Patent ID: 7530937

Claim:
A method for evaluating the processing accuracy of an envelope machine capable of producing folded envelopes from sheets of envelope stock, the method comprising: a) adjusting the envelope machine to prepare for producing envelopes of a known size and known processing requirements, b) processing at least one evaluation guide sheet with the envelope machine to create an envelope, the evaluation guide sheet being the same size as the envelope stock and having at least one or more line groups thereon, each line group comprising a first line corresponding to the desired location of an envelope fold and one or more additional lines parallel to the first line, c) evaluating the envelope produced from the evaluation guide sheet by at least visually comparing the location of one or more actual fold performed by the machine relative to the desired fold location indicated by the one or more line groups, and d) if the evaluation indicates that the envelope processing is not satisfactory, adjusting the machine as appropriate to adjust the machine performance.