Printing TRIZ Cases

A pseudo residual vibration signal helps the piezoelectric discharge head detect discharge abnormalities without lengthening each inspection period.

A filter circuit generates a pseudo residual vibration signal, shortening discharge-state inspection while preserving detection accuracy.

A switching power supply separates its frequency from the piezoelectric actuator’s natural vibration to restrain ripple noise and stabilize ink ejection.

Flexible membranes and a pressure-transmitting chamber stabilize valve opening and liquid flow in ejection devices.

Flexible membranes move a shaft to open the communication port, reducing O-ring friction and stabilizing valve pressure.

Dual outflow holes create rotating ink flow around the communication hole, reducing solid-matter accumulation while purging residual ink and air.

Different Young's moduli across stacked piezoelectric films increase displacement while reducing stress and film-forming damage.

Multiple print heads share one temperature signal path while integrated circuits preserve identification of the affected head.

Segmented outflow paths and a switching valve purge air and solid matter away from recording heads during suction cleaning.

By imitating residual-vibration attenuation, the inspection circuit checks piezoelectric discharge states faster without waiting for full decay.

Thin-wall regions reduce vibrating-plate size while preserving adhesive sealing between the plate and flow-channel member.

Temperature-driven bubble generation is managed through circulation degassing and adaptive treatment to protect nozzle ejection.

Variable-potential switching supplies piezoelectric ejection current while reducing power consumption in the capacitive drive circuit.

A segmented vibrating plate uses thinner peripheral walls to reduce adhesive demand while its central region maintains sealing capability.

Common power and ground electrodes near the heaters reduce wiring resistance and voltage drop, improving liquid discharge consistency.

A recessed discharge surface and extended side surfaces guide cleaning liquid away from head contacts during nozzle cleaning.

A movable cleaning-liquid supply feeds a wiping blade for inkjet nozzle maintenance, reducing sheet contamination and supply-member damage.

Membrane deflection under pressure differences checks printhead damper cavities for leaks while preserving compliance for pressure absorption.

Banding and inconsistent color are addressed through continuous printhead measurement and feedback correction without interrupting the printing process.

Protrusions between capacitance electrodes interrupt continuous adhesion, helping detect remaining liquid accurately in the storage section.

Continuous-current monitoring cuts heater power at a preset duration, limiting abnormal temperature rise in the recording head.

Nonaligned outflow holes create rotating flow in the pressure chamber, removing air and solid matter for consistent ink ejection.

Segmented piezoelectric elements and separately routed electrodes make brittle actuator structures easier to mount and connect in liquid ejection heads.

A recessed discharge surface guides used cleaning liquid downward, limiting lateral spread and ink adhesion on recording head contact surfaces.

Buoyancy-driven bubble retention can restrict reservoir supply; this liquid ejection head aligns flow to maintain continuity.

A switchable ejection unit sends cleaning liquid directly to the printer cap or cleaning roller, avoiding ink-contaminated intermediate supply.

Segmented drive devices serve defined nozzle groups to shorten wiring paths, reduce board area and impedance, and limit noise.

An existing drop detector measures in-flight printing droplets against stored nozzle locations to verify printhead placement without added hardware.

Tilting the horizontal reservoir guides air bubbles into a vertical reservoir without extra pipes, helping limit agglomeration in water-based ink.

Frequent nozzle-status transmission can delay recording, so the control program varies acquisition timing to reduce overlap with printer operation.

Multi-timing droplet images reveal ejection angles, speeds, and non-ejection issues without separate ink-consuming measurements.

Circulation can shift ink levels through temperature and density effects; this case uses calculated correction delivery to improve tank measurement accuracy.

A humidity-sensitive interlayer and separated electrodes add capacitive sensing near piezoelectric actuators to support stable liquid ejection.

A gradation-driven nozzle pattern keeps a constant non-discharge ratio to limit airflow interference, reduce droplet deflection, and improve image uniformity.

Residual ink can solidify on the ejection surface; heated immersion cleaning predicts its state from elapsed time and ambient temperature.

A separation pin peels the cartridge lid from its liquid storage member through a gap, reducing chips, clogging, and component damage.

Selectable drive signals help a print element board suppress peak current and voltage drops without the full printing-time penalty of time division.

A shared inductor, switch, diode, and capacitor network generates multiple voltage levels from one supply, reducing ejection head-unit size.

An overlapping communicating channel cools the actuator trunk area, suppressing local heat and stabilizing liquid viscosity for image quality.

Users compare basic-color and special-color previews before printing, making image-quality changes easier to recognize and select.

A matched channel shape reduces pressure loss and surface-tension effects, speeding ink flow from the replenishing bottle.

A heating element plasticizes the adhesive bonding a liquid ejecting head, enabling component disassembly and repair when parts fail.

Multiple same-color ink heads are arranged in carriage columns to expand printing width while improving color density across wide media.

A carriage-mounted tank layout aligns ink heads and tanks, reducing pipe-line length variation and pressure fluctuations for stable wide-media printing.

An adjustable cleaning-liquid level contacts the ink ejection surface while an overflow outlet prevents leakage and ejection failures.

Wiring is absent from the flexible circuit board’s bend region, reducing breakage risk as the liquid ejection head is made smaller.

Waveform shaping plus maximum- and minimum-value hold circuits process piezoelectric residual vibrations for faster, more accurate ejection-state detection.

Recessed flange contact surfaces and a liquid gasket help prevent contaminants from creating gaps that cause liquid leakage.

A support-member through hole vents the enclosed adhesive space, limiting thermal-expansion breakage and supporting electrical reliability.

A welder projection presses the film and spout to form a pit, limiting wrinkles and air intrusion at the liquid container seal.