Hp Laserjet3550 printer 59.99.00 error

Model: HP Color Laserjet 3550 Printer
problem error: 59.99.00 , paper cannot pick-up at tray 1.

possible problems:
59.99.00 An error occurred in the secondary transfer engaging mechanism.

1. Faulty secondary transfer engagement sensor. Replace the secondary transfer engagement sensor.

2. Faulty secondary transfer engaging solenoid. Replace the secondary transfer engaging solenoid.

3. Faulty feed motor. Replace the feed motor.

4. Faulty DC controller PCB
Action: Replace the DC controller PCB.