Printing medium detecting device, image forming apparatus...

Details Printing medium detecting device, image forming apparatus... Printing medium detecting device, image forming apparatus...

2011-04-05

2011-04-05

Toatley, Gregory J (Department: 2877)

Optics: measuring and testing

Photometers

Photoelectric

C356S624000, C356S213000, C356S448000, C399S016000, C399S030000

Reexamination Certificate

active

07920256

ABSTRACT:
A printing medium detecting device capable of accurately detecting an amount of printing media in a paper cassette, an image forming apparatus including the printing medium detecting device, and a method to detect a printing medium. The printing medium detecting device of the image forming apparatus includes a light source to emit a light beam to one side of a stack of printing media housed in a paper cassette, a scanning unit to scan the light beam reflected from the stack and generate a signal based on the light beam, and a computing unit to compute information related to the stack based on the signal, wherein the information includes a number of printing media sheets in the stack.

REFERENCES:
patent: 4912317 (1990-03-01), Mohan et al.
patent: 6824128 (2004-11-01), Nagata et al.
patent: 7374163 (2008-05-01), Cook et al.

Affiliated with

Also associated with

Rating

Printing medium detecting device, image forming apparatus... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printing medium detecting device, image forming apparatus..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printing medium detecting device, image forming apparatus... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2739634