How to delete printer names during Check-in?

If someone mistakenly started a check-in printer, how can I remove it as one of the choices?

Printers normally are removed if they are not activated for 18 hours. 
To manually remove bad printer options, click the Reports icon checkinbutton in the bottom right corner of the login screen from any check-in station. Enter your check-in password to access Check-in Reports.  Note the new Printer List / Maintenance button.Printerlist
Click that button to see a master list of all active Printer Stations across all check-in views and stations.CiPrinters 
Click the red X to delete a printer based on your response to the following warning message.
WarnMes