If paper gets stuck at the last stage of printing, the rollers responsible for moving the paper through the printer are likely worn out or dirty. * Why Not B (Tray assembly): The tray assembly manages paper loading, not feeding during the print process. * Why Not C (Toner): Toner is unrelated to paper jams. * Why Not D (Printhead): Printheads manage ink/toner distribution, not paper movement. CompTIA A+ Exam Reference: Core 2 (220-1102), Section 4.6, printer troubleshooting.