Description
HP DesignJet T850 36-inch Large Format Printer (2Y9H0A)
Fast, Versatile A0 CAD Printer with Automatic Multi-Size Printing
The HP DesignJet T850 36-inch Large Format Printer (2Y9H0A) is a versatile professional CAD and technical printer designed for architects, engineers, construction professionals, designers and small-to-medium workgroups that need fast, reliable A0 printing without complicated media handling.
With a maximum print width of 914 mm / 36 inches, the DesignJet T850 can handle everything from everyday A4 and A3 documents through to full-size A1 and A0 technical drawings.
One of the T850's biggest advantages is its ability to manage different page sizes automatically. A built-in 50-sheet input tray handles smaller sheets while the roll feed handles large-format documents, allowing users to print mixed-size jobs without constantly changing media.
Delivering an A1 drawing in as little as 25 seconds and productivity of up to 90 A1 prints per hour, the HP DesignJet T850 is an excellent solution for busy technical environments that need professional large-format printing with simple everyday operation.
Key Features
Professional 36-inch / 914 mm A0 Printing
The HP DesignJet T850 supports roll media up to 914 mm / 36 inches wide, making it ideal for a broad range of technical and business applications.
Typical applications include:
- Architectural plans
- Construction drawings
- Engineering drawings
- CAD documents
- Floor plans
- Elevations and sections
- Electrical drawings
- Mechanical drawings
- Site plans
- Survey plans
- GIS maps
- Technical diagrams
- Presentations
- Posters
- Office documents
Its ability to handle both large-format roll media and everyday cut sheets makes the T850 particularly versatile for offices where different document sizes are printed throughout the day.
Print A4 to A0 Without Manually Switching Media
One of the standout features of the HP DesignJet T850 is its integrated 50-sheet input tray.
Instead of requiring users to manually change between roll media and individual sheets, the printer can manage different page sizes through its combination of:
- Roll feed
- Sheet feed
- 50-sheet input tray
- Media bin
- Automatic horizontal cutter
This means a print job containing a combination of smaller office documents and large-format technical drawings can be produced with significantly less operator intervention.
For architectural and construction businesses that regularly work with mixed page sizes, this can simplify everyday printing considerably.
Fast Printing – Up to 90 A1 Prints Per Hour
The HP DesignJet T850 is designed to keep professional technical workflows moving.
It can produce an A1-size drawing in as little as 25 seconds, with productivity of up to 90 A1 prints per hour.
This makes it well suited to environments where complete plan sets or multiple technical drawings need to be produced quickly.
Whether you're printing one drawing for a client meeting or an entire project package, the T850 provides the speed required for productive everyday use.
Up to 2400 × 1200 Optimised dpi
The HP DesignJet T850 delivers print quality up to 2400 × 1200 optimised dpi, producing sharp technical lines, clear text and professional colour graphics.
With line accuracy of ±0.1%, the printer is designed to reproduce detailed technical information with excellent precision.
This is especially important when printing:
- Fine CAD lines
- Dimensions
- Small annotations
- Hatching
- Engineering symbols
- Detailed plans
- Colour-coded drawings
- Technical maps
Four-Colour Pigment Ink System
The HP DesignJet T850 uses a four-colour pigment ink system consisting of:
- Cyan
- Magenta
- Yellow
- Matte Black
All four colours use pigment-based ink technology.
Pigment inks provide crisp technical output and strong colour performance while helping deliver durable results for everyday CAD and graphics applications.
The system is particularly effective for architectural plans, engineering drawings, construction documents and general colour technical printing.
130 ml & 300 ml Ink Cartridge Options
The HP DesignJet T850 supports both 130 ml and 300 ml ink cartridges, providing flexibility for different printing volumes.
Smaller 130 ml cartridges are suitable for moderate-volume users, while higher-capacity 300 ml cartridges are ideal for businesses producing larger quantities of technical drawings.
Using the larger cartridges can help:
- Reduce cartridge changes
- Minimise printing interruptions
- Improve productivity
- Support longer unattended print runs
Designed for Architects, Engineers & Construction Professionals
The HP DesignJet T850 is designed specifically around modern technical printing workflows.
It provides the combination of speed, precision and simple media handling required for:
Architects
Print floor plans, elevations, sections, construction documentation and presentation drawings.
Engineers
Produce civil, structural, mechanical and electrical engineering documents with sharp lines and clear annotations.
Construction Companies
Quickly produce site plans, tender documents, construction drawings and project documentation.
Surveyors
Print survey plans, cadastral drawings and detailed site information.
Interior Designers
Produce layouts, plans, elevations and presentation documents in colour.
Education & Government
Ideal for departments requiring a shared A0 printer capable of handling both large technical drawings and smaller office documents.
Automatic Multi-Size Printing
The T850 is particularly useful for workflows containing different document sizes.
Instead of manually separating jobs by paper size, users can send multi-size files and allow the printer to manage the appropriate media source.
The integrated sheet tray supports smaller formats while the roll feed handles large-format drawings.
This can reduce:
- Manual media changes
- Operator intervention
- Incorrect paper selection
- Printing delays
- Workflow interruptions
HP specifically promotes the T850 for printing A4/A through A0/E jobs without switching media manually.
50-Sheet Input Tray
The integrated 50-sheet input tray gives the T850 an important advantage over traditional large-format plotters.
Smaller sheets can remain loaded and ready while roll media is installed at the same time.
This allows the printer to function as a more complete office printing solution for technical workgroups.
The media-handling system includes:
- 50-sheet input tray
- Roll feed
- Sheet feed
- Media bin
- Automatic horizontal cutter
Automatic Horizontal Cutter
Roll-fed prints are automatically cut when printing is complete.
