3 ms·
Probably refers to carbon paper.
by telotortium 4y ago
Probably refers to carbon paper.
- Eleison23 4y agohttps://en.wikipedia.org/wiki/Photocopier https://en.wikipedia.org/wiki/Photocopier There was carbon paper, other types of treatment, and non-paper objects such as plates; think about the intersection with photography. The "xero" prefix means "dry" which would win out over "wet" chemical processes.