I found the Triforce! Here is another entry into #whatisitwednesday. This is the scanning element from the Epson NX330 printer/scanner combo that I recently took apart. I was surprised to find the secret triforce hidden on the other side of the PCB, the one that is not normally visible. I had to desolder the pins to the LED bar and cut some melted plastic to get the PCB out, so not necessarily an easy thing to do! Speaking of LED bar, there is a bar of LEDs (white plastic part) that runs the length of the device. This as four pins that were soldered directly into the PCB. These are used to illuminate the image that you are scanning. Also on the top side was a single row of tiny optical cylinders that focuses the light from the image onto the sensing element below. I didn’t bother to count these (because, no).
On the PCB itself, there are actually multiple integrated circuits, secured to the PCB right next to each other. Each IC measures ~18mm long, and there are a total of 12 of them, making the total length of the array 216mm long. The PCB itself comes in at just over 23cm (9.05 inches). This means that it can easily scan an A4 paper in one pass. I looked up the specs for the scanner and it claims it has an Optical Resolution of 1200 dpi, but has a Hardware Resolution of 2400 dpi, and also says it has a Maximum Resolution of 9600x9600 dpi, interpolated.