Spare print head, 8 dots/mm (203 dpi), fits for: SLP-DL410
Spare print head, 12 dots/mm (300 dpi), fits for: SLP-DL413
Spare print head, 8 dots/mm (203 dpi), fits for: SLP-DX220
Spare print head, 12 dots/mm (300 dpi), fits for: SLP-DX223
Spare print head, 8 dots/mm (203 dpi), fits for: SLP-DX420
Spare print head, 12 dots/mm (300 dpi), fits for: SLP-DX423