PRINT PEN overrides any ALPHA PEN statement that may be in effect. The pen-number is a numeric expression rounded to an integer. If you are using CRTB, the bit-mapped display driver mode, legal values are from 0 to 15. (HP BASIC supports values to 255.) If you are using CRTA, the non-bit-mapped display driver mode, legal values are from 136 to 143. This statement is equivalent to CONTROLCRT,15;pen-number.