Other Printing Apparatus TRIZ Cases

An ink container plug uses an inclined leading end surface to direct adhering liquid away from the user during detachment.

Automated unlocking system reverses rotor direction to decouple and re-engage the blade, resolving persistent jams without manual intervention.

Correcting dotted pattern densities before screening processing resolves unevenness at boundaries between different patterns.

A printing apparatus uses a single slitter and ink receiving portion to enable borderless printing across various media sizes.

Groups liquid ejection nozzles by median ejection rates to assign specific drive signals, resolving uniformity variations across the array.

A wiping unit feeds a cleaning member based on measured ink discharge amounts to maintain clean discharge ports.

A printing apparatus controller adjusts roller speeds based on motor temperature to maintain accurate sheet conveyance.

A motor applies proportional torque to a spindle during manual rotation.

Protrusion and recess features on printer covers prevent roll paper jamming by blocking entry into the discharge gap.

Processor-controlled nozzle selection simulates physical staggering, enabling varied fluid deposition sequences without mechanical complexity.

Platen grooves isolate the print head from heater-induced cockles, maintaining printing quality during rapid drying.

A reverser returns recording medium upstream to a temperature regulator before ink ejection begins.

A print head deposits image quality improvement liquid to optimize surface finish.

A control device adjusts head poke amounts to position the trailing end of recording media outside roller nip ranges.

A print media cutter uses a one-way clutch to drive the active cutting wheel only during forward strokes.

Segmenting gas channels with independent relief valves allows a compact pump to maintain precise pressure during droplet ejection maintenance.

A controller calculates cumulative ink consumption to estimate remaining volume in low-cost printers without physical sensors.

A bimodal inkjet print head ejects variable droplet sizes via piezoelectric signals to expand grayscale dynamic range.

A paper-clearance apparatus uses a rotating roller to grip and extract jammed sheets from the printing path.

Heated air from a fan dries ink droplets on soluble film in 15 seconds, preventing smudges and blurs during high-speed printing.

Segmented gas suction ports remove ink mist from UV curing printers, preventing contamination of light irradiating units and printed media.

Segmented nozzle activation creates airflow gaps that reduce aerodynamic interactions and wind-related defects while maintaining high print speed.

Vibrating the ink meniscus via piezoelectric actuation suppresses solvent evaporation and prevents nozzle clogging in volatile ink systems.

A density correction method replaces failed ink outlet values with adjacent reference data to maintain uniform print quality.

An arched paper stack passes through an obstruction element that blocks multiple sheets, resolving static attraction issues during printer feeding.

Time-division selection energizes non-target heaters before and after the target heater to minimize parasitic impedance dullness.

A hydrophilic composition with a high boiling point humectant creates a dried absorption layer on an indirect inkjet blanket to promote aqueous ink spreading.

Illumination member detects plug detachment to light the ink refill inlet, resolving visibility issues during refilling.

An inkjet printer monitors ink pump driving speed to detect performance degradation and maintain consistent fluid circulation.

A liquid ejection device controller estimates temperature data during non-energized states using stored history information to set purge conditions.

A liquid supply system uses a pressure control valve to manage ink flow between the cartridge and injection head.

A liquid supply apparatus uses a separate buffer tank with an elevated bottom face to enable efficient liquid return.

Rotatable transport rollers guide cut sheet media through plasma discharge zones to maintain precise positioning and speed control.

A switch manages fluid communication between a damper chamber and a pump, enabling rapid ink supply while preventing air from entering the recording head.

Dual detection patterns identify failed nozzles for complementary printing without frequent maintenance.

A movable platen and lower roller mechanism shifts downward to expose the conveyance path.

Ultraviolet light emitting diodes dry printer ink layers through selective colorant absorption, preventing substrate damage from uneven evaporation rates.

An auxiliary media tray stabilizes heavy print rolls during insertion, eliminating complex automation and reducing user effort.

Transport rollers maintain a formed wave shape on paper while a control unit adjusts ink discharge timing to ensure consistent landing across peaks and troughs.

Dual valve elements restrict air bubbles in flow paths during setup, ensuring reliable ink supply and maintaining image quality.

Centering the operating unit over the movable unit resolves maintenance access contradictions while reducing installation space requirements.

A nested core support member prevents roll body sagging during smooth feeding of wide rolls.

Segmenting the housing into a formable main body and a heat resistant cover resolves molding flowability trade offs while preventing thermal damage.

Segmented re-expansion signals with distinct voltage ratios stabilize meniscus vibration and reduce tail portions of ejected ink droplets.

Segmented nozzle arrays with periodic discharge rhythms mitigate air current interference to maintain high-resolution image quality at elevated speeds.

A liquid discharging apparatus uses a switching assembly to control an atmosphere communication path for reliable air intake into the reservoir section.

Steeper upstream support angles prevent trailing edge contact, ensuring reliable feeding of rigid media while reducing rear installation space.

Segmenting server functions into dedicated program management and execution units prevents operation failures during updates.

A recording apparatus predicts take-up time before production starts.