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HP DeskJet 2645 Manual — Setup, Troubleshooting & Support Guide

The HP DeskJet 2645 is a compact all-in-one inkjet printer designed for home and small office use, offering print, copy, and scan capabilities. This manual provides complete setup instructions, detailed troubleshooting solutions for common issues, and maintenance tips to keep your printer running smoothly.

USB & Wireless Connectivity Color Inkjet All-in-One HP 65/65XL Cartridges
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Product Setup

1

Unpack and Position Printer

Remove the HP DeskJet 2645 from its packaging and place it on a flat, stable surface. Ensure there is adequate ventilation around the printer and keep it away from direct sunlight and moisture.

2

Install HP 65 or HP 65XL Ink Cartridges

Open the cartridge access door, wait for the print carriage to move to the center, and insert the black and color cartridges firmly into their designated slots until they click into place. Close the access door to continue.

3

Load Paper and Power On

Insert plain white letter or A4 paper into the input tray, adjust the paper-width guide to fit snugly, and press the power button. Wait until the On button light stabilizes before proceeding.

4

Install Printer Software

Insert the included software CD or download the latest HP DeskJet 2645 drivers from www.hp.com/support. Follow the on-screen installation wizard and complete the setup using the control panel on your printer.

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Pro-Tip: Do not touch the copper-colored contacts or the ink nozzles. Touching these parts can result in clogs, ink failure, and bad electrical connections.

WiFi Connection Guide

wifi

Wireless Network Setup

Connect your HP DeskJet 2645 to your home or office WiFi network using the wireless setup wizard on the printer's control panel. Select your network from the available list, enter your password, and confirm the connection status.

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USB Direct Connection

For reliable performance, connect your printer directly to your computer using a USB cable (3 m / 10 feet or shorter recommended). Ensure the printer is powered on and the software is installed before connecting the cable.

Troubleshooting FAQ

Paper Jam in Input or Output Trayexpand_more
Gently pull the jammed paper out of the input or output tray without tearing it. Press the OK button on the control panel to resume printing. To prevent future jams, avoid overfilling the input tray, remove printed papers frequently, and ensure paper edges are not bent or torn. Do not combine different paper types in the tray.
Poor Print Quality or Streaksexpand_more
First, verify you are using original HP 65 or HP 65XL cartridges and HP recommended paper. Check ink levels by accessing the printer software and selecting 'Check Ink Levels.' Align the cartridges through Print, Scan & Fax > Maintain Your Printer > Align Ink Cartridges. If streaks persist, print a diagnostics page and clean the printhead through the Device Services tab. Ensure you are using the correct paper type and quality settings in your print dialog.
Unable to Printexpand_more
Confirm the printer is powered on and paper is loaded in the input tray. Check for error messages on the printer display. Disconnect and reconnect the USB cable, or ensure your wireless connection is stable. Verify the printer is not paused or offline by checking Devices and Printers on your computer. Set the HP DeskJet 2645 as your default printer. If issues persist, restart the print spooler service through Control Panel > Administrative Tools > Services, or download the HP Print and Scan Doctor utility for automatic troubleshooting.
Cartridge Not Recognized or Error Messagesexpand_more
Remove and reinserert the HP 65 or HP 65XL cartridge, ensuring it clicks firmly into place. If the error persists, clean the cartridge contacts with a dry, lint-free cloth by wiping only the small gold-colored dots on the cartridge bottom. Also clean the printer's cartridge contacts using a dry swab. Wait 30 minutes before reinstalling. If you have an older generation cartridge, check the 'Warranty Ends' date on the package for a 'v1' designation indicating the newer version. Contact HP support if problems continue.
Copy or Scan Issuesexpand_more
For scanning problems, download the HP Print and Scan Doctor (Windows only) from hp.com/support, which can automatically diagnose and resolve common issues. Ensure your printer is properly connected via USB or wireless network. Place documents correctly on the scanner glass with the content facing down. For copying issues, verify paper is loaded and the correct tray is selected. Visit www.hp.com/support for detailed online troubleshooting guides specific to your issue.
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Important Safety Instructions

  • Always turn off the printer using the power button and wait for the indicator light to go out to protect ink cartridges from drying out
  • Use only original HP 65 and HP 65XL cartridges and HP-recommended paper types for best results and warranty coverage
  • Clean the printhead only when necessary through Device Services to prevent wasting ink; excessive cleaning shortens printhead lifespan
  • Never leave ink cartridges outside the printer for more than 30 minutes to avoid printhead damage
  • Regularly remove printed papers from the output tray and keep the input tray paper-width guide adjusted snugly to prevent paper jams

Replacement Ink Cartridges

The HP DeskJet 2645 printer uses genuine HP 65 / HP 65XL ink cartridges. Select your cartridge below to purchase replacement cartridges on Amazon:

shopping_cart Buy HP 65 on Amazon shopping_cart Buy HP 65XL on Amazon

Technical Specifications

Feature Specification
Model NumberHP DeskJet 2645 (Part of the DeskJet 2640 series)
Print TechnologyColor Inkjet - Black and Color printing
Ink CartridgesHP 65 (standard) or HP 65XL (high-yield)
Print SpeedUp to 8 ppm (pages per minute) in draft mode
ConnectivityUSB 2.0 High-Speed, WiFi 802.11b/g/n wireless
FunctionsPrint, Copy, Scan, and Fax
ResolutionUp to 4800 x 1200 optimized dpi for color; 1200 x 1200 dpi native
Paper SizesLetter (8.5 x 11"), A4, and other standard sizes
USB Cable LengthUse cables 3 m (10 feet) or shorter to minimize electromagnetic interference
Related ModelsDeskJet 2600, 2620, 2621, 2622, 2623