Setting this policy configure enterprise printers. Its format matches the Printers dictionary, with an additional required "id" or "guid" field for each printer for allow listing or deny listing. The file size can't exceed 5MB and is in JSON format. A file with about 21,000 printers encodes as a 5MB file. The cryptographic hash helps verify download integrity. The file is downloaded, cached, and redownloaded when the URL or the hash changes. Google Chrome OS downloads the file for printer configurations and makes printers available along with PrintersBulkAccessMode, PrintersBulkAllowlist, and PrintersBulkBlocklist.
This policy has no effect on whether users can configure printers on individual devices. It is intended to be supplementary to the configuration of printers by individual users.
If you set the policy, users can't change it.
See https://cloud.google.com/docs/chrome-enterprise/policies/?policy=PrintersBulkConfiguration for more information about schema and formatting.