2123.a better waytoprint.universal print

A Better Way to Print
Using the New Citrix Presentation
Server 4 Universal Printer Driver
Gary Barton
Sr. Software Engineer
Citrix Systems, Inc.
Scott Lane
Sales Engineer
Citrix Systems, Inc.
Dave Fiske
Citrix Architect
Eschelon Telecom, Inc.

2 © 2005 Citrix Systems, Inc.—All rights reserved.
Today’s Agenda
• Presentation Server 4 printing enhancements
– Reengineered printing subsystem
– Session Printers Policy rule
– Advanced Universal Printing
• Technical details
– UPD performance
– Printing subsystem customization
– Deploying and troubleshooting
• Customer case study
– Eschelon Telecom, Inc.

Rising to the Challenge –
Citrix Presentation Server 4.0
• Reengineered printing subsystem
– Policy driven, secure, centralized
session printer management
• Session printers policy rule
– Connect network printers using
policy rules and filters
• Advanced universal printing
– New EMF based UPD supporting
ALL device printing options

Reengineer Printing Subsystem
- Why ?
• Security
– Designed in rather than band-aid
• Performance
– More aggressive print data compression
• Robustness
– Correct long-standing design issues
• Reliability, Scalability, Extensibility
– Getting out of the kernel
– Eliminate dependence on spooler for printer state
– Clean modular design that is easily extended
• Features, Features, Features…

Friendly Client Printer Names
• Same convention as Windows terminal services
• Names are session unique
• The identifiable part of the name is visible in smaller dialog boxes

Pass through Client Printer Names
ICA Session ICA Session
Presentation Server 4
Presentation Server 3 and predecessors

Secure Client Printing
• No misrouting of
print jobs due to
client name
collisions
• Auto-created client
printers accessible
only within session
• Limited MANAGE
access for regular
users

Enhanced print data compression
CTXCPM
CTXTWI
CTXCCM
CTXTW
…
{ICA Session}
• User-mode pageable memory
• Larger history buffer
(up to 8MB)
• History buffer reused by
subsequent print jobs

Extended Printer Properties
• Printer properties retained on
client or server-side user profile
• Printer Properties Retention
policy controls where properties
are retained
• Provides for exchange of device
specific printer settings with client
– Requires identical drivers
installed on client and server

Policy based management
• Policies
– Prioritized collections of
enabled and disabled rules
• Rule
– Control for a specific system
setting
• Filters
– Policy assignment criteria
Printer management accomplished through
Presentation Server policies

Presentation Server policy filters

Session Printers Policy
• Import a single print queue
2. Browse for Print server
3. Select Print Server
4. Select the specific Print
queue to import
1. Enable Session Printers Policy

Session Printers Policy
• Customize printer workspace based on policy
– User’s default printer can be set per policy

Driver management headaches
• Native Windows server drivers
– Availability
– Substituting older model native drivers
– Maintaining print driver mappings
• Vendor provided drivers
– Availability for Windows Server
– Terminal services compatibility
– Version change
– Replicating drivers throughout server farm

Citrix Universal Printing Evolution
• The first Universal Printer Driver
– MetaFrame XP Presentation Server FR1
– Based on HP LaserJet II
– 300 dpi monochrome
• Universal Printer Driver, Generation 2
– MetaFrame XP Presentation Server FR3
– Based on HP Color LaserJet 4500
– Added color printing capabilities at 600 dpi

Limitations of UPD I and II
• Printer device specific functions
– Limited form set & multi-tray support
– 600 dpi max resolution
– No access to duplex, stapling, and other
finishing options..
• Client prints page size, high-res images
– Large spool files on client (slows printing)
– Some memory constrained printers may not
handle large images
Result: Still might need other print drivers !!!

A Real World Dilemma
• Sacrifice Printer Functionality?
• Manage a complex printer driver environment?
• Purchase a 3rd party universal driver?
• Or will the user be able to print at all?

UPD v.3, Changing Your Strategy
• Ending headaches with “new printers”
• No more printer compatibility lists
• Eliminates the need to install standard drivers
– No more driver replication
– No more driver testing and certification
• Full printer functionality - any print device
• Full support for home users

Thinner, Faster, Better!
• Using Enhanced Metafile spool format
– Device independent
– No translation required on server
– Very efficient handling on client
• EMF UPD prints faster
– Prints two to four times faster
– Reduced overhead on both client and server

Manage device specific settings
Server side check box... ..opens a client side printer
properties dialog box.
Without the driver installed on the server!

