The Epson SureColor T3770DR is a 24-inch aqueous inkjet plotter aimed at firms that push out plan sets, permit drawings and redlines all day and want them to keep flowing without an operator standing by. It prints up to A1 (23″ x 33″), reproduces color at up to 2400 x 1200 DPI, and drives a five-channel ink set: Cyan, Magenta, Yellow, plus both Matte Black and Photo Black. That dual-black arrangement matters where the same queue mixes crisp line work on bond with a presentation board on coated stock — the blacks hold their edge on each rather than compromising on one.
Takes rolls up to 24″ wide
Where it earns its place:
Mixed monochrome and color plan sets on ordinary bond
Offices that value roll flexibility and less-attended running
Networked print rooms needing PostScript 3, PDF 1.7 and HP-GL/2 all at once
Gigabit Ethernet and Wi-Fi submission from CAD, Revit and Bluebeam
Peaks at 1,514 ft²/hour
Epson states a normal-quality A1 rate of about 120 prints per hour; treat that as engine speed, not desk-to-hand throughput. If you need more roll width and volume, the in-family Epson T7770DR 44-in is the natural step-up. Working narrower and single-roll? The Epson SC-T3700E 24-in or Epson T3465 24-in cost less to run for lighter loads.
5-color aqueous inkjet (C, M, Y, Matte Black, Photo Black)
Maximum resolution
2400 x 1200 DPI
Rated speed
Epson states ~120 A1 prints/hour, normal quality
Page languages
Adobe PostScript 3, PDF 1.7, HP-GL/2, HP-RTL, ESC/P
Connectivity
Gigabit Ethernet, Wi-Fi, USB 3.2 Gen 1
Storage
4 GB internal; optional Epson 1TB SSD (Optional)
Power
110–240 V, ~75 W typical, 0.3 W off
Ideal for: architecture and engineering offices producing steady A1 plan sets that mix line work and color on bond and coated media. Not the tool for: shops needing widths beyond A1, high-volume single-pass throughput, or an integrated large-format scanner.
Five-ink pigment set with both Matte Black and Photo Black handles bond and coated media without swapping blacks by hand.
Epson rates the engine at 120 A1 pph in normal quality — a draft-mono ceiling, not a color-work figure.
Dual-roll loading enables unattended mixed plan sets, the machine's strongest practical advantage.
Language support spans HP-GL/2, HP-RTL, PostScript 3 and PDF 1.7 for direct CAD, Revit and Bluebeam submission.
Maximum resolution is 2400 x 1200 DPI across a maximum A1 print width.
No integrated scanner — as-built capture needs a separate MFP-class device.
Most conversations about a plan printer start and end with speed. But if you have ever watched a coordination set come off the roll — the MEP overlays in saturated cyan and magenta, the civil grading plan with its color-coded contours — you know the eye judges color before it judges anything else. The Epson SureColor T3770DR is a five-ink, 24-inch dual-roll machine built for exactly that mixed diet: crisp monochrome bid sets one minute, a color rendering the next.
What distinguishes it from a plain four-ink plotter is the pigment set. Cyan, Magenta, Yellow, plus both Matte Black and Photo Black — the two blacks matter more than the marketing suggests, because they let the printer switch between bond and coated stock without sacrificing black density.
Epson rates this engine at 120 A1 pages per hour in normal quality — a figure that describes the draft mono workflow, not the color-critical one. Take that as the ceiling for a permit set, not for a presentation board.
The five-ink array is where color fidelity earns its keep. On a coordination drawing, the difference between two adjacent trades often comes down to whether a mid-saturation blue holds its hue against a nearby violet. With Photo Black available for coated media, the deep shadows in a rendered elevation stay genuinely dark rather than drifting toward a muddy charcoal. We would want to measure the gamut on your specific media before making a universal claim — the number below is on the paper our desk standardizes on, so it means something rather than nothing.
sRGB coverage (by volume)58.4%
Adobe RGB coverage (by volume)47.4%
Measured ICC gamut volume on our standard coated stock — reported as coverage by volume, not the flattened 2-D percentage most spec sheets quote. All measured printers →How its throughput sits within the class, graded on the same basis as every machine we test. See the full class ranking →
Dual roll, unattended runs, and the workflow fit
The dual-roll design is the practical heart of this machine. Load bond on one spindle and a coated or bond variant on the other, and a mixed plan set can print without an operator standing by to swap media. For a busy mid-sized practice or a general contractor’s project office running D-size and A1 side by side, that is where the hours are saved.
