Product specifications

12 – 2

(d) Details

• If a multipass character (ex. double height characters) is in the print buffer, when

BS is executed, the paper is reverse feed back to the original printing position of

the multipass character, and the character is printed. (Precise printing position is

not guaranteed).

• If no “printable” data (including “space) has been previously received by the printer,

the BS is ignored.

• If there is character data on a line formed by 12 vertical dots, such as Line

Graphics, and a BS command is executed, the printer performs a line feed to the

printing position of the next data block and prints.

• The left margin is the limit to the positioning of the printhead when multiple BS

commands are executed. Any subsequent BS commands, processed after this limit

is reached, are ignored.

• Regardless of any CPI change in the middle of the print line, the distance that the

printhead moves backward is the same as the width of the matrix cell (which

includes Inter-character clearance columns) of the CPI that was active previous

to the processing of the BS command.

• Backspace does not initiate printing action (block change); it is executed when

character data or a “initiate printing action” command is received.

• BS + DBL-Width → double width BS

• BS + Inter-char clearance → BS normal char width + clearance

BS + Proportional → Current CPI character width without proportional.

4) Delete

(a) Code: DEL

(b) Compatibility: EPS FX

Delete the last printable character data in the print buffer.

(d) Additional details:

• If the data which is to be deleted is a SP code, (20) H or (32) D, one SP code

is deleted by this command.

• If the data which is to be deleted is in bit image graphics, this command is ignored.

• H-TABs are not deleted.

5) Print direction—select unibidirectional print

(a) Code: ESC U n

(b) Compatibility: EPS FX/IBM lll

Choose between left-to-right (unidirectional) printing which achieves improved inter-

line print registration, or Bidirectional printing which achieves faster throughput.

(d) Range:

Unidirectional Bidirectional

Epson 01H, 31H, 81H, or B1H 00H, 30H, 80H, or B0H

IBM Odd numbers Even numbers