I have a client that has a C454 color copier, they first called me about the a code that appeared. 255x pertaining to the developing unit. I replaced it from a working C454 that I had. Now the code was gone, but a new issue occurred. Replenish magenta toner, I popped a brand new canister in there and same thing. I figure maybe some sensor to do with the toner hopper. I removed it pulled it apart completely and cleaned it like brand new. Placed it back in the copier samething. Frustrated at this point I removed a working hopper unit from one of my copiers cleaned it and installed it into this clients machine. Hard reset and power back on. The machine comes up without a hitch. I say now maybe the hopper unit was faulty and caused the flow of toner to the dv to be interrupted. 1 month later I’m called back. Replenish toner. maagenta toner. The client stated that he ran his previous magenta toner right down to it was finish and then replenish toner popped up. New canister installed same thing. Hard rest same thing. I came removed the hopper unit cleaned it, renosntalled it. No difference. I removed the magenta dv it seemed low so I topped it up with some from a c452 Magenta unit. Poured enough till the level seemed okay when roatating popped it back in. Hard reset. Samething. I’m lost at this point. The only thing I’m thinking is, the toner isn’t OEM so either it not keeping the dv unit topped up causing it hard to rotate, or it clogging the toner hopper maybe causing the motor to operate abnormal or fail disrupting the flow of toner. ??? Please help or atleast a push in some sort of direction.
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