| 摘要 |
A mark position detecting apparatus including a pattern signal generating circuit, a presettable counter, a detector circuit, a first register, a memory device, a second register, a divider and a control signal generating circuit. The pattern signal generating circuit produces a pattern signal corresponding to a pattern region of a document to be delivered. Based on the pattern signal, the presettable counter counts clock pulses corresponding to the distance between first and second reference marks. The detector circuit detects a mark signal contained in the pattern signal corresponding to the mark and the first register stores the count data of the presettable counter. The memory device stores the number of mark columns in the pattern region and is coupled to the second register. The divider is connected to the first and second registers so as to divide the count data of the first register by that of the second register and produces data which shows the position of the column containing the mark.
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