12. A mail processing system, comprising: a platen having an aperture; and an imager configured to scan a document as the document is transported past the aperture; wherein the mail processing system is configured to scan the document to produce a document image; analyze the document image, wherein analyzing the document image includes one or more of determining if there is a dark obstruction in the document image and determining if there is a bright obstruction in the document image; based on the analysis, determine that there is a condition of the mail processing system that requires maintenance and that produced the dark obstruction or the bright obstruction; and notify at least one user of the condition of the mail processing system that requires maintenance and stop scanning additional documents so that the user can correct the condition of the mail processing system that requires maintenance.
12. A mail processing system, comprising: a platen having an aperture; and an imager configured to scan a document as the document is transported past the aperture; wherein the mail processing system is configured to scan the document to produce a document image; analyze the document image, wherein analyzing the document image includes one or more of determining if there is a dark obstruction in the document image and determining if there is a bright obstruction in the document image; based on the analysis, determine that there is a condition of the mail processing system that requires maintenance and that produced the dark obstruction or the bright obstruction; and notify at least one user of the condition of the mail processing system that requires maintenance and stop scanning additional documents so that the user can correct the condition of the mail processing system that requires maintenance. 14. The mail processing system of claim 12 , wherein analyzing the document image includes determining if there is a blurred distortion in the document image.