The printhead hp C4812A (№11) Magenta (Code: 2089)

The printhead hp C4812A (№11) Magenta

Compatible with HP DesignJet 100 / 110plus, 500 and 800 series, 815mfp
Compatible with HP DesignJet Copier cc800ps
Compatibility DesignJet Scanner 4200
Compatible with hp Business Inkjet 1100, 2200, 2230, 2250, 2250TN, 2280, 2280tn, 2300, 2600, 2600dn
Compatible with hp Color Inkjet cp1700, cp1700d, cp1700ps
 

For models:

 Business InkJet-1100, Business InkJet-1200, Business InkJet-2200, Business InkJet-2230, Business InkJet-2250, Business InkJet-2280, Business InkJet-2300, Business InkJet-2600, Business InkJet-2800
DesignJet-100, DesignJet-110, DesignJet-111, DesignJet-120, DesignJet-500, DesignJet-510, DesignJet-70, DesignJet-800, DesignJet-815, DesignJet-820
InkJet Printer-CP1700
OfficeJet-9110, OfficeJet-9120, OfficeJet-9130, OfficeJet Pro-K850

Source, p. 24000
Print Technology HP Thermal Inkjet
Print Color Magenta
Compatible ink types Water-based
Ink drop size: 4 pl
HP 11 Cyan Printhead (C4811A) MSDS www.hp.com/hpinfo/globalcitizenship/environment/productdata/pdf/ij_c4811a_au_eng_v10.pdf

If the head does not work, then:

If the head is not bought one, then insert one. Replacing the original head.
Wipe on the head, which is not determined by the printer, the contacts on the chip eraser.
If does not work, move the chip to the original head.
If not help, update the firmware in the printer. Download the firmware to the HP official site
 The printhead recovery. Warranty checked.