Logistics data
Harmonized System (HS) code	84439990
Performance
Print technology	Inkjet
Printing colours	Black

The HP Q7456A is a inkjet print head in black, specifically developed for use in large-format printing systems of the HP Black 4500 Pigment Bulk Ink series. This print head serves as a central component for image transfer and enables the production of high-resolution print results on porous substrates. The use of pigment ink ensures high color brilliance and longevity of prints, especially in outdoor applications or under high stress. The printing technology is based on inkjet methods, where fine ink droplets are precisely applied to the print medium to achieve sharp and detailed output.

Applications
The print head is primarily designed for professional large-format printing systems used in the advertising and graphics industry, architecture and engineering, as well as in production printing. The use of pigment ink makes it particularly suitable for applications requiring high resistance to light, moisture, and mechanical stress. Compatibility with the HP Black 4500 Pigment Bulk Ink system enables continuous, high printing performance without frequent interruptions for refilling.

Features and Equipment in Detail
The HP Q7456A is a black print head, specifically developed for use with the HP Black 4500 Pigment Bulk Ink system. It is part of a modular system that allows print heads and ink containers to be replaced independently, simplifying maintenance and operation. The ink is water-based, eliminating the need for aggressive cleaning agents, rinsing fluids, or special ventilation systems. Print heads can be exchanged during operation (hot swap), increasing productivity and minimizing downtime.

Technology Explained Simply
The inkjet technology works by precisely ejecting ink droplets from micro nozzles onto the print medium. The HP Q7456A uses a special nozzle arrangement optimized for high printing speeds and even color distribution. The use of pigment ink ensures that the print color does not easily bleed and offers high resistance to environmental influences. The ink is supplied in a 350 ml bulk ink system, enabling continuous supply to the print head and reducing the need for frequent refills.

Compatibility and Accessories
The print head is specifically developed for use in the HP Black 4500 Pigment Bulk Ink system. It is part of a modular system that allows various configurations of print heads and ink containers to achieve different print widths and speeds. Compatibility is limited to HP systems that support the 4500 pigment bulk ink system.

Installation and Mounting
Mounting is performed during maintenance or replacement of a defective print head in the HP Black 4500 system. Installation involves removing the old print head and inserting the new one, with the system control recognizing the replacement and automatically calibrating the print heads. The hot-swap capability allows replacement during operation, minimizing production interruptions.

Advantages in Operation
The use of the HP Q7456A provides high print quality with sharp contours and high resolution, even at high speeds. The use of pigment ink ensures high durability of prints, especially against UV light and moisture. The modular design of the system allows flexible adaptation to different production requirements. The hot-swap capability reduces operational interruptions and increases overall productivity. The water-based ink reduces the need for special safety measures and lowers operating costs for cleaning agents and exhaust systems.