| 摘要 |
The developer-printer assembly comprises a housing having a plurality of tanks formed therewithin for confining developing fluid, fixing fluid, wash water and rinse water, and a plurality of conveying roller assemblies and guides for directing and conveying photographic papers, i.e., photosensitive papers or negatives, which are to be developed and printed, between the tanks, through the fluids and waters. The conveying roller unit, a plurality of which are employed in the developer-printer assembly, has a pair of rollers spaced apart with an intermediate roller interposed therebetween, and bands replaceably looped about the pair of rollers and atop the intermediate roller, for constraining the photographic papers firmly to the intermediate roller. The unit further has a trough for positively directing papers to the intermediate and pair of rollers.
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