The built-in automatic horizontal cutter reduces manual finishing and makes production of multiple plans or drawings more efficient.
Completed prints are then collected in the integrated media bin.
Flexible Media Support
The HP DesignJet T850 can handle a variety of technical and presentation media suitable for CAD and graphics applications.
Typical compatible media categories include:
- Plain paper
- Universal bond paper
- Coated paper
- Heavyweight coated paper
- Recycled paper
- Presentation paper
- Technical paper
- Matte film
- Photo paper
- Self-adhesive media
Roll widths from approximately 369 mm to 914 mm are supported, with a maximum roll diameter of approximately 100 mm and maximum roll weight of approximately 6.2 kg.
Single-Roll Media Handling
The HP DesignJet T850 uses a single-roll configuration.
For most architectural, engineering and construction workgroups, a single roll combined with the 50-sheet input tray provides an excellent balance between simplicity and media flexibility.
The printer can keep a large-format roll loaded while smaller sheet sizes remain available through the automatic input tray.
HP Click – Simple Large Format Printing
The HP DesignJet T850 supports HP Click, designed to make large-format printing easier for both experienced operators and occasional users.
HP Click allows users to prepare and submit files through a simplified workflow.
Benefits include:
- Easy print submission
- Print previews
- Multi-file printing
- Multi-size printing
- Reduced printing mistakes
- Reduced media waste
- Simpler operation for occasional users
The printer also supports the HP Click Driver for Windows 11.
Wi-Fi, Ethernet & Mobile Printing
The HP DesignJet T850 is designed for modern connected work environments.
Printing options include:
- Wi-Fi
- Wi-Fi Direct
- Ethernet network printing
- HP Click
- HP Click Driver
- Apple AirPrint
- HP app for Android and iOS
- Windows printing
- macOS printing
- Chrome OS support
- Remote printing
HP confirms support for Wi-Fi Direct, remote printing, HP Click, Apple AirPrint and mobile workflows.
This makes it easy for different members of a project team to access the printer from desktops, laptops and supported mobile devices.
1 GB Memory
The HP DesignJet T850 includes 1 GB of memory, providing onboard resources for everyday CAD and technical printing workflows.
The printer supports common professional technical print languages including:
- HP-GL/2
- HP-RTL
- TIFF
- JPEG
- URF
- CALS G4
Compact Professional Design
Despite supporting full 36-inch / A0 printing, the DesignJet T850 maintains a relatively compact professional footprint.
HP specifies dimensions of approximately:
1407 × 701 × 967 mm (W × D × H)
with a printer weight of approximately:
47 kg.
This makes the T850 suitable for architectural offices, design studios and project environments where floor space may be limited.
Energy-Efficient Operation
The HP DesignJet T850 is designed to minimise energy consumption during normal use.
HP specifies approximately:
- 35 W while printing
- Less than 5.5 W ready
- Less than 2.5 W sleep
- Less than 0.2 W when switched off
It also supports auto-scheduled printer on/off operation.
Technical Specifications
| Specification | HP DesignJet T850 36-inch Printer |
|---|---|
| Product Number | 2Y9H0A |
| Printer Type | Professional CAD & Technical Large Format Printer |
| Functions | |
| Maximum Print Width | 914 mm / 36 inches |
| Maximum Standard Format | A0 |
| Print Technology | HP Thermal Inkjet |
| A1 Print Speed | As fast as 25 seconds |
| Productivity | Up to 90 A1 prints/hour |
| Maximum Print Resolution | Up to 2400 × 1200 optimised dpi |
| Line Accuracy | ±0.1% |
| Theoretical Minimum Line Width | 0.02 mm |
| Ink System | 4 colours |
| Ink Colours | Cyan, Magenta, Yellow, Matte Black |
| Ink Type | Pigment-based |
| Ink Cartridge Sizes | 130 ml / 300 ml |
| Memory | 1 GB |
| Roll Configuration | Single Roll |
| Roll Width | 369–914 mm |
| Maximum Roll Diameter | Approx. 100 mm |
| Maximum Roll Weight | Approx. 6.2 kg |
| Cut-Sheet Input Tray | 50 sheets |
| Media Handling | Sheet feed, roll feed, 50-sheet tray, media bin |
| Automatic Cutter | Yes |
| Multi-Size Printing | Yes |
| Print Languages | HP-GL/2, HP-RTL, TIFF, JPEG, URF, CALS G4 |
| Wi-Fi | Yes |
| Wi-Fi Direct | Yes |
| Ethernet | Yes |
| Apple AirPrint | Supported |
| HP Click | Supported |
| Mobile Printing | Supported |
| Dimensions (W × D × H) | Approx. 1407 × 701 × 967 mm |
| Weight | Approx. 47 kg |
| Printing Power Consumption | Approx. 35 W |
HP DesignJet T850 vs Conventional CAD Plotters
The T850's main advantage is its ability to combine large-format roll printing with a built-in cut-sheet tray.
| Feature | Conventional CAD Plotter | HP DesignJet T850 |
| 36" / A0 Printing | ✓ | ✓ |
| Roll Printing | ✓ | ✓ |
| A4/A3 Automatic Tray | Often No | ✓ |
| 50-Sheet Input Tray | — | ✓ |
| Automatic Multi-Size Printing | Limited | ✓ |
| A1 Print Speed | Varies | 25 sec |
| Up to 90 A1/hr | Model dependent | ✓ |
| 2400 × 1200 dpi | Model dependent | ✓ |
| 300 ml Ink Option | Model dependent | ✓ |
| Wi-Fi | Model dependent | ✓ |
| HP Click | Model dependent | ✓ |
For businesses printing a mixture of office-size documents and A1/A0 plans, the T850's integrated sheet tray can significantly simplify everyday operation.
