A "null printer" is a fake printer that can be used to avoid printing unneeded tickets.

This is useful if you need to use the /wiki/spaces/IDOCFR/pages/42215592 interface, because it needs a ticket.

Ref: https://www.brull.me/e-mds/2014/10/28/create-a-windows-null-printer.html

create an Institution → Tools → Hardware Family: "No printing" of type "Printer"
manually create in windows, on each workstation, a local printer with a new local port named "nul:", driver type Generic / Text only, logical name "Null Printer" (don't share it)
create a document printer on each workstation to reference the "Null Printer"
assign it to the hardware family
create an Organization → Tools → Ticket Model for the printer family "No printing"
- add an only model variant of type "A4 ticket" (use any model)
assign this template to any product that you don't want to print (but still want a ticket in the DB)

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