Print Preview Application
• Client side application
– Handles printing of
EMF spool files
– Optional U/I to preview
printed pages on screen
– Print dialog support in
U/I allows
• Selective page printing
• Printing multiple times
• Rerouting the print job to
any other client printer

Presentation Server 4 Printing
- Under the Hood
• In-depth
– UPD printing performance
– Print data compression
– Client printer security
• Tips & tricks
– Customizing print environment
– Retained and restored client printers
– Troubleshooting

In-Depth –
Advanced Universal Printing
• EMF – Enhanced MetaFile
– Windows native graphics metafile format
– A recording of graphics GDI (DDI) calls
• Windows EMF spool file format
– Job header and document settings
– EMF records for each page
– Embedded fonts
• Win32 network print provider also spools EMF

In Depth –
Universal printing architecture
• Windows spool file is routed intact to the client
– GDI creating spool file
– CPPROC.DLL intercepts spool file
– CPMON.DLL routes spool
data to CPSVC.EXE
– CPSVC.EXE compresses and
sends to client
– WFICA32.EXE uncompresses
and writes to temp file
– CPVIEWER.EXE prints/previews job

0
100
200
300
400
500
600
Secs
DocA DocB DocC DocD
Time to print
UPD I
UPD II
UPD III
Std (PCL6)
Std (PS)
In Depth –
UPD Print Speed Improvement
Sample docs:
DocA – 12 pg mono text only
DocB – 15 pg MS Word white
paper w/logo, charts, & spot color
DocC – 8 pg PDF report with
logos, color, graphics, & fonts
DocD – 15 slide PPT with b/g
image & extensive graphics

In depth –
UPD Print Speed Improvement
Reasons:
• Server-side: No rendering to PCL
– EMF spool file sent directly to client
• ICA Client: No rasterization
– PCL  image translation avoided
– Much smaller client-side spool files
– EMFs handled very efficiently on client
New UPD prints 2-4x faster than the old !!!

0
50
100
150
200
250
300
350
KB
Raw MPS3 CPS4 CPS4 #2
DocA
UPD1 (PCL4)
UPD2 (PCL5)
UPD3 (EMF)
PCL6
Postscript
0
1000
2000
3000
4000
5000
KB
DocB
UPD1 (PCL4)
UPD2 (PCL5)
UPD3 (EMF)
PCL6
Postscript
0
5000
10000
15000
20000
25000
KB
DocD
UPD1 (PCL4)
UPD2 (PCL5)
UPD3 (EMF)
PCL6
Postscript
In depth –
Print data and compression
0
1000
2000
3000
4000
5000
KB
DocC
UPD1 (PCL4)
UPD2 (PCL5)
UPD3 (EMF)
PCL6
Postscript

In depth –
Client Printer Security
Default security descriptor:
• CpSvc account (Ctx_SmaUser)
– Ownership & full rights
• Login Session SID
– Full rights (almost)
• Admin group
– No rights by default !
– Registry override to give
administrators full access

Printing Customization –
Admin client printer permissions
• As needed
– Take ownership and adjust
permissions (may be scripted)
• Automatically
– Add registry key on server:
HKLMSoftwareCitrixPrint
– Add a REG_DWORD value
“DefaultPrnFlags”
– Set bit 0x00004000
Add admin group access for client printers:

Overriding other defaults
• DefaultPrnFlags bit flags
are documented in
Advanced Concepts Guide
(ACG)
• Examples:
– Enable UPD Preview on
client setting by default:
• Set bit 0x00008000
– To disable printer auto-
creation failure event log
entries:
• Set bit 0x08000000
– To enable generic UPD
printer auto-creation:
• Set bit 0x00000020

Generic UPD printer auto-creation
• Single session printer that can
print to any printer on the client
• Not bound to any specific client
printer
– Avoids capabilities and settings
exchange with client
– Generic settings only… no U/I
adjustment for printer capabilities
• Preview always enabled to:
– Select client printer for output
– Adjust device specific settings
Citrix UNIVERSAL printer in session xx

Retained client printers
• Users browse and connect
client printers not selected
by Auto-creation policy
• Connection is remembered
and printer is Auto-created
for subsequent logins
• Connection is forgotten if
session printer is deleted
• Relies on printer properties
retention mechanism
Users can self-provision their own client printers as needed

Restored client printers
• Admin or Power User
constructed print queues
attached to standard client
printer ports
• Printer definition and all
printer state are saved
during logout
• Printer is recreated during
subsequent logins
• Printer definition forgotten
when printer is deleted
Use any printer name, driver, print processor, special attributes, etc.

Tips and Tricks –
Limit printer creations
• Unnecessary printer creations hurt scalability and
may limit user density
• Consider turning down Auto-creation policy to
Default printer only or None plus
– Deploy generic UPD printer -or-
– Allow users to provision client printers as needed with
retained printers feature

Tips And Tricks –
Known issues and Hotfixes
• McAfee Enterprise 8.0i anti-virus
– File system filter driver prevents
spool file access on client
– CTX106698
• Embedded fonts (Acrobat v6/v7)
– Resolved in 9.1 client
• Recent hotfixes: PSE400W2K3015,
PSE400W2K013
– Resolve failure to set default printer
– Resolve potential CpSvc, Spooler,
UPD driver U/I traps

Tips and Tricks –
Troubleshooting Auto-creation
• CTX107137- Troubleshooting Printing
Problems In Presentation Server 4.0
• Client version:
– Avoid Tech Preview, EAP clients
– UPD III  must use 9.x client
• Citrix Print Manager service running ?
– CTX106661
• Ctx_SmaUser account have correct
permissions?
– CTX106629, CTX106393, CTX106683

Tips and Tricks –
Troubleshooting Auto-creation
• Examine Auto-creation failed events in the
event log
• Verify required drivers are installed and
– not excluded by driver compatibility list
– not remapped (client printers only)
• Try manual printer connection within session.
If success, examine policies
• When all else fails, use CDF to trace printer
creation process. Trace components:
– MF_Service_Cpsvc
– MF_DLL_Cpmon
– MF_DLL_Cpprov

Eschelon Telecom Inc. -
Advanced Universal
Printing Rollout
Dave Fiske
Citrix Architect
Eschelon Telecom, Inc.

