---
title: "Hp Deskjet 3755 Troubleshooting"
canonical: "https://gadgetguides.org/hp-deskjet-3755-troubleshooting/"
author: "Arian"
published: "2026-09-12T23:17:24+00:00"
modified: "2026-09-12T23:17:24+00:00"
language: "en-US"
site: "Gadget Guides"
description: "Your HP Deskjet 3755 is acting up. Maybe it's blinking a mysterious light pattern, showing \"offline\" when you know it's connected, or chewing up paper…"
categories: "Help Guide"
attribution: "Gadget Guides (https://gadgetguides.org/)"
---

# Hp Deskjet 3755 Troubleshooting

Your HP Deskjet 3755 is acting up. Maybe it's blinking a mysterious light pattern, showing "offline" when you know it's connected, or chewing up paper like it's got a grudge. You want it fixed fast without generic advice that misses the real problem.

 

That's exactly what this guide is for. We're skipping the usual laundry list and building a real troubleshooting path based on how these printers actually fail. HP's own documentation shows that roughly 70% of Deskjet 3755 issues fall into just four symptom categories.

 

As of 2026, the fix for each one is well documented and usually takes under 15 minutes.

 

## Quick Answer

 

HP Deskjet 3755 troubleshooting means matching your symptom to the right fix. Identify the blinking light pattern first. Power light flashing means a hardware error.

 

Cartridge light flashing means ink trouble. Printer offline usually means a Wi-Fi or driver glitch. Paper jams happen in predictable spots.

 

Most fixes take under 15 minutes.

 

![HP Deskjet 3755 printer](https://gadgetguides.org/wp-content/uploads/2026/09/hp-deskjet-3755-printer-mtz0939d.webp)

 

Image source: Bing (Web (fair-use with source credit))

 

## Symptom #1: Flashing Lights and What They Mean

 

The HP Deskjet 3755 communicates through its power button light. It blinks in specific patterns, and each pattern points to a different problem. Learn to read those patterns, and you skip straight to the right fix.

 

The printer uses two lights. The power button light sits on the front panel. The ink cartridge light sits below it.

 

They can blink together, separately, or in sequence.

 

**Power light blinking slowly.** This usually means the printer is warming up or processing a job. Give it 30 seconds. If it keeps blinking, you have a paper jam or the printhead is stuck.

 

**Power light blinking fast.** This is a hardware error. The printer detected something wrong internally. Start with a full power drain.

 

Unplug the power cord from the wall and the printer. Wait 60 seconds. Plug it back in.

 

If the fast blink returns, the printhead or motherboard may need replacement.

 

**Both lights blinking.** The printer is in an error state it cannot resolve. This often happens after a failed firmware update or a serious paper jam. Try the power drain first.

 

If that does not work, use the HP Print and Scan Doctor tool on Windows to run a diagnostic.

 

**Cartridge light blinking only.** The printer cannot read one or both ink cartridges. This is almost always a contact or detection issue, which we cover in Symptom #4.

 

![HP Deskjet 3755 blinking light troubleshooting](https://gadgetguides.org/wp-content/uploads/2026/09/hp-deskjet-3755-blinking-light-troubleshooting-mtz095l1.webp)

 

Image source: Bing (Web (fair-use with source credit))

 

Here is a quick reference table for the light patterns.

 

| Light Pattern | What It Means | First Step |
| --- | --- | --- |
| Power light slow blink | Warming up or minor jam | Wait 30 seconds |
| Power light fast blink | Hardware error | Power drain, 60 seconds |
| Both lights blinking | Unresolved error state | HP Print and Scan Doctor |
| Cartridge light blinking | Cartridge recognition failure | Remove and reseat cartridges |
| Both lights off | No power or sleep mode | Check power connection |

 

**What to do if the pattern does not match.** Some users report a double-blink cycle or an alternating pattern. That usually means the printer board is failing. If you have tried all standard fixes and the lights remain erratic, the printer may be beyond economical repair.

 

The Deskjet 3755 is a budget device. Replacing it often costs less than a service call.

 

## Symptom #2: Printer Shows "Offline" or Won't Connect

 

This is the single most common complaint for the HP Deskjet 3755. The printer shows up as "offline" in your computer's settings even though it is powered on and connected to Wi-Fi. The fix depends on whether the problem is on the printer side or the computer side.

 

**First, check the printer's network status.** On the printer itself, press the wireless button. The light above it should be solid blue. If it is blinking, the printer is not connected to your router.

 

Run the wireless setup wizard from the printer's menu. You can find it under Settings, then Network, then Wireless Setup.

 

**If the wireless light is solid but your computer says offline.** The issue is likely in your computer's print queue. Open your printer settings. Find the Deskjet 3755.

 

Right-click it and select "See what's printing." A window opens showing queued jobs. Click Printer at the top and make sure "Use Printer Offline" is unchecked. This is the most common cause of the offline status.

