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ITS Printing Services

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  1. ITS Printing Services 25 January, 2006 Chris Sacksteder, cjs@psu.edu http://clc.its.psu.edu/About/Presentations/NWOP200601

  2. Agenda • Who • Why • Whatwas done, needs to be done • How does existing system work • When can you sign up • Questions, Comments, Discussion ITS Printing Services

  3. Who ITS Printing Services Working Group Committee formed August 2005 to propose a chargeback printing service. Members • CLC • Chris Sacksteder • John Cripe • ASET • Phil Pishioneri • Mark Campbell • Greta Armstrong • Jerry Mihaly • Robyn Wang ITS Printing Services

  4. Why • Many units have long wanted to charge for or limit student printing(often more for printing control rather than cost recovery) • One campus and a couple departments at UP have been supported for a while(kinda unofficial) • Things change (d) when PSU Gina is (was) removed(oops) ITS Printing Services

  5. What . . . . . . has been done: • Defined service requirements • Listed and understood all the components • Examined possible services • Researched technical questions • Developed software . . . needs to be done: • Implement prototypes • Propose exact ITS services • Finish software development ITS Printing Services

  6. Service Requirements Definite: • Printing is securea user can't easily tag a print job with someone else's userid • Chargeback is through the bursarstudents only, for now • Accommodates students' "free pages" and limitswhen they have not agreed to billed for printing via a signature station • Credits can be requested for spoiled jobs or jobs that did not printprocess needs to be efficient ITS Printing Services

  7. Service Requirements Maybe: • Notification to user's workstation when the print job is done • Web page to query user status(free pages remaining, jobs printed, etc.) • Redundant print servers(automatic failover) • Queue management • Remote printing(not a CLC service yet) ITS Printing Services

  8. CLC Printing Components The committee decided to use our existing system rather than buying or building a new system. Components that go into this system include: • Printers and Print Servers • acquisition: buying and replacing the hardware • network: acquiring a network interface • installation: connecting them to a network, defining printer and print queues on server • maintenance: buying and refilling paper and toner; fixing broken printers or servers; updating OS or firmware ITS Printing Services

  9. CLC Printing Components (cont.) • Printing Methods • LPR and SMB (domain credentials with the latter) • authentication (Uniprint exits and PALS) • authorization (Uniprint exits and PALS) • queue balancing (Uniprint) • page counting (Uniprint) • user notification (Uniprint and UpdtServ on Windows, "Uniprint" on Macs) ITS Printing Services

  10. CLC Printing Components (cont.) • Queue Management • reassign queues to different servers • dynamic configuration of clients • User Information • web page to query status, job, and page count • web page to show print jobs and credits (under consideration) ITS Printing Services

  11. CLC Printing Components (cont.) Limits and Billing • signature stations, agree to billing flag (Cactus, Pals) (may move this off signature stations) • prepaid pages (manual, PalsDB client) • free pages, extra free pages (Pals) • page limits (Pals and Uniprint exits) • billing (Pals, Cactus, Bursar) • note: the bursar will take a % of printing income for "new" services • page credits (web form; manual data entry into Cactus and Pals; planned to be streamlined) • print charges (rates) have to be approved by the controller's office ITS Printing Services

  12. Research Questions Printing from access.psu.edu or domains with trust to dce.psu.edu • Can users logged into a computer with a dce.psu.edu\<userid> account connect to and print to printers in the labs.win.psu.edu domain? • From an OU in access.psu.edu: YES • From a child domain under access.psu.edu: YES • From a third forest with a trust to dce.psu.edu: YES • All shadow accounts in win.psu.edu have been set with name mappings for dce.psu.edu ITS Printing Services

  13. Software Development • PALS: new verb SDATA for login and logout records • multiple keys needed for a secure signature • still lightweight • done and in production! • New client code • PSUWinlogonEvents: done • Macintosh OS 10 “Pals”: in production • Linux: tbd ITS Printing Services

  14. Software Development (cont.) • PALS: move user data to SQL server • IP addresses: who is logged in where • Users: jobs, pages, limits • Add credit data • Print job data • Distributed, disconnected model: database transactions all asynchronous • Need 100% up time ITS Printing Services

  15. Service Scenarios Many possibilities; a limited set needs to be defined, e.g.: • For departments at UP: Department buys the first printer; CLC runs servers and printers, printers are treated like lab printers and CLC gets any income. • easiest • not necessarily appropriate • Campus: CLC runs the Uniprint database, campus staff run the printer servers and printers; they get the money. • need skilled staff at location • need to distribute and maintain Uniprint exits ITS Printing Services

  16. Service Scenarios (cont.) But in all likelihood: • Printing will be controlled with Pals • We will provide for credit requests • We will send data to Cactus • Cactus will send data to the bursar • Bursar will add charges to the students’ accounts ITS Printing Services

  17. Pharos Uniprint Licensing • UP site license covers all at UP • Additional locations: $$$$$ • ITS Computer Store is working on it • What is it worth to you? ITS Printing Services

  18. When? • Prototype with College of Communications Lab . . . now • Convert Harrisburg this summer (?) • Test with other locations this summer (?) • Target Fall Semester 2006 (?) ITS Printing Services

  19. Now . . . • If you are interested in chargeback for color printing . . . • . . . and no rate is set . . . • HP Color LaserJet ($0.15, $0.30) • Epson 4000 ($1.75, $3.50) • http://clc.its.psu.edu/Printing/Limits/ • Start collecting data now on consumables and begin the process for getting a rate established ITS Printing Services

  20. Agenda • Who • Why • Whatwas done, needs to be done • How does existing system work • When can you sign up • Questions, Comments, Discussion ITS Printing Services

  21. Questions? Comments? Chris Sacksteder,cjs@psu.edu http://clc.its.psu.edu/About/Presentations/NWOP200601 Lab Use Data Presentation ITS Printing Services