These are part of inkjet printers, which prints ink onto paper. They are fixed heads, which are built into the printer, or disposable heads, which are built into the disposable ink carttridges.
Datamax O'Neil PHD20-2177-01 print head Thermal transfer

Datamax O'Neil PHD20-2177-01 print head Thermal transfer

Datamax O'Neil
£384.99
Zebra P1112640-219 print head

Zebra P1112640-219 print head

Zebra
£246.99
Zebra P1083347-005 print head Thermal transfer

Zebra P1083347-005 print head Thermal transfer

Zebra
£469.99
Zebra Printhead 300 dpi for ZT610

Zebra Printhead 300 dpi for ZT610

Zebra
£591.99
Zebra P1058930-011 print head Thermal transfer

Zebra P1058930-011 print head Thermal transfer

Zebra
£1,370.99
Zebra ZT200 print head Direct thermal

Zebra ZT200 print head Direct thermal

Zebra
£473.99
Zebra P1004239 print head Direct thermal

Zebra P1004239 print head Direct thermal

Zebra
£856.99
Datamax O'Neil PHD20-2279-01 print head Direct thermal

Datamax O'Neil PHD20-2279-01 print head Direct thermal

Datamax O'Neil
£624.99
Datamax O'Neil PHD20-2267-01 print head Thermal transfer

Datamax O'Neil PHD20-2267-01 print head Thermal transfer

Datamax O'Neil
£142.99
Datamax O'Neil PHD20-2245-01 print head Thermal transfer

Datamax O'Neil PHD20-2245-01 print head Thermal transfer

Datamax O'Neil
£825.99
Datamax O'Neil PHD20-2208-01 print head Thermal transfer

Datamax O'Neil PHD20-2208-01 print head Thermal transfer

Datamax O'Neil
£747.99
Datamax O'Neil PHD20-2164-01 print head Thermal transfer

Datamax O'Neil PHD20-2164-01 print head Thermal transfer

Datamax O'Neil
£952.99