PCR's

Primary Charge Rollers - PCRThe Primary Charge Roller (PCR) is a rubber roller located inside the toner cartridge. The PCR has two functions:The first is to place a primary charge on the surface of the drum so that the laser from the printer can write to it. The second is to help erase any residual charges left on the drum surface after printing.It is recommended to replace PCR for better print quality.