Flash flat-bed wet copier

阅读:702发布:2022-08-21

专利汇可以提供Flash flat-bed wet copier专利检索,专利查询,专利分析的服务。并且An electrostatic flat-bed wet copier in which copy moves in the exposure station while a 1:1 image of the stationary original is flashed thereon through a shutterless optical system upon the automatic energization of Xenon flash-tubes that flashilluminates the underside of such original. The copy paper web is automatically fed from a supply roll, charged, cut into sheets of selected length corresponding to that of the original, one-shot flash exposed without interruption, wet-processed, and dried at a rate of up to 40 copies per minute. The copies moving through the machine are electronically monitored at each station by the electrical system so that any trouble is automatically indicated, to show the station involved, and further operation stopped until the trouble is corrected. The pre-wet developing device not only supplies and recirculates the liquid toning solution for flow with the copy, but maintains the pre-wet solution at a selected level in the liquid solution reservoir by gravity feed, and adds concentrated toner to an inlet to the liquid recirculating pump. The system is such that only concentrate need be added to the dip-developer system because a greater amount of pre-wet solution (same solution as liquid carrier for toner) is added on per copy basis than is squeegeed off after image development (in effect toner is manufactured with this system; never have to add to dip tray). A sump receives any overflow from the toner reservoir, and feeds the liquid therein when the latter raises to a certain level, to a forced air evaporator. Any residual liquid is returned to the sump. The base of the copier cabinet consists of a liquid-proof tray for receiving any other spilled or overflow liquid. The copy fixing or drying station contains a box-like hood containing radiant-heating rods over which air is drawn from openings in the hood by an inclined vacuum-belt as well as by forced air means which carried the squeegeed copies thereon. The electrical system automatically handles any selected one of a plurality of copy lengths, corresponding to those of any original within the length range of the original platen, by virtue of individual sets of exposure platen switches corresponding to such lengths.,下面是Flash flat-bed wet copier专利的具体信息内容。

1. An improved electrostatic flat-bed copier in combination, comprising: a copy sheet exposed while moving to a one-shot flash image of a stationary original, parabolic reflectors located directly under the ends of the original platen disposed outside of the specular ray area; flash lamp means cooperating with said reflectors directed toward the underside of said platen for illuminating the original and being adapted to provide a uniformly projected image on said copy sheet; a series of cooperating switch means adapted to function in the presence of a selected paper length responsive to the leading edge of a copy sheet advancing through an exposure station for enabling such copy sheet to be produced of a preselected length provided with; trigger switch means disposed further down-stream in paper travel energized by the leading edge of such sheet to initiate said flash lamp means; a plurality of copy cut switch means for controlling the advance and severance of a sheet of selected length from a copy supply roll and associateddone-shot Xenon light switches means corresponding to a preselected number of original lengths for enabling Xenon flash-illumination to occur at a point when such preselected copy lengths are in proper exposure registration respectively with an original; and restart switch means including a re-start switch disposed downstream with respect to said cut switch means for restarting additional copy movement through said exposure station for additional copying.
1. An improved electrostatic flat-bed copier in combination, comprising: a copy sheet exposed while moving to a one-shot flash image of a stationary original, parabolic reflectors located directly under the ends of the original platen disposed outside of the specular ray area; flash lamp means cooperating with said reflectors directed toward the underside of said platen for illuminating the original and being adapted to provide a uniformly projected image on said copy sheet; a series of cooperating switch means adapted to function in the presence of a selected paper length responsive to the leading edge of a copy sheet advancing through an exposure station for enabling such copy sheet to be produced of a preselected length provided with; trigger switch means disposed further down-stream in paper travel energized by the leading edge of such sheet to initiate said flash lamp means; a plurality of copy cut switch means for controlling the advance and severance of a sheet of selected length from a copy supply roll and associateddone-shot Xenon light switches means corresponding to a preselected number of original lengths for enabling Xenon flash-illumination to occur at a point when such preselected copy lengths are in proper exposure registration respectively with an original; and restart switch means including a re-start switch disposed downstream with respect to said cut switch means for restarting additional copy movement through said exposure station for additional copying.
2. The invention as defined by claim 1 including at least one copy monitoring switch means at a copy exposure station, a stationary original illuminating station, and a developing station, in combination with a common control circuit means adapted to indicate any malfunction with such copy at or in the respective stations.
3. The invention as defined by claim 1, including power supply means for said one-shot Xenon flash-tubes comprising capacitor recharging means adapted to urge energization of the Xenon tubes each time a moving copy sheet reaches the correct exposure position when the machine is programmed for multiple copy reproduction.
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