The Collaborative International Dictionary of English v.0.48:

lase \lase\ (l[=a]z) v. i. [imp. & p. p. lased (l[=a]zd); p.
   pr. & vb. n. lasing.] [by back-formation from laser. See
   laser.]
   To give off a beam of coherent light; -- of a laser.
   [PJC]

The Jargon File (version 4.4.7, 29 Dec 2003):

lase
 /layz/, vt.

    To print a given document via a laser printer. ?OK, let's lase that sucker
    and see if all those graphics-macro calls did the right things.?


The Free On-line Dictionary of Computing (30 December 2018):

lase

   /layz/ To print a given document via a laser printer.  "OK,
   let's lase that sucker and see if all those graphics-macro
   calls did the right things."