IMPROVED SERVICE ACCESS FOR A SCANNER

摘要

A scanner (125, Fig. 3) having a serviceable circuit board assembly (275) with a stair - stepping configuration (see Fig.3). The scanner has a card cage (260) for mounting circuit boards in the rear (210, Fig 2) of the scanner. The card cage has an access opening (270, Fig. 2). A first circuit board and a second circuit board (275) are mounted inside the card cage (260). The test points (Fig. 5) and light emitting diodes (290) are positioned within the viewable portion of the second circuit board (see Figs. 3 and 6).