| RC1-2280-000CN | Leaf spring - Provides ground contact to front cross-brace - Mounts on the on the right side of the center frame assembly |
| RC1-2191-000CN | Compression spring - Provides upward pressure on the separation pad assembly in the 500-sheet paper cassette tray assembly |
| RC1-1628-000CN | Tension spring - Provides tension to the color drum lock arms on left side - Three used |
| RC1-1648-000CN | Tension spring - Provides tension for left swing lock lever |
| RC1-2175-000CN | Leaf spring for HP Color LaserJet 3500 Series |
| RC1-1537-000CN | Grounding spring - Grounding spring for right drum lock arm |
| RC1-1515-000CN | Tension spring - Provides tension for pickup gear assembly on right side |
| RC1-1548-000CN | Provides tension for rigth stopper arm - Three used |
| RC1-1464-000CN | Torsion spring - Provides pressure for Tray 1 paper sensor flag |
| RC1-1407-000CN | Tension spring - Provides tension for MP/Tray 1 |
| RC1-1292-000CN | Tension spring - Provides tension for gear holder that holds 104/25 tooth cluster gear |
| RC1-1328-000CN | Torsion spring - Provides tension for sensor flag in center frame assembly |
| RC1-1259-000CN | Tension spring - Provides tension for right drum lock arm - Four used |
| RC1-1149-000CN | Tension spring - Provides tension for right side swing lock |
| RC1-1177-000CN | Grounding spring - Ground spring located on left guide rod assembly |
| RC1-1184-000CN | Tension spring - Provides tension for top left drum lock arm |
| RC1-1185-000CN | Tension spring - Provides tension for black plastic drum lock arms |
| RB2-6450-000CN | Leaf spring for HP Color LaserJet 3500 Series |
| RS6-2021-000CN | Pad spring - Provides tension for separation pad on front of paper tray |