Compuprint MDP40B Programmer Manual - Manual (Page 198)

C-56
ESC U
Book operator. (Olivetti PR2, PR40+, 2845)
ASCII Code ESC U n
Hexadecimal Value 1B 55 n
Decimal Value 27 85 n
Books an operator and switches on/off the station LEDs specified by the configuration
of parameter "n", which has the following structure:
Byte n:
bit 8: = 0 fixed
bit 7: = 1 fixed
bit 6: = 1 Book Operator
bit 5: = 0 Led OFF
1 Led ON
bit 4: = 0 fixed
bit 3: = 0 fixed
bit 2: = 1 Station 2
bit 1: = 1 Station 1
The STATION 1 and STATION 2 LEDs inform the single operator whether the printer
has been dedicated to him or not. Bits 5 and 6 may have one of the four combinations
indicated in the table below: