Feature: 1. ABS Materials: Print head is made of high quality ABS materials, lightweight, rust resistant, fade resistant and durable. 2. Stable Performance: Print head replacement offers stable performance and high reliability, suitable for replacing broken units. 3. Applicable Model: Compatible with R260, R390, 1390, L1800, 1400, 1430, and 1500W printers. 4. Guaranteed Quality: 100% functional testing completed after production and before delivery to ensure quality. 5. Good Workmanship: Precision manufacturing with refined design for reliable performance and improved user experience. Specification: Item Type: Print Head Material: ABS Color: in pictures Weight: Approx. 95g / 3.4oz Application: Designed for use with R260, R390, 1390, L1800, 1400, 1430, and 1500W printers. Package List: 1 x Print Head Note: 1. Soft clog repair: Soft clogs are caused by increased ink viscosity at the nozzle, sometimes only adhering to the nozzle surface. These may be cleared by soaking in original ink and cleaning multiple times. Use the printer driver’s built-in print head cleaning function for best results. 2. Hard clog repair: - Immersion method: For light clogs. Place print head in a container with 95% organic solvent alcohol, ensuring the alcohol covers the stainless steel edge but does not contact the PCB board. Soak for 2 hours to 4 days. - Pressure cleaning method: For severe clogs. Use a disposable infusion set tubing or needle to connect a syringe to the ink supply port (ensure tight seal). Submerge print head outlet in 95% organic solvent alcohol and gently draw alcohol through the nozzles several times. Apply consistent, gentle pressure to avoid damage. This method delivers effective cleaning results for most clogged print heads. Proper tool assembly and handling are required; professional assistance or technical skill is recommended for best results.