In-line self spacing optical sensor assembly for a printer

Details In-line self spacing optical sensor assembly for a printer In-line self spacing optical sensor assembly for a printer

2011-01-11

2011-01-11

Toatley, Gregory J (Department: 2877)

Optics: measuring and testing

Of light reflection

C356S448000

Reexamination Certificate

active

07869047

ABSTRACT:
An in-line optical sensor assembly that measures optical reflection density on a printed sheet horizontally conveyed and supported by a paper transport section of a printer is provided. The sensor assembly includes a densitometer having frame provided with a pair of tapered blades that engage the moving printed sheet, a light source disposed on said frame that illuminates a portion of said printed sheet at a continuous intensity, and a photo-detector mounted on the frame and positioned to receive light from the light source that is reflected off said printed sheet. The optical sensor assembly also includes a mounting that floatably mounts the densitometer in a position over the printed sheet. The mounting can be formed from an opening in a cover plate of the paper transport section that slidably receives the densitometer such that the pair of tapered blades continuously engages the moving sheet in ski-like fashion due to the weight of the densitometer. The floating mounting arrangement maintains a constant, predetermined distance between the photo-detector of the densitometer and the illuminated portion of the moving printed sheet regardless of vertical movement of the printed sheet within said paper transport section.

REFERENCES:
patent: 6464414 (2002-10-01), Washnock
patent: 03 009662 (1991-01-01), None
patent: 06 086010 (1994-03-01), None
patent: 06 273602 (1994-09-01), None

Affiliated with

Also associated with

Rating

In-line self spacing optical sensor assembly for a printer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with In-line self spacing optical sensor assembly for a printer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In-line self spacing optical sensor assembly for a printer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2674260