HP Smart Tank 790 All-in-One Printer

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USh 1,700,000

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– A4 Color Inkjet All-in-One Printer
– Print, Copy, Scan and Fax
– Print speed up to 23 ppm (black) and 22 ppm (color)
– USB, WiFi, Bluetooth, LAN, Mobile Printing


With automatic two-sided printing, multi-page scanning, and the HP Smart app, you can save time and increase company efficiency.
Automatic two-sided printing helps you get through multi-page papers faster.

Original HP ink is supplied and is ideal for low-cost, high-volume printing up to 12000 black or 8000 color pages.
You can print up to 12000 black pages or 8000 color pages.

From beginning to end, you’ll have a premium experience.
With the help of a simple mobile setup, you can print with ease. 1. Auto feeder with 35 pages, modern touch interface, smart guided illumination, and tank lights.

You can print from any location.
With quicker self-healing dual band Wi Fi® 2, ethernet capability, and the HP Smart app, you can get more done in less time.

Increased productivity at home
With great print quality, automated two-sided printing, and Shortcuts in the best-in-class HP Smart app3, you can get more done.

Totally stuffed with savings
Original HP ink is included4 for high-volume, low-cost printing up to 8000 color or 12000 black pages.

Refilling is simple and spill-free.
No squeezing or spilling required; simply plug the bottle into the ink tank and let it drain.

