Printronix P5000LJ user manual Restarting at a user-specified page number in a command

Chapter 8 Using Page Level Recovery On P5000LJ Printers

	Restarting at a user-specified page number in a command
	Processing of a spool file can be suspended and then resumed. It can be
	suspended by using the spooler command with the suspend parameter
	or by using the suspendspool command. It can be resumed with the
	spooler command with the resume parameter or by using the
	resumespool command. When the spool file resumes printing, it can start
	exactly where it left off or at another specified page.
	For P5000LJ printers, the optional offset parameter in the spooler
	command can only be used to specify an absolute offset (i.e., absence of a +
	or – sign). When the offset parameter is not used, printing resumes where
	it stopped. When the offset parameter is used, a silent run (PLR) will occur
	up until the specified starting place.
Note	The CIPER protocol devices (e.g., C256x using the HP-IB interface) allow
	you to specify the offset parameter with the + or – sign. With spooled
	network printers such as P5000LJ printers, unpredictable results will occur
	if the offset parameter is used with the + or – sign.
	For example, to suspend spooling and to position 7 pages from the beginning
	of the spool file, enter the following command:
	spooler 6;suspend;offset=7
	In this case, the absence of a + or – sign indicates an absolute offset from the
	beginning of the spool file.

Because P5000LJ printers are typically connected to the network with the NIC, many of the spooler commands (e.g., those described above) should be avoided for mid-file suspension. This is because of two reasons: 1) a great deal of data is buffered in the network process and must be completed, and,

2)the network connection can be dropped if the printer is ready to receive data but no data is being sent. (Refer to the HP e3000 MPE/iX Native Mode Spooler Reference Manual.)

Restarting at the point of interruption when a device exception occurs

When a device exception occurs, this is an unexpected recovery situation. A device exception includes things such as paper jams, load paper error, etc.

Assume that the P5000LJ printer is connected to the network with the NIC. In order for PLR (silent run) to take place after a device exception and without specifying spooler commands to restart, the printer must be power cycled (e.g., after the jam). This is different from the way it may work with other HP printers that support PLR and use an “internal” JetDirect interface. This is also different from the way it works with the C256X printers that use the HP-IB interface. This caveat may be one of the reasons it appears that PLR does not work for P5000LJ printers. Note that printing will start with the page following the last one printed.

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