AR-208D problems

[redserv]

hello guys recently i have been to customers with this model machine that says when they make copies they get parts of the copies missing, upon inspection of the drum i see some light film of toner on the drum after warm up, its not on the entire drum its just like a part off the drum that i see the toner, it seems to me that the drum is not being charged/discharged properly after warm up, i am not sure what to think could cause it at this point,i even got another drum and tried it but, after a couple 100+ of copies it seems to come back, could this be High voltage Pwb? hopfully someone has this experience or a possible solution, godblesshave a great day.

[android790]

Check your process unit and make sure the mc is in good shape and in correctly. Check your grounds for the process unit. Check your settings in sim mode to see if in range of normal. Check your laser. How old is the developer? Do prints and copies have the same issue. Also, you could have a bad batch of drums. Sorry this is not much help, but it could be a lot of things.

[redserv]

thanks for the info pal,i give those things a shot, and get back to you guys

[blackcat4866]

Did you get a few scans for us to look at? =^..^=

[redserv]

guys the problem was some toner that was on the laser glass in the machine, however i remember cleaning this before but more toner is getting there again , i changed the developer unit upper seal already.

[redserv]

after about 2mths with this machine in the shop, customer complains about the same problem that happened before, i am stumped, changed drum unit, developer unit,high voltage unit, went back to the customer again and saw toner on the laser unit mirror had to clean it off again, any idea guys what can cause this issue?