Epson SureColor T3770/T5770/T7770 for AutoCAD: Production CAD Plotting
Epson's production-class SureColor T3770/T5770/T7770 family spans 24-, 36- and 44-inch technical printing, with dual-roll and PostScript/embedded print-engine options on selected models. AutoCAD workflows should explicitly choose the rendering path and media source.
Beginner takeaway: Production features create choices; CAD management should reduce those choices to a small tested standard.
Where this family fits in CAD plotting
T3770/T5770/T7770-class production devices fit offices that need 24-, 36- or 44-inch output with more roll and rendering choices. If Raster and PostScript queues are available, treat them as separate tested output paths and give each a clear Page Setup name.
- Epson lists T3770 24-inch, T5770 36-inch and T7770 44-inch production models.
- The production line includes single- and dual-roll configurations.
- Epson support for models such as T7770D includes raster and PostScript driver packages; PostScript availability depends on the model/configuration.
What matters in AutoCAD
- Name Page Setups by output path if the office uses both Raster and PostScript queues.
- Define dual-roll source rules before using PUBLISH.
- Use one calibration sheet to compare raster and PostScript linework, raster images, fonts and transparency.
Related CADPlotting guides: Epson SureColor CAD Printing Guide, How to Publish a Sheet Set to a Physical Plotter, and Large-Format Plotter Uses the Wrong Roll or Paper Source.
Beginner setup: create one reliable AutoCAD test Layout
Step 1 — Install the manufacturer driver first
Where: Epson support site / operating-system printer settings
Do this: Install the driver intended for the exact device and operating system. Confirm the printer works outside AutoCAD before building a PC3.
Check: A test page or manufacturer utility can reach the device.
Step 2 — Open one AutoCAD Layout
Where: Layout tab > PAGESETUP > Modify
Do this: Select the system printer or approved PC3, then choose the real paper/roll size used for the test.
Check: The intended media is visible and the orientation matches the title block.
Step 3 — Keep the sheet at real paper size
Where: PAGESETUP > Plot Area / Plot Scale
Do this: For a prepared Layout, use the Layout workflow and keep the paper output at 1:1. Let viewport scale control the model view.
Check: Plot Preview shows the complete border without Fit to Paper.
Step 4 — Preview before hardcopy
Where: Ctrl+P > Preview
Do this: Inspect border edges, rotation, lineweights and raster content before sending a physical job.
Check: The Preview is correct before the plotter driver becomes part of the diagnosis.
Step 5 — Create a controlled PC3 only when useful
Where: PLOTTERMANAGER / Page Setup
Do this: Save a PC3 when you need repeatable device-specific settings that differ from the Windows/macOS printer defaults.
Check: The PC3 is named by device + media/office standard, not by a vague name such as ‘Plotter 1’.
Paper, rolls and printable area
For dual-roll devices, maintain an approved paper/roll map. Do not rely on an unreviewed automatic roll choice for issue sets.
24/36/44-inch width does not guarantee borderless CAD output. Verify the actual media profile and printable area.
Driver and PC3 strategy
Install the Epson support package for the exact production model. If both Raster and PostScript drivers exist, test and document which queue is the office standard.
Common CAD plotting problems with this family
| Symptom | Most likely hardware/driver layer | First check |
|---|---|---|
| PostScript differs from raster | Rendering path | Compare known sheet. |
| Wrong roll used | Dual-roll source | Check driver policy. |
| Large PDF fast in one queue, slow in another | Rendering/device processing | Use approved queue by content. |
| Paper size missing | Media setup | Refresh Epson media/driver. |
What not to automate or assume
- Do not call PostScript ‘better’ without testing your drawings.
- Do not use the same PC3 name for raster and PostScript queues.
- Do not leave dual-roll behavior undocumented.
Practical example
A T7770D offers both Raster and PostScript paths. Use one calibration Layout containing vector lines, text, a raster image and transparency. Plot through both queues, record the differences and make only the approved queue available in the normal production Page Setups.
Verification before a real issue set
- Run AutoCAD Plot Preview from the named Page Setup.
- Create one PDF and compare page dimensions and scale.
- Print that same PDF or one direct test plot on the intended media.
- Check the border on all four sides, one known dimension, lineweight hierarchy and orientation.
- Only then save the Page Setup/PC3 as the office standard for that device.
Official references
Frequently asked questions
Should I use Epson Raster or PostScript?
Use the driver path supported by your exact model and test your real CAD sheets. PostScript is not automatically the best choice for every AutoCAD drawing.
Can I keep an old Epson HDI driver?
Only in a compatible, tested legacy environment. For a modern OS, prefer the current manufacturer-supported driver unless you have a specific reason.
Does the scanner affect AutoCAD plotting?
No. On MFP models, print and scan are separate software/workflow layers.
Explore more in CAD Printers & Plotters Guide.