Differences between revisions 38 and 71 (spanning 33 versions)

Contents

Linux printing

Linux printing

General information

The printing system at ETH is known as "PIA", Print service of Informatikdienste for All
General information about PIA provided by Informatikdienste (ID)
Overview of personal print jobs and costs

Available print servers

There are different print servers providing print queues for different geographical locations:

pia01.ethz.ch for ETH center buildings
pia02.ethz.ch for ETH Hönggerberg

Stored credentials (see below) will contain the name of the print server.

Available printers

Printers are named and labelled following the scheme "p-building-floor-room", as for example "p-etf-d-104"
The pull printing queue is named "card-ethz" (Nashuatec printers) or "card-hp" for the newer HP printers. It allows releasing a print job on any printer fitted with a card reader by holding a ETH card to the sensor labelled "ETH CARD".
Printers in buildings ETF, ETL, ETZ and HIA are available from Linux clients managed by ISG D-ITET

Storing credentials for authenticated printing

In order to track usage and manage costs every print job needs to be submitted with personal ETH network credentials. The following process describes storing your credentials for automatic submission with every print job.

Open a console
Enter system-config-printer to open "Print Settings"
Double-click the printer card-ethz or card-hp
In the appearing window "Printer Properties" press the button Print Test Page
Enter your username including the domain d\
Tick the check box labelled Remember password to store your credentials
Confirm the dialog by pressing the button OK
In case of wrong credentials the dialog will simply reappear without warning about the fact
Press Print Test Page again, now the dialog asking for credentials should not reappear

Verifying stored credentials

Open a console
Enter seahorse to open "Passwords and Keys"
Verify any entry similar to the one below in your keyring named "Login"

Setting the default printer

Open a console
Enter system-config-printer to open "Print Settings"
Find the desired printer by entering parts of its name into the Filter field
Double-click the printer you want to set as the default printer
Close the appearing "Printer Properties" window by pressing the button Cancel

Now the "Set As Default" menu entry used below will be available
Right-click the printer you want to set as the default printer
Select the menu entry Set As Default
Check Set as my personal printer and confirm by pressing Ok
The default printer is now marked with a heart

Troubleshooting

I've printed something, but it didn't come out of the printer.

Check your local printer queue. Start system-config-printer in your console and right-click -> View Print Queue on the printer/queue you've selected previously. If your job's hanging here, try right-click -> Release. If the desired jobs isn't listed in the queue, check Papercut for errors regarding your print-job. If you can't find any problem, please contact ISG D-ITET Support <support AT ee DOT ethzDOT ch>.

After sending the print job, the printer flashes a red LED and says: Paper size and type mismatched

The Paper type "Recycled" isn't recognized correctly. Use the type "Plain/Recycled".

I've changed my NETHZ password. How can I change the password in the keyring?

After a change of your NETHZ password, you have to re-enter your password on your next print-out. The safest way to do so is to follow Storing credentials for authenticated printing again.

I've started `system-config-printer` but no printers are available.

This probably means the cups service has crashed and can't recover itself. Restart your computer or contact ISG D-ITET Support <support AT ee DOT ethzDOT ch>.

Printouts out of the firefox PDF preview look different from what I see on the screen

The firefox PDF preview is not compatible with our system. Please download the pdf and print it using a PDF viewer. (e.g evince)

The Application (e.g Firefox) crashes when I try to save the password in the keyring.

Please follow Storing credentials for authenticated printing .

After I filled in the authentication popup, there appears another popup that makes the whole display darker and asks about a password for the Gnome Keyring. My NETHZ password doesn’t work!

Open a console and type the command “seahorse”. A Gnome Keyring management tool appears. Delete the “Login “ keyring in the top left corner and log out of your current session. After another login, the authentication process should work.

Print jobs take very long to process/ print out when printing from Firefox

Please download the file and open it with the native document viewer (evince).

A PDF printed from Google Chrome didn't come out of the printer.

Save the pdf, open it with the native document viewer and print it.

OFFENDING COMMAND: setpagedevice

This error often occurs when the document page size doesn't match the printer's paper size. Try to scale the document to a paper size available in the printer and try again.

