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Technique to incrementally complete and / or reject completed forms using Optical Scanning and registration marks
English (United States)
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Technique to incrementally complete and / or reject completed forms using Optical
Scanning and registration marks
In retail environments, it is common practice to complete some forms
incrementally using the POS terminal to record certain events, such as voids or
customer refunds for later audit. When handling such forms, the operator must position
the form at the next available print location, and then use an input device (printer keys in
some implementations or terminal keyboard) to initiate the printing at the next available
position on the form.
The drawbacks of this method are quality of the completed form (the form is often
not positioned well causing inconsistent output and because of this, fields may be
overwritten or ill aligned) and physical space must usually be allocated for a side
insertion of the form in the printer (increased footprint).
The solution to the problem is to use optical scanning to identify registration
marks for field placement, and then interrogating the field itself to determine if the field
has already been used. If the field has been used, the printer should advance to the
next registration mark of this type and interrogate the associated output field. The
process continues until either an available field is found, or the form is determined to be
"full". Note that multiple output fields may be completed (using the example above; void
amount, void description) and that either multiple fields may be interrogated and/or