Printer parts
Front view
Figure 2-1 Front and top views of HP ENVY Photo 7800 All-in-One series
| Feature | Description |
| 1 | Lid |
| 2 | Lid-backing |
| 3 | Scanner glass |
| 4 | Printer model name |
| 5 | Cartridge access door |
| 6 | Memory device area |
| 7 | Cartridge access area |
| 8 | cartridges |
| 9 | Photo tray |
| 10 | On button (also referred to as the Power button) |
| 11 | Control panel |
| 12 | Output tray |
| 13 | Color graphics display (also referred to as the display) |
| 14 | Automatic output tray extender (also referred to as the tray extender) |
| 15 | Memory card slot |
| 16 | Memory device light |
| 17 | Front universal serial bus (USB) port |
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| Feature | Description |
| 18 | Unlatch button |
| 19 | Paper tray |
Printing supplies area
| Feature | Description |
| 1 | Cartridge access door |
| 2 | Printhead |
| 3 | Cartridges |
NOTE: Cartridges should be kept in the printer to prevent possible print quality issues or printhead damage.
Avoid removing supplies for extended periods of time.
Back view
Figure 2-2 Rear view of HP ENVY Photo 7800 All-in-One series
| Feature | Description |
| 1 | Document feeder |
| 2 | Ethernet network port |
| 3 | Rear USB port |
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| Feature | Description |
| 4 | Fax ports: 2-EXT (top) and 1-LINE (bottom) |
| 5 | Power connection. Use only the power cord supplied by HP. |
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Control panel and status lights
Overview of buttons and lights
The following diagram and related table provides a quick reference to the printer control panel features.
| Label | Name and Description |
| 1 | Power button: Turns the printer on or off. |
| 2 | Back button: Returns to the previous screen. |
| 3 | Help button: Opens the Help menu for the current operation. |
| 4 | Home button: Returns to the Home screen, the screen that is displayed when you first turn on the printer. |
| 5 | Control panel display: Touch the screen to select menu options, or scroll through the menu items. |
- Wireless light: Indicates the status of the printer wireless connection.
- Solid blue light indicates that wireless connection has been established and you can print.
- Slow blinking light indicates that wireless is on, but the printer is not connected to a network. Make sure your printer is within the range of wireless signal.
- Fast blinking light indicates wireless error. Refer to the message on the printer display.
- If wireless is turned off, the wireless light is off and the display screen shows Wireless Off.
Control panel display icons
Icon Purpose
Copy : Opens the Copy menu where you can select a copy type or change the copy settings.
Scan : Opens the Scan menu where you can select a destination for your scan.
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Icon Purpose
Apps : Access the apps from your printer.
Photo : Opens the Photo menu where you can view and print photos.
Fax : Displays a screen where you can send a fax, or change fax settings.
Setup : Opens the Setup menu where you can change preferences and use tools to perform maintenance functions.
Help : Opens the Help menu where you can view How To videos, printer feature information, and tips.
HP ePrint icon: Opens the Web Services Summary menu, where you can check ePrint status details, change ePrint settings, or print an Info page.
Wi-Fi Direct icon: Opens the Wi-Fi Direct menu where you can turn on Wi-Fi Direct, turn off Wi-Fi Direct, and display the Wi-Fi Direct name and password.
Wireless icon: Opens the Wireless Summary menu where you can check wireless status and change wireless settings. You can also print a wireless test report, helping diagnose network connection issues.
NOTE: (Ethernet) and 
(Wireless) will not be displayed at the same time. Showing the Ethernet icon or the wireless icon depends on the way your printer is connected to the network. If the network connection of
the printer has not been set up, by default, the printer control panel display shows 
(Wireless).
Ethernet icon: Shows that an Ethernet network connection exists and also provides easy access to the the network status screen.
ECO icon: Displays a screen where you can configure some of the printer environmental features.
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Icon Purpose
Fax Status icon: Displays status information for the Auto Answer function, fax logs, and the fax sound volume.
