Na-ewebata Grid Ricoh Charge Corona dakọtara, ngwọta zuru oke maka mkpa mbipụta ụlọ ọrụ gị. Ezubere iji rụọ ọrụ n'enweghị nsogbuRicoh MP6503, MP7503, MP9003, MP6503SP, MP7503SP, na MP9003SPndị na-emepụta ihe, grid ụgwọ anyị na-ekwe nkwa ịrụ ọrụ pụrụ iche yana ịdị mma mbipụta.
Site na ndakọrịta ya dị elu, grid ụgwọ anyị na-eme ka ịchaji drum photoreceptor nke ọma, na-ebute mbipụta dị nkọ na nke doro anya oge ọ bụla. Ọ na-ebufe ọkụ eletrik nke ọma na elu drum, na-eme ka ntinye nke toner na-egbochi ma gbochie ntụpọ ọ bụla nwere ike ime.