Upper Seal for Inhibiting Doctor Blade Toner Leakage

A seal assembly for inhibiting toner leakage from a toner cartridge, comprising:

• a j-seal positioned to be received by a developer housing;
• said j-seal having an upper seat portion for a doctor blade seal and a leg for slidably sealing a developer roll;
• said upper seat portion having an upper seat inner seal wall and an upper seat outer seal wall spaced apart a preselected distance and defining a gap therebetween;
• a doctor blade bracket assembly having a doctor blade seal disposed adjacent said j-seal and said upper seat portion;
• and
• said doctor blade seal having a tongue disposed within said gap defined between said upper seat inner and outer seal walls for sealably engaging said doctor blade bracket assembly.

A seal assembly for inhibiting toner leak in a toner cartridge, comprising:

• a j-seal having a lower j-shaped portion for sliding sealing a roll and an upper seat portion;
• said upper seat portion having a first upper seat seal, a second upper seat seal and a gap defined between said first and second upper seat seals;
• a doctor blade seal having a tongue disposed at an end of said doctor blade seal, said tongue positioned between said first and second upper seat seals and interlocking said j-seal and said doctor blade seal;
• said doctor blade seal sealing along three edges of said j-seal;
• a doctor blade assembly disposed on said doctor blade seal so that said doctor blade assembly engages said first upper seat seal, said second upper seat seal, said upper seat portion of said j-seal and said doctor blade seal.

A seal assembly for preventing toner leakage from a toner cartridge, comprising:

• a first j-seal having a first upper seat portion;
• a second j-seal having a second upper seat portion;
• a doctor blade seal extending between said first j-seal and said second j-seal with ends of said doctor blade seal disposed within said first upper seat portion and said second upper seat portion;
• each of said first and second upper seat portions having a upper seat inner seal wall and an upper seat outer seal wall with a gap defined between each of said upper seat inner and outer seal walls;
• and
• said doctor blade seal having a corresponding tongue disposed within each of said gaps for interlocking said first and second j-seals with said doctor blade seal and said tongues sealing corners defined by a doctor blade and a doctor blade bracket in said toner cartridge.