This Compatible Printhead is also known by the following Part : JA99501-0 & JA995010Our Citizen OEM Equivalent Printhead works in the following printer models: Citizen: CLP-4121 & T4Our Warranty is the same as Citizen's warranty. Our New Citizen thermal printhead is available for shipment worldwide. This is a Genuine Citizen Compatible Printhead. Genuine OEM Quality in a Non-Branded Box. This is not a rebuilt and not a re-manufactured Printhead - BRAND New, and GENUINE