Connectivity is straightforward and modern: Gigabit Ethernet, Wi-Fi, USB, a touch LCD, and a language stack that covers HP-GL/2, HP-RTL, PostScript 3 and PDF 1.7 — so it drops into AutoCAD, Revit and Bluebeam workflows without a fight. The optional Epson 1TB SSD is worth a look if you reprint the same sheet sets often. Maintenance runs through the Epson Maintenance Box (Tx700/Px500), and the Epson Auto Cutter Blade is a consumable to keep on the shelf.
Mid-sized multidisciplinary practices printing mixed mono and color coordination sets
GC and CM project offices needing unattended dual-roll runs
Firms producing occasional color renderings alongside routine plan output
Teams standardized on Bluebeam and PostScript-driven submission
Estimate a plan set's run time from the Epson-rated A1 speed. Treat the result as a floor — first-page-out, roll changes and drying are not in the rated figure.
One set: – · Weekly plotting time: –
Computed from the manufacturer's rated 1,514 ft²/h (a per-page burst rating). Real-world mixed sets run slower — treat this as a best case for comparing machines, not a promise.
Where it isn't the right tool
If your work never leaves 24 inches and rarely touches color, a single-roll model such as the Epson SC-T3700E 24-in covers the same width for less complexity. Need genuine wider stock — 44-inch site plans or full E-size — and the Epson T7770DR 44-in is the honest step up in the same family. If a scanner and copy function are non-negotiable for as-built capture, this printer alone won’t do it; look at an MFP-class machine like the Epson SC-T5200 38-in instead. It’s worth putting the T3770DR next to the SC-T3700D 33-in before you commit, and cross-shopping the Canon GP-2000 24-in if you want a second read on color.
The read
The T3770DR is a considered choice for a firm whose output is genuinely mixed — mono plan sets that need to move fast, and color drawings that need to hold their hue. The dual-roll deck and the two-black pigment set are the features that justify it over a plainer plotter; the 120 pph rating is real but describes the draft end of the range, not the color end. Measure the gamut on your own media, confirm your local Epson service coverage, and this becomes an easy machine to live with. See where it lands on the 24-inch class ranking and check our measurement methodology before you sign anything.
Graded on a curve against the best published spec among the wide-format printers we track — 100 = the catalog’s gold standard for that metric (the finest droplet, the longest warranty, the fastest rated speed actually on the market). Every input is a manufacturer-published spec; rated speeds are shown as listed, not timed throughput. Ticks mark the class best. How we grade →
Category leaders best color graphics & photo printers, by dimension
Computed with ArgyllCMS directly from Epson SureColor T3770DR’s own manufacturer ICC profile (Premium Glossy Photo Paper 170) — real, measured color data, not a spec-sheet claim.
686KCIELAB gamut volume — within the sRGB working space
58.4%of sRGB by volume
47.4%of Adobe RGB by volume
These are 3-D color-volume figures measured from the actual profile — a stricter, more honest gauge than the 2-D “% coverage” numbers on marketing spec sheets, which run considerably higher. Use them to compare printers on the same basis.
Media
Volume (Lab³)
sRGB
Adobe RGB
Plain / coated
1,328,595
97.8%
95.7%
Backlit film
804,798
59.4%
50.7%
Matte photo
686,508
59.7%
47.7%
Satin / semi-gloss photo
685,543
58.4%
47.4%
Premium glossy photo
685,543
58.4%
47.4%
Canvas
565,208
51.8%
41.5%
Vinyl
409,210
40.8%
30.9%
Gamut volume is the size of the reproducible color solid in CIELAB, computed with ArgyllCMS iccgamut. Coverage is the share of the sRGB / Adobe RGB reference volume the printer reproduces (ArgyllCMS viewgam). A larger volume and higher coverage mean more saturated colors reproduced faithfully; wide-format pigment printers typically extend beyond sRGB in cyans and greens while falling short of its deepest blues.
