| Description | Part Number |
| 256MB User Flash Memory | 41X1010 |
| Cable, AC power to LVPS | 41X2331 |
| Cable, control panel power cable | 41X2119 |
| Cable, EP motor to controller board | 41X2330 |
| Cable, fuser/input sensor | 41X2329 |
| Cable, headphone | 41X1308 |
| Cable, HVPS to controller board | 41X2334 |
| Cable, LVPS to controller board | 41X2332 |
| Cable, tray 2 to controller board | 41X2335 |
| Cable, tray present sensor | 41X2336 |
| Control panel badge cover, C2535 | 41X2133 |
| Control panel base cover | 41X1305 |
| Control panel bezel, 2.4-inch | 41X1304 |
| Control panel display assembly | 41X1627 |
| Control panel FFC, 2.4-inch | 41X1309 |
| Controller board (CS521 and C2535) | 41X2098 |
| Cover assembly, front and right side interlock switch | 41X1561 |
| Cover, left | 41X1291 |
| Cover, rear | 41X1788 |
| Cover, right assembly | 40X7630 |
| Cover, top assembly | 40X7633 |
| Drawer, optional with 550-sheet tray | 41X1780 |
| EP drive assembly | 41X1289 |
| Fan, main | 41X0397 |
| Fax card, 1 port vertical | 41X1871 |
| Flag, narrow media/bin full | 41X2349 |
| Flag, right deflector | 41X2350 |
| Front cover inner deflector | 41X2663 |
| Front cover straps | 40X7619 |
| Front door assembly | 41X1286 |
| Front toner door pivot bracket | 40X9244 |
| Fuser deflector | 41X2305 |
| Fuser drive motor assembly | 40X7629 |
| Fuser exit narrow media to controller board | 41X2328 |
| Fuser exit sensor | 40X5413 |
| Fuser maintenance kit, 110-115V | 41X2096 |
| Fuser maintenance kit, 220-230V | 41X2097 |
| Fuser, 110-115V | 41X1041 |
| Fuser, 220-230V | 41X1300 |
| ITU guide | 41X0580 |
| Media feeder | 41X1292 |
| MPF pick tire roll with wear strips | 40X7178 |
| Photo sensor and retainer (one per package) | 40X7301 |
| Pick tires | 40X5168 |
| Power supply, high voltage HVPS | 41X1042 |
| Power supply, low voltage LVPS | 41X1043 |
| Printhead | 41X1040 |
| Sensor (left toner patch with thermistor) | 41X1904 |
| Sensor (right toner patch with thermistor) | 41X2348 |
| Serial ISP with backpack adapter | 41X0020 |
| Smart card | 41X2055 |
| Subframe cable cover | 41X2327 |
| Subframe foot | 41X2360 |
| Subframe, lower left | 41X2326 |
| Subframe, lower right | 41X1312 |
| Toner cartridge contact | 41X1723 |
| Toner meter cycle card assembly | 40X7620 |
| Toner supply door | 40X7621 |
| Transfer module | 41X1039 |
| Tray assembly, 250-sheet | 41X1285 |
| Tray insert, 550-sheet | 41X1781 |
| Tray, duo tray insert, 650-sheet | 41X1784 |
| Tray, duo tray optional 650-sheet | 41X1783 |
| TWN4 USB front reader kit authentication device | 41X2615 |
| USB cable | 41X1307 |
| USB cable, packaged (2 m) | 40X1368 |
| Waste toner bottle contact block | 41X1722 |
| Weather station | 41X1290 |
| Weather station cable | 41X2333 |
| Wireless module | 41X1873 |
