# 1-866-203-7571 How to Fix Brother MFC-J4335DW Not Printing Issue

**Brother printer support at 1-866-203-7571**

The **Brother MFC-J4335DW** is one of the most reliable all-in-one inkjet printers from Brother’s INKvestment series. It is known for affordable printing, crisp text quality, and wireless functionality. However, like any printer, you may occasionally face problems—especially the frustrating **“Brother MFC-J4335DW not printing”** issue.

The “not printing” problem can happen suddenly or gradually. Sometimes the printer shows an error message; other times, it simply does nothing when you try to print. The good news is that this problem can be fixed quickly if you understand what is causing it.

This **3000-word in-depth guide** explains:

* Every possible cause of **Brother MFC-J4335DW not printing**
* Step-by-step troubleshooting methods for **Windows, Mac, WiFi, USB, ink, paper, and internal settings**
* Preventive tips to avoid future printing failures
* A dedicated support line **1-866-203-7571** if you need professional assistance

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# **1. Common Reasons Why Brother MFC-J4335DW Is Not Printing**

Before you jump into fixes, it’s helpful to understand *why* your printer stops printing. The issue typically comes from one of these areas:

## **1.1 Printer Not Connected Properly**

This includes:

* Weak WiFi connection
* Printer offline
* USB cable not recognized
* Printer not added correctly in Windows/Mac

## **1.2 Ink Cartridge or Printhead Problems**

* Ink levels are low or empty
* Non-genuine ink causing blockage
* Cartridges not installed properly
* Printhead clogged

## **1.3 Paper Jam or Tray Issues**

* Paper stuck inside rollers
* Incorrect paper type
* Tray not seated properly

## **1.4 Incorrect Printer Settings**

* Wrong printer selected
* Printer paused
* Job stuck in queue
* Duplex or paper size mismatch

## **1.5 Outdated or Corrupt Printer Drivers**

Drivers affect communication between your computer and printer.
Corrupted drivers = printing stops.

## **1.6 Firmware Glitches**

If the firmware is outdated or corrupt, printing may freeze.

## **1.7 Network Firewall or Antivirus Blocking Printer**

Some network firewalls stop the printer from communicating with your PC.

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# **2. Quick Fixes to Try First (Easy & Fast)**

Before going into advanced techniques, try these quick troubleshooting steps:

### **2.1 Restart Everything**

Restart:

* Printer
* WiFi router
* Computer

This clears temporary glitches.

### **2.2 Check WiFi Signal**

If the printer is far from your router, you may face connection drops.
Move it within 5–10 meters for stable connectivity.

### **2.3 Make Sure The Printer Is On and Ready**

Check display for warnings like:

* “Ink low”
* “Paper jam”
* “Cannot detect cartridge”

### **2.4 Use the Brother Print & Scan App**

Sometimes printing works directly through the mobile app.

If none of these solves your problem, continue through the step-by-step guide below.

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# **3. Step-by-Step Solutions to Fix Brother MFC-J4335DW Not Printing**

Below are detailed steps to fix the issue based on the cause.

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# **4. Fix Network & Connectivity Issues**

## **4.1 Ensure the Printer Is Connected to WiFi**

### **Step 1: Check WiFi Status on Printer Panel**

Press:
**Menu → Network → WLAN → Setup Wizard**

The printer should detect your WiFi network.
If connected, the screen will show **“Connected”**.

### **Step 2: Reconnect to WiFi**

If not connected:

* Select your WiFi network (SSID)
* Enter password
* Confirm connection

### **Step 3: Print Network Report**

Go to:
**Menu → Print Reports → Network Config**

Ensure:

* Status: **Connected**
* Signal strength: At least **70%**

## **4.2 Make Sure Your Computer Is on the Same Network**

If the PC uses Ethernet and printer uses WiFi, ensure both networks share the same router.

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# **5. Fix “Printer Offline” Issue**

Often, MFC-J4335DW appears offline even though it's turned on.

## **5.1 On Windows**

1. Open **Control Panel → Devices and Printers**
2. Right-click Brother MFC-J4335DW
3. Select **See what’s printing**
4. Click **Printer** on the top menu
5. Ensure:

* “Use Printer Offline” is **NOT** checked
* “Pause Printing” is **NOT** checked

## **5.2 On Mac**

1. Open **System Settings → Printers & Scanners**
2. Select **Brother MFC-J4335DW**
3. Click **Resume** if paused
4. Remove & re-add the printer if needed

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# **6. Fix Printing Queue Stuck Issue**

Sometimes print jobs get stuck, preventing new jobs from printing.

## **6.1 Clear Print Queue – Windows**

1. Press **Win + R**
2. Type `services.msc`
3. Scroll to **Print Spooler**
4. Right-click → **Restart**

Alternatively:

* Go to **Control Panel → Devices & Printers**
* Right-click printer → **Cancel all documents**

## **6.2 Clear Print Queue – Mac**

1. Open **System Settings → Printers**
2. Select Brother printer
3. Click **Open Print Queue**
4. Cancel all print jobs

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# **7. Fix Ink Cartridge Problems**

Ink issues are common:

## **7.1 Check Ink Levels**

On printer panel:
**Ink → Ink Volume**

If any cartridge is empty, the printer will **NOT** print.

