HP Color LaserJet 5500 Technical Reference Manual page 83

Variable
RET
TIMEOUT
WIDEA4
General PJL Environment Variables
Description
Configuration of the Resolution Enhancement
hardware. Resolution Enhancement
technology (REt) improves the print quality of
characters and graphics by smoothing the
edges of lines. Most users do not need to adjust
this feature since the default setting works
well for almost every type of job.
Duration of I/O timeouts in seconds. If the
printer waits longer than the timeout value
without receiving any data, it ends the print
job and begins accepting data from other I/O
ports, if any. In most cases, do not adjust this
feature unless the printer times out during
normal operation, in which case you can try
extending the timeout duration. (See the
"Timeouts" description in Appendix A.)
Changes the margins/printable area of A4
paper so that 80 10-pitch characters may be
printed on a line.
Sample Value
Range
LIGHT, MEDIUM,
DARK, ON, OFF,
AUTO
5 to 300
NO, YES
Environment Commands 6-21