black dots on the opc drum

[cleardata]

hi.
i have aficio 1045 drums and even if it hasn't reach its copy life yet ex. 100k, i see black dots on the drum already and can be seen on the copy.
may i know what causes the black dots on the drum and how it can be prevented?
thank you.

[coolbeer]

Re: black dots on the opc drum

Hi, check on the life of the developer & charge roller, also original or compatible toner.

[vargue]

Re:answer

look drum unit is very sensitive unit need carefully handling and dots in drum assume many hypotheses pick off pawl in drum if it's broken it will make dots and developer make dot's if it's not good look if thes dots corrosive toner it will remove if it's dot in drum it's impossible to remove also i faced also this thread roll magnetic if developer is little amount may cause paper full of dots

[cleardata]

Re: black dots on the opc drum

the black dots on the opc drum is not cause by the pick off pawl and it can't be removed even if i use a scratch remover on it.
it looks like the small dots are underneath the coating of the drum.