Other Printing Apparatus TRIZ Cases

Intersecting laser beams detect liquid drop ejection direction deviations, resolving single-beam blind spots to improve print reliability.

Segmented verification phases resolve signal collisions on bus wiring to improve ink tank mounting determination accuracy.

Segmented printing units eliminate flexible tube damage and reduce maintenance downtime by enabling quick ink color swaps.

A printer lower guide mediates recording paper position to prevent warping and jamming when users pull partially printed sheets from the thermal head.

A density measurement value conversion process translates pre-dry ink readings into post-dry equivalents for accurate image processing.

Movable member slides along a guide to detect ink levels via optical signals.

Spectroscopic analysis identifies unknown print media types, resolving the contradiction between ease of operation and accurate medium registration.

A control unit retracts a printer's medium receiving tray into the housing when no paper is present or an error occurs.

Superposed record patterns reveal ink droplet ejection speed characteristics for rapid drive voltage assessment.

A printing apparatus corrects print head temperature using environmental sensor data to maintain calibration accuracy.

Segmented abutment members prevent excessive load on sheets during conveyance, maintaining precise ink droplet landing positions.

Segmented air channels maintain uniform operating temperatures across multiple print heads while simplifying maintenance access.

A controller adjusts flushing intervals based on discharge amounts to maintain ink viscosity and prevent nozzle clogging.

Segmented support surfaces use no-suction-regions to register print media, eliminating air currents that deflect ink droplets and cause image blur.

A camera records the wiping process of an inkjet printhead surface, revealing detailed ink situation data lost during standard cleaning operations.

First and second inclined portions reduce remaining ink volume in tilted states while a gap prevents meniscus formation at the electrode member.

A liquid ejecting apparatus controls ink distribution through a pressurizing mechanism and on-off valve.

An adjustable support beam aligns an optical emission beam parallel to a transport path, resolving cumbersome alignment processes that degrade print quality.

A detection element applies compressive force to a moving substrate and retracts upon artefact contact.

Detection units identify media joint portions to extend heating time, preventing insufficient drying of ink at seams.

A color calibration chart maps process color variations to reference values for automated selection.

A printer control section moves the print head outside the sheet path before transport to prevent contact with the medium.

A flushing-data producing section positions ejection dots away from image boundaries.

A detection device uses ultrasonic sensing to identify medium contact via elastic waves generated by relative velocity changes.

A movable blade with a cutout groove and slant surface corner enables partial cutting of sheet material.

Segmented nozzle types use dedicated pixel patterns to prevent white streaks and density unevenness at band boundaries.

Adjusting incentive levels by collection period resolves the contradiction between insufficient recycled supply and excessive cost.

A rotating first member dynamically expands the suction region on a bearing drum to accommodate varying sheet dimensions.

A printing method forms smaller second dots at specific pixel positions to smooth slanting and rounded image outlines.

Dual-direction rotation guides inward wound rolls into separate paths, resolving winding direction constraints without extra mechanisms.

A printer control unit extends purge intervals based on user evaluation of test prints to conserve ink.

A carriage holds two recording heads displaced in the sub-scanning direction while a reciprocally movable maintenance device services both units.

Thermal sensors detect rising temperatures near nozzles and automatically halt firing to prevent heat-induced damage during high-speed printing.

Separate detection belts track feeder belt speed without deformation, correcting recording position errors.

A recording apparatus positions an edge detection unit within the carriage movement region to enable compact design.

An electromagnetic clutch mechanism controls power transmission to a second roller pair in a printing apparatus.

Bipolar drive voltage reduces potential difference between electrodes and mask plate, preventing ink electrolysis and nozzle clogging.

A timing signal generator produces ejection pulses based on paper travel distance to drive an inkjet head.

Negative pressure in a narrow gap accelerates air flow to sweep paper dust away, preventing nozzle clogging without complex mechanical collectors.

Silicon nitride and tantalum oxide layers reduce thermal expansion mismatch, preventing separation in the thermal head.

A control unit identifies print medium orientation errors using an existing edge sensor and stored size data to guide user correction.

A liquid dispensing apparatus uses light irradiation to heat dispensed fluid and form precise droplets.

A liquid ejection apparatus adjusts discharge volume to maintain nozzle flow.

A shared optical sensor detects paper presence in multiple feed trays using reflecting portions, reducing apparatus size and part count.

A liquid discharging apparatus controls an atmosphere communication path via a valve to maintain reservoir pressure.

A liquid supply apparatus uses light transmission through a deformable ink pack to detect remaining volume.