Optimizing Printer Speed

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There are numerous factors that can affect print speed. The following list shows how to optimize these factors or influence them positively.

For Users: Designers/Projects

For Developers: Source-Code

  • Use the functions LlPrintIsVariableUsed() or LlPrintIsFieldUsed(), as well as LlGetUsedIdentifiers() (available starting with version 11), to minimize the load on your database engine.

  • In a release version of your application, LlSetDebug() should NOT be used. This would EXTREMELY slow down execution.

  • By avoiding special characters in variable names, you can disable the automatic checking and conversion routine via the LL_OPTION_XLATVARNAMES option, thereby eliminating unnecessary and frequent calculations. This is necessary for international use anyway.

  • Once the application has been completed and tested, List & Label’s parameter checking can be disabled using the LL_OPTION_NOPARAMETERCHECK option. This also saves valuable time by avoiding unnecessary checks.

  • If the size of the preview files (*.ll) is not an issue, compression of preview files can be disabled using the LL_OPTION_COMPRESSSTORAGE option.

  • If possible, the LL_OPTION_VARSCASESENSITIVE option should be set to 1.

  • Using the LL_OPTIONSTR_VARALIAS option, you can define an alias for potential localization during variable/field registration. However, this only affects the Designer session and has no benefit for printing or exporting; therefore, omitting this option for printing or exporting can increase the speed of data structure registration.

  • Utilizing the extended address space of a 64-bit application can contribute to an overall performance improvement under certain circumstances, such as when processing large amounts of data, etc. Providing a 64-bit build of the application allows you to take advantage not only of the larger amount of memory available to your application’s process but also of the associated performance gains.

  • Filtering/sorting in the data source: Handling Huge Amounts of Data in .NET.

  • For PDF export, specific factors can help improve speed: PDF Export: File Sizes and Optimizations.

  • Finally, you can use a log file created with Debwin4 to check exactly where a significant time difference is logged, in order to identify potential areas for improvement:

General Notes

  • Higher resolutions on laser printers can have a negative impact on print speed. Unless bitmaps are used, the print quality on many laser printers is virtually identical at lower resolutions.

  • Using PostScript printer drivers instead of LaserJet drivers can have a positive effect, as they are usually significantly faster.

  • Notes and options for using network printers: Printing on network printers.

  • If no physical printer is required and you only want to export the report, you can do without a printer driver entirely - see also: Printerless Mode in List & Label.

IDKBTE000573 KBTE000573
Druckgeschwindigkeit optimieren