Hajek signed a one-year, minor-league contract with AHL Wilkes-Barre/Scranton on Tuesday.
Hajek won't get a qualifying offer from the Rangers, which will make him an unrestricted free agent Saturday, per Arthur Staple of The Athletic.
Hajek was assigned to AHL Hartford on Tuesday.
Hajek was waived by the Rangers on Thursday, per TSN's Chris Johnston.
Hajek hasn't dressed for a game since Dec. 12.
Hajek totaled one shot, two blocked shots, two PIM and a plus-1 rating across 12:24 TOI in Monday's 4-3 overtime win over the Devils.
Hajek scored a goal and produced a plus-2 rating during Thursday's 8-2 victory over the Red Wings.
The Rangers signed Hajek to a one-year, $800,000 contract Monday, per CapFriendly.
Hajek is over his illness but is listed as a healthy scratch for Tuesday's game against visiting Carolina.
Hajek (illness) isn't expected to play Wednesday versus the Red Wings, Vince Z. Mercogliano of USA Today reports.