Epson 17-Pin Contact Image Sensor (CIS) Head Lamp FA-4A603 / CA-4BGB for ET-8550, ET-15000, and Desktop Printers (8.5″ Scan Width)

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.

Not sure what a part is called? Need the ET-8550 parts list? Want to learn how to work on it? Check out our ET-8550 Exploded Parts Diagram & Repair Reference Guide: https://bchtechnologies.com/products/et-8550-et8550-exploded-parts-diagram-repair-reference-guide-annotated-edition

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.