Just curious -- what is wrong with laser toner? It's carbon, and doesn't fade. And petroleum is "organic", but lasts for millions of years. Edit: answered my o

Just curious -- what is wrong with laser toner? It's carbon, and doesn't fade. And petroleum is "organic", but lasts for millions of years. Edit: answered my own question. There are several kinds of toner (I had never heard of liquid toner), but some kinds are just fine: "Toners composed of stable resin materials and a stable pigment such as carbon black are capable of strong bonding to the paper surface. Copies using these toners and printed onto permanent or archival quality paper can be considered permanent and suitable for long-term storage." -- National Archives Australia