US 11,748,588 B1
Automated secure paper tray access and paper quota management system for public printers
Ghazanfar Latif, Dhahran (SA); and Ghassen Ben Brahim, Dhahran (SA)
Assigned to Prince Mohammad Bin Faisal University, Dhahran (SA)
Filed by Prince Mohammad Bin Fahd University, Dhahran (SA)
Filed on Feb. 1, 2023, as Appl. No. 18/163,047.
Int. Cl. G06F 21/32 (2013.01); G06K 15/00 (2006.01); G06F 21/62 (2013.01); G06F 21/12 (2013.01)
CPC G06K 15/4065 (2013.01) [G06F 21/123 (2013.01); G06F 21/32 (2013.01); G06F 21/6209 (2013.01); G06K 15/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A paper tray access system for a printer, comprising:
a paper tray located in the printer;
a locking cover of the paper tray;
an authentication device;
a weight sensor located beneath the paper tray;
a printer display;
a computing device including an electrical circuitry, a memory storing program instructions and at least one processor configured to execute the program instructions to:
receive a user input from the authentication device;
determine whether the user input matches an authentication record stored in the memory;
when the user input matches the authentication record, present a selection on the printer display to access the paper tray;
receive the selection;
record a first weight of the paper tray upon receiving the selection;
unlock the locking cover;
record a second weight of the paper tray;
calculate an amount of papers removed from the paper tray when the second weight is less than the first weight; and
calculate an amount of papers added to the paper tray when the second weight is greater than the first weight.