printer/copier/scanner, printer faulty (West Hill BN1)

This is an EPSON WorkForce Pro WF 3720 printer with scanner and copier facilities. However, we think that the printer heads are damaged and print comes out uneven. I don't know whether the copier/scanner are working but they most likely are. So, it could be used for spare parts or possibly repairable (we have a new printer now). The dimensions are: 43 x 34 x 25 cm approx.