-  ⇤ ← Revision 38 as of 2016-01-12 07:45:04 → 
  Size: 6864
  Editor: bonaccos
  Comment:
+   ← Revision 71 as of 2023-12-20 12:34:07 → ⇥
  Size: 6252
  Editor: pmeier
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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+#rev 2020-09-11 stroth
#rev 2018-10-30 stroth
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-= Linux =
+= Linux printing =
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+Line 7:
-Printing on the Linux-based Workstations has changed a lot from Debian Wheezy to Debian Jessie. At the moment we support both of the printing systems available at the ETH. The old VPP printing system with mostly Xerox printers as well as the new PIA/Nashuatec printers connected via samba. In the future, the VPP system will go end of life and the old printers will be replaced with new Nashuatec printers.
+== General information ==
 * The printing system at ETH is known as "PIA", __P__rint service of __I__nformatikdienste for __A__ll
 * [[https://printing.sp.ethz.ch|General information about PIA]] provided by Informatikdienste (ID)
 * [[https://print.ethz.ch/|Overview of personal print jobs and costs]]
-Line 7:
+Line 12:
-As we did a complete rework of the printing accessibility, there are some significant changes for the users. The main difference is that every client runs it's own CUPS (printserver) instead of connecting to the former central printserver (ipp2vpp.ee.ethz.ch). As a consequence of that, you can now print out of any application which supports CUPS printing.
+== Available print servers ==
There are different print servers providing print queues for different geographical locations:
 * [[https://pia01.d.ethz.ch/printers/ipp_0001.asp?startid=1&endid=9999|pia01.ethz.ch]] for ETH center buildings
 * [[https://pia02.d.ethz.ch/printers/ipp_0001.asp?startid=1&endid=9999|pia02.ethz.ch]] for ETH Hönggerberg
Stored credentials (see below) will contain the name of the print server.
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+Line 18:
-Although you can't see any difference in the list of printers between the VPP and the PIA printers (except of the name: PIA printers start with "p-"), there are some substantial differences in the background which have to be concerned. More about that in the system-specific paragraphs below.
+== Available printers ==
 * Printers are named and labelled following the scheme "p-building-floor-room", as for example "p-etf-d-104"
 * The pull printing queue is named "card-ethz" (Nashuatec printers) or "card-hp" for the newer HP printers. It allows releasing a print job on any printer fitted with a card reader by holding a ETH card to the sensor labelled "ETH CARD".
 * Printers in buildings ETF, ETL, ETZ and HIA are available from Linux clients managed by ISG D-ITET
-Line 11:
+Line 23:
-== VPP ==
On one hand, there are is the old VPP printing system which already worked on Debian Wheezy machines. Unlike as on Debian Wheezy machines, you won't have to print over LPR/GTKLP anymore. It's possible to print on VPP printers using the printing dialogs of any applications which supports the CUPS printing now. For the reason of clarity we installed only the printers in the ET and the HIA area. If there is a need for more printers, please contact ISG.EE <support@ee.ethz.ch> with an explanation why it's needed. The website http://www.vppspy.ethz.ch/tools/vpplist.php provides a list of all currently available printers including printing logs for the last days.
+<<Anchor(authenticated-printing)>>,
== Storing credentials for authenticated printing ==
In order to track usage and manage costs every print job needs to be submitted with personal ETH network credentials. The following process describes storing your credentials for automatic submission with every print job.
-Line 14:
+Line 27:
-== PIA ==
On the other hand, there is the new PIA printing system. General information about the system are available here: [[https://www1.ethz.ch/id/services/list/print_service/index]]. Since the upgrade of our managed clients to Debian Jessie, all the PIA printers of the ET and HIA area are installed by default. They are listed at the end of the printer list, as their labeled with a "p-" prefix. Additionally the PIA system offers a PULL-queue named "card-ethz". Print-jobs that were sent on this queue, can be printed out at any PIA printer which provides a card reader using your legi.
+. Open a console
 1. Enter `system-config-printer` to open "Print Settings"
 1. Double-click the printer '''card-ethz''' or '''card-hp'''<<BR>> {{attachment:01_card-ethz.png}}
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+Line 31:
