Laser Tek Services 503A Cyan Toner Refill Kit

Compatible cyan toner refill kit

The Laser Tek Services 503A cyan toner refill kit is an aftermarket consumable designed to replace the original HP Q7581A cartridge. It is supplied new and intended for users who want to refill their existing cartridge rather than purchase a brand-new unit. The kit supports the cyan colour channel for colour laser printing.

For HP Color LaserJet 3800 and CP3505 series owners

This refill kit suits owners of HP Color LaserJet 3800, 3800dn, 3800dtn, 3800n and CP3505dn, CP3505n, CP3505x printers who are comfortable refilling their own cyan cartridge. It is not for buyers who need a ready-to-install cartridge, who require magenta, yellow or black toner, or who prefer an OEM-sealed unit with a guaranteed page yield.

Check cartridge model and refill readiness

Before ordering, confirm that the empty cartridge you hold is the HP Q7581A cyan cartridge used in the listed printers. Ensure the cartridge is physically undamaged and has not already been refilled three times, as the supplier notes a limit of three reuse cycles. Verify you have the tools and workspace needed for a clean refill process.