Electrography/Magnetography TRIZ Cases

A curved lower portion in the second guide groove allows the process cartridge boss to move smoothly to its stop position.

Partial cover opening via urging force resolves jam access ambiguity by visually signaling unlock status.

Contour detection and distance sensing on a portable terminal determine page sequences, preventing incorrect document printing when transmission order is lost.

Composite structural particles coated with oxygen-deficient conductive tin oxide form the outermost surface layer of an electrophotographic photoreceptor.

A U-shaped member hooks a locking portion on a support member to secure the cover mounting.

Optimized single-layer photosensitive member balances pigment concentration and film thickness to resolve toner image transferring performance issues.

A printing apparatus uses a movable opening closing portion to create a front take out port for extracted print media.

A photoconductor drum overcoat layer incorporates nano metal oxide particles within a urethane acrylate resin matrix to form a protective surface.

A polycarbonate copolymer limits trihydroxy biphenyl content to reduce yellowish index values.

A drum unit attachment mechanism uses a turning member and biasing element to secure the photosensitive drum.

Silane-modified polyester polyol balances hardness and flexibility to suppress wear, chipping, and curling while preventing contamination.

A cleaning blade uses a guide groove to constrain pressurizing member movement perpendicular to compression.

Applying opposite bias voltage to a fur brush electrostatically attracts toner, suppressing fusion on hardened surfaces.

Iterative optimization of copy detection patterns enhances original print discrimination through simulated printing and scanning processes.

Positioning developing and drum cartridge electrical contacts opposite the lock lever prevents user hand contamination while maintaining ease of operation.

Controlling outermost layer film density and gradient via solvent boiling point to prevent image defects from ozone contamination.

Angled air entry ports with orthogonal chamfers seal developer unit cooling ducts, preventing toner leaks from heat buildup during high-speed printing.

Dispersing hexagonal boron nitride in the surface layer reduces friction coefficients, preventing abnormal sounds and toner slipping during cleaning.

A highly branched polymer with long-chain alkyl groups segregates to the charge transport layer surface of an electrophotographic photoconductor.

Axial toner variation on a coating roller ensures uniform lubricant layers, reducing abrasion in non-image areas.

An undercoat layer with a specific compound enhances electron transfer in electrophotographic photosensitive members.