-As these PIA printers require an authentication every time a print-job is sent, we have implemented a password saving solution that includes the gnome keyring. The keyring (as long as your keyring has the same password as your NETHZ account) will be unlocked at login and allows you to print without any further authentication in your everyday life. This solution requires some initial steps to work properly. Please consult the following instructions to do so.
+. In the appearing window "Printer Properties" press the button '''Print Test Page'''<<BR>>{{attachment:02_print-test-page.png}}
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+Line 33:
-At the moment, students have only limited access to these printers. Currently the only way a student gets credit for the new printers is that an employee transfers it to the student. (https://www1.ethz.ch/id/services/list/print_service/geld)
+. Enter your username including the domain '''d\'''
 1. Tick the check box labelled '''Remember password''' to store your credentials
 1. Confirm the dialog by pressing the button '''OK'''<<BR>>In case of wrong credentials the dialog will simply reappear without warning about the fact<<BR>>{{attachment:03_authentication_required.png}}
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+Line 37:
-=== Initial steps to save the password for PIA printers ===
+. Press '''Print Test Page''' again, now the dialog asking for credentials should not reappear
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+Line 39:
-In theory, it should be possible to save to password at any time a print-job is sent from any application. A password dialog appears and with the correct credentials, the password should be saved without a problem. Sadly there is a bug in one of the printing dialogs that causes the printing application to crash. Fortunately there is a simple initial task flow to avoid these crashes:
+== Verifying stored credentials ==
 1. Open a console
 1. Enter `seahorse` to open "Passwords and Keys"
 1. Verify any entry similar to the one below in your keyring named "Login"<<BR>>{{attachment:04_verify_password.png}}
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+Line 44:
-. Open a console.
 1. type `system-config-printer` to open the printing management.
 1. Double-click on the printer '''card-ethz'''.
 {{attachment:system-config-printer_1.png}}
 1. Press '''Print Test Page'''
 {{attachment:system-config-printer_2.png}}
 1. Enter your NETHZ credentials as described. The domain '''d\''' before the username and the tick in the check box are necessary. This dialog doesn't throw any errors if you enter the wrong credentials. It will simply pop up again.
 {{attachment:system-config-printer_3_1.png}}
 1. Press '''Print Test Page''' again. If the dialog didn't pop up again, you have successfully saved the password in the keyring. 
 1. To be sure, you can verify the process with the instructions in the chapter '''Verifying the Keyring'''.
+== Setting the default printer ==
 1. Open a console
 1. Enter `system-config-printer` to open "Print Settings"
 1. Find the desired printer by entering parts of its name into the '''Filter''' field
 1. Double-click the printer you want to set as the default printer<<BR>>{{attachment:05_find-default-printer.png}}
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+Line 50:
-=== Verifying the Keyring ===
+. Close the appearing "Printer Properties" window by pressing the button '''Cancel'''<<BR>>{{attachment:06_activate-for-default.png}}<<BR>>Now the "Set As Default" menu entry used below will be available
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+Line 52:
-. At first, open a terminal and type `seahorse`. That's a tool to get an overview of your saved passwords. If there is an entry like on the screen shot, your password has been saved successfully.
 {{attachment:seahorse.png}}
 1. Next, open firefox and try to print on either the card-ethz PULL-queue or any of the pia printers ( p-et* ). The print-job should be sent without any further dialog popping up.
 1. To finish the verification, head to a PIA/Nashuatec printer in your area and hold your ETH card/legi on the marked area on the printer. The previously send test pages should now appear on the display. Pressing the '''Print All''' button will release the jobs.
+. Right-click the printer you want to set as the default printer
 1. Select the menu entry '''Set As Default'''<<BR>>{{attachment:07_set-as-default.png}}
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+Line 55:
-If all these steps went well, your password has been saved successfully and your printing system is installed correctly. If any of these steps fails, try the '''Initial steps to save the password for PIA printers''' or contact ISG.EE Support at <support@ee.ethz.ch>.
+. Check '''Set as my personal printer''' and confirm by pressing '''Ok'''<<BR>>{{attachment:08_set-default-printer.png}}
