PrintSpooler
Introduction
PrintSpooler is a system app preinstalled in OpenHarmony. It provides users with functions such as print preview, discovering and connecting printers, setting print parameters, issuing print tasks, and managing print tasks.
Architecture

Directory Structure
/applications/standard/print_spooler
├── figures # Architecture figures
├── entry # Main entry module code
├── signature # Certificate files
├── LICENSE # License files
├── features
├── ippPrint # ipp print