Mpc4500 won’t add black toner

[fshead]

i am done here

[Gift]

dry means there is no toner in pump making It to everyone unit
all Ricoh parts
4.57 was vt reading on old pcdu



QUOTE=fshead;1638785]trying to follow this but so confusing.
what does dry mean?
the hose,the developer unit?

and is the 4.57 the vt reading??
if new unit was installed"PCDU" and was OEM the machine should not want/need toner.
Are you using ricoh parts or chinese crap?
same wth pump?

[/QUOTE]

Does the machine achtually try and add toner if you re-insert the toner bottle? I think there must occure a specific message on the display. Bottle might be flagged as empty so the MFP refuses to start adding toner. In this case the engine data reset will indeed do the trick and unlock the bottle again. I can also recall several cases where it did the trick like Oze did. You can perform nv ram backup/restore via sd card so trying this won't cause you any trouble.