Epson 4000 User Manual

MSB Control
MSB means the Most Significant Bit. MSB control (ESC =, ESC >, and

ESC #) does not work for graphics or user-defined characters.

Format:

ASCII code:

ESC

Decimal:

27 6

Hexadecimal: 1B 3D

Comments:

Sets the MSB of all incoming data to 0. Some computers always

send data with the MSB set to 1, which means that italics or

character graphics are always printed. ESC = can overcome this

problem.

Format:

A S C I I   c o d e :   E S C

Decimal:

27 62

Hexadecimal: 1B 3E

Comments:

Sets the MSB bit of all incoming data as 1.

Format:

ASCII code:

ESC #

Decimal:

27 35

Hexadecimal: 1B 23

Comments:

Cancels the MSB control set by ESC = or ESC >.