JSPrintManager is a client-side printing and scanning solution enabling web applications to bypass browser print dialogs by communicating with a native client application via WebSocket. The system consists of a core JavaScript library (JSPrintManager.js) that provides APIs for creating print/scan jobs, managing printer connections, and handling device-specific communication protocols (serial, USB, Bluetooth, TCP/IP, HID, IPP). A React-based demo application showcases features including printing various file formats (PDF, images, Office documents), raw printer command languages (ZPL, ESC/POS), bidirectional device communication, printer monitoring, and scanning functionality. The solution requires installation of a lightweight native client on user machines to establish the WebSocket bridge between browser and hardware devices.
This repository provides a Vue 3 plugin for printing HTML elements. The plugin allows developers to specify an element to print, apply custom styles, and control print window behavior. The core logic is implemented in src/index.js, which creates a new window, injects the element's HTML and styles, and triggers the print dialog. The plugin handles options merging, browser compatibility (including IE conditional comments), and provides callbacks for post-print actions. While the core functionality is sound and demonstrates skill in handling browser printing quirks, the build dependencies are outdated, indicating some technical drift in the development toolchain.