Abstract: An electronic printing method which comprises subjecting a radiation sensitive silver halide emulsion layer of a recording element to actinic radiation of at least 10.sup.-4 ergs/cm.sup.2 for up to 100 microseconds duration in a pixel-by-pixel mode is disclosed. The radiation sensitive silver halide emulsion layer contains a silver halide grain population comprising at least 50 mole percent chloride, based on silver, forming the grain population projected area. At least 50 percent of the grain population projected area is accounted for by tabular grains that are bounded by {100} major faces having adjacent edge ratios of less than 10, each having an aspect ratio of at least 2.

Abstract: A photographic contact printing system comprises a data base in which certain exposure parameters (e.g., spectral response, sensitivity, dot-growth factor, nominal exposure value and overlay factor) of a variety of different photosensitive recording elements are stored. Upon selection of any one of such recording elements by a printer operator, a microprocessor automatically controls an exposure source (e.g. an electrically energizable lamp) to provide a pre-programmed exposure of the selected recording element. During exposure of the recording element, a logic and control unit receives a time-varying signal representing the instantaneous spectral radiance of the exposure source. The LCU integrates the exposure produced by the source until the integrated exposure matches a nominal (or an adjusted nominal) value, at which time the exposure is terminated.