Proportional Space Mode (Esc P); Deselect On Positive Query Reply (Esc Q); Set Default Tabs (Esc R); Begin Subscript / Superscript Mode (Esc S) - IBM 4247 A00 User Manual

Proportional Space Mode (ESC P)

This control starts or stops proportional space mode.
NN is a one-byte hexadecimal value that sets proportional space mode on or off.
v If NN is 1, proportional space mode is on
v If NN is 0, proportional space mode is off
Note: Code pages OCR-A (code page 876), OCR-B (code page 877), Arabic (code

Deselect on Positive Query Reply (ESC Q)

This control operates differently depending upon the interface in use.
v Parallel interface: The printer is deselected if the response to the query is
v Serial interface: The printer transmits the printer ID back to the host if the
NN is the query printer identifier. If the value matches the printer's ID, the query
response is positive and the printer deactivates the Select line (parallel interface) or
echoes back to the ID (serial interface). If the query is not positive, the control is
ignored. For the parallel interface, the printer must be reselected using a DC1
control after a positive response to ESC Q if the printer is to be used.
Query Identifiers: If the emulation mode is set to 4202 III XL, the printer ID is
X'16'. If the emulation mode is set to Native 4247 or 2381, the printer ID is X'B8'.

Set Default Tabs (ESC R)

This control resets both the horizontal and vertical tab stops. The horizontal tab
stops are set to every eighth position starting with the ninth column (9, 17, 25,...).
The vertical tab stops are cleared.

Begin Subscript / Superscript Mode (ESC S)

This control activates subscript and superscript printing. Once this printing is active,
it stays active until another Begin Subscript/Superscript Mode control changes the
mode, an End Subscript/Superscript Mode control is received, or the printer is
initialized.
NN is a one-byte hexadecimal value that activates subscript or superscript printing.
v If NN is 1, subscript mode is active.
v If NN is 0, superscript mode is active.
204
4247 Printer Model A00 User's Guide
1B 50 NN
page 864), Cyrillic (code page 855), Thai (code page 874), Extended Arabic
(code page 1046), and Farsi Bilingual (code page 1098) are not supported in
proportional space mode.
1B 51 NN
positive.
response to the query is positive.
1B 52
1B 53 NN