No review yet. Write Review

Please contact us for a quote.


Consistently outstanding image quality. Reliability of the long-lasting system. Superior sustainability. Innovative stabilized printing system. Earn free supplies with Lexmark Rewards.

Lexmark Return Program Cartridges
Lexmark Return Program cartridges are proprietary print cartridges sold at a discount in exchange for a customer's commitment to the license requirement that cartridges be used one time only and returned only to Lexmark for reprocessing or recycling. These proprietary cartridges are licensed for single use only and will stop working after a specified amount of ink or toner is used. Ink or toner may remain in the cartridge when it needs to be replaced. Also, replacement cartridges are available that are sold without these requirements.

Better together
Genuine Lexmark supplies are designed to work best with Lexmark printers, enabling excellent print quality from first to last page.

Unison ™ toner
Essential to the performance of the Lexmark printing system, the unique formulation of Unison ™ toner provides consistently outstanding image quality, ensures long-lasting printing system reliability, and promotes superior sustainability in an innovative stabilized printing system.

Lexmark Rewards
Save up to 20% on supplies and protect the environment with Lexmark Rewards. You'll get free high-yield toner cartridges and imaging kits simply for using genuine Lexmark toner and returning the empty cartridges to Lexmark for recycling.

High performance
Maximize your savings and enjoy excellent quality with Genuine Lexmark cartridges. Compared to standard-yield cartridges, high-yield cartridges offer a lower cost per page and a higher number of printed pages. Ideal for high volume printing.

Lexmark Cartridge Collection Program
Caring for the environment has never been so easy. Recycle all your used Lexmark supplies and let us take care of the details. It's easy, smart, and always free.

LEXMARK One (Black,Cyan,Magenta,Yellow) extra high yield return program toner cartridges are compatible with: 
Lexmark CS421dn
Lexmark CS521dn
Lexmark CS622de
Lexmark CX421adn
Lexmark CX522ade
Lexmark CX622ade
Lexmark CX625ade
Lexmark CX625adhe




General specifications

Part no. 78C4X-K0-C0-M0-Y0
Printing Technology
  • color laser
Yield Value
  • 8500
Lexmark Cartridge Collection Program
  • Yes
Declared Average Continuous Black Cartridge Yield, single sided printing
  • Up to 8,500 standard pages in accordance with ISO / IEC 19798.
Replacement cartridges:
  • The cartridges are designed for use in a specific geographic region. Visit www.lexmark.com/regions for more details.
Size with packing (height x width x depth in mm)
  • 101 x 141 x 102 mm
Weight with packaging (kg)
  • 0.36 kg

Electrical system and operation

  • 44103103
Harmonized Tariff Code
  • 8443.99.2050
Country of origin
  • China (PRC), Made in EU, Mexico