Ink icon: Shows estimated ink levels by cartridge. Displays a warning symbol if the ink level is less than the minimum expected ink level.
NOTE: Ink level warnings and indicators provide estimates for planning purposes only. When you receive a low-ink warning message, consider having a replacement cartridge available to avoid possible printing delays. You do not need to replace cartridges until the print quality becomes unacceptable.
Change printer settings
Use the control panel to change the printer function and settings, print reports, or get help for the printer.
TIP: If the printer is connected to a computer, you can also change the printer settings using the printer management tools in computer.
For more information about these tools, see Printer management tools.
To change settings for a function
The Home screen of the control panel display shows the available functions for the printer.
- From the control panel display, select a function tab, touch and slide your finger across the screen, and then touch the icon to select the desired function.
- After selecting a function, touch
( Settings ), scroll through the available settings, and then touch the setting you want to change.
( Settings ), scroll through the available settings, and then touch the setting you want to change.- Follow the prompts on the control panel display to change the settings.
TIP: Touch 
(Home) to return to the Home screen.
To change the printer settings
To change the printer settings or print reports, use the options available on the Setup menu.
- From the printer control panel, touch or swipe down the tab at the top of the screen to open the
Dashboard, and then touch 
( Setup ).
- Touch and scroll through the screens.
- Touch the screen items to select screens or options.
TIP: Touch (Home) to return to the Home screen.
Dashboard
The Dashboard on the printer control panel lets you access the icons on the display, check the status of the printer, or monitor and manage current and scheduled printer tasks.
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To open the Dashboard, touch or swipe down the tab 
at the top of a screen on the control panel.
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Paper basics
The printer is designed to work well with most types of office paper. It is best to test a variety of print paper types before buying large quantities. Use HP paper for optimum print quality. Visit the HP website at www.hp.com for more information about HP paper.
HP recommends plain papers with the ColorLok logo for printing everyday documents. All papers with the ColorLok logo are independently tested to meet high standards of reliability and print quality, and produce documents with crisp, vivid color, bolder blacks, and that dry faster than ordinary plain papers. Look for papers with the ColorLok logo in a variety of weights and sizes from major paper manufacturers.
This section contains the following topics:
Recommended papers for printing
If you want the best print quality, HP recommends using HP papers that are specifically designed for the type of project you are printing.
Depending on your country/region, some of these papers might not be available.
Photo printing
HP Premium Plus Photo Paper
HP Premium Plus Photo Paper is HP’s highest-quality photo paper for your best photos. With HP Premium Plus Photo Paper, you can print beautiful photos that are instant-dry so you can share them right off the printer. The printer supports several sizes, including A4, 8.5 x 11 inches, 4 x 6 inches (10 x 15 cm), and 5 x 7 inches (13 x 18 cm) in two finishes – glossy or soft gloss (semi-gloss). Ideal for framing, displaying, or gifting your best photos and special photo projects. HP Premium Plus Photo Paper delivers exceptional results with professional quality and durability.
HP Advanced Photo Paper
This glossy photo paper features an instant-dry finish for easy handling without smudging. It resists water, smears, fingerprints, and humidity. Your prints have a look and feel comparable to a store-processed photo. It is available in several sizes, including A4, 8.5 x 11 inches, 10 x 15 cm (4 x 6 inches), 13 x 18 cm (5 x 7 inches). It is acid-free for longer lasting documents.
HP Everyday Photo Paper
Print colorful, everyday snapshots at a low cost, using paper designed for casual photo printing. This affordable photo paper dries quickly for easy handling. Get sharp, crisp images when you use this paper with any inkjet printer. It is available in glossy finish in several sizes, including A4, 8.5 x 11 inches, 5 x 7 inches and 4 x 6 inches (10 x 15 cm). It is acid-free for longer lasting documents.