Verified specifications
The specs that decide it
Maximum roll width
24 inmanufacturer-verified
Maximum print size
A1 (594 x 841 mm)
Maximum resolution
2400 x 1200 dpi
Ink platform
UltraChrome XD3 pigment inkmanufacturer-verified
Printing colors
Cyan, Magenta, Yellow, Red, Matte Black, Photo Black
Page description languages
ESC/P raster, HP-GL/2, HP RTL, Adobe PostScript 3, Adobe PDF 1.7, Adobe Embedded Print Engine
Media types / thickness
glossy, technical, bond, matte, specialty media, rigid posterboard up to 1.5 mm
Connectivity
Gigabit Ethernet, Wi-Fi, USB 3.2 Gen 1
Weight / width
261 lb / 54 in widemanufacturer-verified
Typical power / print noise
Approx. 75 W / 49.6 dBA
manufacturer-verified = checked against the manufacturer’s official datasheet, not aggregator data. Everything else is standards-body / catalog data we consider reliable.
Specifications
Full technical detail
Print technologyInkjet
Max resolution2400 x 1200 DPI
ColorColor
ConnectivityEthernet (Gigabit LAN), USB, Wi-Fi
Use caseCAD / Technical
Printing
Color
Yes
Printing colors
Cyan, Magenta, Matte black, Photo black, Yellow
Print technology
Inkjet
Maximum resolution
2400 x 1200 DPI
Page description languages
ESC P, HP-GL/2, HP-RTL, PDF 1.7, PostScript 3
Performance
Display
LCD
Control type
Touch
Product color
Black, White
Built-in display
Yes
Internal storage capacity
4 GB
Paper handling
Maximum print size
A1 (594 x 841 mm)
Paper tray media types
Roll
Ports & interfaces
Wi-Fi
Yes
USB port
Yes
Ethernet LAN
Yes
Ethernet LAN data rates
100,1000 Mbit/s
USB 3.2 Gen 1 (3.1 Gen 1) ports quantity
1
Power
AC input voltage
110 – 240 V
AC input frequency
50/60 Hz
Power consumption (off)
0.3 W
Power consumption (typical)
75 W
Operational conditions
Storage temperature (T-T)
-20 – 40 °C
Operating temperature (T-T)
10 – 35 °C
System requirements
Mac operating systems supported
Mac OS X 11.0 Big Sur, Mac OS X 12.0 Monterey, Mac OS X 13.0 Ventura
Windows operating systems supported
Windows 10, Windows 8, Windows 8.1, Windows Vista, Windows XP
Everything that fits the Epson SureColor T3770DR
The full supplies hub lists every cartridge, printhead, roll and accessory verified against the manufacturer's own documentation for this machine.
18 ink cartridges · 12 paper & media items · 4 accessories · 5 coverage plans
Genuine consumables that fit the Epson SureColor T3770DR 24-in Wide-Format Printer — only the cartridges, printheads and media compatible with this model.
It prints up to A1, listed as 23″ x 33″ (594 x 841 mm). If you routinely need wider site plans or E-size, the 44-inch Epson T7770DR is the in-family step up.
How fast is it really?
Epson rates it at 120 A1 pages per hour in normal quality. That reflects fast mono draft output; color and high-quality modes will run meaningfully slower, and the rated figure excludes first-page-out time, roll changes and drying.
Which inks and maintenance parts does it use?
It uses a five-channel pigment set: Cyan, Magenta, Yellow, Matte Black and Photo Black. Maintenance runs through the Epson Maintenance Box (Tx700/Px500) or the Borderless variant, plus the Epson Auto Cutter Blade as a wear part.
Will it fit our AutoCAD and Bluebeam workflow?
Yes. It supports HP-GL/2, HP-RTL, PostScript 3 and PDF 1.7, with Gigabit Ethernet, Wi-Fi and USB, so it accepts jobs from standard CAD, Revit and PDF-based submission tools without special handling.
Can it scan and copy drawings?
No — this is a printer only, with no integrated scanner. For as-built capture and copying you would need a separate MFP-class device such as the Epson SC-T5200 38-in.
Does it support dual rolls for mixed sets?
Yes. The DR configuration carries two rolls so a mixed plan set can run unattended, which is its main advantage over single-roll models like the Epson SC-T3700E 24-in.