HP Officejet 7612 Wide Format e-All-in-One - Manual (Page 303)

Problem with printer preparation
The printer clock has failed and ink preparation may not be complete. The estimated Ink Level gauge
might be inaccurate.
Solution: Check the print quality of your print job. If it is not satisfactory, running the printhead
cleaning procedure from the toolbox might improve it.
286 Appendix G Errors (Windows) ENWW