Real Time Request To Printer - NCR 7158 Owner's Manual

Real Time Request to Printer

ASCII:
Hexadecimal:
Decimal:
Value of n:
The printer responds to a request from the host specified by n. This
command includes two sequences: GS and DLE. The operations
performed depend on the value of n, according to the following
parameters.
n = 1:
Restarts printing from the beginning of the line where an error
occurred, after recovering from the error. Print settings that are
normally preserved from line to line, such as character height and
width, are still preserved with this command. This sequence is ignored
except when the printer is busy due to an error condition.
If the receipt is selected, this command will attempt recovery from a
knife error. Other errors associated with the receipt, such as paper out
or printhead overheating, can be recovered from only by clearing the
specific condition, such as loading paper or letting the printhead cool
down.
If the slip is selected, this command will attempt recovery from a slip
motor or flip jam by re-homing the printhead and waiting for a slip to
be inserted before restarting the print. Other errors associated with the
slip, such as cassette door open, can be recovered from only by clearing
the specific condition, such as closing the cassette door.
n = 2:
GS Sequence
GS ETX n or DLE ENQ n
1D 03 n
29 3 n or 16 5 n
1 = Recover and restart
2 = Recover and clear buffers
3 = Cancel slip waiting
Chapter 7: Programming Guide 7-107
DLE Sequence
or 10 05 n