Technical Specifications

Print speed, black
Up to 23 ppm (A4, Draft)
Color output
Print speed, color
Up to 22 ppm (A4, Draft)
Product type
Ink Tank Printer
Family brand
Smart tank
Perfect For
Print scan copy and fax
Envelope input capacity
Up to 30 envelopes
Output capacity
Up to 100 sheets
Maximum output capacity (sheets)
Up to 100 sheets
Paper handling input, standard
250-sheet input tray
Input capacity
Up to 250 sheets
Paper handling output, standard
100-sheet output tray
Standard output capacity (envelopes)
Up to 30 envelopes
Maximum input capacity (sheets)
Up to 250 sheets
Standard output capacity (legal)
Up to 50 sheets
Maximum input capacity (photo paper)
Up to 50 sheets
Standard input capacity (legal)
Up to 250 sheets
Standard input capacity (cards)
Up to 30 cards
Maximum input capacity (labels)
Up to 20 sheets
Maximum output capacity (photo paper)
Up to 30 sheets
Maximum output capacity (cards)
Up to 30 cards
Standard output capacity (cards)
Up to 30 cards
Standard output capacity (labels)
Up to 20 sheets
Maximum output capacity (labels)
Up to 20 sheets
Maximum output capacity (envelopes)
Up to 30 envelopes
Display HP
3 inch (76.2 mm) Touchscreen MGD (Mono Graphics Display)
Scan speed (normal, letter)
Up to 8 ipm (200 ppi, mono); Up to 3.5 ipm 200 ppi, color)
Scan speed (normal, A4)
Up to 3.5 ipm (color); Up to 8 ipm (mono)
Ink types
Pigment-based (black); Dye-based (color)
Print heads
2 (1 each black, tri-color)
Color(s) of printing supplies
Black; Cyan; Magenta; Yellow
Print head nozzles
704 (Black), 588 (Tri-color)
Replacement cartridges
HP 32 90-ml Black bottle (~4000 pages), HP 32XL 135-ml Black bottle (~6000 pages), HP 31 70-ml Cyan bottle (~8000 pages), HP 31 70-ml Magenta bottle (~8000 pages), HP 31 70-ml Yellow bottle (~8000 pages); For more information about fill and yield see www.hp.com/go/learnaboutsupplies
Print colors maximum
Input voltage: 100 to 240 VAC (+/- 10%), 50/60 Hz (+/- 3 Hz)
Power Consumption
0.1 watts (off);1.10 watts (sleep)
Power supply type
Multitasking supported
Duty cycle (monthly, letter)
Up to 6,000 pages
Envelope feeder
Recommended monthly page volume note
HP recommends that the number of pages per month of imaged output be within the stated range for optimum device performance, based on factors including supplies replacement intervals and device life over an extended warranty period.
Print, Copy, Scan, Fax, ADF and Wireless
Print languages
Paper trays, maximum
Duty cycle (monthly, A4)
Up to 6,000 pages
Paper trays, standard
Recommended monthly page volume
400 to 1200
Print technology
HP Thermal Inkjet
Duplex printing
Automatic paper sensor
Memory card compatibility
Print colours
Top key features
35-sheet ADF; Scan to PDF; Two-sided printing
Target user and print volume
For teams up to 3 users; Prints up to 1200 pages/month
Borderless printing
Yes (up to 8.5 x 11 in, 210 x 297 mm)
Printer drivers included
Vertical alignment accuracy
+/- 0.02 mm
Scan size (ADF), maximum
216 x 356 mm
Scan file format
Color scanning
Auto document feeder capacity
Standard, 35 sheets
Scanner type
Flatbed and ADF
Scan size, maximum
216 x 297 mm
Levels of grayscale
Scan input modes
Front Panel Scan; Copy; Fax; HP Software; EWS
Bit Depth
Twain version
Version 2.1
Scan technology
Contact Image Sensor (CIS)
Image scaling or enlargement range
Scanning options (ADF)
Scan size, maximum
8.5 x 11.69 in
Scan size (ADF), maximum
8.5 x 14 in
ENERGY STAR® certified
Electromagnetic Emission Standard
CISPR 32:2015/EN 55032:2015+A11:2020 Class B; CISPR24:2010+A1:2015/EN 55024:2010+A1:2015; EN55035:2017+A11:2020/CISPR35:2016; EN 61000-3-2:2019; EN 61000-3-3:2013+A1:2019; FCC CFR 47 Part 15 Subpart B; ICES-003 Issue 7:2020; EN 301 489-1 V2.2.3; EN 301 489-17 V3.2.2
Telecom compliance (fax capability)
EN 300 328 V2.2.2; EN 301 893 V2.1.1; EN 300 440 V2.1.1
25% post-consumer recycled plastic; Recyclable through HP Planet Partners
Blue Angel compliant
Yes, Blue Angel DE-UZ 219—only ensured when using Original HP supplies
Exifprint supported
Non-Operating Humidity Range
5 to 90% RH (non-condensing)
Operating humidity range
15 to 80% RH (non-condensing)
Storage temperature range
-40 to 60°C
Operating temperature range
5 to 40°C
Acoustic pressure emissions
59.4 dB(A) (printing at 10ppm)
Acoustic power emissions
6.5 B(A) (printing at 10ppm)
Recommended operating temperature range
15 to 30°C
With services, software, solutions and support from HP Total Care, you can use, protect and enjoy your HP technology; one-year technical support; one-year or 50,000 pages limited hardware warranty, whichever is earlier from the date of purchase; user replaceable parts have separate warranty periods; access to 24/7 world-class support services through http://www.hp.com/support ; to improve your product experience, please take the time to register at http://www.register.hp.com
Dimensions without stand (W x D x H)
42.75 x 36.40 x 24.03 cm
Package dimensions (W x D x H)
484 x 284 x 410 mm
Maximum dimensions (W x D x H)
453.55 x 440.73 x 249.63 mm
