Other Printing Apparatus TRIZ Cases

Actuating a piezoelectric transducer at sub-equilibrium frequencies shrinks air bubbles in ink ducts while maintaining drop ejection.

A predictive replenishment system orders replacement consumables based on current and historical usage metrics to ensure timely delivery.

Actuators dynamically control vacuum chamber cover openings to minimize leakage and improve substrate flattening across varying sizes.

A movable direct sensor tracks sheet edges to eliminate sensing disabled periods, ensuring accurate conveyance and high image quality.

Feedback loop monitors droplet volume and placement to adjust ejection parameters, maintaining print consistency despite environmental drift.

Micro openings in the protective coating allow adhesives to penetrate and bond, resolving the trade-off between surface protection and manufacturing adhesion.

A sliding lock pin on the carriage structure restricts manifold unlatching, preventing air entrainment and ink starvation during operation.

A printing apparatus control unit executes transportation preparatory operations upon contract cancellation to prepare the device for safe transport.

Direct attachment of external components via housing-integrated engagement portions eliminates indirect mounting errors and ensures precise sheet conveyance.

A control device detects roll paper supply states to switch between roll and cut sheet conveyance paths.

A valve assembly with a flexible plate and actuator selectively controls airflow through vacuum conveyor platen holes.

Opposing gas flows separate heating and drying spaces via a partition member, preventing paper powder contamination of the heating unit.

A positioning part spaces adjacent ink tanks to prevent mechanical contact with protective films.

Adjusting suction force by detected work width prevents conveyance failures and maintains image quality across varying material sizes.

Relocating replacement openings to the front face resolves cramped spacing constraints between adjacent printers.

A discharging apparatus uses a control unit to limit liquid discharge based on detected pressure conditions.

A changing unit rotates recording media to direct it toward multiple post-processing devices while maintaining consistent port heights.

An intermediary lower paper guide narrows the blade-to-port gap, preventing resilient paper from jamming between fixed and movable blades.

Pressure vessels remove bubbles from nozzles while humidity units manage solvent evaporation to prevent thickness variations.

Recessed housing walls and absorption members contain spilled ink, preventing carriage soiling during carriage movement.

Segmented pressing member with detection opening resolves slow heat response by enabling precise temperature monitoring of the inner belt surface.

Protrusions on an air-permeable belt engage roller recesses to constrain lateral position, preventing wrinkles and eliminating complex sensor systems.

Segmenting the tiltable panel from a separate pivot-mounted cover resolves the contradiction between operator accessibility and dust ingress prevention.

A liquid ejecting system detects specific input data to trigger immediate nozzle inspection during the preparation phase.

A removable protective member intervenes between first and second cutters in an image recording apparatus during attachment.

Adjustable edge seals reposition to match print media width, preventing air leakage and fluttering that degrade image quality.

A droplet drying device uses a two-dimensional light emitting device array with differentiated irradiation zones.

Segmented wall portions shield the pump unit when the recording body slides open, resolving ink leakage risks during maintenance operations.

Pinching rollers and auxiliary support members reduce sliding resistance, enabling accurate feeding of large-scale plate-like printing media.

Electronic pressure sensors replace mechanical valves to control ink reservoir pressure, reducing friction and wear.

Intersecting ink passage surfaces guide droplets via gravity and capillary forces, eliminating step-like marks that disrupt flow.

Replacing toothed gears with a belt transmission reduces backlash-induced tensile force fluctuations and improves printing quality.

Control unit compares succeeding sheet length against kind-specific thresholds to adjust feed amount and prevent misalignment from warpage.

Heated rotating members with through holes discharge vapor during ink drying, preventing sheet curling and improving printing quality.

Movable walls on a liquid container tray adjust position to suppress orientation changes in ink cartridges, ensuring stable alignment.

Information processing device obtains printer automatic processing information to provide user interface notifications about print settings.

A waveform generating unit produces drive voltage waveforms for individual piezoelectric nozzles.

Controller estimates mixed ink viscosity from residual and refill amounts, adjusting drive waveforms to prevent nozzle clogging.

A drive roller controller adjusts the speed difference between upstream and downstream nozzles to maintain consistent ink droplet landing positions.

Segmenting the reservoir from the printer housing extends ink duration without increasing device complexity.

Sheet conveyor exposes inked media to external air for moisture evaporation, preventing image distortion from wet ink contact.

Segmenting the roller assembly with a recessed design and intermediary tape resolves manufacturing precision versus device complexity contradictions.

Rotary knife or laser cutter trims irregular substrate edges prior to printing, preventing printhead damage from protruding fibers.

Voltage dividing circuits formed by test and termination resistors detect connector faults to prevent printing errors.

A transportation belt moves to a retracted position before the unit draws out through an opening.

Segmented reinforcement plate joins casing and lid member, preventing liquid return and supply issues caused by filler-induced weldability loss.

A non-uniform print mask design reduces inter-swath banding by varying ink density across nozzle groups.

Swing members rock holding pins to enter small inner diameter tubular materials, resolving loading failures in conventional printers.

Segmented nozzle rows in an inkjet print head perform preliminary ejection to reduce ink consumption and paper waste during maintenance cycles.

Positioning a line image sensor perpendicular to the conveying direction enables nozzle failure detection without increasing the apparatus size.