IOS110 Introduction to Operating Systems using Windows Session 9 1

Objectives: Printers Administering Printers Troubleshooting

Printer – the software interface between the O/S and the print device Print Device – the physical device that produces print output Print queue – a list of jobs waiting to be printed Printer drivers – converts graphics commands into instructions a particular print device can understand Printer ports – software interface between PC and print device (COM1: COM2:, LPT1:...) Print spooling – writing the contents of a print job to disk before sending to the print device Print Server – a computer that controls all of the printing on a network WYSIWYG – (wizzy-wig) - What You See Is What You Get. A term to indicate that the image on the video terminal will be faithfully reproduced on another media (e.g. print) 3 Terminology

Printers

Print Process 5 Printers User creates a document, then clicks Print WinXP creates a Print Job, including document and printer commands 1 WinXP queries Print Server for most recent version of Print Driver, and downloads it 2 Graphics Device Interface (GDI) and print driver may convert the print job into a rendered WinXP enhanced metafile (EMF) or into RAW format EMFRAW GDI Spooler

Print Process 6 Printers Spooler Client Server RPC Print Router Print Processor EMFRAW Print Provider Separator Page Processor Print Monitor Job spooled to Print Server or local disk Check kind of data received and pass to appropriate Print Processor of Print Provider Convert EMF to RAW if necessary

Print Setups Local Printing Small peer-to-peer Network 7 Printers

Print Setups Central Print Server 8 Printers

Print Setups Remote or Internet Printing 9 Printers

Creating a Local Printer WinXP has limitations that are not in Win2K or.NET Server Which groups have permission to create a local printer? 3 ways to configure a print device Local Remote Network 10 Printers

Setting up TCP/IP Printing Print Devices that have their own Network Interface Card If Windows is servicing non-Microsoft clients, add ons are available: Services for MacIntosh Services for UNIX 2.0 File and Print Services for NetWare If Windows accessing UNIX Print Server: Print Services for UNIX 11 Printers

Administering Printers

Printer Permissions Like NTFS Files and Folders, printers also have ACLs. Permissions: Print Manage Printers Manage Documents Conflicting Permissions – receives highest level (except when denied) 13 Administering Printers

Auditing Printers – Best Practices Configure auditing of both success and failure events for Change Permissions and Take Ownership operations on printers with restrictive permissions Configure auditing of failure events for Print operations on printers with restrictive permissions Configure auditing of success and failure events for Full Control operations Configure auditing of success events for Delete operations on printers with less restrictive permissions 14 Administering Printers

Printer Pools Multiple print devices acting under the same name under control of a print server Speeds up printing, as jobs are no longer processed serially 15 Administering Printers

Printer Priorities Opposite of printer pools Many printers pointing to a single print device, where each printer has its own priority (1 lowest (default), 99 highest) 16 Administering Printers

Spool Settings When jobs get stuck (paper jams etc.) you may need to restart the Print Spooler Service Spool settings can be set on a per printer basis: Spool print documents so program finishes printing faster Print directly to the printer Hold mismatched documents Print spooled documents first Keep documents after they have printed Enable advanced printing features Separator Pages Used to identify client who created job, when the job was submitted Redirecting Printing If printer has a failure, or needs to be taken off-line for maintenance Redirects all documents for the server Cannot redirect individual documents Cannot redirect a document that is already printing – if there has been a printer failure, the user may need to resubmit their job. 17 Administering Printers

Taking Ownership of a Printer The person that adds the printer is the owner – if, for example, they leave the company, the ownership may need to change Requires Manage Printers permission (Administrators and Power Users built-in groups have this permission) Connecting to an Internet Printer Remote Win2K/.NET print server needs to be running Internet Information Service (IIS) Can be installed on WinXP, however WinXP supports a maximum of _______ connections The printer is available through an HTTP connection, as if it was a Webpage. FAX Service Requires FAX modem to be attached The FAX modem is treated as a print device Can send and receive faxes Can be set up with name/address displayed on outgoing faxes, cover pages, notification 18 Administering Printers

Troubleshooting

Common Problems 'Cannot print' Access Denied Garbled output Hard disk thrashing or documents not printing Remember, only Administrators have Load and Unload Device Drivers permission – should be added to Power Users. Bidirectional printing problems – disable it Improperly configured ports – bidirectional printing set up for a print device that does not support it TCP/IP has its own set of issues (check for SNMP support to help with diagnostics) Graphic images do not print – disable enhanced metafile spooling 20 Troubleshooting