Formatter board - Controls the logic and timing operation of the printer, translates the control panel input, and provides control of the scanner assembly - Mounts on the right side of the printer - For LaserJet 3055AIO model only
Q7528-60001Formatter board - Controls the logic and timing operation of the printer, translates the control panel input, and provides control of the scanner assembly - Mounts on the right side of the printer - For LaserJet 3052AIO model only
Q7844-60002Formatter board - Controls the logic and timing operation of the printer, translates the control panel input, and provides control of the scanner assembly - Mounts on the right side of the printer - For LaserJet 3050AIO model only
RM1-3404-000CNEngine control unit (ECU) PC board - Controller board - Provides control logic for the printer mechanical functions
