Laser Tek Services 503A Magenta Toner Refill Kit for HP Q7583A

What this kit does

This Laser Tek Services 503A magenta toner refill kit is designed for owners of HP Color LaserJet 3800 and CP3505 series printers who want to replenish their existing cartridges. It provides the magenta powder needed to continue printing colour documents without replacing the entire cartridge assembly.

Compatibility check

The single specification that determines fit is the OEM reference Q7583A; this kit is formulated to match that exact cartridge code used across the 3800, 3800dn, 3800dtn, 3800n, CP3505dn, CP3505n and CP3505x models. Printers using a different OEM number will not accept this refill.

Heat, noise and power

Refilling a toner cartridge is a manual bench operation that draws no electricity and produces no acoustic output during the fill process. Once the refilled cartridge is reinstalled, the printer’s own thermal and power profile remains unchanged because the kit alters only the toner supply, not the hardware. Buyers who need a complete new cartridge rather than a refill should look elsewhere.