System Printer vs PC3 in AutoCAD: Which Should You Use?
A system printer is the operating-system queue. A PC3 is an AutoCAD configuration that can wrap a device with CAD-specific settings. You do not automatically need a PC3 for every printer.
Start here — what you are going to do
Your goal: Choose the simplest controlled device method for your workflow.
Where to start: Ctrl+P > Printer/Plotter > Name.
Beginner rule: Follow the steps in order. Do not change several plotting settings at once. After an important change, use Preview or make one test output before continuing.
Step by step — follow this in AutoCAD
Step 1 — Open the device list
Where: Ctrl+P > Printer/Plotter > Name.
Do this: Identify system-printer names and entries ending .pc3.
Check: You can see both types.
Step 2 — Test the system printer directly
Where: Choose a working system printer and supported paper.
Do this: Preview/test one sheet.
Check: You know whether direct output already meets the need.
Step 3 — Inspect an office PC3
Where: PLOTTERMANAGER > double-click PC3.
Do this: Read what device/settings it adds.
Check: You understand why the PC3 exists.
Step 4 — Choose PC3 only when it adds useful CAD configuration
Where: Use it for controlled device/media/custom settings when required.
Do this: Avoid unnecessary near-duplicate PC3s.
Check: The configuration has a purpose.
Step 5 — Use a named Page Setup either way
Where: Page Setup Manager.
Do this: Store the chosen device and paper in an understandable named setup.
Check: Beginners do not have to guess device names.
Step 6 — Test on another workstation
Where: Use the approved workflow elsewhere.
Do this: Check driver/queue/paper/support dependencies.
Check: The standard is reproducible.
Beginner example
A small office printer works fine when selected directly as a Windows system printer. A large-format workflow needs custom AutoCAD settings and standardized paper definitions, so the office may choose an approved PC3 instead.
Understand what AutoCAD is doing
A system printer is managed primarily by the operating system
If you select the Windows printer directly in AutoCAD, device capabilities and paper definitions come through the installed printer driver.
A PC3 adds an AutoCAD configuration layer
A PC3 Files Explained can make office settings easier to standardize, but it may still depend on that same underlying printer/driver.
Use the simplest reliable option
For a straightforward office printer, the system device may be enough. Use a PC3 when you need repeatable AutoCAD-specific settings, custom media, ports or documented office configurations.
Useful next guides: Choose a Printer or Plotter · PC3 Files Explained · Add a Printer or Plotter · Plotter Manager
Common problems and what to check first
| What you see | What may be causing it | Check this first |
|---|---|---|
| PC3 exists but will not plot | Underlying printer/driver/port is unavailable | Open the PC3 and verify what device or port it uses. |
| Custom paper disappeared | PC3/PMP/driver differs | Compare the full working configuration, including any attached PMP or custom media. |
| Works on old workstation only | Environment dependencies changed | Compare OS printer, queue name, driver and AutoCAD configuration files. |
| New plotter appears but paper is wrong | Configuration was not tested with real media | Open a known Layout, choose the new device and verify its actual paper list. |
When you need a more repeatable workflow
Once this basic method works, stop rebuilding the same settings by hand. Save the proven choices in a named Page Setup for Beginners, use a prepared Layout when the sheet is recurring, lock any production viewport, and keep one verified PDF or physical plot as a reference. For larger drawing sets, move toward Sheet Set Manager or publishing rather than repeating a manual Plot operation on every sheet.
Official Autodesk references
Menus and device-specific options can vary by AutoCAD release, workspace and configured printer. These Autodesk pages are the primary references used for the workflow above.
Frequently asked questions
What is the difference between a PC3 and a printer driver?
The driver or system printer provides the operating-system device layer. A PC3 is an AutoCAD plotter configuration that can reference that device and store additional AutoCAD-specific settings.
Can I copy a PC3 to another computer?
Often, but the target computer still needs compatible underlying devices, drivers, queues and any dependent files. Always test the copied configuration.
When does PMP matter?
PMP becomes relevant when calibration or custom paper/media information is attached to a PC3. Many ordinary plotting problems should be checked at the device and PC3 level first.
Explore more in AutoCAD Printing & Plotting Guide.