Transcript ppt - people

IOS110
Introduction to Operating Systems using Windows
Session 9
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Objectives:
•Printers
•Administering Printers
•Troubleshooting
Terminology
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)
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Printers
Printers
Print Process
WinXP creates a Print Job, including
document and printer commands
User creates a document,
then clicks Print
GDI
Graphics Device Interface (GDI) and print
driver may convert the print job into a
rendered WinXP enhanced metafile (EMF)
or into RAW format
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WinXP queries Print Server
for most recent version of Print
Driver, and downloads it
RAW
EMF
Spooler
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Printers
Print Process
Spooler
Client
Job spooled to Print Server
or local disk
Print Router
Server
Check kind of data
received and pass
to appropriate
Print Processor of
Print Provider
RPC
Print Provider
Separator Page
Processor
Print Processor
Print
Monitor
EMF
RAW
Convert EMF to RAW if necessary
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Printers
Print Setups
Local Printing
Small peer-to-peer Network
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Printers
Print Setups
Central Print Server
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Printers
Print Setups
Remote or Internet Printing
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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
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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
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Administering 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)
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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
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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
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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)
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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.
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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
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Troubleshooting
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
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