HP LaserJet 4 Service Manual - Page 80

Installing The Optional Lower Cassette Note Please see also the Service Notes section for proper use and adjustment of the lower cassette. These printers have an optional 500-sheet Lower Cassette which is installed in the field. Follow these instructions to install the Lower Cassette. 1 Disconnect the cables from the printer. 2 Unpack the 500-sheet Lower Cassette Assembly. 3 Place the Lower Cassette base (without its paper tray) in the selected location. 4 Place the printer on top of the Lower Cassette Assembly, as shown in Figure 3-12. Note Install the printer onto the Lower Cassette Base so that the alignment pins on the cassette base mate with the holes in the bottom of the printer. Figure 3-12 Installing the Printer on the Lower Cassette 5 Reconnect the printer cables and run a self test to ensure the lower cassette is recognized by the printer. 3-44 Configuration