The Honeywell PX940 is an industrial-grade label printer designed for demanding barcode and label printing applications. Like other thermal printers, its printhead is a consumable component and will eventually need to be replaced due to wear, contamination, or physical damage.
If you are looking for a Honeywell PX940 replacement printhead, it is important to confirm the correct resolution or part number before placing an order.
This guide covers:
When Does Your Honeywell PX940 Need a Printhead Replacement?
The service life of a PX940 printhead should not be judged only by how long it has been used. In practice, print quality and physical condition are more important indicators.
If the following problems remain after thorough cleaning and proper printer adjustment, the printhead may need to be replaced.
Permanent White Lines or White Spots
If labels show permanent vertical white lines or missing dots, some heating elements on the printhead may be damaged or burned out.
If cleaning the printhead and replacing the ribbon or label material does not solve the problem, a printhead replacement may be necessary.
Blurred, Faded or Uneven Printing
Text, barcodes or graphics may become blurred, faded or uneven when the printhead is worn or damaged.
Before replacing the printhead, check the ribbon and label material and clean the printhead carefully. If print quality does not improve, the printhead may be reaching the end of its service life.
Severe Surface Damage
Inspect the printhead for visible physical damage.
Deep scratches, cracks or severe damage to the protective surface can affect print quality and create uneven contact between the printhead and media. In severe cases, a damaged printhead may also increase wear on the platen roller.
Frequent Printhead Errors
Frequent printhead-related errors, overheating warnings or failure during printer self-tests can also indicate a damaged printhead or an electrical problem.
However, these symptoms can sometimes be caused by other printer components. Proper diagnosis is recommended before ordering a replacement.
Clean the Printhead Before Replacing It
Not every print-quality problem means that the printhead needs to be replaced.
Ribbon residue, label adhesive and dust can accumulate on the printhead and interfere with the heating elements. In some cases, proper cleaning can restore print quality without replacing the printhead.
Before purchasing a new PX940 printhead, we recommend cleaning the printhead and checking the printer settings first.
For detailed cleaning instructions, see our guide:
How to Clean a Barcode Printer Head Without Damaging It?
How to Identify the Correct Honeywell PX940 Printhead
Before ordering a replacement printhead for the PX940, make sure you confirm the following information:
- Printer model: Honeywell PX940
- Print resolution: 203 dpi, 300 dpi or 600 dpi
- Existing printhead part number
- Required quantity
The print resolution is particularly important because different PX940 configurations use different printheads.
If you are not sure which printhead you need, you do not have to identify it yourself.
Simply send us a photo of your existing PX940 printhead or the part number on the printhead. We can help confirm the correct replacement.
Honeywell PX940 Printhead Part Numbers
The following are common PX940 printhead configurations:
| Honeywell PX940 | Resolution | Printhead Part Number |
|---|---|---|
| PX940 | 203 dpi | 50151886-001 |
| PX940 | 300 dpi | 50141446-001 |
| PX940 | 600 dpi | 50151888-001 |
Important: Always verify the part number and resolution of your existing printhead before ordering, especially when replacing a printhead for an existing printer.
If you have any doubts, send us the printer model, print resolution or a photo of your current printhead, and we can help you confirm the correct part.
How Much Does a Honeywell PX940 Printhead Cost?
The price of a Honeywell PX940 printhead can vary depending on several factors, including:
- Print resolution
- Purchasing quantity
- Current market availability
- Purchasing channel
There is therefore no single fixed price for every PX940 printhead.
If you are purchasing several units or need a quotation for regular supply, please contact Hansprintec for the latest price and availability.
For a quick quotation, simply send us the PX940 printhead part number and required quantity.
We can check the current availability and provide a quotation based on your requirements.
How to Replace a Honeywell PX940 Printhead
Replacing a Honeywell PX940 printhead requires careful handling, particularly around the printhead contacts and print module.
The general replacement procedure is as follows.
1. Remove the Old Printhead
Open the printer cover and remove the existing printhead.
Disconnect the drive card from the printhead carefully.
2. Prepare the New Printhead
Before installation, place the four O-rings into the replacement printhead as required.
Handle the new printhead carefully and avoid touching or damaging the printhead contacts.
3. Install the New Printhead
Place the new printhead into the print module.
Make sure the positioning lock pins are correctly seated.
Pay attention to the orientation of the drive card contacts and ensure they face the correct insertion direction.
Manually tighten the upper and lower retaining screws.
Do not use an Allen wrench to over-tighten the printhead screws. Excessive tightening may damage the components.
4. Connect the Drive Card
Insert the drive card into the corresponding position and secure it properly.
Check that the connection is firm and correctly positioned.
5. Reassemble and Test
Lower the protective cover and tighten the cover screws.
Reinstall the media and turn on the printer.
