This field indicates whether compression is skipped when printing an order line with the item.
For the pre-receipt, if there is a check mark in this field, the transaction lines containing the item will not be compressed on the slip. If this field does not contain a check mark, then the transaction lines containing the item will be compressed on the slip, if possible (transaction lines for an item need to meet certain criteria to be compressed).
For the final receipt, if there is a check mark in this field, the transaction lines containing the item that have not been compressed during posting will not be compressed either on the slip. If this field does not contain a check mark, the transaction lines containing the item will be compressed on the slip during printing, if they meet the compression criteria.
Note: For the final receipt, the transaction has been posted and has gone through compression of the item lines. If lines with an item have been compressed during that process, they cannot be decompressed for the receipt printing. They will appear compressed on the receipt also.