SKU: 22241213706

920 4-Slot Printhead for 6500 6500A 7000 7500A E910A E710N B210A Print head CN643

Sale price$18.69 Regular price$20.77
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Description

920 4-Slot Printhead for 6500 6500A 7000 7500A E910A E710N B210A Print head CN643? Reufrbished 920 Printhead for HP 920 6500 6500A 7000 7500A B210A Feature: Excellent performance and high quality. Made of high quality material, durable, firm and stable for us to use. This is a cleaned, thoroughly tested and sealed Printhead. Good stability, long lifespan. Full color function. Product Condition : Original Refurbished Printhead ,95% New. Warranty : One Year Free Warranty , Life long Service. Compatible Part #'s: CN643A CD868 30001

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Reufrbished 920 Printhead for HP 920 6500 6500A 7000 7500A B210A

Feature:
Excellent performance and high quality.
Made of high-quality material, durable, firm and stable for us to use.
This is a cleaned, thoroughly tested and sealed Printhead.
Good stability, long lifespan.
Full color function.
Product Condition : Original Refurbished Printhead ,95% New.
Warranty : One Year Free Warranty , Life-long Service.
Compatible Part #'s: CN643A/CD868-30001/CD868-30002/CD869-30001
Size:85x70mm
Specifications: 4-Slot
Type:920 Printhead

Compatible Models:
for HP OfficeJet 6000 6500 6500A
for HP OfficeJet 7000 7500 7500A
for HP PhotoSmart B010 B010A B010b
for HP PhotoSmart B109 B109a B109c B109q
for HP PhotoSmart B110 B110a B110b
for HP PhotoSmart B209 B209a B209b B210 B210b
for HP PhotoSmart C410A C510A

Packing includes:
1 x print head

Note:
1.In print entered please turn off the power of the printer, or it will cause the mainboard chip burned.
After loading the print head, please don't install ribbon overhead 10 pieces of A4 document,
so that make the new needle have a running-in process, and then put the ribbon. I hope you can be careful operation.

2.If the original print head was broken and especially leaked ink, the mainboard has burned possibly,
so please troubleshoot the problem of the mainboard before replacing the print head. In addition,
the F1,F2 fuze wire of mainboard can only be replaced by the original fuze that has same current value and same model.
If replacing fuze that is biger current value and different model, Both printhead and mainboard are possible to be broken.

3.Print head requires lots of attention, It is easy to cause man-made damage if a non-professionals replace printhead blindly.
There is a regulation that printhead is not warranty, and it is delicate and expensive.
please do not make commissioning on the machine, and please treat it with caution.

4.If you are not familiar with the machine, it is recommended that you had better send the print head to a repair station
or find professionals to replace the nozzle, so as to avoid unnecessary losses and unnecessary trouble.



Warranty:
Returns: Customers have the right to apply for a return within 30 days after the receipt of the product.
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Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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SKU: 22241213706

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4.1 ★★★★★
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J
Verified Purchase
Jason Bolton
Los Angeles, US
★★★★★ 5
Great book
Format: Paperback
Great book! It is helpful as I work towards my Masters of Science in Applied Artificial Intelligence
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2025
J
Verified Purchase
James Gianoglio
Phoenix, US
★★★★★ 5
Comprehensive Guide with Practical Insights
Format: Paperback
This is a solid book for understanding the art and science of working with LLMs and other generative AI models. I always struggled with getting the output I was looking for, and wasn't sure how best to "ask" the models for what I wanted. This book did a great job of laying out the strategies and practical guidance to craft the prompts. There were a lot of tips and tricks, but the overall understanding and framework around prompt engineering has been super useful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 25, 2024
M
Verified Purchase
Matt B
Waukegan, US
★★★★★ 5
A must read!
Format: Paperback
Hands down, the best book on prompt engineering and implementing LLMs. Really enjoyed Michael and James deep dive. Whether you're technical or not, this book is foundational to a deeper understanding in how to properly explore and implement LLMs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 25, 2024
S
Verified Purchase
SR
Battle Creek, US
★★★★★ 4
Helpful for GPT/LangChain framework
Format: Paperback
I applaud the authors for putting forth a comprehensive introduction in a rapidly evolving space. I absorbed a lot, helpful as I was developing a prototype — using open source methods. And that’s where I was disappointed. The LLM and examples are highly adapted to OpenAI’s GPT-x and the bulky LangChain framework, something not obvious until you dig in to the book. Sure, this may be where newbie demand was when the authors began writing. But as the open source models and OpenAI alternatives gain speed (e.g. Llama 3.1, Groq, etc.) this book may quickly need an updated and expanded version to stay relevant.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 7, 2024
K
Verified Purchase
K. Wain
Lowell, US
★★★★★ 3
Good concepts, but uneven depth
Format: Paperback
Some helpful prompt frameworks, but parts felt repetitive and a few sections stayed too high-level for advanced users. Beginners will likely benefit more than experienced practitioners. If you’re new to prompt engineering it’s a decent starting point; if you’re already building structured prompts daily, it may feel light.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026

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