The present invention relates to a novel adjuvant system that generates an efficient immune response against antigens of various origins while reducing the risk of toxic side effects attendant to the use of known adjuvants. One computer-method includes electronically harvesting information related to characteristics of at least one of the buyers and anonymizing the harvested information. Furthermore, it is preferable for the lithium metal oxide described above to include manganese and more preferable for cobalt to be included to improve the stability of the crystal structure. When congestion occurs at the switching apparatus, the low priority queue and the high priority queue can respectively perform the different ways of the congestion control, according to the input congestion mode. Print jobs that do not contain commands requesting backchannel data are purged from the point of job cancellation.