Perform a test print and check whether the print quality is uniform and whether the previous printhead problem has been resolved.
Tip: During replacement, handle the printhead and print module carefully to avoid damaging the contacts or other components.
You can also refer to the following video for a visual demonstration of the PX940 printhead replacement process.
Tips to Extend the Life of Your PX940 Printhead
A printhead is a consumable component, but proper operation and maintenance can help reduce unnecessary wear and extend its service life.
1. Use the Lowest Suitable Print Temperature
Set the print temperature as low as possible while maintaining the required print quality.
Excessive heat can accelerate printhead aging and increase the risk of heating-element damage.
2. Adjust Printhead Pressure Properly
Use the minimum printhead pressure necessary to achieve consistent print quality.
Excessive pressure increases friction between the printhead and media, which can accelerate surface wear.
Insufficient pressure, on the other hand, may result in poor contact and uneven printing.
3. Avoid Excessive Print Speeds
Avoid continuously operating the printer at its maximum print speed when it is not necessary.
Using an appropriate print speed can help reduce heat and mechanical load during extended printing operations.
4. Clean the Printhead Regularly
Regular cleaning is one of the most important ways to protect a thermal printhead.
As a general maintenance practice, clean the printhead after approximately one ribbon roll or 150 meters of printing, depending on the printing environment and media used.
Before cleaning:
- Turn off the printer.
- Use a cleaning pen or a lint-free swab with high-concentration isopropyl alcohol.
- Wipe along the printhead elements in one direction.
- Avoid repeatedly rubbing back and forth.
- Remove rings or other hard objects that could scratch the printhead.
For more detailed instructions, see:
How to Clean a Barcode Printer Head Without Damaging It?
5. Clean the Platen Roller and Sensors
Dust, paper particles and adhesive residue can accumulate around the platen roller and sensors.
Regularly cleaning these components can help prevent contamination, friction and media-feeding problems that may affect the printhead.
6. Use Printhead Cleaning Film When Necessary
For heavy residue or contamination that cannot be removed through normal cleaning, a dedicated printhead cleaning film may be used according to the manufacturer’s recommendations.
Never scrape the printhead surface with sharp or hard objects.
7. Protect Against Static Electricity
Thermal printheads contain sensitive electronic components.
When handling the printhead, use appropriate anti-static precautions to reduce the risk of electrostatic discharge.
8. Use High-Quality Ribbon and Labels
The quality of your thermal transfer ribbon and labels can directly affect printhead wear.
Whenever possible, use smooth, high-quality ribbons and media to reduce friction and contamination.
The ribbon should also be properly matched to the label width.
Using a ribbon that is too narrow may leave parts of the printhead exposed to direct contact with the label material, increasing the risk of wear.
9. Keep the Printer Environment Clean
Operate the PX940 in a clean environment and keep dust, moisture and corrosive substances away from the printer.
Contamination can affect both print quality and printhead service life.
10. Avoid Prolonged High-Load Operation When Possible
For extended printing tasks, avoid unnecessary continuous high-load operation and allow the printer to cool when appropriate.
Proper operating conditions can help reduce excessive heat buildup and unnecessary stress on the printhead.
Need a Genuine Honeywell PX940 Printhead?
If your Honeywell PX940 printhead needs to be replaced, confirming the correct part number and resolution is the first step.
Hansprintec supplies Honeywell PX940 printheads for different resolution configurations.
Before ordering, simply send us:
- Your PX940 printer model
- Print resolution
- Existing printhead part number
- Required quantity
If you are not sure which printhead you need, send us a photo of your existing printhead. We can help identify the correct replacement, check current availability and provide a quotation.
Contact Hansprintec today for the latest Honeywell PX940 printhead price and availability.
Honeywell PX940 Printhead FAQ
How often does a Honeywell PX940 printhead need to be replaced?
There is no fixed replacement interval. Printhead life depends on print volume, print temperature, pressure, media, ribbon quality, cleaning frequency and operating conditions.
Replace the printhead when print quality cannot be restored through cleaning and proper adjustment, or when the printhead is physically or electrically damaged.
How do I know which PX940 printhead I need?
Check your printer’s print resolution and the part number on the existing printhead.
If you are unsure, send us a photo of your current printhead and we can help confirm the correct replacement.
Can I clean the PX940 printhead instead of replacing it?
Yes, if the problem is caused by ribbon residue, adhesive or contamination.
However, cleaning cannot repair burned-out heating elements, deep scratches, cracks or other permanent physical damage.
Where can I buy a Honeywell PX940 printhead?
When purchasing a replacement PX940 printhead, make sure the supplier can confirm the correct part number, resolution and product authenticity.
Contact Hansprintec with your PX940 part number and quantity, and we can check the current price and availability for you.
