To provide a development rack unit and a development processing apparatus in which cleaning work of a development rack can be carried out by one worker without a burden even when a development conveying passage is extended.

The development rack unit 20 comprises two vertically halved components that are a lower unit 22 and an upper unit 21, and is installed in a main body of the development processing apparatus. The lower unit is in a suspended structure from base panels 18, 19 of the main body of the development processing apparatus, while the upper unit is loaded relatively above the lower unit by engaging the upper unit with the lower unit at each two sites A1, A2, C1, C2 separated in the vertical direction of a front panel and a back panel of the lower unit.

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