## Printer Device Driver

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### Feature ID Section

This section contains all the unique IDs that can reference unique printer models and specific features of individual printer models.

If two different printer models have the same capability, they can reference the same ID, such as printers within a printer "family" that support the same paper sizes, trays, and so on.

Once a feature ID has been added and shipped with a printer, do not change it. This could cause cross-network printing to fail. For example, two different versions of the same printer drivers must use the same feature ID on both networked systems to successfully communicate.

Each group of IDs should have the default option for that group assigned the ID == 0 (zero). This helps the core driver to fail invalid IDs and to pick 0 (zero) as a default fallback in an emergency. Proceed to the following sections for a description of the feature IDs:

Printer Model IDs
Print Qualitiy IDs
Print Mode IDs
Device Font IDs
Paper Tray IDs
Form Size IDs
Media Type IDs
Form Connection IDs