixability and scratch resistance.

Fluorinated hydrotalcite with strontium titanate stabilizes toner charging, reducing replenishment fog and poor solid followability.

Controlled toner viscoelasticity improves fixing and reduces image density unevenness between low and high coverage areas on rough media.

By separating pigment reflectance from the fluorescent peak, this resin particle maintains strong fluorescence and accurate color reproduction.

A carrier coating with depth-controlled inorganic particle exposure and tuned toner viscoelasticity keeps image density stable under stress.

Matched silica and titanic acid particle size, circularity, and coverage keep toner charging stable and prevent fog in low humidity.

Specific external additives and a conductive protective layer speed toner charge rise and keep halftone density uniform over long use.