Xerox 4213 User Manual page 367

POSTSCRIPT EMULATION
A4-10
Figure A4-8. How to hold a coprocessor board
1. Coprocessor board
2. Notch
3. Carefully insert the board at an angle of approximately 30°
from vertical (refer to figure A4-9).
Figure A4-9. Coprocessor board at 30° angle
XEROX 4213 LASER PRINTER USER GUIDE