 

**Still offline after that.** Restart the Print Spooler service on Windows. Press Windows Key plus R, type "services.msc," and hit enter. Find "Print Spooler" in the list.

 

Right-click it and select Restart. This clears any stuck print jobs and forces the system to re-detect the printer.

 

**If none of that works.** The printer and your computer might have lost IP address sync. Go into your printer's network settings and look for the IP address. Write it down.

 

On your computer, add the printer using that IP address manually. On Windows, go to Devices and Printers, click Add a Printer, select "Add a printer using an IP address or hostname," and enter it. This bypasses automatic discovery and often reconnects a stubborn offline printer.

 

**Wi-Fi keeps dropping.** The Deskjet 3755 uses 2.4 GHz Wi-Fi only. If your router broadcasts both 2.4 GHz and 5 GHz on the same network name, the printer may struggle. Log into your router settings and create a separate 2.4 GHz network for the printer.

 

This solves about 80% of intermittent connection issues according to HP support documentation.

 

## Symptom #3: Paper Jams (Even When Paper Looks Fine)

 

The HP Deskjet 3755 is a compact printer. Its small paper path means jams happen more often than on larger office machines. Clearing them is straightforward once you know where to look.

 

**Check the front input tray first.** Remove the paper stack entirely. Look inside the tray opening for crumpled bits. A single torn corner can stop the printer.

 

Use a flashlight to see deep into the feed rollers.

 

**Open the rear access panel.** This is the most important step. The Deskjet 3755 has a small panel on the back. Press the tab and pull it open.

 

You will see the rollers and the back of the paper path. Gently pull out any paper you see. Pull in the direction the paper was moving, not backward.

 

Pulling backward can damage the rollers.

 

![HP Deskjet 3755 paper jam fix](https://gadgetguides.org/wp-content/uploads/2026/09/hp-deskjet-3755-paper-jam-fix-mtz09644.webp)

 

Image source: Bing (Web (fair-use with source credit))

 

**Open the cartridge access door.** Sometimes jammed paper wraps around the ink cartridge carriage. Lift the scanner unit to access the cartridges. If you see paper inside, carefully pull it free.

 

Be gentle near the cartridge contacts.

 

**Common jam locations and what to check.**

 

| Jam Location | What Usually Causes It | How to Clear It |
| --- | --- | --- |
| Front input tray | Curled or thin paper | Remove stack, pull jam forward |
| Rear access panel | Paper folded during feed | Open rear door, pull paper out |
| Under cartridge carriage | Jam from a misfeed | Open scanner unit, pull paper free |
| Output tray | Paper stuck exiting | Lift tray, pull straight down |

 

**Why it keeps jamming.** If you clear a jam and the printer jams again on the next page, the problem is usually the paper itself. The Deskjet 3755 works best with 20 lb or 24 lb paper. Anything thinner curls easily.

 

Anything thicker puts stress on the rollers. Also check that the paper guides in the input tray are snug against the stack. A loose guide lets paper shift and cause a diagonal feed.

 

**After clearing the jam.** Run a test print. If the printer still reports a jam, there may be a torn piece stuck deep in the rollers. Shine a light through the rear access door while slowly turning the rollers by hand.

 

Remove any fragments with tweezers.

 

## Symptom #4: Ink Cartridge Errors and Print Quality Problems

 

The HP Deskjet 3755 uses HP 63 black and HP 63 tri-color cartridges. These are standard cartridges with a small ink capacity. Cartridge errors and print quality issues are the second most common reason people seek HP Deskjet 3755 troubleshooting help.

 

**Cartridge not detected.** The printer may say "One or more cartridges missing or damaged" even when they are installed. This is almost always a contact issue. Remove both cartridges.

 

Look at the copper-colored contacts on each cartridge and inside the printer. If they look dirty, clean them with a dry lint-free cloth. Do not use water or alcohol.

 

Reinstall the cartridges and push them firmly until they click.

 

**Non-HP ink warning.** If you use third-party or refilled cartridges, you will see a message saying the printer cannot guarantee the quality. This is normal. The printer still works.

 

If it refuses to print entirely, open the HP Smart app and look for a setting that says "Allow third-party cartridges." Not all firmware versions have this option.

 

**Streaks or missing colors in printout.** This means one of the nozzles is clogged. Run the printhead cleaning cycle from the HP Smart app. Go to Printer Settings, then Tools, then Clean Printhead.

 

It takes about two minutes. Print a test page after each cycle. You may need two or three cycles if the clog is stubborn.

 

**If cleaning does not work.** The cartridge may be out of ink even if the printer says it has some left. HP 63 standard cartridges yield about 190 black pages and 165 color pages. Replace the cartridge.

 

If both cartridges are new and you still get streaks, the printhead is failing. On the Deskjet 3755, the printhead is built into the cartridge assembly. Replacing the cartridges replaces the printhead.

 

**Faded prints on both black and color.** Check your print settings. The printer may be set to "Draft" or "Fast" mode. Change it to "Normal" or "Best" in your print dialog.

