LPR PJL4 Print Driver

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LPR PJL4 Print Driver

Many HP LaserJet-compatible printers support an extended set of PJL, which allow job separation, print job configuration, and printer configuration.

Activate this extended PJL support by specifying TCPDRIV=PJL4 in the printer node definition; this does the following:

Performs the same functions as the LPR PJL printer driver support.
A 'PJL JOB NAME = "File: 999999 Name: [set the File Name variable] Userid: <userid>" command and a 'PJL RDYMSG DISPLAY ="[set the File Name variable] 999999"' command are sent after the ESFU010X start separator page exit call.
If the F - auto format print driver option is specified using TCPDRIV, the following happens, after the PJL JOB and RDYMSG commands, but before the data file is sent:
- For both binary and text files, if the FORM PJL resource is found in the PJLLIB library, it is sent before the data file.
  If the FORM resource is not found in PJLLIB, the file class is checked for simplex/duplex specification. If the file class is S, a Simplex print PJL command is added. If the file class is D, a Duplex print PJL command is added.
- FCB for text files:
  If the FCB PJL resource is found in the PJLLIB library, it is sent.
  
  If the FCB resource is not found in PJLLIB, formatting PJL commands are automatically built and sent based on the following algorithms:
  - If no Max Print Position (MPP) is specified using the FCB extension and the LRECL of the file is less than 319, the LRECL is used as the MPP.
  - If no Character Per Inch (CPI) is specified using either the CHARS parameter or the FCB extension, the CPI defaults to 12 if the MPP is less than or equal to 90.
    If the MPP is greater than 90, the CPI is calculated as MPP/10.0.
  - If MPP/CPI is less than 7.2, a 'PJL SET ORIENTATION = PORTRAIT' command is sent; otherwise a 'PJL SET ORIENTATION = LANDSCAPE' command is sent.
  - For text files, the default Max Lines per page (MPL) is the number of lines per page value in the FCB of the file. For NOCC files with a LINECOUNT parameter specified, the LINECOUNT value is the value of the MPL.
  - Send a 'PJL SET FORMLINES = <MPL>' command to set the maximum number of lines per page.
- CHARS for text files:
  Only the first CHARS in the CHARS set is used by the TCP/IP PJL4 print driver.
  
  If this CHARS PJL resource is found in the PJLLIB library, it is sent.
  
  If the CHARS resource is not found in PJLLIB, font selection PJL commands are automatically built and sent based on the following values:

Value	Font
CB00 to CB29	4099 Courier Bold
CE00 to CE29	4099 Courier
CI00 to CI29	4099 Courier Italic
CR00 to CR29	4099 Courier
GB00 to GB29	4099 Courier Bold
GL00 to GL29	4099 Courier
GT00 to GT29	4099 Courier
OB00 to OB29	4102 Letter Gothic Bold
OR00 to OR29	4102 Letter Gothic
PR00 to PR29	4099 Courier
RT00 to RT29	4099 Courier Bold
SI00 to SI29	4099 Courier Italic
ST00 to ST29	4099 Courier
LP17	0000 Line Printer 16.67/8.5

Other values produce unpredictable results.

The value of the last two numeric characters is used as the CPI (pitch).
The corresponding 'PJL LPARM:PCL FONTNUMBER=<nnn>' command, 'PJL LPARM:PCL PITCH=<CPI>' command, and 'PJL LPARM:PCL SYMSET=WINL1' command are sent.
A 'PJL SET FORMLINES = <MPL>' command to set the maximum number of lines per page is sent.

If any of the USERDATA fields in the file starts with '@PJL', they're sent as PJL commands before the data file.
A 'PJL EOJ NAME = "File: 999999 Name: [set the File Name variable] Userid: <userid>"' command and a 'PJL RDYMSG DISPLAY =" "' command are sent before the ESFU010X end separator page exit call.

Note the following:

The PJL resources searched in PJLLIB are the file's FORM, FCB, and CHARS values prefixed with 'FORM', 'FCB2', and 'CHAR' respectively. Therefore, if a file is created with FORM=STD, FCB=8, and CHARS=CR12, the matching resource names are 'FORMSTD', 'FCB28', and 'CHARCR12' respectively.
A PJL resource member must contain valid PJL commands in EBCDIC. For example, when FCB=6 is a file attribute, PJL resource member FCB26 is added to the PJLLIB library as follows:
```
@PJL SET ORIENTATION = PORTRAIT
```
```
@PJL SET FORMLINES = 51
```
To support different printer capabilities, a PJL resource member can contain multiple sets of PJL commands selected by the device type of the printer node. These PJL command sets must be separated and identified by special DEVICE=device type statements.
For example, first enter the default PJL command set followed by a special PJL command set for device type 'HPLJ5SI', as follows:
```
@PJL SET ORIENTATION = PORTRAIT
```
```
@PJL SET FORMLINES = 51
```
```
DEVICE=HPLJ5SI
```
```
@PJL SET ORIENTATION = PORTRAIT
```
```
@PJL SET FORMLINES = 52
```
You can modify the default configuration of a printer by sending PJL INITIALIZE, RESET, and DEFAULT PJL commands to the printer. For example, when the form attribute of a file is FORM=DEF0 PJL, you can use resource member FORMDEF0 to reset the PJL default environment variables to their factory default values, as follows:
```
@PJL SET ORIENTATION
```