Insertion system and insertion method

An insertion system comprising:

• an enclosure supply device including an enclosure container for containing enclosures, the enclosure supply device to transport the enclosures from the enclosure container;
• an envelope supply device including an envelope container for containing envelopes, the envelope supply device to transport the envelopes from the envelope container;
• an insertion device to insert the enclosure supplied from the enclosure supply device into the envelope supplied from the envelope supply device;
• a first input unit to input image data on the envelopes of the envelope supply device and to input identification data of the enclosure to be inserted into the envelope for a respective one of multiple insertion setting records;
• a second input unit to input identification data of the enclosure set in the enclosure container of the enclosure supply device;
• and
• a controller to determine whether the identification data of the enclosure to be inserted, input by the first input unit, matches the identification data of the enclosure set in the enclosure container, input by the second input unit, and to control supply of the envelope by the envelope supply device as well as supply of the enclosure by the enclosure supply device based on a result of the determination,
• wherein when the identification data of the enclosure to be inserted does not match the identification data of the enclosure set in the enclosure container, an output printing order is changed.