Electrographic Process Apparatus TRIZ Cases

See how a restriction member blocks locking claw movement at stand-by position to prevent accid

See how a conditional restriction member prevents accidental unlocking in pull-in mechanisms by

See how segmented locking claws and a protective rib on the positioning shaft prevent unintenti

See how a two-step locking mechanism prevents accidental cartridge tray release in pull-in syst

See how a groove-and-protrusion retracting device uses gravity and movable-unit weight to autom

See how a vertically movable locking pin holder prevents collision damage when the sheet feed c

See how a polymeric coating with matting agent improves dry toner adhesion and mechanical abras

See how movable rails with biasing force improve cartridge positioning accuracy while reducing

See how positioning bosses and L-shaped hook portions secure the cassette base to inner rails w

High-molecular-weight polyethylene particles and a shaped surface layer keep charging stable over long use while reducing toner adhesion.

A split guide and spring layout keeps urging force stable as the reading casing opens and closes, reducing support-part deformation.

An inclined counter surface and rail geometry keep the rotating member supported during pull-out, making sheet refilling smoother and safer.

A rotating locking member unlocks before extraction and drives a pushing wall to lower drawer removal force in image forming equipment.

A three-point upper unit and tilting connector isolate extension-unit distortion, preserving image quality on uneven floors.

Serial biasing and rotational members pull a heavy sheet tray smoothly into the main unit, reducing insertion force, misalignment, and sheet damage.

A guide rail and lever hold a heavy scanner cover open and prevent abrupt closing during maintenance without added springs.

Adjustable current detection settling time cuts motor rotation unevenness while allowing higher PWM duty in image forming equipment.

A retained digital signal lets the control portion decide restart power supply after an outage without reading stored state data.

Staggered load restart after long power loss suppresses inrush current and protects power supply elements during power resumption.

A resonant inductor-capacitor booster generates sine wave AC high voltage for toner amount detection with lower cost, size, and power use.

Turning the switch on before low-to-high voltage transition prevents repetitive on/off cycling and suppresses inrush current in image forming power supplies.

Elastic terminal arms press against through-hole contacts to replace soldering, improving assembly speed, connection stability, and yield.

Polarity-controlled FET rectification replaces diode bridges to cut switching power source losses, heat sink demand, and board area.

AC current inflow is reduced before DC current sensing, cutting ripple-induced errors and CPU load in electrophotographic charging control.

Rotation-driven airflow through cover openings cools an outer rotor motor without fans or fins, preserving compact size and torque.

An AC current reduction circuit and reverse waveform cancellation suppress ripple voltage, improving DC current and surface potential detection.

Tooth-shaped comb fingers with prongs improve discrete-position alignment stability in linear comb drives without larger combs or complex circuitry.

A toner layer is printed first, then graphite or graphene powder is heat-pressed onto it to form low-cost conductive traces with less waste.

PWM duty control speeds exciting current decay while limiting supply voltage rise, improving sensorless rotor stop position detection.

A shaft-mounted rotation stopper keeps the movable sheet guide from twisting with the rotary blade shaft, improving smooth travel and reliability.

A staged slider and gear assembly keeps the bearing holder from falling off, improving alignment and reliability in belt conveyance systems.

A concave gear cover and nested shaft layout shrink rotational-axis size while avoiding interference with exterior covers.

A time-varying reference voltage lets the breaker cut heater power quickly during rapid fixing-member temperature rise, preventing overheating.

A disengaged-to-engaged slider and meshing driving gear keep the bearing holder from falling off, simplifying belt conveyance assembly.

A folded two-arm cover linkage with torsion springs replaces rail dampers, saving space while supporting stable cover rotation and wiring.

Chamfered hole and pin boundaries keep lubricant away from stress points, suppressing creep-related chemical cracking in gear supports.

Stored EDLC power lets the printer finish capping and maintenance after USB unplugging, preserving ink ejection and shortening next startup.

A rotating support changes the solid lubricant angle as it wears, cutting remnant waste and extending coating device life.

A thermal diffusion estimate and sensor feedback let image-forming heaters avoid overshoot and temperature ripple without costly fast sensors.

An offset rotating detected body increases optical sensor displacement, improving cartridge information detection in compact cartridges.

A rotatable two-part cable cover guides the scanner connection member through cover opening and closing to prevent contact damage and wear.

An internally fitted stop ring locks into support holes to prevent fixing roller detachment and avoid outer-surface damage during rotation.