CLJ 5550dn: "68.0 Permanent Storage Write Fail" and seems to calibrate too often

[MikeInMass]

I have a Color Laserjet 5550dn which comes up with "68.0 Permanent Storage Write Fail" at power-on which seems to indicate it can't write to NVRAM. It prints fine after pressing the check mark to clear the error.

But it also says "Calibrating..." after every power-on, and also when awakening from powersave. I think that's abnormal, right? I assume it's related to the 68.0 error.

Where's the NVRAM that can't be written to -- on the formatter or the DC controller? Is the fix to replace one or both of those?

Thanks!

[Lance15]

To initialize the NVRAM on an HP Color LaserJet 5550 printer, power off the printer, then power it back on. When the memory count appears on the control panel display, press and hold the Down Arrow button until all three control panel lights flash and then remain lit. Then, press the Up Arrow button, followed by the Menu button. The display should show "SKIP DISK LOAD". Finally, press the Up Arrow until "NVRAM INIT" is highlighted and press the Select button.