Bring your Epson scanner back to life with the Genuine Epson Contact Image Sensor (CIS) Unit, model FA-4A603 / CA-4BGB. This original 17-pin scanner head and lamp assembly provides exceptional image clarity, accurate color reproduction, and consistent illumination across the full scan width. This CIS unit is widely used in Epson desktop-sized printers with a standard scan width of 8.5 inches. It’s also compatible with wide-format EcoTank models like the ET-8550 and ET-15000, which can scan documents up to 8.5″ × 14″ (legal size) — providing extended versatility for users who scan larger pages, artwork, or detailed photo prints. Whether you’re replacing a failing scanner lamp or restoring an all-in-one printer’s scanning precision, this genuine Epson part ensures professional-grade performance and long-lasting reliability. Key Specifications ✔ Model: FA-4A603 / CA-4BGB ✔ Type: Contact Image Sensor (CIS) Unit ✔ Function: Scanner Head & Lamp Assembly ✔ Pin Configuration: 17-pin ✔ Regular Scan Width: 8.5″ (standard for most Epson desktop printers) ✔ Maximum Scan Size (ET-8550 / ET-15000): 8.5″ × 14″ (legal size) ✔ Compatibility: Fits a wide range of Epson EcoTank and Expression printers — including ET-8550, ET-15000, ET-2750, XP-4105, and more (verify model before purchase) ✔ Authenticity: 100% Genuine Epson Part for optimal performance and longevity Why Choose This Part Designed for desktop and wide-format Epson all-in-ones Provides uniform lighting for clear, high-resolution scans Restores original factory-quality image capture Ensures accurate and consistent scanning performance Genuine OEM construction for durability and precision fit Important Notes Always confirm compatibility with your printer model before purchasing. Perfect for restoring scan performance and image quality in both standard and wide-format Epson devices. Order today to enjoy crisp, professional scanning results with genuine Epson quality.