## **7.2 Reinstall Cartridges**

Open the ink compartment:

* Remove cartridges
* Reinsert firmly
* Confirm the click sound

## **7.3 Use Genuine Brother Ink**

Third-party ink may cause:

* Printhead blockage
* Cartridge recognition errors
* Poor print quality

If using non-genuine ink, replace with genuine.

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# **8. Clean Printhead to Fix Not Printing Issue**

Clogged printhead = blank pages or faded printing.

## **8.1 Automatic Printhead Cleaning**

1. Press **Menu**
2. Go to:
**Ink → Cleaning**
3. Select: **Black / Color / All**

Run the cleaning **2–3 times**, not more than 5 to avoid ink waste.

## **8.2 Print Test Page**

Menu → Print Reports → Print Quality

If lines are missing, repeat cleaning.

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# **9. Fix Paper Feeding, Jam, and Tray Problems**

Paper issues also cause printing problems.

## **9.1 Check for Paper Jam**

Open:

* Rear tray
* Front tray
* Inside lid

Remove any jammed paper gently.

## **9.2 Use Correct Paper Type**

Use:

* 75–90 GSM A4 or Letter
* Avoid wrinkled or curled paper

## **9.3 Check Paper Tray**

Make sure:

* Paper is aligned
* Tray is inserted completely

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# **10. Fix Driver and Software Issues**

Drivers are essential. A corrupted driver = no printing.

## **10.1 Update Printer Drivers – Windows**

1. Visit Brother support website
2. Search **MFC-J4335DW**
3. Download:

* Full Driver Package
4. Install and restart PC

## **10.2 Update Printer Drivers – Mac**

Mac updates drivers automatically:

* Go to **System Settings → Software Update**
* Install any printer-related update

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# **11. Fix USB Connection Problems**

If using USB instead of WiFi:

## **11.1 Use Original Cable**

Cheap cables cause communication failure.

## **11.2 Try a Different USB Port**

Use a USB 2.0 port (not 3.0) if possible.

## **11.3 Reinstall USB Driver**

1. In **Control Panel**, remove printer
2. Disconnect USB
3. Reconnect and reinstall driver

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# **12. Fix Firewall or Antivirus Blocking Issues**

Some firewalls block network printing services.

## **12.1 Whitelist Brother Services**

Whitelist:

* Brother Network Ports
* Brother software
* `brmfccu.exe`
* `brprint.exe`

## **12.2 Temporarily Disable Firewall**

If printing works afterwards → whitelist printer permanently.

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# **13. Update Printer Firmware**

Firmware bugs can freeze printing.

## **Steps:**

1. Open **Brother Mobile Connect** app
2. Go to **Printer Settings → Firmware Update**
3. Install latest update

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# **14. Factory Reset Brother MFC-J4335DW (Last Resort)**

### **Steps:**

1. Press **Menu**
2. Select:
**Initial Setup → Reset → All Settings**
3. Confirm reset

Then reconnect WiFi and reinstall drivers.

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# **15. Mechanical Issues That Prevent Printing**

These require inspection:

* Faulty printhead
* Damaged rollers
* Defective logic board
* Pump unit failure

If cleaning does not work, contact support at **1-866-203-7571**.

**Brother printer support at 1-866-203-7571**

# **16. Preventive Tips to Avoid Printing Problems**

### **✓ Print one test page weekly**

Prevents ink drying.

### **✓ Use the printer regularly**

Inkjet printers need frequent usage.

### **✓ Keep printer away from dust and heat**

Protects printhead and sensors.

### **✓ Update drivers and firmware monthly**

### **✓ Use high-quality paper and genuine ink**

**Brother printer support at 1-866-203-7571**

# **17. When to Call Professional Support (1-866-203-7571)**

Call experts if:

* Printhead remains clogged after multiple cleanings
* Printer shows error codes like 4F, B200, cannot detect ink
* Your printer prints blank pages
* The printer won’t connect to WiFi even after reset
* Firmware update gets stuck
* Mechanical failure suspected

Certified Brother technicians are available at **1-866-203-7571**.

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# **18. Conclusion**

The **Brother MFC-J4335DW not printing** issue usually comes from:

* WiFi disconnection
* Driver errors
* Print queue blockage
* Ink/printhead issues
* Paper jams

By following the step-by-step instructions in this guide—checking connectivity, clearing queues, updating drivers, reinstalling ink, and cleaning the printhead—you can solve nearly all printing issues at home.

If none of these methods work, it may be a hardware problem requiring expert diagnosis. For fast help, you can contact **Brother printer support at 1-866-203-7571**.