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.