Question eric’s computer slows down when he opens several computer programs. why does this happen?

There are a number of problems you might encounter in the course of installing and using PaperCut NG/MF. Many are resolved once you get a better idea of how PaperCut NG/MF works, while others might require you to dig deeper into the application's workings.

The following list has been compiled over the course of years of PaperCut NG/MF usage. If you can't find a reference to the problem you're having here, try looking in the Knowledge Base at the PaperCut NG/MF website.

In addition to this section, there are more product and feature-targeted FAQs here:

PaperCut NG/MF is not counting/detecting pages correctly. What's causing this?

PaperCut NG/MF currently supports about 90% of printers on the market. If a printer's language is not recognized, PaperCut NG/MF cannot detect any pages and record the print job as a zero page count. This is usually accompanied with an error message in the Application Event Log. We recommend you try the following problem resolution actions:

  1. Many printers come with a variety of driver options. Install the Postscript drivers if one is available for the printer. Do this on both the print server and all network clients.

  2. Try the drivers included with the Windows CD. PaperCut NG/MF supports the majority of drivers distributed with recent Windows releases.

  3. Try turning Enable advanced printing features as follows:

    1. On the print server, select Start > Settings > Printers.

    2. Right-click the printer; then select Properties

    3. Select the Advanced Tab.

    4. Turn off (disable) the Enable advanced printing features.

    For more information, see Knowledge Base.

  4. If you're still having problems, email PaperCut Software support. We might be able to recommend a suitable set up or even supply a recent update supporting your hardware.

  5. Specific information on printer compatibility is available in the PaperCut NG/MF Knowledge Base. Information here might be of assistance.

The system is not displaying the correct currency sign.

PaperCut NG/MF formats the currency based off the operating system's default regional settings. If the default regional settings are incorrect, you can change the format by defining your location under Options > General > Display Settings > Location .

The client software is not displaying the user's account balance and is displaying a network error. How do I fix this?

The client software needs to contact the Application ServerAn Application Server is the primary server program responsible for providing the PaperCut user interface, storing data, and providing services to users. PaperCut uses the Application Server to manage user and account information, manage printers, calculate print costs, provide a web browser interface to administrators and end users, and much more.. For the technical readers, the client makes an XML web servicesWeb services are a standardized way of integrating Web-based applications using the XML, SOAP, WSDL and UDDI open standards over an Internet protocol backbone. request to the server on port 9191. Most problems relate to either firewalls blocking access or the Application Server's name is not correctly defined. Ensure that:

  1. Any firewalling software on the server allows local network access to port 9191.

  2. The client.properties file (a text file) lists the correct server name or IP address of the server. If you've used the zero-install deployment option, this file is located on the server in the directory: [app-path]/client/client.properties

How do I change the built-in admin user's password?

The admin user's password is set up on initial install during the configuration wizard. You can change this password post-install:

  1. Select Options > Advanced. The Advanced page is displayed.

  2. In the Reset admin password area, select the Change internal admin password check box.

If you have forgotten the internal admin password, you can reset it by editing the admin.password property in the following text file:

[app_dir]/server/server.properties

I run a small peer-to-peer network and my users don't log onto the workstations. Can I still use PaperCut NG/MF?

PaperCut NG/MF is primarily designed for networks managed under a domain and/or authenticated environments. Peer-to-peer networks or Workgroups are, however, supported. The first option to consider is requiring users to log onto the workstations using their username and password. If this is not possible, an alternate option is to set up the user accounts on system hosting the printers (system running the PaperCut NG/MF server software) and configuring the account selection popup with the Charge to other users option selected. Users can then enter their username and password in the popup that displays each time they print.

How do I stop users from closing/shutting down the client software?

If the user running the client software is configured to either:

  • select shared accounts

  • confirm the print job via a popup

the client software must be running at all times. If the user is configured in either of these modes, the client software's exit option is disabled. Note: Restart the client software to pick up this option after the user's options have been changed.

Why does PaperCut NG/MF cache the group membership?

PaperCut NG/MF caches group membership by replicating the user/group relationship structure internally in the system. Typically network group membership is relatively static, and is usually set up when a user account is initially created. PaperCut NG/MF tries to be a good network application by avoiding common no-no's such as flooding domain controllers with group lookup requests. This is achieved by caching. Operations such as Bulk user operations, quota allocations, group reports and group filtering all need to do group membership lookups. Caching speeds up these operations and prevents excessive callouts to the domain servers.

The downside to caching is that group membership changes are not immediately reflected inside PaperCut NG/MF. To force PaperCut NG/MF to detect the change, perform a user/group synchronization:

  1. Select Options > User/Group Sync.

    The User/Group Sync page is displayed.

  2. Click Synchronize Now.

    The system also automatically refreshes group membership overnight during low network activity.

What is the internal database format?

PaperCut NG/MF's internal database is Apache Derby - an open source database written by IBM and based on IBM's DB2 Cloudscape database system. The internal database has proven to scale very well and is suitable for networks of all sizes.

What language is PaperCut NG/MF developed in?

PaperCut NG/MF is developed under a number of languages and development environments. The printer monitoring component and other native operating system interfaces such as user authentication are written in C/C++. The Application Server and web services are written in server-side Java.

I want to investigate server cluster support?

The PaperCut NG/MF is designed as a cluster compatible application and supports clusteringClustering allows your organisation to ensure your services are not affected if anything should happen to your main server. PaperCut is a cluster compatible application and is supported under Windows (Microsoft Cluster Server / MSCS, Microsoft Failover Cluster Manager / MSFCM, Vetitas Cluster Server / VCS) and Linux (Novell Cluster Services / NCS, Linux-HA) at all levels of the application, including: clustering at the print spooler service layer by integrating with clustering services, failover based clustering at the Application Server layer using clustering services, and at the database layer by utilising cluster aware databases such as Microsoft SQL Server, PostgreSQL, or Oracle. at all layers of the application. For more information on configuring PaperCut NG/MF in a Microsoft Cluster environment, see Clustering and high availability. If you want to investigate clustering options on other platforms (Linux), contact our support team.

Share your findings and experience with other PaperCut users. Feel free to add comments and suggestions about this Knowledge Base article. Please don't use this for support requests.

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