Printing TRIZ Cases

Candidate drive pulses are filtered by exclusion conditions so liquid ejection heads can meet ejection needs and user-defined constraints.

A flexible recessed chamber above the liquid path absorbs vibration and redirects air bubbles away from discharge ports for stable recording.

Shared control lines let multiple DACs output piezo drive signals at different timings, cutting printhead wiring, board area, and cost.

Non-image-region ink discharge confirms nozzle state and limits drying during printing, improving print stability without separate flushing passes.

Piezo-driven vibration circulates cleaning liquid through capped inkjet nozzles to dissolve pigment caking faster and cut printer downtime.

Separated wiping portions absorb ink and reaction liquid independently, preventing agglutination at discharge ports and stabilizing printhead maintenance.

A thicker outer ink tank wall cuts moisture evaporation without enlarging the printer, helping maintain ink viscosity and recording quality.

Automatic ink selection and discharge refills printers without removing containers, reducing damage risk, waste, and premature expiration.

Switchable LC demodulation helps a piezo drive circuit generate higher-frequency signals for more efficient liquid ejection.

Shifting temperature detection elements toward substrate ends captures edge gradients more accurately and improves droplet landing accuracy.

A shaped tag plate and actuator verify color container compatibility during insertion, blocking incompatible packs and protecting print quality.

Variable inductance demodulation boosts high-frequency piezo drive signals while balancing voltage precision and response speed.

A raised ink-storage space in the absorber limits splashing at the atmosphere opening port while preserving stable ink retention and supply.

Alternating inked and non-inked regions lets pigment printing keep glossy fabric shine while still delivering visible color.

Elapsed-time control after pump shutdown times printhead wiping to suppress ink mist color mixture without sacrificing throughput.

Automated nozzle cleaning circulates solvent through the print head and recovers used liquid, reducing manual cleaning and solvent handling.

Direct ultrasonic coupling through cleaning liquid reduces wave reflection, improving cavitation and uniform nozzle cleaning.

A sensing wire at the joined substrate interface detects ink penetration early, protecting ejection elements and wiring from defective ejection.

Elastic sealing members and protrusion-recess fitting replace screws in a liquid ejection head tank joint to improve sealing and speed assembly.

One-sided pressure in dual spaces creates stable airflow layers that keep ink mist off the collection nozzle and printing medium.

A narrowed diaphragm aperture raises local flow resistance to suppress meniscus overshoot and adhesive intrusion in high-viscosity inkjet heads.

A rotatable filter chamber reorients inlet and outlet flow paths to purge air bubbles during maintenance, reducing ink waste and supply disruption.

A planar impregnated pad applies cleaning liquid only to the nozzle area, removing deposits while reducing tank contamination and liquid replacement.

Multi-pulse piezo drive timing suppresses residual chamber vibration, reducing droplet deflection and mist at high discharge frequency.

Redistributing ink volume between original and nearby generated dots reduces substrate priming dependence while preserving print resolution and texture control.

Multiple key portions on different surfaces enable two-step attachment that identifies ink type and reduces key damage from concentrated loads.

A planar impregnated cleaning member spreads liquid evenly across inkjet nozzle ports to prevent clogging while reducing tank contamination and liquid waste.

A shaped tag plate and switch interlock verify toner container compatibility before mounting, preventing incorrect attachment and image quality issues.

Separate wiper sections and cleaning tanks keep different discharge liquids from mixing, preserving nozzle cleaning effectiveness.

A differentiated cleaning block applies weaker suction at the nozzle face and stronger suction at side faces to remove ink without nozzle ejection failure.

Shared heat radiation and lateral flexible wiring let adjacent discharge heads sit closer while maintaining drive-circuit heat dissipation.

Separate waste and cleaning liquid channels use suction pressure to keep the printer cap clear, preventing clogging and preserving nozzle performance.

A dirtiness index lowers recording material use on swelling or jam-prone media to suppress smudging, clogging, and image defects.

A segmented air passage with a labyrinth path stabilizes cartridge pressure during attachment while reducing ink leakage and insertion load.

A vent tube and air-tight member stabilize negative pressure in the ink stack, reducing nozzle damage while maintaining ink removal.

A recessed support substrate and partial bonding contact improve adhesion, suppress delamination, and damp pressure-driven crosstalk in liquid ejection heads.

A restricting portion blocks the bag's welded section from hitting the sealing member, preserving cartridge volume efficiency and full ink use.

Targeted preliminary ejection on a wider sheet keeps nozzles ready after narrow-media printing, reducing width-switch ejection defects.

Pressure-based bubble detection in a negative-pressure liquid tank improves ink circulation stability and prevents inaccurate liquid level sensing.

Segmented liquid receiving sections and a depth-spanning tray prevent uneven waste ink absorption, drying, and flushing failure.

Nozzle diameter is matched to channel natural frequency to keep droplet volume stable at high-speed recording and reduce clogging.

Segmented peripheral and internal joints cut bond-face contamination, reducing crosstalk and head deterioration in liquid discharge heads.

Monitored interchangeability lets a print apparatus choose the less used consumable, reducing waste, replacements, and downtime.

Multiple communicating parts let ink return during pressure testing, preventing false empty prompts, printer errors, and overflow.

A movable wall and displacement limiter stabilize ink supply pressure during replenishment and discharge, reducing print instability.

A Coanda-effect air knife lifts ink aerosol into a wide suction nozzle, reducing media strikes, blockages, and print defects.

A pressure-adjusting intermediate ink tank limits wall displacement to keep supply pressure stable and maintain consistent ink discharge.

Cleaning liquid supply is matched to actual ink suction, preventing waste-path ink solidification without overusing rinse liquid.

A carriage-coupled cover protects the cap, prevents liquid adhesion, and keeps nozzles moist without a dedicated cover motor.

A dedicated contact path shifts cap load from the carriage to guide rails, preventing nozzle misalignment during inkjet head capping.

Merging pump mechanisms into one unit with selective switching valves reduces device complexity and size while maintaining independent ink supply.

Segmented pathways with controlled flow resistance prevent pressure loss and ensure efficient air bubble discharge during high-speed ink ejection.

Extending the wiring member along the reference direction provides sufficient contact area for the wiring substrate without widening the gap between inlets.

Integrated service station cleans PWA print head nozzles in situ, preventing clogging while maintaining alignment precision.

Flexible partition wall in cap device manages pressure fluctuations and foreign matter adhesion to sustain consistent nozzle moisture levels.

Actuator activation waveforms manipulate droplet velocity to enhance coalescence of large-volume ink particles.

Segmented cleaning with different liquids resolves adhesion issues while preventing nozzle drying.

A fluid printhead heater detects bubble formation through electrical resistance changes in the drive element circuit.

A thermal printer unit groups heating elements to manage power consumption within permanent voltage circuit limits.

An ink cartridge chip uses sequential light emission to differentiate multiple cartridges within an imaging device.

Dynamic pressure control manages unit-time supply amounts to discharge air bubbles and foreign matters while preventing unnecessary ink consumption.

A replacement electrical storage device returns inaccurate data to spoof imaging devices, resolving the contradiction between adaptability and reliability.