Unlike the LaserWriter IINTX, which uses battery backed nonvolatile RAM to
store settings, the LaserWriter IIf and IIg use a device much like that in
the LaserWriter IINT. But where the IINT is limited to approximately
10,000 writes, the newer device allows approximately 50,000. The
LaserWriter IINTX has no such limit, but the battery within the memory
device will eventually fail -- resulting in the same symptoms.