| 摘要 |
This invention provides an image-forming machine with a pulse densitometer that avoids the formation of artifacts on electrophotographic films. The ima ge- forming machine (100) may have a charger (118), an exposure machine (120), a toning station (125), a transfer charger (130), a fusing station (140), and a densitometer (160) positioned next to a photoconductor (105). The densitomet er may have an emitter (165), a collector (170), and a pulse apparatus (180). T he densitometer provides one or more pulses to measure the toner and photoconductor densities. The pulsed emissions are essentially below the exposure threshold of electrophotographic films, especially those sensitive to the infrared spectral region.
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