Other Printing Apparatus TRIZ Cases

A transmission mechanism blocks reverse rotation of conveyance and discharge rollers during motor lock states.

Printer tray printed circuit assembly alters output signals to indicate connected tray configurations, reducing manufacturing complexity and inventory costs.

Segmented rotating members adjust back tension via elastic elements, resolving sheet transfer precision issues without increasing device complexity.

Change-over switches route drive voltage from healthy power supply circuits to affected inkjet heads during failures.

Vertical stacking overlaps main tank, sub tank, and head projections to reduce footprint while maintaining accessibility.

A preheating strobe generation circuit compresses printing signal waveforms to drive thermal heating elements.

Individualized waveform selection corrects trajectory variations from manufacturing defects, ensuring consistent fluid ejection.

Upper hinge rotation reduces cover protrusion interference, enabling smooth media retrieval without manual obstruction.

Periodic action in the drive signal eliminates alternating current components, preventing sub-satellite formation and reducing power consumption.

Print control section adjusts adjacent pixel densities to compensate for defective nozzle ink ejection, reducing dot omission visibility and density unevenness.

Real-time current sensing replaces offline image analysis to resolve the trade-off between high-frequency throughput and sub-micron print precision.

Segmented enclosure covers inkjet print head and curing source, removing emissions via exhaust to prevent harmful radiation exposure.

A printing system determines a first color from scanned document images to guide user selection for two-color copying.

A printing apparatus stores roller fluctuation data to control conveyance rotation.

Dual tank inkjet systems calculate first tank levels via pump states to resolve measurement precision issues in large reservoirs.

A liquid cartridge sensor generates a potential based on a magnetic field to detect mounting state.

Adjustable roller pressure prevents ribbon wrinkles and breakage during tape transport.

Variable air blowing amounts prevent excessive cooling at uncovered regions, ensuring consistent drying efficiency.

A platen adjustment mechanism uses cam elements to move the print zone support relative to the driver input.

Segmented heating sections create a dynamic temperature gradient to prevent thermal expansion wrinkles in inkjet recording media.

Extending the primary ink chamber rearward increases storage capacity without widening the device, eliminating void spaces between multiple tanks.

A liquid storage device uses a sealing member that opens during shaft rotation to prevent wear.

A protective member covers the nozzle plate in a fluid ejecting head to transfer heat from an internal heater.

A drive control apparatus integrates output signals from connection and operation circuits to identify specific signal wire defects in ink-jet printers.

A printing apparatus adjusts low-pass filter stages based on conveyance velocity to process encoder data accurately.

A control unit determines delay accumulation necessity during recovery operations to manage sheet discharge tray movement.

A streak intensity signal derives from overlapping local regions to detect defects across intersecting directions.

A fixing member positioned above the agitator blade prevents ink tube entanglement with the rotating shaft.

A liquid discharge controller identifies defective nozzles and excludes them from recording operations to maintain image continuity.

A liquid supply unit uses a flexible film and transmitting member to control ink flow between pressure chambers.

An in-situ cleaning web moves opposite the belt direction to remove contaminants, preventing system downtime from manual cleaning.

Segmented pre-treatment nozzles adjust landing time differences to prevent excessive permeation in high absorbency mediums, improving printing quality.

An inclined flow path directs ingress liquid away from the roll sheet and circuit board toward a hinge-integrated discharge port.

A waste liquid collector uses a slidable cover to seal the inlet during tank insertion.

A floating bar applies downward pressure to keep the medium flat against the platen during ink jet printing.

A detection unit monitors ink levels in both cartridge and tank using a shared optical path with aligned protrusions.

Alternating downstream recesses suppress floatation to prevent image quality degradation.

A printing apparatus detects web paper deformation by calculating density standard deviations from a printed correcting chart.

A recording apparatus adjusts head scanning position using raster-dependent correction amounts to maintain precise dot placement.

A spatial filter modulates light from ink droplets to generate time-varying signals for dynamic analysis.

A support member with a deposit recess stabilizes paper alignment during marginless inkjet recording.

A printer control method interrupts automatic nozzle detection to execute immediate paper cutting.

A printing apparatus carriage detects cut portions to adjust moving distances.

A print controller deposits metadata and finishing instructions directly onto the recording medium before cutting to preserve information integrity.

Narrow blowing ports increase air velocity to reduce heat loss and pressure drop while maintaining uniform drying performance.

A liquid ejecting head uses piezoelectric element voltage monitoring to detect pump abnormalities during cleaning cycles.

A power supply device manages voltage resumption using dual threshold voltages to prevent overcurrents during abnormal operations.

A printing apparatus uses an energy line irradiator to heat ink containing low and high boiling solvents, regulating evaporation rates during the drying process.