Operator’s Guide 241
ESC 4 Set Top of Form
ASCII: ESC 4
Control: CTRL [4
Decimal: 27 52
Hexadecimal: 1B 34
Sets the current paper position as the top of form.
CAN Cancel Data in Print Buffer
ASCII: CAN
Control: CTRL X
Decimal: 24
Hexadecimal: 18
Cancels all data currently in the print buffer.
If Auto Carriage Return (CR on LF) is enabled, the left margin becomes
the current print position.
DC1 Select Printer
ASCII: DC1
Control: CTRL Q
Decimal: 17
Hexadecimal: 11
Sets the printer to accept data from the computer after it has been
deselected by
ESC Q (22) in the serial mode. This code does not place the printer on
line if it has been placed off line by pressing ON LINE. DC1 is the X-ON
character.
See Appendix B for details regarding software handshaking.