As a receiving clerk making $37,800 a year, Marque Gumbs knew his position was pretty low level at Memorial Sloan-Kettering Cancer Center. So he came up with an ingenious cure for that.

Until he got caught.

Gumbs, 33, was sentenced to at least 2½ years in prison yesterday for stealing $4 million — by ordering and reselling ink-toner cartridges.

As part of his sentencing in Manhattan Supreme Court, he agreed to forfeit much of his ill-gotten spoils — the BMW, the Apple and HP laptops, the Canon PowerShot SD750 camera, the Apple iPod, the four Louis Vuitton bags, and all of the Rolex and Gucci watches.

Some things he got to keep — such as his memories of entertaining a bevy of young women in his Trump Tower pad in New Rochelle and of lavish vacations to Las Vegas and the Caribbean.

Gumbs plied his scheme between 2007 and 2010. Probation officials figure they might be able to keep him in prison for as long as seven years.