The output from a dot matrix printer has become lighter over time. Which of the following should a technician do to fix the issue?

Dot matrix printers create images by striking pins against an ink-soaked cloth ribbon, which transfers ink to the paper. Over time and with use, the ink in the ribbon is depleted. This causes the printed output to become progressively lighter or faded. Replacing the old, worn-out ribbon with a new one is the standard procedure to restore print quality and darkness. This is the most common consumable part that affects print density in this type of printer.

A. A dirty printhead would likely cause missing dots, smudges, or gaps in characters, not a uniform fading of the entire output.

C. A maintenance kit addresses overall wear and tear; the specific issue of faded print is directly solved by replacing the ribbon.

D. Calibration corrects the alignment of characters and lines, which is unrelated to the faintness or darkness of the print.

1. Epson America, Inc. (2021). Epson FX-890II/FX-2190II User's Guide. Official Vendor Documentation. Page 91, "Replacing the Ribbon Cartridge," details the procedure for when "the printout is faint."

2. Hewlett-Packard Development Company, L.P. (2002). HP Dot Matrix Printers - Troubleshooting Poor Print Quality. HP Customer Support. Document c00002429. The document lists "Replace the ribbon" as a primary solution for "Faded print."