2.3.3 Paper feed roller unitThe surface of the paper feed roller is blast-finished to ensure a maximum resolutionof 1200 × 1200 dpi. Take care not to scratch the surface of this roller.The drive gear used on the paper feed roller is also finished to high precision to feedthe paper in small increments for 1/1200 inch feeding. Take special care not to leaveany knock marks on this gear.2.3.4 Purge motorThe purge motor is very hot immediately after repeated printing or cleaning. Takecare not to touch the purge motor directly with bare hands after these operations.Part 1: Safety and Precautions BJC-85001-10Drive Gear Paper Feed RollerFigure 1-12 Paper Feed RollerDanger! High Temperature!Figure 1-13 Purge Motor