Fold Mirror Mounting
Original Publication Date: 1984-Dec-01
Included in the Prior Art Database: 2005-Feb-05
In a laser printhead, especially one which discharges the background, it is critical that the light reflected from the fold mirror onto the photoconductor surface remain accurately in one place scan after scan on the drum surface. If any movement in the beam occurs, a very objectionable nonuniform discharge of the background results. This appears as a print quality defect which looks like vertical stripes in the background regions of a print. A fold mirror mounting that does not allow the fold mirror to rotate in response to vibrational input from the drive system and spindle of a laser printhead is shown in the figure. The system consists of a casting 15 which supports a front surface mirror 16, and clamps 11 and 12 which secure the casting to a laser printhead 17.