An RJ11/RJ12 cash drawer is a point-of-sale drawer connected to the receipt printer through an RJ11 or RJ12 jack. It opens when the printer sends it a pulse at the software’s request.
Why it matters to a reseller
The jack looks like a network socket, and a drawer plugged into the printer’s Ethernet port will never open. It is the most common cabling mistake at commissioning. Check that connection before you leave the counter to avoid a service call for a false fault.
Related guides
Related terms
- ESC/POS
ESC/POS is the command set created by Epson that most receipt printers understand.
- Direct thermal printing
Direct thermal printing is a process that darkens heat-sensitive paper through contact with a heated head.
Hardware involved
- MG80 (Printers)