3 control-panel door (provides access to the print cartridge; serial and model numbers are located on a panel underneath the door) 20 Product Information C9148-90909 1 2 1 automatic document feeder (ADF) input (with sliding media guides) 6 2 ADF cover (lifts for access to the glass) 5 output bin (for printed output and copies) Figure 2. Product parts (front view; right side) Figure 3. Optical-unit lock (front view; left side) 5 Front view 3 4 control panel 6 optical-unit lock 4 Product overview 1 2 5 4 3