... roller (PCR), mag roller (MR), doctor / wiper blades, empty cartridge, empty case for refill toner cartridge Primary Charge roller (PCR), ... mag roller (MR), doctor / wiper blades, empty cartridge, empty case for refill toner cartridgeWe offer all raw material ... seal, screw, toner hopper, waste bin, etc). own machine for mould developing and plastic injection. PCR for laser printer cartridge