| RG5-6235-120CN | Controller PC board - Tray 4 deck controller board - Controller PC Board - for 2000 sheet feeder - Uses data from volume and size PC boards to control paper tray |
| RG5-6235-140CN | Controller PC board - Tray 4 deck controller board - Controller PC Board - for 2000 sheet feeder - Uses data from volume and size PC boards to control paper tray |
| RG5-6235-150CN | Controller PC board |
| RG5-6237-000CN | Paper volume sensor board |
| RG5-6237-020CN | Paper volume sensor board |
| RG5-6238-000CN | Paper size PC board |
| RG5-6238-020CN | Paper size PC board |
| RG5-6239-020CN | LED board - Small PC board with two LEDs and a connector - For indicating the operating status |
| RG5-8013-000CN | Delivery Printed Circuit Board |
| RG5-7896-000CN | Paper pickup board |
| RG5-7896-010CN | Paper Pickup Pcb |
| RG5-8009-000CN | Cartridge memory controller board - Between ECU and the toner cartridge memory antenna |
| RG5-6996-000CN | Cartridge memory controller board - Between ECU and the toner cartridge memory antenna |
| RG5-7780-000CN | DC controller board assembly |
| RG5-7780-060CN | Assy-DC Controller PCB ver R1.02 |
| RG5-7780-070CN | Assy-DC Controler PCB ver R1.02 Rohs2.04 |
| RG5-7780-080CN | Assy-DC Controller PCB ver R1.02 |
| RG5-5649-000CN | Delivery assembly PC board |
| RG5-5678-000CN | Paper pickup board |
| RG5-5728-050CN | High voltage power supply board |
| RG5-5719-000CN | Memory controller PC Board |
| RG5-5719-100CN | Memory controller PC Board - Toner cartridge |
| Q6005-60001 | Copy processor board assembly - Includes the PC board and support carrier frame - Plugs in one of the EIO slots on Multi Function Printer/copier MFP the printer. |
| Q3722-67901 | Kit-Formatter Assy ReplacementFormatter board (main logic) PCA - Use for N and DN models only |
| Q3722-67902 | Kit-Formatter Assy ReplacementFormatter board (main logic) PCA - Use for N and DN models only |
| Q3722-69001 | Kit-Formatter Assy ReplacementFormatter board (main logic) PCA - Use for N and DN models only |
| Q3722-69002 | Kit-Formatter Assy ReplacementFormatter board (main logic) PCA - Use for N and DN models only |
| Q3701-60004 | Fax printed circuit assembly (PCA) - Accessed from the rear of the unit - Located on the formatter boardHP LaserJet analog fax accessory 300 |
| Q3721-67901 | Formatter board - Main Logic PCA - Base unit model only |
| Q3721-67904 | Formatter board - Main Logic PCA - Not for use in N and DN models |
| Q3721-69008 | Formatter board - Main Logic PCA - Base unit model only |
| J4135-61001 | JetDirect connectivity card - Has one USB port, one serial (DB9) port, and one LocalTalk port |