Low Quality Printing
If your prints contain faded areas, incorrect colors, unwanted lines, etc., there are several things you should check.
If your printer ink is low (even a single color), it can affect the quality of printing. Check your printer ink levels to make sure you have adequate ink. Your printer manual should provide information on how to do this.
If you are using an inkjet printer, you may need to run maintenance such as nozzle cleaning. Consult your printer manual for details on how to do this and other types of maintenance.