C4557-20002Roller - Pinch roller - Provides downward pressure on media as it passes by upper paper guide
C4557-40015Roller - Rear roller (Black) - Between paper and rear paper guide
C6455-60056Roller - Pivot and feed roller assembly - Includes pivot and shaft with 4 rollers, gears, encoder disk, bearings - Feeds the media under the carriage assembly and print cartridges