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HP DeskJet 3755 Manual — Setup, Troubleshooting & Cartridge Guide

The HP DeskJet 3755 is a compact all-in-one inkjet printer designed for home use, offering wireless printing, scanning, and copying in one of the smallest footprints available in its class. It uses HP 63 and HP 63XL ink cartridges and supports mobile printing via Wi-Fi Direct. This page covers setup instructions, cartridge maintenance, troubleshooting tips, and full technical specifications.

Wireless 802.11b/g/n Color Inkjet All-in-One HP 63 / HP 63XL Cartridges
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Product Setup

1

Load Paper into the Input Tray

Raise the input tray and input tray extender, then insert a stack of paper with the short edge down and the print side facing up. Slide the paper-width guide snugly against the edge of the paper, then pull out the output tray and lift the paper catch.

2

Install the HP 63 Ink Cartridges

Open the cartridge access door and wait for the print carriage to move to the center. Remove the plastic tape from each cartridge using the pull tab, then slide each cartridge into the correct slot at a slight upward angle until it clicks into place. Close the cartridge access door.

3

Connect to Your Wireless Network

Press the Wireless button on the control panel to enable Wi-Fi. Use the HP printer software or the Wireless Setup Wizard to connect the printer to your home network. The Wireless light will remain solid once the printer is successfully connected.

4

Install the HP Printer Software

Download and install the HP printer software from HP's website or use the included setup disc. On Windows 10, click Start, select All Apps, click HP, and select your printer name. Follow the on-screen instructions to complete the software setup and run a test print.

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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

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Wireless Network (802.11b/g/n)

Connect the HP DeskJet 3755 to your home Wi-Fi network for convenient wireless printing from any room. Press the Wireless button on the control panel to enable wireless mode, then use the HP printer software to select your network and enter your password. Once connected, the Wireless light and signal bars on the display will remain solid.

smartphone

Wi-Fi Direct (No Router Required)

Wi-Fi Direct lets you print directly from a smartphone or tablet without needing a wireless router. Press the Wi-Fi Direct button on the control panel to turn it on — the Wi-Fi Direct light and icon will illuminate when ready. Search for the printer's Wi-Fi Direct network name on your mobile device, enter the password when prompted, and print using a compatible mobile printing app.

Troubleshooting FAQ

Paper Jam — How to Clearexpand_more
Press the Cancel button to attempt an automatic jam clear. If unsuccessful, gently pull the jammed paper from the input or output tray. For jams in the cartridge access area, power off the printer, open the cartridge access door, slide the carriage to the right, and carefully remove the jammed paper. Close the door and press the Power button to restart, then press Resume to continue printing.
Printer Not Printing (Windows)expand_more
First, confirm the printer is powered on and paper is loaded in the input tray. Check for error messages in the HP printer software and follow the on-screen instructions. Verify the printer is not set to Paused or Use Printer Offline by opening Devices and Printers in the Control Panel. Make sure the HP DeskJet 3755 is set as the default printer, then restart the Print Spooler service under Administrative Tools if needed. Clear the print queue and restart your computer if the issue persists.
Cartridge Error or Ink Alert Light Onexpand_more
If the Ink Alert light is on and an Ink Level icon is blinking, a cartridge may be missing, improperly installed, or still have plastic tape covering the contacts. Remove the affected HP 63 cartridge, confirm the pull-tab tape has been fully removed, and reinsert it firmly until it clicks. If the error persists, clean the gold-colored electrical contacts on both the cartridge and inside the printer using a dry, lint-free cloth. Replace the cartridge if cleaning does not resolve the issue.
Poor Print Quality or Streaky Outputexpand_more
Start by confirming you are using genuine HP 63 or HP 63XL cartridges and that ink levels are not critically low. Check that you have selected the correct paper type and print quality in the printer software settings. Run a cartridge alignment from the printer software by clicking Print & Scan, then Maintain Your Printer, and selecting Align Cartridges. If streaks persist, print a diagnostic page and use the Clean Cartridges option in the Device Services tab to run an automatic cleaning cycle.
Wireless Connection Lost or Not Connectingexpand_more
If the Wireless light is blinking and the Wireless Attention icon appears, the printer has lost its network connection. Ensure your wireless router is powered on and that the printer is within range. Press the Wireless button and the Information button simultaneously to print a Wireless Network Test Report, which will identify the specific connection issue. You can also use the HP Print and Scan Doctor utility on Windows to automatically diagnose and repair wireless connectivity problems.
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Important Safety Instructions

  • Always turn the printer off using the Power button and wait for the light to go out before unplugging — this parks the cartridges and prevents the HP 63 printheads from drying out.
  • Check estimated HP 63 / HP 63XL ink levels regularly via the Ink Level icons on the control panel display or through the HP printer software, and keep a replacement cartridge on hand to avoid printing delays.
  • Run a cartridge alignment from the HP printer software after installing new HP 63 cartridges to ensure the best possible print quality on your DeskJet 3755.
  • Do not open or remove the plastic pull-tab tape from a replacement HP 63 cartridge until you are ready to install it — keeping the tape on reduces ink evaporation and extends shelf life.

Replacement Ink Cartridges

The HP DeskJet 3755 printer uses genuine HP 63 / HP 63XL ink cartridges. Select your cartridge below to purchase replacement cartridges on Amazon:

shopping_cart Buy HP 63 on Amazon shopping_cart Buy HP 63XL on Amazon

Technical Specifications

Feature Specification
Printer ModelHP DeskJet 3755 All-in-One
Related ModelsHP DeskJet 3700, 3720, 3752, 3772
Ink CartridgesHP 63 (standard) / HP 63XL (high yield) — Black and Tri-Color
Print TechnologyThermal Inkjet
Print SpeedVaries by document complexity; up to 8 ppm black, 5.5 ppm color (ISO)
ConnectivityWi-Fi 802.11b/g/n, Wi-Fi Direct, USB 2.0 (cable up to 3m / 10ft recommended)
FunctionsPrint, Scan, Copy (All-in-One)
Sleep ModeActivates after 5 minutes of inactivity; configurable via Embedded Web Server (EWS)
Auto-OffAutomatically powers off after 2 hours of inactivity (disabled when Wi-Fi or Wi-Fi Direct is active)
Manual / DocumentationFull PDF manual available at hp.com — covers setup, cartridge management, troubleshooting, and specs