Inventor

KNAPP JOHN F

US67 patents

⚠️ This page may combine multiple inventors who share the name “KNAPP JOHN F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KNAPP JOHN F

XEROX CORP

Process for magnetic image character recognition

Method and apparatus for liquid image development and transfer

Copy quality monitoring for magnetic images

Hybrid electrophotographic apparatus for custom color printing

Hybrid electrophotographic apparatus for custom color printing

System for cleaning contaminants from a vacuum assisted image conditioning roll

System for purging contaminants from a vacuum assisted image conditioning roll

Liquid developing material applicator

Roller for controlling application of carrier liquid

Toner compositions with modified charge enhancing additives

Toner and developer compositions with conductive carrier components

Negatively charged colored toner compositions

Development process with toner composition containing low molecular weight waxes

Toner compositions with crosslinked resins and low molecular weight wax components

Compact single component development system with modified toner agitator and toner dispense auger disposed therein

Tandem trilevel process color printer

Process for magnetic image character recognition

Single-component electrophotographic development system

Liquid developer compositions and processes

Liquid electrophotographic reproduction machine employing heated carrier liquid

Basic developability control in single component development system

Hybrid color printing machine

Development system

Meterless single component development

Compact two-component development system with zonal toner dispenser control

Stable color developer compositions and process for the preparation thereof

Process for preparing encapsulated color toner compositions

Process for ultra high quality images with magnetic developer composition

Developer compositions

Apparatus for color development with a magnetic separator containing a stationary shell with rotating magnets

Process for achieving consistent high quality images with magnetic developer composition

Conductive single component electrophotographic magnetic toner

Hybrid electrophotographic apparatus for custom color printing

Low cost trim-gap-conductivity TC sensor

Wire-less hybrid scavengeless development system

Electrical biasing scheme for preventing overplating in an image-on-image electrostatographic printing system

Lid machine having a differential air pressure assisted blotting device

Method and apparatus for sensing and cleaning developer fluid

Single-component electrophotographic development system

Metal blade cleaning of an amorphous silicon receptor

Developer composition for non-interactive magnetic brush development

Apparatus and method for non-interactive magnetic brush development

Developer composition for non-interactive magnetic brush development

Apparatus and method for non-interactive magnetic brush development

Liquid toner image conditioning roll having image protection surface layer

Continuous halftoning using quarternary pixel cells

Process for colored toners with selected triboelectric characteristics

Process for preventing deposition of toner particles in an imaging apparatus

Conductive single component magnetic toner for use in electronic printing devices

(unassigned)

Wheelable backpack