Abstract: A self-contained disposable package including a container of diazo copy developer liquid and an ammonia vapor absorber canister is disclosed for use with diazo type copy machines. The container of developer liquid and an absorber canister are adapted to be readily hooked into the supply and exhaust lines of the copy machine developer chamber and to the exhaust line of a machine degassing chamber. The absorber canister includes a quantity of ammonia vapor absorber material such as a mixture of excelsior and activated carbon, both treated with phosphoric acid, into which is extended a flow tube adapted to be connected to the degassing exhaust chamber with the exhaust flow directed to emanate from the lower region of the canister an flow upwardly through the absorber material and then out through openings in a top cap. The construction of the canister minimizes flow channelization through the absorber material.

Abstract: A self-contained disposable package including a container of diazo copy developer liquid and an ammonia vapor absorber canister is disclosed for use with diazo type copy machines. The container of developer liquid and an absorber canister are adapted to be readily hooked into the supply and exhaust lines of the copy machine developer chamber and to the exhaust line of a machine degassing chamber. The absorber canister includes a quantity of ammonia vapor absorber material such as a mixture of excelsior and activated carbon, both treated with phosphoric acid, into which is extended a flow tube adapted to be connected to the degassing exhaust chamber with the exhaust flow directed to emanate from the lower region of the canister and flow upwardly through the absorber material and thence out through openings in a top cap. The quantity of developer and absorber is correlated such that the entire package may be replaced as soon as the developer liquid becomes exhausted.

Abstract: A diazo copy machine of the type utilizing ammonia vapors to develop exposed copy material and which utilizes a suction chamber for collecting and drawing off the ammonia vapors escaping from the development chamber and given off by the developed copy material. The disclosed machine features an integrated ammonia vapor absorber canister which is mounted within the copier housing or secured by means of brackets to the rear of the machine housing and through which is directed the collected ammonia vapors by means of a plug-in tube insertable in one end of the canister. This directs the ammonia vapor containing discharge from the suction chamber through the canister. In one version, the canister contains a composite of granular and fibrous absorbent materials to insure complete absorption of the ammonia vapors and to avoid channelization of the materials.