 

Also check the paper type setting. If you set it to "Plain Paper" but use photo paper, the printer applies less ink to prevent bleeding.

 

| Symptom | Likely Cause | Fix |
| --- | --- | --- |
| "Cartridge missing" error | Dirty contacts | Clean with dry cloth |
| Streaks in one color | Clogged nozzle | Run cleaning cycle |
| Faded entire page | Draft mode setting | Change to Normal quality |
| Blurry text or edges | Misaligned cartridges | Run alignment from HP Smart |
| Colors look wrong | Low ink in one cartridge | Replace tri-color cartridge |

 

## Symptom #5: Printer Won't Turn On or Suddenly Dies Mid-Print

 

This symptom is less common but more alarming. The printer shows no lights at all, or it powers off during a print job. Most people assume the power supply died.

 

That is possible, but there are cheaper things to check first.

 

**Check the power cord connection.** The Deskjet 3755 uses a detachable power cord. It can wiggle loose from both the printer and the wall. Push it firmly into the printer's rear port.

 

Then check the wall end. If it is plugged into a power strip, test the strip with another device.

 

**Try a different outlet.** Move the printer to a wall outlet you know works. If it powers on there, your original outlet or power strip is the problem. A basic power strip works fine for this printer.

 

**Perform a full power drain.** Unplug the power cord from the wall. Press and hold the power button on the printer for 30 seconds. This drains residual charge from the internal capacitors.

 

Plug the cord back in and try turning it on. This resets the printer's internal power circuitry and fixes about half of all no-power issues.

 

**If the printer dies mid-print.** This usually means the power supply is overheating or failing. Check that the printer has ventilation space. The Deskjet 3755 should have at least four inches of clearance on all sides.

 

If it sits in an enclosed shelf, move it to an open area. Try printing a shorter document. If it still dies, the power supply board inside the printer needs replacement.

 

That is usually not economical for this model.

 

**When to call it.** A new HP Deskjet 3755 costs around 60 to 80 dollars. A replacement power supply costs 20 to 30 dollars if you can find one. If the printer shows no signs of life after a power drain and a known good outlet, the motherboard is likely dead.

 

Replace the printer rather than repair it.

 

## Common Mistakes That Make Things Worse

 

Some well-meaning troubleshooting steps actually cause more problems. Avoid these common errors.

 

**Using the wrong paper.** The Deskjet 3755 jams easily with thin, thick, or curled paper. Stick to 20 lb or 24 lb plain paper. Store it flat in a dry place.

 

Damp paper causes misfeeds and streaks.

 

**Overcleaning the printhead.** Running the cleaning cycle more than three times in a row wastes ink without fixing clogs. Let the printer rest for an hour between attempts. If three cycles do not work, replace the cartridge.

 

**Ignoring the power drain.** Many hardware errors clear with a simple power drain. Skipping this step and assuming a hardware failure leads to unnecessary replacements. Always try the drain first.

 

**Using compressed air on cartridge contacts.** Compressed air cans often release moisture. This moisture can short the electrical contacts on the cartridge. Stick to a dry cloth.

 

**Forgetting to update firmware.** The HP Smart app prompts you when firmware updates are available. These updates fix known bugs, including connectivity issues and error code problems. Ignoring them leaves known problems unfixed.

 

## Frequently Asked Questions

 

### How do I reset my HP Deskjet 3755 to factory settings?

 

Press and hold the wireless button and the cancel button simultaneously for three seconds. The printer resets network settings and clears stored network profiles. You will need to set up Wi-Fi again after the reset.

 

### Why does my HP Deskjet 3755 keep going offline?

 

The most common cause is the "Use Printer Offline" setting being checked in your computer's print queue. Uncheck it. If that does not work, restart the Print Spooler service or add the printer manually using its IP address.

 

### Can I use third-party ink cartridges in the HP Deskjet 3755?

 

Yes, but the printer may show a non-HP ink warning. Some firmware versions block printing with third-party cartridges entirely. Check the HP Smart app for a setting to allow third-party ink.

 

Results vary by cartridge brand.

 

### How do I clean the printhead on my HP Deskjet 3755?

 

Open the HP Smart app on your phone or computer. Go to Printer Settings, then Tools, then Clean Printhead. Run the cycle once and print a test page.

 

Repeat if streaks remain. Do not run more than three cycles in a row.

 

### What should I do if the power light blinks fast and nothing prints?

 

Perform a full power drain. Unplug the printer, hold the power button for 30 seconds, then plug it back in. If the fast blink returns, you likely have a hardware failure.

 

The printer may need replacement.

 

### How do I connect my HP Deskjet 3755 to a new Wi-Fi network?

 

Press the wireless button on the printer. Open the HP Smart app and select Set Up a New Printer. Follow the on-screen instructions.

 

You can also run the wireless setup wizard from the printer's Settings menu under Network.