LPD Operation

LPD OperationSupported File Types

The access server’s LPD implementation supports printing of ASCII text and PostScript files. The access server does not convert files from one format to the other. Users must be aware of the type of file they want to print and select the appropriate printer when submitting a print job.

Control and Data Files

During the printing operation, the access server receives control and data files from the remote host. The following table describes these files:

This File:

Contains:

 

 

Control

File format information and user information (for example, host and

 

user name).

Data file

Total number of bytes in the file, the name of the data file, and the

 

data.

 

 

Remote hosts can send control and data files in any order. The access server does the following:

∙If the control file arrives first, the access server stores the file, waits for the data file to arrive, and then prints the data. The access server sends the user data in the control file as the last page of the print job.

If the Control File

Does the Header/

Does the User

Arrives First and the:

Trailer Print?

Information Print?

 

 

 

Header is enabled.

Yes

Yes

Header is disabled.

No

No

Header is optional.

Yes

Yes

Trailer is enabled.

Yes

Yes

Trailer is disabled.

No

No

Trailer is optional.

No

No

 

 

 

∙If the data file arrives first, the access server sends the file to the printer according to the printer setup on the port. When the control file arrives, the access server

14-2 Configuring LPD Printers