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Copier Skip Cycle Control

IP.com Disclosure Number: IPCOM000059777D
Original Publication Date: 1986-Jan-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Alimpich, C: AUTHOR [+4]

Abstract

When, during the making of copies, the control logic of the copier determines that a photoconductor latent electrostatic image will not be available for toning as that panel of the photoconductor passes through the copier's developing station, a skip cycle is executed. By definition, a skip cycle is a mode of operation where (1) no paper is fed to the copier's transfer station, (2) the photoconductor panel is not charged, (3) the interimage erase lamp is energized to thereby ensure that the photoconductor panel is discharged prior to the panel passing through the developer station, and (3) the hot roll fuser nip is opened, i.e., the hot roll and the backup roll are not in physical contact.

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Copier Skip Cycle Control

When, during the making of copies, the control logic of the copier determines that a photoconductor latent electrostatic image will not be available for toning as that panel of the photoconductor passes through the copier's developing station, a skip cycle is executed. By definition, a skip cycle is a mode of operation where
(1) no paper is fed to the copier's transfer station, (2) the photoconductor panel is not charged, (3) the interimage erase lamp is energized to thereby ensure that the photoconductor panel is discharged prior to the panel passing through the developer station, and (3) the hot roll fuser nip is opened, i.e., the hot roll and the backup roll are not in physical contact. One condition that must be satisfied in order for an electrostatic image to be available is that the copier's document feed must, at the end of making the required number of copies of original document N, exit document N and replace it with document N+1, and this action must be accomplished as the photoconductor panels move at constant speed through the various copier process stations. In order to accomplish this function, the document feeder stages or moves document N+1 from the stack of documents to an entry station where it is ready to be fed only a short distance to the copier's document platen or glass. If it is detected that document N+1 has not arrived at this entry station in time to be moved to the document glass, a skip cycle of the copier is...