Electrographic Process Apparatus TRIZ Cases

Electrostatic discharge from a facing charge removal member prevents transfer current leakage and simplifies apparatus configuration.

Segmented guides position printing sheets onto a belt unit bridging surface for precise image formation.

A hybrid printer detects sheet reuse levels to adjust drying temperature and speed, preventing image quality deterioration from residual erasable ink.

Forming a preliminary toner supply image weakens adhesive force between the belt and toner, suppressing transfer failures on high sensitive sheets.

A computing section calculates time average toner coverage to trigger forcible ejection patterns on the image bearing member.

Segmented process cartridges allow independent toner refilling, reducing operational costs while maintaining image quality.

Circuit board integration grounds pressing plate, reducing part count and production cost.

Dither matrix submatrices control exposure regions to compensate for non-uniform scan speeds, ensuring uniform exposure amount and preventing image failures.

A static eliminating member projects into a sheet conveying passage to remove electric charges from the image forming apparatus.

A bracket with a hooking portion and hole simplifies coil spring mounting in image forming apparatuses.

Segmented inner surface guide heating elements compensate for thermal loss at endless belt edges, ensuring uniform temperature distribution during image fixing.

A controller specifies recording material type via test printing results.

Opposing double spiral wings lift developer to eliminate stagnation in the stirring unit.

Asymmetric engaging portions on a developing cartridge cover enable attachment from either end, resolving usability issues during recycling.

Dynamic speed adjustment reduces motor load on the decurler unit while maintaining consistent sheet discharge productivity.

A polyolefin toner with specific DSC exothermic peaks bonds to plastic substrates.

A liquid development apparatus uses a pool forming member to supply cleaning liquid for efficient toner removal from the supply roller surface.

A magnetic seal confines developer particles using adjacent same-polarity poles to prevent leakage from the developing sleeve.

A processing system registers identification information to allow connected devices to execute requests without redundant user authentication steps.

Positioning a movable second peel-off unit upstream suppresses trailing end smearing and prevents jamming in image forming apparatuses.

A photoreceptor uppermost surface layer uses reactive charge transporting materials to form a cured film with controlled relative dielectric constant.

Opposing flexible film units on a rotating shaft maintain powder conveyance ability under high humidity, temperature, and vibration.

Ductile particles embedded in a resistive film reduce cracking and delamination to expand the optimal gap window.

A moving unit adjusts the nip width between heating and pressure units to maintain consistent fixing pressure.

An interposed member with segmented thicknesses adapts the nip state between rollers, preventing paper jams during transport of diverse media.

A rotatable light shield interposes between a second heater and a fixing rotator, preventing lateral overheating in image forming apparatuses.

A movable holder supports the electrical contact surface of a developing cartridge to maintain stable relay connections.

A sensor control apparatus connects detectors in series using a control unit with switches to apply distinct voltages for independent operation.

An interlocked LED cover retracts during cartridge insertion to prevent toner soiling on the light emitting element array.

Segmenting the support into multiple legs compensates for thermal expansion, stabilizing the belt guide position and maintaining sheet conveyance consistency.

A fixing roller control system rotates the heat conductor to maintain a wait temperature using pressure roller heat.

Spherical filler prevents flat plate alignment in a polyimide fixing belt, resolving the trade-off between thermal conductivity and sliding properties.

A controller adjusts cooling fan modes based on local toner image density to optimize air blowing amounts.

Dynamic voltage adjustment suppresses density non-uniformity at the central portion and prevents improper transfer at the leading end of the recording material.

The limiting portion in the hole portion catches the closing member caught portion to prevent ejection, suppressing contamination and improving cleanability.

A pressure-bonding portion joins recording material after controlled cooling to balance adhesive force.

A toner formulation with specific thermal characteristics suppresses gloss changes when rubbed by maintaining image surface smoothness under pressure.

A fixing device controller adjusts heating member power based on acquired toner image density information to optimize target temperatures.

Fixing the static eliminator to a rail member maintains position precision while allowing separate replacement of the drum unit.

Relocating the light emission unit to the main body and adding a regulation member prevents perpendicular cartridge movement, preserving positional accuracy.

A printer control unit manages power state transitions using specific sensor signals to trigger display actions.

A reusable toner refill apparatus coordinates with multiple image forming devices through a shared memory chip.

Oblique toner-conveying pipe holds residual toner between protruding belt sections and pipe walls, preventing oscillation-induced spilling.

A protecting sheet along the inner peripheral surface of a belt member suppresses deformation, preventing dents and folds during installation.

Non-contact RFID signals measure toner content and rotation angles, eliminating separate sensors to reduce device complexity.

A control device estimates cleaning blade deterioration by calculating a developing current ratio derived from varying DC bias voltages.

Disengages color transfer rolls to prevent unnecessary drum wear and toner agitation during black-only printing sequences.