Toshiba 2550C Toner delivery problem

[Doug James]

This machine has a constant problem where the "flaps" that block the toner flow into the developer (on all colors) when changing the toner gets stuck and incorrectly say's that machine needs toner. I modified the "flaps" lol to work but it is a constant problem still for the customer (and me) Is there there a fix for this that is feasible... I am having trouble getting a parts manual for this machine but it appears that I need a fairly large assembly to fix this. Any help would be so appreciated....

[blackcat4866]

This is news to me. Are these flaps on the developing units themselves, the vertical tubes, or the toner cartridge? Pictures? =^..^=