i removed the tx unit and all the drums. cheated the front door, turned on the cyan pump in output mode and nothing came out.i turned on the magenta pump and a load of toner came gushing out, same wit all the others apart from cyan. i changed the cyan toner pump brand new, nozzle assembley and the toner pipe which didnt make a difference. after doing numerous forced toner supply it still fails to load toner. i can see the toner is not actually gettiing to the other side of the pipe where the pump is but the toner is leaving the bottle.is there any chance it can be a faulty pump. machine is always trying to load cyan toner. i have tried different cartridges and still the same. the dev unit is new. new drum unit. VT display for cyan is 2.44vVTREF display is 1.80v as a temporary fix i turned off the toner end detection in sp3045. 3 days later the quality of the cyan was very good on print outs, eventhough the machine is heavily used.i dont understand whats going on. why is it not loading toner when i should do
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