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.

An adhesive-coated mesh substrate confines bonding material between functional plates, preventing squeeze-out and ensuring UV ink compatibility.

A printer system determines remaining ink by measuring spittoon weight changes during maintenance events.

A lid member with specific surface orientations protects the carriage from ink contamination while maintaining nozzle access.

A recording apparatus ink cartridge positions detection portions to prevent ink adhesion and ensure stable installation.

A nozzle testing device uses a light source unit to form a regular reflection area in captured images of ink patterns.

Segmented ink delivery lines maintain consistent backpressure across multiple printheads, eliminating cumulative pressure drops from varying ink demands.

Hardened pad electrodes prevent physical damage during probing, ensuring reliable electrical connections at narrow pitches.

A white ink delivery system circulates dense pigment fluid between print jobs to maintain suspension.

Periodic agitator operation maintains ink homogeneity in storage tanks, preventing sedimentation of solid components like titanium oxide.

Differentiated flushing based on vertical nozzle position balances pigment concentration and reduces ink waste.

A ridge portion on the flexible ink storage portion prevents flow path blockage caused by bag contraction as ink is consumed.

Segmented printed circuits with drive ICs prevent shorts and noise interference in actuators.

A segmented ink tank partition wall reduces bottom surface area to minimize residual ink retention.

Passive connection device uses pressure differential to refill main cartridge, eliminating pump complexity and printing suspension.

A liquid ejecting head valve control method stabilizes flow using a pump to generate preliminary liquid movement.

A printhead wiper cleaning mechanism uses a scraper to remove ink from the wiper surface.

Pre-bending the head substrate offsets convex curing warpage with concave heating expansion, ensuring straight line printing.

Periodic pulse control of an on-off valve separates high-pressure and low-pressure sides, enabling precise pattern formation without additional heat treatment.

Air release mechanism with hollow cylindrical member and filter structure removes foreign substances from outside air entering the liquid container.

A non-drive member limits actuator plate displacement toward the opposite side, enabling higher pressure generation while reducing power consumption.

Through holes connect upper and lower wiring layers in a liquid ejection head, reducing flow resistance and stabilizing bubble generation.

Elastic member directs leaked fluid into guiding channel, preventing soiling and user contamination during cartridge exchange.

Dynamic timing selection resolves throughput loss from premature carriage stops by ensuring non-ejecting flashing finishes reliably.

Tapered second vibration portion increases thickness toward the first vibration portion to manage stress concentration at piezoelectric element end portions.

A transistor and lowpass filter configuration suppresses voltage noise in liquid ejecting apparatuses.

A liquid discharge head bonding structure uses segmented recesses to guide ultraviolet light for adhesive curing.

Alternating electrode pin polarity and adjusting resistance thresholds compensates for metal oxidation, preventing inaccurate liquid level readings.

A processing unit simulates print operations to select the highest productivity mode that meets quality requirements.

Segmented bulk ink bag reduces replacement frequency and e-waste while preventing leakage across orientations.

Recessed portions in the first wall of an ink cartridge case indicate stored ink color, resolving identification difficulties without adding external labels.

A single resistor window across the wafer simplifies thermal ink printhead fabrication by reducing surface topography.

A liquid ejection head nozzle plate features a smoothly recessed circumferential portion around each nozzle to stabilize droplet ejection.

An ink jet printer detects defective nozzles by monitoring light absorption from droplets discharged during printing.

Sloped partition walls position openings near the center to reduce flow resistance, preventing air bubble infiltration during shock.

A print head determines ejection state by combining residual vibration signals from multiple piezoelectric elements into a digital composite wave.

Analyzing residual pressure waves from a specialized detection pulse identifies air bubbles and obstructions without expelling droplets.

A wiping module uses a guide portion to drive a cleaning member along the wiping path for consistent nozzle surface contact.