HP OfficeJet Pro 8620 Cleaning Kit Compatibility and Printhead Maintenance

Questions:

1. What cleaning kit should I use with my HP OfficeJet Pro 8620 to unclog the ink ports?

2. Can I use your HP printer cleaning kits with BCH’s green or red cleaning solution?

3. Are the tubing, adapters, and syringes the same in all BCH cleaning kits for HP printers?

4. What is the printhead number for the HP 8620 OfficeJet Pro All-in-One printer?

5. Do HP numbers like 564, 902, 910, 920, 934, and 935 refer to printer or printhead models?

6. Are BCH cleaning kits and solutions compatible with old and new HP printer models?

7. Should the green or red cleaning solution be gently pushed through the ink ports and printhead when cleaning?

Answer:

1. What cleaning kit should I use with my HP OfficeJet Pro 8620 to unclog the ink ports?

We do not offer a specific cleaning kit designed for the HP 8620. This is because the HP 8620 uses a removable printhead (HP 950/951 series), and the configuration makes it incompatible with our standard adapters or tubing sets. While cleaning can still be done manually with general-purpose tools, we advise caution, especially when working around fragile electrical contacts and micro-nozzles. In some cases, removing the printhead and performing an external soak using a lint-free cloth and cleaning fluid may be more practical.

2. Can I use the green or red BCH cleaning solution with any BCH cleaning kit for HP printers?

Yes, you can. The green solution (for pigment ink clogs) and the red solution (for dye-based ink clogs) are compatible with all BCH cleaning kits. Just make sure you match the type of solution to the ink system in your printer—HP 8620 uses pigment ink in the black and dye ink in the color cartridges, so both solutions may be applicable depending on which channels are clogged.

3. Are the tubing, adapters, and syringes the same across all BCH HP cleaning kits?

No, they are not. The connectors, tubing diameter, and adapter shapes are tailored to the design of specific HP cartridge families. For example, HP 902 and HP 564 series cartridges require different interfaces, and using the wrong adapter may damage the cartridge or result in a poor seal. Always ensure you use the correct kit for your specific cartridge type or contact our support for guidance.

4. What is the printhead number for the HP 8620 OfficeJet Pro All-in-One printer?

The HP OfficeJet Pro 8620 uses a separate, removable printhead, typically referred to by its part number: CN643A. It is used with HP 950/951 cartridges and is known for having a long lifespan if maintained properly. However, once clogged or damaged beyond basic cleaning, replacement is usually the only option.

5. Do HP numbers like 564, 902, 910, 920, 934, and 935 refer to printer models or printhead numbers?

These numbers refer to cartridge series, not printer models or printheads. Each series is designed for a family of printers and may be associated with a specific printhead model. For example:

• HP 564 series is used in older Photosmart and Deskjet printers.

• HP 902 series fits newer OfficeJet models like 6950, 6960, and 6970.

• HP 950/951, which your 8620 uses, is in a class of its own with the CN643A printhead.

6. Are BCH cleaning kits and solutions compatible with both the oldest and newest HP printers?

Yes, for the most part. Our cleaning solutions are chemically safe for use in nearly all inkjet systems—old or new—whether pigment or dye-based. However, cleaning kits (tubing and adapters) vary by cartridge type. Newer HP models that feature cartridge-integrated printheads (like some Instant Ink models) or sealed thermal print systems may require different techniques or may not be serviceable at all.

7. Should the cleaning solution be pushed gently through the ink ports?

Absolutely. When flushing a printhead or ink port, you should always push the cleaning solution gently and gradually. Excessive pressure can rupture internal seals or damage delicate micro-nozzles. If you feel resistance, stop immediately and soak the printhead in a shallow dish with the appropriate cleaning fluid before retrying.

Addressing printer issues often requires a hands-on approach, which limits our ability to provide remote diagnostics or support for hardware repairs. However, we do offer an in-person repair and evaluation service at our local diagnostic center (https://bchtechnologies.com/printer-repair-service). Please note that this service operates on a first-come, first-served basis, and it may take a few weeks before your printer can be evaluated.

Our repair program can accommodate full printer overhauls or targeted repairs, with clear instructions throughout the process. That said, our pricing may not be suitable for all budgets. If you're a DIY enthusiast, we strongly encourage you to explore resources on platforms like YouTube, especially our BCH Technologies YouTube channel (https://youtube.com/@bchtechnologies). To find relevant tutorials, use the search bar near the “About” tab on the channel's page.

Thanks again for your thoughtful and detailed questions. Your curiosity and engagement help strengthen the broader BCH Technologies community. We're always here to help you on your printing journey!