There are several ways to delete spool requests:
Connecting Printers to the Operating Systems Spool
Before you can define a new printing device in the SAP system, the printer must be physically installed and configured in the host operating system that is running the host spool system, and thus managing the spool request sent to that device. Printers can be connected to several types of operating systems: UNIX systems, Microsoft Windows platforms, AS/400, and others, and can be connected either locally (physically attached to those servers) or remotely (through the network). SAP WAS supports all those types of connections, although the concept is slightly different.
From the point of view of the access methods, local printing means that the spool work process is running on the same server as the host operating system spool, and remote printing is when the servers are different and connected through the network. A third way, known by SAP as PC printing, is when printers are configured on Windows PC systems through the print manager. There is also the option of local PC printing even when the printers are not defined at the SAP level.
At the same time, there are many vendors, models, flavors, print protocols, and so on for the printers. Not all understand the same printing language or support the same printing features and possibilities. Before you can define a new printer device within the SAP system, it's absolutely critical that you define, configure, and test the printer on the host system where the printer is connected. Only then can you be sure that the printer can be defined and will function properly within SAP.
For setting up printers on the operating system spool, every hardware vendor and operating system has its procedure. The SAP official online help documentation (SAP Printing Guide) includes instructions on how to set up printers in most of the supported operating systems. You can look in this documentation or the official administration manual of your server operating system for more information.
When printers are not directly connected to the host systems but are connected remotely to the network, commonly they use the TCP/IP protocol. In these cases, you must ensure that the printer is accessed by the network and test that it prints correctly. For instance, their IP address must be included in the hosts server file or in the domain name servers. As requirements for proceeding with the definition of printers within SAP systems, the following information is needed:
Defining SAP Printer Devices
For the SAP system, a printer is defined as an output device, just like a fax or optical archive equipment. The SAP system includes an extensive spool administration transaction for defining and managing all aspects of printing configuration and output devices. To call this transaction, from the initial SAP menu, select Tools | CCMS | Spool | Spool Administration or, alternatively, enter transaction code SPAD in the command field.
The Spool Administration initial screen (SPAD transaction)
You have many options to define how and what to see in the initial screen for spool administration: system managers accustomed to previous releases can use the old initial administration screen or can decide to switch to the new one. To select the initial Spool Administration screen that will be displayed when calling transaction SPAD, from the menu Settings | Selection Screen select the option required. By default the system shows the simple administration screen, and you can get additional options by clicking on the Extended Administration or Full Administration pushbuttons on the application toolbar.
The initial administration screen has several parts that will show more or fewer components depending on whether simple, extended, or full administration is selected. In the simple administration mode, you have a basic screen with two tabstrips: Devices/Servers and Admin.
Options for the Devices server simple administration screen include four items that are the only options for output devices:
When full administration is selected, the screen includes additional options for configuration of device types, output management systems, character sets, and text pools for title pages. You can find extensive information about extended options in the SAP online documentation SAP Printing Guide. The Administration tabstrip includes four pushbutton functions that are used for administrative purposes, including deleting old spool requests, performing checks and consistency checks of the spool system, and displaying a list of print requests. In this section, only the process of creating a new printer—a new output device—is explained.
To change or create a new printer, from the Spool Administration initial screen, click on the Devices/Server tabstrip and then click on the Output Devices pushbutton, or select Configuration | Output Devices from the menu bar. On this screen, select the change mode by clicking on the Change icon on the application toolbar. The system will display the list of current output devices. On this screen, click on the Create icon for defining a new output device.
Screen for creating new output devices
To define a new output device you must at least fill up the required entry fields. Notice that the system already has filled up some default values. Fields on this screen are as follows:
Dialog box with available device classes
Clicking on the Output Attributes tabstrip in the Spool Administration screen, you have some further options such as the following:
Logical Output Devices and Device Pools
It is also possible to define logical printer devices. Logical printer devices are virtual devices that must be mapped against existing defined printer devices in the system. When creating a logical printer device, what the system actually defines is a device of access type P or Pool Device, mapped against only one physical device. In this sense, a Logical Device can be considered as a Pool Device with one and only one physical device assigned.
Device pools have the purpose of grouping devices of the same type (for example, PostScript printers) using a unique device name, thus permitting the spool requests directed to that pool to be printed by any of the devices assigned to the pool. This type of device definition is completely equivalent to well-known logical printer queues of many operating systems, where a print job directed to the logical queue is output by any of the physical queues defined for the logical queue.
In SAP systems, what is assigned to the pool is not the physical printer itself but the output device, which can be either logical or physical. When the device is a logical device, it must be directly or indirectly mapped to a physical device. A device pool covers two basic functions of the printing devices:
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