| Part Number | Description |
| 41X1987 | 550-SHEET TRAY INSERT (STANDARD) |
| 41X1221 | 250-SHEET TRAY INSERT (OPTIONAL TRAY) |
| 41X1222 | 550-SHEET TRAY INSERT (OPTIONAL TRAY) |
| 41X4148 | 250-SHEET OPTIONAL DRAWER WITH TRAY |
| 41X4149 | 550-SHEET OPTIONAL DRAWER WITH TRAY |
| 41X2300 | ACCESS COVER LINK |
| 41X4421 | BEZEL (BLANK) |
| 41X4422 | BEZEL FOR MS631 |
| 41X1988 | CARTRIDGE BARREL SENSOR KIT |
| 41X1237 | CARTRIDGE GEAR BOX |
| 41X4359 | CONTROL PANEL DISPLAY 2.8-INCH |
| 41X4547 | CONTROL PANEL FFC |
| 41X4412 | CONTROL PANEL FRONT COVER |
| 41X4151 | CONTROLLER BOARD |
| 41X2259 | COOLING FAN |
| 41X1176 | DUPLEX ASSEMBLY |
| 41X4214 | DUPLEX GEAR KIT |
| 40X8521 | DUST COVER, 550 SHEET TRAY |
| 41X4154 | ENGINE BOARD |
| 41X1164 | FRONT COVER |
| 41X1184 | FRONT INPUT GUIDE |
| 41X4537 | FRONT USB CABLE |
| 41X2255 | FUSER ACTUATOR |
| 41X1178 | FUSER 110V |
| 41X1179 | FUSER 220V |
| 41X1026 | HARD DISK DRIVE, 500GB (USB) |
| 40X8044 | INDEX SENSOR |
| 41X2854 | INTELLIGENT STORAGE DRIVE (ISD) |
| 41X4549 | INTERCONNECT CABLE |
| 41X1183 | JAM ACCESS COVER |
| 41X1168 | LEFT COVER |
| 41X0774 | LOCKING CASTER |
| 41X1224 | MAIN DRIVE GEAR BOX |
| 41X5024 | MAINTENANCE KIT 400K, 110 V |
| 41X5025 | MAINTENANCE KIT 400K, 220 V |
| 41X1182 | MPF GEAR BOX |
| 41X1197 | MFP PICK ROLLER AND SEPARATOR PAD |
| 41X1213 | MPF SOLENOID |
| 41X4144 | MPF WITH FRONT COVER |
| 41X1225 | MAINTENANCE KIT 110V, 200K PAGES |
| 41X1226 | MAINTENANCE KIT 220V, 200K PAGES |
| 41X0775 | NON-LOCKING CASTER |
| 41X1231 | OUTPUT EXTENDER |
| 41X4453 | PAPER PRESENT SENSOR FLAG |
| 41X1239 | PICK ROLLERS, OPTIONAL TRAY |
| 41X1196 | PICK ROLLER ASSEMBLY |
| 41X1198 | PICK TIRE |
| 41X1989 | PICK / LIFT MOTOR GEAR BOX |
| 41X4411 | POWER SUPPLY, 110V |
| 41X4410 | POWER SUPPLY, 230V |
| 41X0764 | PRINTER STAND |
| 41X1185 | PRINTHEAD |
| 41X1232 | REAR ACCESS DOOR |
| 41X1170 | REAR DOOR AND COVER |
| 41X4409 | REDRIVE ASSEMBLY |
| 41X2256 | REDRIVE GEAR PLATE |
| 41X1214 | REVERSE SOLENOID |
| 41X1233 | RIGHT ACCESS COVER |
| 41X1166 | RIGHT COVER |
| 41X4548 | SENSOR (DUPLEX AND INPUT) |
| 41X1209 | SENSOR (FRONT DOOR) |
| 41X1210 | SENSOR (MPF PAPER PRESENT) |
| 41X1208 | SENSOR (TRAILING EDGE) |
| 41X1238 | SENSOR (TRAY PRESENT) |
| 41X1212 | SEPARATOR ROLLER ASM |
| 41X1162 | TONER CARTRIDGE SMART CHIP CONTACT |
| 41X4456 | TONER DENSITY SENSOR |
| 41X1172 | TOP COVER |
| 40X8393 | TRANSFER ROLLER |
| 41X2873 | TRUSTED PLATFORM MODULE (TPM) CARD |
| 41X4177 | WIRELESS CARD (MARKNET N8450) |
