Hi Customer (name blocked for privacy),
The only light indicator that resembles a roller on your machine is the drum replacement required indicator light. If the light is steady, it means replacement of the cartridge will be needed soon and to prepare one for replacement. If the light is blinking the drum cartridge needs to be replaced with a new one for the machine to operate. I was unable to copy and paste the "icon" troubleshooting section for you from the manual on your machine so I am giving you the link so you can clarify that the icon you described is the same one I am referring to. Good luck !http://www.sharpusa.com/files/cop_man_AL1641CS_1631.pdf
I hope I have answered your question. If so please press the accept button as well as leaving positive feedback if you feel you are satisfied with my answer.
Have a super day!
__________________
If you are satisfied with my answer, press the ACCEPT button as it is the only way I receive credit for my work. Thank you!