Chapter 7 Using Page Level Recovery On LineJet Printers

Using Page Level Recovery On LineJet Printers

 

The native mode spooler on MPE/iX 5.5 (and later) supports Page Level

 

Recovery (PLR). PLR provides the ability to restart printing at any page of a

 

document due to device problems or a suspended spooler. (Refer to the HP

 

e3000 MPE/iX Native Mode Spooler Reference Manual for more information.)

 

Clarification on how it is handled for LineJet printers is described below.

 

 

Note

One feature of the Printer Job Language (PJL) spooler is the ability to

 

keep track of pages printed as a part of Page Level Recovery. On a paper

 

jam or paper out condition, the printer control panel displays the page

 

number counted.

 

For Page Level Recovery to be operational, the printer must have a

 

minimum of 4 MB Flash and DRAM memory; CMX Controller, Version 5.5

 

or later; and be running Function Code, Version 356351, Rev. 2.07P or

 

later. All of these requirements are satisfied with the LineJet and LP Series

 

“C” and above models. However, LP Series “A” and “B” models require

 

upgrading to gain Page Level Recovery functionality.

 

 

 

There are three types of PLR that can occur, and all three use silent run

 

techniques. That is, the data is sent to the printer and the printer interprets it

 

but does not start actual printing until the printer reaches a target starting

 

page specified by the spooler (e.g., the page following the last one printed).

 

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 LineJet 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 LineJet 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.

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HP LQH-HW 3ULQWHUV Using Page Level Recovery On LineJet Printers, Restarting at a user-specified page number in a command
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