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Business documents
HP Premium Presentation Paper 120g Matte or HP Professional Paper 120g Matte
This paper is a heavy two-sided matte paper perfect for presentation, proposals, reports, and newsletters. It is heavyweight for an impressive look and feel.
HP Brochure Paper Glossy or HP Professional Paper Glossy
These papers are glossy-coated on both sides for two-sided use. They are the perfect choice for near-photographic reproductions and business graphics for report covers, special presentations, brochures, mailers, and calendars.
HP Brochure Paper Matte or HP Professional Paper Matte
These papers are matte-coated on both sides for two-sided use. They are the perfect choice for near-photographic reproductions and business graphics for report covers, special presentations, brochures, mailers, and calendars.
Everyday printing
All the papers listed for everyday printing feature ColorLok Technology for less smearing, bolder blacks, and vivid colors.
HP Bright White Inkjet Paper
HP Bright White Inkjet Paper delivers high-contrast colors and sharp text. It is opaque enough for two-sided color usage with no show-through, which makes it ideal for newsletters, reports, and flyers.
HP Printing Paper
HP Printing Paper is a high-quality multifunction paper. It produces documents that look and feel more substantial than documents printed on standard multipurpose or copy paper. It is acid-free for longer lasting documents.
HP Office Paper
HP Office Paper is a high-quality multifunction paper. It is suitable for copies, drafts, memos, and other everyday documents. It is acid-free for longer lasting documents.
Order HP paper supplies
The printer is designed to work well with most types of office paper. Use HP paper for optimum print quality.
To order HP papers and other supplies, go to www.hp.com . At this time, some portions of the HP website are available in English only.
HP recommends plain papers with the ColorLok logo for printing and copying of everyday documents. All papers with the ColorLok logo are independently tested to meet high standards of reliability and print quality, and produce documents with crisp, vivid color, bolder blacks and shorter dry-time than ordinary plain papers. Look for papers with the ColorLok logo in a variety of weights and sizes from major paper manufacturers.
Tips for selecting and using paper
For the best results, observe the following guidelines.
- Load only one type and one size of paper at a time into a tray or document feeder.
- Make sure the paper is loaded correctly when loading from the input tray or document feeder.
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- Do not overload the tray or document feeder.
- To prevent jams, poor print quality, and other printing problems, avoid loading the following paper in the tray or document feeder:
- Multipart forms
- Media that is damaged, curled, or wrinkled
- Media with cutouts or perforations
- Media that is heavily textured, embossed, or does not accept ink well
- Media that is too lightweight or stretches easily
- Media that contains staples or clips
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Load paper
Select a paper size to continue.
To load small-size paper
- Pull out the photo tray.
Slide the paper-width guides outward, and then remove any previously loaded media. If you do not see the photo tray, remove the output tray from the printer.
- Load paper.
●Insert a stack of photo paper into the photo tray print side down.
- Slide the photo paper forward until it stops.
- Slide the paper-width guides inward until they stop at the edges of the paper.
- Push the photo tray back in.
- Change or retain the paper settings on the printer display.
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To load full-size paper
- Pull out the paper tray, slide the paper-width guides outward, and then remove any previously loaded media.
- Load paper.
- Insert a stack of paper into the paper tray with the short edge forward and the print side down.
- Slide the paper forward until it stops.
- Slide the paper-width guides inward until they stop at the edges of the paper.
- Push the paper tray back in.
- Change or retain the paper settings on the printer display.
To load legal paper
- Pull out the paper tray, slide the paper-width guides outward, and then remove any previously loaded media.
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- Unlock and open the front side of the paper tray.
- Load paper.
- Insert a stack of paper into the paper tray with the short edge forward and the print side down.
- Slide the paper forward until it stops.
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To read more please download the PDFs bellow
Download HP Envy Photo 7855 All-In-One User Manual
hp 7855 manual
hp envy photo 7855 all-in-one printer manual
hp 7855 manual
hp envy photo 7855 all-in-one printer manual
hp envy 7855 manual