A gas enclosure assembly and system comprising: a gas enclosure assembly (100, 1000, 1010) having an interior containing an inert gas atmosphere, wherein the gas enclosure assembly (100, 1000, 1010) comprises: a first frame member assembly section (1240, 1260, 1280) defining a first interior volume, wherein the first frame member assembly section comprises a plurality of a frame member assembly, each frame member assembly having a plurality of a panel section; a second frame member assembly section (1230, 1270) defining a second interior volume, wherein the second frame member assembly section comprises a plurality of a frame member assembly, each frame member assembly having a plurality of a panel section; and at least one opening (1242, 1282) in a panel section common to the first frame member assembly section (1240, 1260, 1280) and the second frame member assembly section (1230, 1270), wherein the opening (1242, 1282) provides fluid communication between the first interior volume and the second interior volume, and wherein closure of the opening (1242, 1282) separates the first interior volume from fluid communication with the second interior volume; a printing system having a printhead assembly (1080, 1081) comprising at least one printhead, the printing system housed within the first interior volume; and a maintenance system (1250, 1290) for maintaining the printhead assembly (1080, 1081), said maintenance system (1250, 1290) housed within the second interior volume. a gas enclosure assembly (100, 1000, 1010) having an interior containing an inert gas atmosphere, wherein the gas enclosure assembly (100, 1000, 1010) comprises: a first frame member assembly section (1240, 1260, 1280) defining a first interior volume, wherein the first frame member assembly section comprises a plurality of a frame member assembly, each frame member assembly having a plurality of a panel section; a second frame member assembly section (1230, 1270) defining a second interior volume, wherein the second frame member assembly section comprises a plurality of a frame member assembly, each frame member assembly having a plurality of a panel section; and at least one opening (1242, 1282) in a panel section common to the first frame member assembly section (1240, 1260, 1280) and the second frame member assembly section (1230, 1270), wherein the opening (1242, 1282) provides fluid communication between the first interior volume and the second interior volume, and wherein closure of the opening (1242, 1282) separates the first interior volume from fluid communication with the second interior volume; a first frame member assembly section (1240, 1260, 1280) defining a first interior volume, wherein the first frame member assembly section comprises a plurality of a frame member assembly, each frame member assembly having a plurality of a panel section; a second frame member assembly section (1230, 1270) defining a second interior volume, wherein the second frame member assembly section comprises a plurality of a frame member assembly, each frame member assembly having a plurality of a panel section; and at least one opening (1242, 1282) in a panel section common to the first frame member assembly section (1240, 1260, 1280) and the second frame member assembly section (1230, 1270), wherein the opening (1242, 1282) provides fluid communication between the first interior volume and the second interior volume, and wherein closure of the opening (1242, 1282) separates the first interior volume from fluid communication with the second interior volume; a printing system having a printhead assembly (1080, 1081) comprising at least one printhead, the printing system housed within the first interior volume; and a maintenance system (1250, 1290) for maintaining the printhead assembly (1080, 1081), said maintenance system (1250, 1290) housed within the second interior volume.