| 摘要 |
A letter processing apparatus has a first transporting passage, a first detection unit, a second transporting passage, a second detection unit, a third transporting passage, and a sorting control unit. The first detection unit detects the letter transported in the first transporting passage. The second detection unit detects the letter transported in the second transporting passage. The third transporting passage causes the letter to pass. The sorting control unit directs a first letter to the first transporting passage and directs a second letter transported after the first letter to the second transporting passage. On the basis of the inter-letter distance between the two letters being transported, the transporting speed of each letter, and the preparation time from end time for the first detection to the start time of the second detection, a third letter is sorted to the first transporting passages, the second transporting passages or the third transporting passage.
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