Hitachi IJ RX2 Technical Manual page 18

(14) If you try to fix the print head with a magnetic substance (such as iron), the cover switch will
malfunction resulting in an "Cover Open" error.
This, you must only use nonmagnetic resins or metals for fixing the print head.
(15) In the case of carrying the printer proper, use the handles in the drawing below.
2-3 ●Installing Precautions