Eschelon Telecom
Who are we and why Citrix?
• Telecommunications provider to 56,000+ customers
• Coverage in 8 states
• 1200 Employees
• Centralized IT Dept
http://www.eschelon.com
NASDAQ: ESCH

Eschelon Telecom
Citrix Server Overview
• Presentation Server 4
– 20 - Windows 2003
– 40 - Windows 2000
• Web Interface 3
– 3- Windows 2003 Web Ed
• Secure Gateway 2.0
– RSA keyfobs
• Server Specs
– HP Proliant BL20p
• Windows 2003
• 4 GB Memory
• 8 GB Pagefiles
• 2 x 3.6 Ghz
– Dell 1655r, 2550 and 2650
• Windows 2000
• 2 GB Memory
• 2 x 933 - 1.6 Ghz

Eschelon Telecom
Citrix Client Overview
• Client Specs
– Windows XP and 2000
Pro
– Mac OS X
– Wyse CE WBT Winterms
– ICA 6.x-9.x clients
– Internet Kiosks
– Java 9.x clients for
failback only
– Who knows what other
OS’s
• Printer Specs
– HP
– Canon
– Epson
– Xerox
– Dell
– Okidata
– Lexmark
– Who knows what else!!

Eschelon Telecom
Citrix Application Overview
• Published Applications
– 300+ Published Applications
• Nortel Access Care
• Metasolv TBS
• Onyx Employee Portal
• Microsoft Office 97/2000/2003
• Web Apps (IE 5.5, 6 and Netscape 4.72)
– 750+ Concurrent Users
– 2100+ Concurrent Sessions
• Published Desktops

Eschelon Telecom
Why we upgraded
• Printing, Printing, Printing
– Corporate Laser Printers
– Home legacy printers
– Home USB printers
– Multifunctional printers
• CPU Management
• Memory Management
• Isolation Environments
Why Presentation Server 4?

Eschelon Telecom
UPD Rollout - Phase I
• Create Active Directory Group
– CitrixPolicy UPD
• Create Citrix PS 4 Policy
– UPD_Only
– Set Priority high
• Migrate to 9.x client
How we implemented UPD III

Eschelon Telecom
UPD Rollout - Phase II
• Get all users on 9.x client
• Add servers to Citrix PS 4 UPD_Only Policy
• Remove AD Group from UPD_Only Policy
• Remove AD Group
• Add the disabling of print driver installation to UPD_Only
Policy!
Next Steps

Eschelon Telecom
UPD Benefits
• Helpdesk
• Citrix Administrators
• End Users
• Our Customers
Who benefits from UPD technology

Eschelon Telecom Inc.
Cost Analysis
• As with any project cost associated with upgrade
– What are the costs?
• Subscription Advantage
• IT Time plus end user testing time
– How did we justify spending the time since MPS3 was
working just fine?
• 96 field technicians x 1 hr/day x hourly rate = a lot of
money saved by the company each day
• Potentially serving more customers per day
• Techs can create a more logical route thus eliminating
excess road time

Eschelon Telecom
Issues with PS4
• One application won’t print with UPD
– Don’t allow UPD on the servers that host that application
• If something is broken it must be the upgrade right
and not a coincidence?
– Citrix Print Manager Service randomly hanging
• Figure out what printer is hanging this?
• Have to kill process and restart service
• Wasn’t a bad print driver but bad network segment to a
mapped printer
• Users couldn’t print to it from their clients either

Eschelon Telecom
End User Feedback
• Test users loved how fast printing was and that it worked
• Easy to install for the Home users
• One tech said he’d never give up the new printer ability

Upgrade Now to Citrix
Presentation Server 4.0!
• Compelling reasons
– Reduce or eliminate printing
help desk calls
– Improve document security
– Improve environment scalability
– Mobilize your workforce
– Increase functionality
It all adds up to $avings
and efficiency…

Technology Lab
• Learn first-hand how Citrix leads the
industry in access products that
deliver the best access experience.
• Located in Ballroom I
• Hours
– Monday, October 10
• 12:00 PM - 3:00 PM
– Tuesday, October 11
• 10:00 AM - 4:00 PM
• “Meet the Architects”
– Monday & Tuesday
• 1:00 PM – 3:00PM

Reminders
• Related breakout sessions:
– 2103: Upgrading to Citrix Presentation Server 4.0
– 2117: Control Connection Settings with Citrix
Presentation Server 4.0 Policies
• Session surveys are available online at
www.citrixiforum.com Tuesday, October 11
(please provide feedback)
• Breakout session handouts are located at the
Breakers Registration Desk South

2123.a better waytoprint.universal print

2123.a better waytoprint.universal print

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