How do I know via PHP that page printed and update in mysql

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Hello i have php website that is workind like system for acounting..

i have receipt, invoice etc..

i have a problem in mySQL data base main table i have in Main_table variable how_much_ printed and via php and mySql i need to update it ! every time that user does even ctrl P

how do i do that ?

the caus is that in law i need to print on thefirst document that its source document..

i didn"t find any way so I decided to block the printing with css and do printing web page seperatly - its looks ugly if someone can find way ?

Thanks alot for help
Yan

What I have tried:

i tried to search internet..

i builded sepered page with id of the document to update and it looks bad