Some info on using a TM-U220 Printer
I got the info from this link
https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=85
Here is my kitchen template as an example
<XCT>27,33,16
[LAYOUT]
<T>{USER NAME}
<J>Time:{TIME} | Date:{TICKET DATE}
<L>Table:{ENTITY NAME:Table}
<L>Ticket No:{TICKET NO}
<F>-
<L>{NOTE}
<F>-
{ORDERS}
[ORDERS]
<L>- {QUANTITY} {NAME}
{ORDER TAGS}
[ORDERS:Void]
<J>- {QUANTITY} {NAME}|**Void**
{ORDER TAGS}
[ORDER TAGS]
-- Format for order tags
<XCT>27,114,1
<J> * {ORDER TAG NAME}
<XCT>27,114,0
<XCT>27,33,16 = double height
<XCT>27,114,1 = Change to color 2 (in my case printing in red color)
<XCT>27,114,0 = Change to color 1 (black)
<XCT>27,69,1 = EMPHASIS ON
<XCT>27,69,0 = EMPHASIS OFF