Moodle rubrics are embedded inside the Grading Summary table when appearing on a students assessment. When they print, the rubric is truncated on the right hand side as shown below.
Steps to reproduce:
- Create an assignment with a Rubric for grading.
- Set up the rubric with at least 3 or 4 levels on a criterion.
- Display the assessment and switch role to student to display the grading summary section.
- Print preview or print the assessment.
This occurs on Firefox 53 and Chrome 58. I have not tested on IE or Safari.