Other Printing Apparatus TRIZ Cases

Pump-driven ink delivery systems maintain pressure differentials across print heads, enabling consistent fluid flow regardless of gravity orientation.

An opening in the holding portion directs spilled ink along a path to a receiving vessel, preventing adhesion on internal components.

A fan extracts vapor from the recording medium back side, preventing dew condensation on the support section during electromagnetic wave drying.

A controller adjusts motor current limits to feed sheets during image recording.

Diagonal acoustic barriers segment vacuum platen chambers into sub-chambers, suppressing whistling noise while maintaining stable sheet holding.

A movable engaging part shifts between engagement and release positions, preventing liquid leakage while enabling easy cover pivoting.

Staggered short nozzle rows eliminate streak-shaped density unevenness by applying real-time density corrections based on recording medium edge detection.

A printing apparatus control unit recursively calculates load acting on conveyance rollers to adjust driving units during state transitions.

A printing apparatus control unit sets an ink-free margin at the leading end of the medium during nozzle flushing operations.

Dynamic warm-up control adjusts preparation time based on condensation detection, reducing idle periods while preventing image quality degradation.

Rotating roller support stays inside the housing, eliminating external bulk and reducing device deterioration risks.

Controller switches optical sensor from constant to intermittent mode after a set time.

A charging roller moves away from a transport belt to prevent dirt accumulation during non-printing operations.

A reduction counter circuit updates storage with consumption data to maintain accurate residual amount information in recording material cartridges.

Vacuum tray holds discontinuous media to resolve alignment issues when switching between roll-to-roll and flat bed modes.

Rack and pinion gears in a printer regulation device adjust guide support units to simplify rolled sheet alignment.

A clock latch circuit stores data bits during high voltage pulses, reducing input pad requirements while maintaining independent firing resistor control.

Dynamic nozzle positioning aligns ink deposition with media permeation speed, resolving quality inconsistencies across diverse print substrates.

A removable cutter accessory with a movable access door reduces maintenance downtime by eliminating the need to remove multiple guard plates.

Segmented vacuum chambers in a honeycomb platen maintain media flatness while reducing air turbulence that causes image blurring.

A medium drying device uses a heat source unit opposing the front surface without insulation to enable rapid thermal conduction for liquid evaporation.

A printing apparatus analyzes residual vibration signals to determine liquid ejection states in piezoelectric inkjet nozzles.

A recording apparatus nests a medium cassette protruding portion within a support column accommodating portion to maintain compact dimensions.

A control unit varies cleaning liquid volume based on ink type to optimize nozzle maintenance.

Automated image analysis determines speed compensation factors by comparing printed patterns at varying media velocities.

Integrating waste ink channels inside the platen duct maintains negative pressure stability while recovering ink without enlarging the apparatus.

Onboard energy storage powers gripper mechanisms, reducing moving weight and complexity while handling large format sheets.

Segmented UV irradiation during reciprocating head motion cures ink on media while preventing nozzle clogging and maintaining throughput.

A pressing cylinder sandwiches sheets against transfer cylinders to eliminate floating and wrinkles caused by brush wear.

A multi-stage irradiation method cures UV ink dots sequentially to maintain precise positioning during high-density printing.

A liquid ejecting apparatus frame includes a passage hole allowing the liquid flowing portion to deform and detach from the housing structure.

Staged electromagnetic forces in a voice coil motor cutter prevent bouncing by overcoming sliding resistance and spring variation during movement.

Movable wiper holding portions with elastic biasing stabilize contact force, resolving instability from spring-only designs to ensure effective ink removal.

A print head assembly adjusts movement timing based on detected media temperature to ensure proper ink adhesion.

Rear-mounted hinge shafts on a rotatable thermal head maintain line contact with the platen roller, preventing surface compression and uneven heating.

A printing apparatus shares a sensor signal via dedicated lines to multiple circuit boards for direct motor control.

Segmented frame design reduces transport apparatus size while preventing frame warping caused by urging member forces through overlapping rigid second frames.

A curved guide panel stabilizes the paper orientation and reduces deformation while enabling reliable detection by an internal lever.

Extending passages horizontally allows front-rear cartridge replacement, resolving vertical access bottlenecks while maintaining reliable ink flow.

Selective valve control intensifies flow toward targeted heads, resolving high viscosity ink clogging without increasing pump complexity.

Introducing an air supply mechanism upstream of a gear pump regulates dissolved oxygen levels, suppressing polymerization reactions caused by frictional heat.

Rotating the cap moves a projection to push the valve open for pressure release, preventing ink spurtage from creep deformation.

An electrostatic charging apparatus replaces vacuum systems to eliminate air currents that disturb ink flow, ensuring stable sheet transport and image quality.

A liquid ejecting head controller segments dot pattern data to manage nozzle ejection timing and prevent ink waste during operation.

Distinct roller pair rotation speeds and conveyance forces prevent recording medium skewing and damage during high-speed liquid ejection.

Radial ink absorbers rotate around a shaft to switch cleaning positions, preventing color mixing while enabling compact printer recovery device design.