I saw this machine the other day and it goes through
the power up and almost printed a full sheet.
The print felt grainy and a small amount of developer mix
is showing in the paper path just below the dv unit.
I have never worked on this model and I do have the book.
But I know I will still need some pointers on how not to
screw it up.
I found some info on xeroxforum.org that also seemed to apply.
I will visit this account again tomorrow.
The 510 does have a number of idiosyncrasies, particularly with regard to developer dumping. You will want to clean out the D/T and BTR channels, which can fill up with developer. As mentioned above, the erase LED assembly from Xerox is a common culprit for failure. Sections of LED's will go out, causing excess charge potential in that are of the drum. This in turn causes developer dumping in that area. So if you see a concentration of developer about 2" wide, you most likely have a bad LED assembly. We have re-engineered the LED assembly to not fail, and also to provide additional light on the ends of the drum This in turn can prevent developer bead carry over on the outer edges.
Sounds like you have worked on these before. Is there an easy way to check the lamp?
The developer scattering I see on this unit is about 2" or so and it is in the middle.
Any chance I could get one those re-engineered lamps if needed?
You can test the erase LED while still installed in the machine. However, I recommend to first remove the Erase LED assembly. Then reassemble the drum in the machine. Next, cheat the top cover interlock switch, and place the machine into diagnostics, then run 09-66. This turns the eraser LED on. I usually hold the LED assembly and gently shake it as vibration will often uncover the weaknesses in the assembly. If a section turns off, flashes, or does not light at all, you know what to do. Otherwise, I leave the LED on until the timer function turns the assembly off.
I suspect in your case that you have a bad LED assembly from how you describe a concentration of developer in the center. If you would like to purchase an LED assembly, drop me a note email@example.com
Thank you for expanding on the procedure, As I have never seen this model
and have no clue as to where to start, this will help. Should I find the lamp
is bad I will order one from you. What is the price of the lamp assembly?
As mentioned I am not familar with this model, I need to read the book
for the program codes and the tear down procedure. I have to pay
for my own mistakes. Having the book helps keep that cost down.
And I learn more about what I am doing.
Thank for the info
Last edited by Desert Rat; 06-05-2012 at 07:03 PM.
Reason: left out sentence