Specifications

CHAPTER 2
LaserWriter 16/600 PS Software
Interpreter Parameters 57
Engine Device Parameters 2
The %Engine% device contains parameters that control the print engine itself. The
LaserWriter 16/600 PS printer’s %Engine% device contains the parameters listed in
Table 2-19.
Table 2-18 Parameters for %Scsi% bus devices
Key Type Default Description
BootDelay integer 0 Indicates how long the disk I/O driver should wait
for the disk to spin up before determining that the
disk in the printer is not present or responding. A
value of 0 indicates no waiting.
CheckParity boolean false Indicates whether or not to check parity on the
SCSI bus.
InitiatorID integer 7 Indicates the address on the SCSI bus used by the
printer when it serves as the initiator.
Poll integer 127 A bit encoded specification of the addresses on
the SCSI bus that should be polled by the printer
when looking for disks during PostScript system
initialization.
TargetID integer 7 Indicates the SCSI bus address reserved for use as
the %ScsiComm% communications channel. May be
the same value as the InitiatorID.
Type name /Parameters This constant always returns a value of
/Parameters.
Table 2-19 Parameters for %Engine% devices
Key Type Default Description
Darkness real 0.5 Controls the amount of toner applied to the
paper. A value of 0.0 signifies the minimum
darkness, and 1.0 signifies the maximum
darkness. Values outside this range are not
legal. The LaserWriter 16/600 PS printer
supports 16 levels of darkness, so this
parameter is quantized into 16 steps. This
is done by taking the integer portion of
Darkness*15. Therefore, a value of 0.0 is not
distinguishable from 0.05, but it is distinguish-
able from 0.1. Changes in the Darkness
parameter are not sent to the engine until there
are no pages in the paper path, either feeding or
being copied.
This value persists across power cycles
and restarts.
continued