Resources Contact Us Home
Electrostatographic single-pass multiple-station printer for forming an image on a web

Image Number 16 for United States Patent #5455668.

An electrostatographic single-pass multiple station multi-color printer for forming an image onto a web, eg of paper, is described. A plurality of toner image-producing electrostatographic printing stations each have a rotatable endless surface such as the photoconductive surface of a cylindrical drum onto which a toner image can be formed. The paper web is conveyed in succession past the printing stations. The speed and tension of the web is controlled while it is running past the printing stations. Guiding rollers which determine for the web wrapping angles of about about the drum surface. A corona device transfers the toner image on each drum onto the web. The corona device, the wrapping angles .omega. and the web tension are such that adherent contact of the web with the drum surface is such that the moving paper web controls the peripheral speed of the drum in synchronism with the movement of the web. Slippage between the drum surface and the paper web is thereby eliminated, enabling accurate registration of superimposed images on the paper web.

  Recently Added Patents
System for wireless local area network (WLAN) transmission and for coexistence of WLAN and another type of wireless transmission and methods thereof
System and method for efficient association of a power outlet and device
System and method for terminating communication sessions with roaming mobile devices
Method and system for presenting live video from video capture devices on a computer monitor
Method of measuring specific absorption rate of electromagnetic waves
Method for processing an algae medium containing algae microorganisms to produce algal oil and by-products
Image reading apparatus and image forming apparatus
  Randomly Featured Patents
Flexible beverage container with transparent diagonal mid-region
Keyboard panel for an information system terminal
Method and apparatus for providing economic analysis of power generation and distribution
Alkoxylation products of OH-functional carboxylic acid derivatives and/or carboxylic acids
Method and system of preventing corrosion of conductive structures
Acousto-optical imagery system based on coherent holographic detection in real time
Lockable drumbolt for an open head drum
Data reproducing apparatus, content management method, program, and storage medium
Lens driving apparatus, lens guiding mechanism, and optical instrument