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+Line 57:
-=== TODO: NETHZ PASSWORD CHANGE ===
+. The default printer is now marked with a heart<<BR>>{{attachment:09_have-default-set.png}}
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+Line 59:
-. todo
+== Troubleshooting ==
-Line 49:
+Line 61:
-=== Troubleshooting ===
+=== I've printed something, but it didn't come out of the printer. ===
Check your local printer queue. Start `system-config-printer` in your console and right-click -> ''View Print Queue'' on the printer/queue you've selected previously. If your job's hanging here, try right-click -> ''Release''. If the desired jobs isn't listed in the queue, check [[https://www.print.ethz.ch|Papercut]] for errors regarding your print-job. If you can't find any problem, please contact <<MailTo(support AT ee DOT ethzDOT ch, "ISG D-ITET Support")>>.
-Line 51:
+Line 64:
-==== Problem: I've printed something, but it didn't come out of the printer. ====
+=== After sending the print job, the printer flashes a red LED and says: Paper size and type mismatched ===
The Paper type "Recycled" isn't recognized correctly. Use the type "Plain/Recycled".
-Line 53:
+Line 67:
-Solution: First, you can check your local printer queue. Start `system-config-printer` in your console and right-click -> ''View Print Queue'' on the printer/queue you've selected previously. If your job's hanging here, try right-click -> ''Release''. If the desired jobs isn't listed in the queue, check https://www.vppspy.ethz.ch (VPP) or https://www.print.ethz.ch (PIA) for errors in regarding your print-job. If you can't find any problem, please contact ISG.EE Support <support@ee.ethz.ch>.
+=== I've changed my NETHZ password. How can I change the password in the keyring? ===
After a change of your NETHZ password, you have to re-enter your password on your next print-out. The safest way to do so is to follow   [[#authenticated-printing|Storing credentials for authenticated printing]]  again.
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+Line 70:
-==== Problem: I've started `system-config-printer` but no printers are available. ====
+=== I've started `system-config-printer` but no printers are available. ===
This probably means the cups service has crashed and can't recover itself. Restart your computer or contact <<MailTo(support AT ee DOT ethzDOT ch, "ISG D-ITET Support")>>.
-Line 57:
+Line 73:
-Solution: This probably means the cups service has crashed and can't recover itself. Restart your computer or contact ISG.EE support <support@ee.ethz.ch>
+=== Printouts out of the firefox PDF preview look different from what I see on the screen ===
The firefox PDF preview is not compatible with our system. Please download the pdf and print it using a PDF viewer. (e.g evince)
-Line 59:
+Line 76:
-==== Problem: The tick in the check box of the password saving dialog disappears every time i press it. (probably XFCE) ====
+=== The Application (e.g Firefox) crashes when I try to save the password in the keyring. ===
Please follow  [[#authenticated-printing|Storing credentials for authenticated printing]] .
-Line 61:
+Line 79:
-Solution: This is only a visual error. Press the check box once, and it will save the password.
+=== After I filled in the authentication popup, there appears another popup that makes the whole display darker and asks about a password for the Gnome Keyring. My NETHZ password doesn’t work! ===
Open a console and type the command “seahorse”. A Gnome Keyring management tool appears. Delete the “Login “ keyring in the top left corner and log out of your current session. After another login, the authentication process should work.
-Line 63:
+Line 82:
-==== Problem: Printouts out of the firefox PDF preview look messed up ====
+=== Print jobs take very long to process/ print out when printing from Firefox ===
Please download the file and open it with the native document viewer (evince).
-Line 65:
+Line 85:
-Solution: The firefox PDF preview is not compatible with our system. Please download the pdf and print it using a PDF viewer. (e.g evince)
+=== A PDF printed from Google Chrome didn't come out of the printer. ===
Save the pdf, open it with the native document viewer and print it.
-Line 67:
+Line 88:
-==== Problem: The Application (e.g Firefox) crashes when I try to save the password in the keyring. ====

Solution: Please follow the '''Initial steps to save the password for PIA printers'''.
+=== OFFENDING COMMAND: setpagedevice ===
This error often occurs when the document page size doesn't match the printer's paper size. Try to scale the document to a paper size available in the printer and try again.

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