Electrographic Process Apparatus TRIZ Cases

Curved holding portion shapes elastic member deformation to adjust pressure across fixing nip, reducing manufacturing cost of uniform thickness members.

An intermediate transfer member uses controlled carbon black to stabilize electrical resistance.

Segmenting inline and offline jobs allows the print system to recover interrupted post-processing without delaying other operations.

A transfer drum with a groove-like recess directs nip member contact to the upstream side during image transfer.

Multi-color test patterns resolve sensor installation alignment errors to ensure precise color misregistration measurement.

A conductive member electrically connects a metal shutter to a shield case, equalizing their potentials for accurate surface potential detection.

A controller uses an intermediary detection sheet to verify conveyance speed detectability, preventing print failures on irregular continuous sheets.

A toner image fixing method uses 280 to 480 nm light irradiation combined with mechanical pressure application.

A printing system inspects printed sheets for defects to direct normal output to a primary destination.

Segmented plate springs urge a sliding sheet against an endless belt in a fixing device, preventing slipping and wrinkling while reducing frictional forces.

Gas supply vents air through ventilation holes to maintain sealing temperature below 350°C and prevent thermal degradation.

Straight line test patterns minimize defocusing influence during developing bias correction, maintaining isolated dot reproducibility in LED exposure systems.

A booklet making apparatus bonds continuous paper sheets into double sets for stable transport and precise splitting.

Controller prompts user to designate a replaced fixing unit, preventing print quality degradation from scratches caused by incompatible sheet widths.

PDMS dampeners positioned within 100 microns of nozzles absorb pressure surges, preventing ink flooding and blockages.

A controller tracks photosensitive drum rotations in both contact and separation states to determine wear.

A drawer-side electrical contact connects to a main body-side connector via an elastic member that adjusts length during cover operations.

A swingable link member separates the developing roller from the photosensitive drum to maintain precise alignment.

Adjusting light emission angles and distances across multiple element groups prevents electrostatic latent image deterioration on curved surfaces.

A toner discharging structure uses accelerating blowing blades to generate wind for developer movement.

An undercoat layer with surface-treated titanium oxide particles enhances charge interchange characteristics and adhesion on the electro-conductive support.

A fixing unit uses a nonconductive cap to electrically insulate the coil from the conductive shaft.

Polypropylene block copolymer toner fixes to plastic film while preventing hot offset and sheet wrapping.

Rotary member with detectable portions allows sensor detection of cartridge status, eliminating complex clutch mechanisms and reducing manufacturing costs.

A pivotable housing positions electric contacts out of engagement during insertion to prevent mechanical rubbing.

Varying the substrate width places the temperature sensor away from non-linear edges, resolving temperature measurement accuracy versus uniformity trade-offs.

Pressing portion elastically deforms second wall to move peeling member closer to image carrier.

Stored temperature rising rate values allow the controller to initiate sheet feeding before measurement completes, reducing first printout time.

Rotating preview images to match document orientation resolves conflicts between tray alignment and user verification needs.

A switching gear control device manages motor rotation to disengage transmission components during document jams.

A developer cartridge casing uses a fitting member to lock a pressing member, maintaining constant force on the developing agent carrier.

Follower member transmits force to close toner discharge port, eliminating gap-induced leakage during cartridge removal.

A developer container integrates a helical ridge and limiter to prevent toner aggregation near the discharge port.

A photosensitive drum system adjusts exposure brightness based on detected charging current to maintain surface potential.

Pivoting guide members create a gap for manual jam extraction, preventing sheet tearing during relay unit removal.

A rotational polygon mirror system identifies reflection faces using precise signal timing to correct image data.

Multi-layer toner structure uses distinct wax types to control dust emission during image fixation.

A photosensitive drum bearing uses two inner contact planes to support the flange and maintain precise rotational positioning.

Sliding shutter film manages toner discharge port alignment to prevent residue during container attachment.

A pivotable arm member with a weight portion raises the feed roller from the sheet surface before feeding begins.

Hinged cover holds original sheets via static electricity or vacuum suction, eliminating manual collation steps in single-sheet-feed copiers.

A linear cam member moves intermediate gears to engage or disengage drives, reducing toner damage by limiting rotation to required units.

Optimizing base and layer Rz values balances electrical resistance and discharge to eliminate image unevenness.

Blank media transport removes adhesive residue from the fixing unit, reducing maintenance labor and costs.

A developing device seal member includes a non-contact portion to shield the photoreceptor drum from toner scattering.

Surface-treated inorganic fine particles form a cross-linked layer that improves wear resistance while preventing image blurring.

Oblique ribs on the bottom surface reinforce the housing, maintaining strength and accuracy despite reduced thickness.

Downstream image body spacing reduction compensates for change roller induced meandering to suppress cumulative misregistration errors.

A toner formulation controls conductivity and metal content to maintain homogeneous ionic distribution within the binder resin.

Segmented detection isolates lock mechanism failures from sensor errors, reducing repair time by distinguishing abnormal parts without user inquiry.