top of page

HP Printer Parts Technical Support Blog

Scroll down to view articles and results.

Help support Metrofuser so we can continue helping you.

HP M607 M608 M609 E60055 E60065 E60075 Printer Toner Cartridge Leaking and Printing Light Issue

Solving The HP M607 M608 M609 E60055 E60065 E60075 Printing Light Issue and Printer Toner Cartridge Leaking.

Printer Error or Problem

Toner leaking on edge of OPC and into tray producing pages with light print. Some cartridges produced a light vertical streak in the first 100 pages printed.


The problem is the developer end seal not being properly installed during the manufacturing process.

  • Locate the printer toner cartridge lot code. This can be found on the body of the cartridge or box.

  • The first four characters of the lot code correspond to the year, month and day.

  • If the first four characters of the lot code are 7C28 (20170328) or before and the customer is experiencing toner leaking and light print, the cartridge should be replaced.


To prevent damage to the toner cartridge, do not expose it to light for more than a few minutes. Cover the green imaging drum if the toner cartridge must be removed from the printer for an extended period of time.






This procedure works with the following units;

  • HP LaserJet Enterprise Flow MFP M631h

  • HP LaserJet Enterprise Flow MFP M632z

  • HP LaserJet Enterprise Flow MFP M633z

  • HP LaserJet Enterprise M607dn

  • HP LaserJet Enterprise M607n

  • HP LaserJet Enterprise M608dn

  • HP LaserJet Enterprise M608n

  • HP LaserJet Enterprise M608x

  • HP LaserJet Enterprise M609dn

  • HP LaserJet Enterprise M609x

  • HP LaserJet Enterprise MFP M631dn

  • HP LaserJet Enterprise MFP M631z

  • HP LaserJet Enterprise MFP M632fht

  • HP LaserJet Enterprise MFP M632h

  • HP LaserJet Enterprise MFP M633fh

  • HP LaserJet Enterprise MFP E60055

  • HP LaserJet Enterprise MFP E60065

  • HP LaserJet Enterprise MFP E60075

Other Helpful Resources

Metrofuser is a leading global innovator, manufacturer of printer parts, equipment, diagnostics, repair information and systems solutions for professional users performing critical tasks. Products and services include hp printer parts, printers and printer repair training. Parts include hp printer parts such as printer fusers, printer maintenance kits and other hp printer replacement parts. The company's, customers include office equipment dealerships, online retailers, repair centers and MPS service providers nationwide. Metrofuser has been named to Inc. Magazine’s fastest growing companies five consecutive years.  Visit us at


bottom of page