Package Included:
Package: 1xBlack (1 BK), C4820A ,1 pcs

100% compatible with the following printers:
. HP Designjet 1050c 1050c Plus 1055cm 1055cm Plus Printer

Installation Steps:
Step 1: Please remove the cover and the protective film of the print head before installation.
Step 2: Open the printer cap and ink cartridge;
Step 3: Press the screen button "Change the print head";
Step 4: The printer clip move to stay left automatically;
Step 5: Open the print head clip, take out the defect print head;
Step 6: Set up the new remanufactured print head;
Step 7: Lid the print head cap;
Step 8: After lid the print head cap, it will take around 20 minutes to ready for printing process.

Warranty Card:
We will send a Warranty Card to you with shipment. We stated below on the card:
◆ Money Back Rule in case any defect;
◆ Normal Printing Problem Solution.

Note:
1. Our print head is remanufactured, not original one, Non OEM value-save more for you;
2. Please shake the print head before installation, it will avoid bubble problem in the ink. Kindly note the bubble in the ink will cause your printer can't print well.
3. When you replace the print head, please do Printer Head Cleaning 2~3 times every time.

After-sales Service / How to contact us(3 Months Money Back Warranty):
Product listing > Click Sold by Lucky Bridge> Choose the option Ask a question
Log into Your Account > Click Your Account > Your Order > Find your order and click Contact Seller