Dot Matrix Printer Maintenance

Ink Ribbon Replacement

• Ink ribbon: a long piece of fabric inside the printer
• Provides ink for printing
• Ink gets consumed, causing lighter output over time
• Replace entire ribbon cartridge when ink is depleted
  • Cartridges are designed for quick replacement
  • Easily disconnects from the printer
  • New cartridge installed in moments

Printhead Maintenance

• Printhead constantly hits pins against the page
• Continuous movement can lead to printhead failure
• Printhead is small; contains large heatsinks to dissipate heat
• Handle carefully to avoid burns when replacing
• Modular design for easy replacement
  • Usually involves a release lever or bar
• Often replaced together with the ribbon for optimal output

Paper Replacement

• Dot matrix printers use tractor feed paper, not loose sheets
• Ensure paper is straight and aligned with feed holes
• Make sure feed holes on paper connect properly with tractor feed holes
• Ensure no obstructions in the paper feed path
• Confirm proper installation before continuing to print