Getting your printer to print much more darker in terms of the ink is a lot more easy exercise to perform than any other printer related troubleshooting activity. Just follow the below mentioned troubleshooting steps in order to solve your printing related problems and needs –
Open the printer application and select the option of PRINT in the menu.
Access the printer preferences dialog box
Click on Quality option and then the settings
Now adjust the toner density by moving the density scale to the desired position
Click OK
Now give a print and you will see that the quality of the print taken is become much more darker than it used to be earlier.