Article Feeders TRIZ Cases

A paper feed device tray adjusts its state to incline sheets, enabling smooth alignment and reliable feeding across varying thicknesses.

A driven roller moves diagonally forward through a bearing groove to absorb brake force during paper transport.

A component feeding device adjusts sprocket backlash to ensure proper tape transport.

A medium conveying apparatus detects multi-feed events and automatically retracts sheets to the loading tray using a processor-controlled feed and brake roller system.

A sheet transfer guide uses a coat layer with lower surface roughness to minimize contact noise during conveyance.

A sheet conveying device bridges a spring between press levers to equalize clamping force, preventing paper skewing and jamming during image formation.

Corner relief features and elastomeric guides delay sheet contact with the wall, reducing media jams and damage in printing devices.

Offset driven roller nips on a common shaft reduce feeding load variations and improve reliability.

Segmented roller groups align drive centers to respective areas, preventing card damage and skew during compact apparatus operation.

Aligning the separation nip and conveyance nip on a single line eliminates uneven friction forces that cause roller wear and conveyance failures.

Guide members engage the rotation shaft to align sheets toward the nip position, preventing jams caused by inadequate guidance.

Segmented doors and dynamic positioning resolve the trade-off between lever accessibility and internal processing space.

Grooved rollers accommodate foreign matter while maintaining friction, preventing paper dust from causing jams in the nip region.

Asymmetric bending of the second shaft replaces separate pressers to suppress medium wrinkles and prevent image quality degradation in conveying apparatuses.

A paper feeding mechanism uses a pivoted input tray and cam-driven elevating assembly to maintain stable picking force as the paper stack thins.

Protection members suppress foreign matter adhesion and ultrasonic wave reflection variations, enhancing multi-feed detection accuracy.

A comparison circuit evaluates ultrasonic wave levels to identify sheet presence in conveyance paths.

A paper sheet processing apparatus restricts user input to compatible processing conditions based on stored unit information.

Merging print and scan paths reduces mechanical complexity while automated calibration maintains color consistency.

A paper feeder cleans conveyance rollers by rotating them in contact to remove accumulated paper dust without dedicated cleaning members.

A sheet feeding apparatus uses a lateral cam and curved contact member to lift the supporting plate.

Differential roller biasing suppresses speed differences between wide and narrow media without deforming the housing.

A document feeding clutch prevents speed fluctuations during image reading.

A rack and pinion mechanism switches a path blocking member, preventing apparatus height increases while maintaining high media loading capacity.

A lift plate retracts during reverse conveying to prevent sheet overlap and jamming.

A common material transport path connects multiple feeders to an insertion subsystem via shared routing mechanisms.

Automated detection coordinates lifters to eliminate steps between units, preventing stacking errors and reducing user waiting time.

Reciprocally moving the electrostatic chucking mat prevents bending and ensures reliable thin media cutting.

Rotatable support pivots idle rollers to form drive nips, accommodating oversized sheets without increasing device size.

Segmented conveyance units with differential speeds suppress sheet displacement during cutting, reducing roller wear while maintaining alignment precision.

An asymmetric triple roller structure prevents shaking during duplex printing by aligning force vectors through the driving roller center.

A pivotable document stopper manages sheet entry by switching between suppression and reception postures, resolving reliability versus complexity trade-offs.

A sheet conveying apparatus employs a pivotable stopper cam to hold the stopper distal end in position.

Independent drives adjust suction belt speed profiles to correct positional deviations caused by elasticity changes, ensuring exact sheet arrival timing.

Flapper relief in guide members prevents envelope skewing during curved conveyance by accommodating opening flappers.

An evacuator moves detection members aside so the tray accommodates thicker paper stacks without damaging wheels.

Interlocking comb-shaped sliding surfaces stabilize viscous damper force to prevent paper jams from inertia without increasing printer volume.

A medium conveying apparatus calculates continuous overlap length to detect multi-feed conditions using an overlap detection sensor.

Independent driving sources for the feed roller and support section prevent space creation ahead of the medium, reducing jam occurrence.

Detection units measure sheet features to prevent incorrect feeding from multiple sources, resolving reliability and ease of operation trade-offs.

Segmenting the multipurpose feed roller into smaller dedicated units resolves the contradiction between reliable paper handling and compact apparatus size.

A pivotable locking member engages a rotatable protrusion to secure the openable and closable roller assembly.

V-shaped holding elements stabilize open booklets against tilting, while a feed device advances single pages through a retaining gate.

A sheet conveyer uses a pivotable roller holder and guide member to manage roller contact states.

A modular sheet processing machine uses suction transport means to move substrates along a flat path.

A sheet feeding unit uses a one-way clutch to eliminate loops during roller rotation.

Metal plate member distributes spring reaction forces to prevent casing creep deformation and maintain consistent nipping force.

Bent holding arms enable roller installation through an opening, reducing jamming risks in the medium conveying apparatus.

High velocity air over a curved baffle creates lower pressure to flatten sheet edges and prevent jams.

A suction brake uses an obturator arrangement to regulate gas flow through apertures.