bizhub 420 c2804 reset

February 25, 2009

Description:

Too low toner density(in developing unit) -read from ATDC  sensor 

Posible causes:

1.Defective toner supply mechanism - defective TONER CONVEYANCE GEAR   p/n 26NA 3268 0 

Solution: grease with silicone vaseline toner conv  gear and worm gear (at Motor M4) or replace toner conv gear if broken

2. tubby noise -toner sub hooper overflow -use vaccum cleaner -clean all toner inside hooper

Written by admin · Filed Under Troubleshooting 

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