I have a Ricoh IS420 that is leaving a black rectangle on documents. All documents scanned using the ADF are fine. But when placing a document on the glass the scanner leaves a black rectangle on the bottom corner. When the paper is moved down a little the black rectangle disappears. When the paper is moved further down, I get a square on the upper corner.
I believe it has to do with a sensor detecting the size of the document or end of document. An 8.5x12 normal sized document has a black rectangle a .5"x.25". A larger document will leave a 2.5"x.5" black rectangle. Is there a part I can replace that could fix this issue? I have already troubleshot the driver by getting a newer one. I have the service manual for this scanner, but no help in it.
Any help is appreciated!
I believe it has to do with a sensor detecting the size of the document or end of document. An 8.5x12 normal sized document has a black rectangle a .5"x.25". A larger document will leave a 2.5"x.5" black rectangle. Is there a part I can replace that could fix this issue? I have already troubleshot the driver by getting a newer one. I have the service manual for this scanner, but no help in it.
Any help is appreciated!
