Resolving Ink Cartridge Issues on HP Envy 7640: A Detailed Troubleshooting Guide
- By Kevin Day
- On Nov 30, 2024
- Comment 0
Question:
I purchased the modification kit for making spongeless HP Cartridges earlier this year but didn’t install it until May. After following your video instructions to install the sponges and covers, I used genuine HP 62 cartridges that had previously worked. However, after adding ink, the printer displayed the error. I tried troubleshooting steps like cleaning parts, running maintenance cycles, and adjusting the cartridge positioning, but nothing worked.
To test the printer, I used empty genuine cartridges, which the printer recognized, proving the issue was with the modified cartridges. I even transferred chips and reflective strips from functional cartridges to the modified ones, but the printer still gave errors. Manually filling a black cartridge worked perfectly, confirming the modified cartridges were the problem. I’d appreciate any advice on resolving this issue.
Answer:
Thank you for contacting us about this issue! I sincerely apologize for the delay in responding. I understand how urgent printer problems can feel, and I want to treat your concerns with the care and detail they deserve. At BCH Technologies, we appreciate your engagement and support, especially your interest in our YouTube channel (https://youtube.com/@bchtechnologies). Your feedback helps us refine our expertise and provide better solutions.
Let’s dive into the troubleshooting process for the "Ink Cartridges Problem" error you’ve encountered with your HP Envy 7640.
Given the high demand, we operate on a first-come, first-served basis. Drop off or mail in your printer might take a few weeks. Our services include repairing the entire printer or specific parts, with clear instructions for mail-in or local drop-off options. However, we acknowledge that our rates could be more economical.
Thus, we highly recommend exploring self-help options via online research. Start by using YouTube's search function to locate relevant videos on our YouTube channel (https://youtube.com/@bchtechnologies) or other trusted sources. Our channel hosts a wealth of tutorials, and YouTube’s algorithm might also recommend helpful videos from different creators.
I purchased the modification kit for making spongeless HP Cartridges earlier this year but didn’t install it until May. After following your video instructions to install the sponges and covers, I used genuine HP 62 cartridges that had previously worked. However, after adding ink, the printer displayed the error. I tried troubleshooting steps like cleaning parts, running maintenance cycles, and adjusting the cartridge positioning, but nothing worked.
To test the printer, I used empty genuine cartridges, which the printer recognized, proving the issue was with the modified cartridges. I even transferred chips and reflective strips from functional cartridges to the modified ones, but the printer still gave errors. Manually filling a black cartridge worked perfectly, confirming the modified cartridges were the problem. I’d appreciate any advice on resolving this issue.
Answer:
Thank you for contacting us about this issue! I sincerely apologize for the delay in responding. I understand how urgent printer problems can feel, and I want to treat your concerns with the care and detail they deserve. At BCH Technologies, we appreciate your engagement and support, especially your interest in our YouTube channel (https://youtube.com/@bchtechnologies). Your feedback helps us refine our expertise and provide better solutions.
Let’s dive into the troubleshooting process for the "Ink Cartridges Problem" error you’ve encountered with your HP Envy 7640.
Diagnosing the Cartridge Issue
Step 1: Check Cartridge and Printer Connections
Start by ensuring a proper connection between the cartridge and the printer:- Inspect the Electronic Ribbon: Remove the cartridge and examine its electronic ribbon. Look for ink stains, glue residue, or other contaminants. If found, clean gently with a paper towel or lint-free cloth.
- Clean Printer Pins: The printer's brass pins that contact the cartridge must also be clean and dry.
- Re-seat the Cartridge: Insert and remove the cartridge several times to ensure proper alignment and contact. Often, after removing or modifying covers, the cartridge’s height may slightly differ from what HP expects, requiring minor adjustments.
Step 2: Assess the Cartridge's Condition
If the issue persists, the cartridge itself might be faulty. Here’s why:- HP cartridges are engineered for single use, and the internal heating process they rely on can degrade over time.
- Inside, a reference resistor helps monitor nozzle performance. If resistance discrepancies between the resistor and nozzles exceed the printer's tolerance, the cartridge is deemed unusable. This cannot be fixed, so the cartridge must be replaced.
Step 3: Use Empty Virgin Cartridges
For future refilling projects:- Search for "empty virgin" cartridges specific to your model (e.g., "HP 62 empty virgin cartridges") on platforms like eBay. Virgin cartridges have never been refilled, making them ideal for DIY projects.
- Avoid Remanufactured Cartridges: These often come with outer chips that overwrite the OEM chip. These chips are prone to failure when exposed to moisture and are less reliable for modification.
Addressing the Modified Cartridge Challenge
Your attempt to transfer chips and modify cartridges demonstrates admirable DIY skills! However, success heavily depends on precise execution and proper materials. Based on your description:- The reflective strips and chip transfer may not have made consistent contact with the printer's pins, leading to recognition failure.
- Instead of modifying old cartridges, starting with virgin cartridges may yield better results.
Generic Guidance and Next Steps
Addressing printer issues can be complicated due to the hands-on nature of the problems. Therefore, we cannot provide remote troubleshooting, suggestions, or support for printer repairs. We offer an in-person evaluation and repair service via our local diagnostic facility (https://bchtechnologies.com/printer-repair-service).Given the high demand, we operate on a first-come, first-served basis. Drop off or mail in your printer might take a few weeks. Our services include repairing the entire printer or specific parts, with clear instructions for mail-in or local drop-off options. However, we acknowledge that our rates could be more economical.
Thus, we highly recommend exploring self-help options via online research. Start by using YouTube's search function to locate relevant videos on our YouTube channel (https://youtube.com/@bchtechnologies) or other trusted sources. Our channel hosts a wealth of tutorials, and YouTube’s algorithm might also recommend helpful videos from different creators.