What about the laser cartridge?

Question

Iron

Canon LBP-1120 (cartridge C4092A). After rinsing the transfer roller (charge roller) with water and wiping the drum unit with a dry cloth, longitudinal "scratches" began to be printed on the right edge of the paper. What could be the cause - transfer roller or photoconductor?
a photo

Answer 1

For a long time I googled a huge table, where for a specific printer model, by the distance between artifacts, it was possible to determine the source of the problem. Now worked up only similar .

Answer 2

but scratched the photo shaft. Ah ah ah! and for the future .. it is not washed with water !!!! The maximum is wiped with a special bag. there is a layer responsible for transferring toner to paper .... microns !!