CZ678A - HP Latex 831 printhead (Magenta/Yellow)

HP Latex 831 printhead Magenta/Yellow – CZ678A

The HP Latex 831 Magenta/Yellow printhead (CZ678A) is a central part of the printing carriage on HP Latex 300 and 500 series. It lays down Magenta and Yellow together — two primaries essential for reds, oranges, yellows and warm tones. With HP Thermal Inkjet high-density nozzles, it jets very small drops with micrometric precision for high saturation and crisp outlines.

Technical specifications

• OEM reference: CZ678A
• Manufacturer: HP
• Part type: HP Latex 831 thermal inkjet printhead, Magenta + Yellow (dual colour)
• Family: HP Latex 831
• Colours: Magenta + Yellow
• Technology: HP Thermal Inkjet – high-density nozzles
• Condition: New, genuine HP, sealed
• Note: Use with HP 831 Latex Magenta and Yellow ink cartridges; re-align per HP procedure after installation.
• Shipping: Shipped ready to install

Compatibility & use

• HP Latex 3xx
• HP Latex 5xx

Function

• Lays Magenta and Yellow inks onto the media
• Faithful reproduction of saturated reds, oranges and yellows
• Keeps optical density and even coverage of solids
• Contributes to colour accuracy and gamut
• Keeps sharp outlines and fine detail

Signs of wear

• “Printhead problem” or “Replace printhead” message
• Colour drift on reds, oranges and yellows
• Loss of density or uneven solids
• Banding or missing nozzles despite cleaning
• Failed Magenta/Yellow alignment or nozzle checks

Replacing this part restores the machine to proper working order.

♻️ DG Spare Parts – European specialist in spare parts for large-format printers and plotters.