Ricoh Aficio 650 faint copy

[mkopoiuy]

I need help about this faint copying again and again.
I think toner doesnt go to the developing unit.
So I changed drum and developer and have done SP 3-001-2 & 2-962 & 2-801 after change the drum and developer.
I didnt do it with SP 2-001-1
But SP 2-220 & 2-223 are changing during the copying and copies are getting very light after 500 copies.
If I do SP 2-207(add toner) three times then copies are getting a good. but getting faint soon.
Please tell me what I didnt know with this problem.
I have several copiers as same problem.

[Fearless V K]

If you look in the toner hopper opening (top part of developer unit) is it full of toner, or does it appear empty?

[mkopoiuy]

If you look in the toner hopper opening (top part of developer unit) is it full of toner, or does it appear empty?

toner is full in the hopper.
do think is that possible charge assey grid or charge wire.

[rthonpm]

What is the average volume for the machines in a month? If you run too few copies on average they will hose up on you. See if this bulletin helps you out...

[mkopoiuy]

What is the average volume for the machines in a month? If you run too few copies on average they will hose up on you. See if this bulletin helps you out...

thank you very much.
i got it.
have a nice day and god bless you!