Minimum dimensions (W x D x H)
16.83 x 14.33 x 9.46 in
Package dimensions (W x D x H)
19.06 x 11.18 x 16.14 in
Dimensions with trays up (W x D x H)
427.54 x 364.00 x 240.25 mm
7.70 kg
Package weight
10.70 kg
Package weight
23.54 Ib
Connectivity, standard
Hi-Speed USB 2.0; Wi-Fi; Bluetooth LE; 1 USB Host; LAN
Network capabilities
Yes, via built-in Ethernet; Wi-Fi
Wireless capability
Yes, 2.4/5G dual band Wi-Fi, Wi-Fi Direct, Bluetooth low energy
Mobile printing capability
Apple AirPrint; Mopria Print Service; HP Print Service Plugin (Android printing); HP Smart app; Wi-Fi Direct Printing
Auto redial
Speed dials, maximum number
Up to 99 numbers
Fax memory
Up to 100 pages
Fax forwarding
Fax delayed sending
Yes, color
Junk fax barrier
Remote retrieval
Auto fax reduction supported
PC interface supported
Yes, PC fax send and archive
Telephone handset supported
Distinctive ring detection supported
Fax telephone mode supported
Fax memory
Up to 100 pages
Modem speed
Internal. Data transfer rate up to 33.6kbps
Faxing options (ADF)
Country of origin
Made in China
Control panel
3 in (76.2 mm) Touchscreen MGD (Mono Graphics Display), touch button (cancel, help, back)
Processor speed
800 MHz
Scan Resolution, Hardware
Up to 1200 x 1200 dpi
Enhanced scanning resolution
Up to 1200 dpi
Scan Resolution, Optical
Up to 1200 dpi
Scan resolution enhanced disclaimer
Up to 1200 dpi
Scan resolution enhanced disclaimer
Up to 1200 ppi
256 MB
Memory, maximum
256 MB
Standard memory note
Not upgradeable
Fax transmission speed
33.6 kbps
Fax note
Based on standard ITU-T test image #1 at standard resolution. More complicated pages or higher resolution will take longer and use more memory.
Fax transmission speed
4 sec per page
Media sizes supported
A4; A5; A6; B5 (JIS); Envelope (DL, C5, C6, Chou #3, Chou #4); Card (Hagaki, Ofuku Hagaki); legal
Standard media sizes (duplex)
A4; B5; Not supported for borderless photo
Media weight, supported
Plain paper: 60 to 105 g/m²; Envelopes: 75 to 90 g/m²; Cards: up to 200 g/m²; Photo paper: up to 250 g/m²
Media types
Plain Paper, HP Photo Papers, HP Matte Brochure or Professional Paper, HP Matte Presentation Paper, HP Glossy Brochure or Professional Paper, Other Photo Inkjet Papers, Other Matte Inkjet Papers, Other Glossy Inkjet Papers, Light/Recycled
Media sizes, custom
88.9 x 127 mm to 215.9 x 355.6 mm
Media weight, recommended
60 to 105 g/m²
Media sizes supported, key
Envelopes; Legal; Letter; 4 x 6 in
Media sizes supported, key
10 x 15 cm; A4; Envelopes
Media weight, supported
Plain paper: 16 to 28 lb; Envelopes: 20 to 24 lb; Cards: up to 110 lb; Photo paper: up to 66 lb
Standard media sizes (duplex, imperial)
Letter; Executive; Not supported for borderless photo
Media sizes supported
Letter; Legal; Government Legal; Executive; Statement; 4 x 6 in; 5 x 7 in; 8 x 10 in; L; Photo 2L; Envelope (#10, Monarch, 5.5 bar); Card (4 x 6 in, 5 x 8 in)
Media sizes, custom
3.5 x 5 in to 8.5 x 14 in
Media weight, recommended
16 to 28 lb
Minimum System Requirements for Macintosh
macOS v10.14 Mojave, macOS v10.15 Catalina, macOS v11 Big Sur; 2 GB HD; Internet required
Minimum System Requirements
Windows 10, 7: 32-bit or 64-bit, 2 GB available hard disk space, Internet connection, Internet Explorer.
Fax resolution
Up to 300 x 300 dpi
Resolution (black and white, standard mode)
203 x 98 dpi
Fax resolution black
203 x 196 dpi
Fax resolution color (standard)
200 x 200 dpi
Fax resolution color (fine)
200 x 200 dpi
Mac compatible
Software included
HP Printer Software, available online
Compatible Operating Systems
Windows 10, 7; macOS v10.14 Mojave, macOS v10.15 Catalina, macOS v11 Big Sur;
Operating system (supported note)
Windows 10, 7: 32-bit or 64-bit, macOS v10.14 Mojave, macOS v10.15 Catalina, macOS v11 Big Sur; 2 GB available hard disk space; Internet connection; Internet Explorer
Print quality black (best)
Up to 1200 x 1200 rendered dpi
Print quality color (best)
Up to 4800 x 1200 optimized dpi color when printing from a computer and 1200 input dpi
Typical electricity consumption (TEC) number
0.20 kWh/Week
Number of users
1-3 Users
Maximum print area
215.9 x 355.6 mm
Right margin (A4)
3.3 mm
Top margin (A4)
3.3 mm
Bottom margin (A4)
3.3 mm
Left margin (A4)
3.3 mm
File formats, supported
Send to email capability
Printer smart software features
Duplex Printing
Fax smart software features
Copies, maximum
Up to 99 copies
Copy reduce / enlarge settings
25 to 400%
Copier settings
Number of Copies, Access copier settings of Resize, Quality, Lighter/Darker, Papersize, Papertype settings via HP Smart
Colour copy capability
Copy speed colour (draft, A4)
Up to 22 cpm
Copy speed color (ISO)
Up to 6 cpm
Copy speed black (ISO)
Up to 13 cpm
Fax phone TAM interface supported
Fax phone features
Sub-brand name
Smart Tank
Output file format
PictBridge supported
PictBridge description
Print speed colour (draft, A4)
Up to 22 ppm
Print speed color (ISO)
Up to 9 ppm
Print speed black (ISO)
Up to 15 ppm
Print speed black (draft, A4)
Up to 23 ppm