| Part Number | Description |
| G-3A0108B05 | TRACTOR, 3810 / 3840 |
| G-3A0108B06 | TRACTOR, 3870 |
| G-3A0155G03 | CABLE FAN |
| G-3A0214P02 | CARRIAGE CABLE KIT *Varies by revision, call for assistance, 3810, 3840 |
| G-3A1739B01 | CARRIAGE CABLE KIT *Varies by revision, call for assistance, 3810 / 3840 / 3870 |
| G-3B0348P01 | PULLEY, IDLER |
| G-3B0350G02 | CABLE FORMED (PRINTHEAD) |
| G-3B0352G02S | IDLER PLATE |
| G-3B0353G03S | MOTOR (CARRIAGE DRIVE), 3810 / 3840 |
| G-3B0359P01 | SPUR GEAR |
| G-3B0364G02 | CABLE, CONTROL PANEL, 3810 / 3840 |
| G-3B0368G03S | MOTOR (PAPER FEED) |
| G-3B0377G03 | SENSOR (PAPER OUT) |
| G-3B0398G02S | MOTOR (RIBBON DRIVE), 3810 / 3840 |
| G-3B0412G02 | PWB - PHOM/2 (OPT MOD BD), Old Style, 3810 / 3840 |
| G-3B0412G04 | PWB - PHOM/4 (OPT MOD BD), 3810 / 3840 |
| G-3B0412G05 | PWB - PHOM/5, 3870 |
| G-3B0475G02S | NIP ROLLER / SHAFT |
| G-3B1012G02S | CLUTCH (FRONT / REAR TRACTOR) |
| G-3B1415G01S | RIBBON DRIVE MOTOR, 3870 |
| G-3B1424G02S | MOTOR / CAPSTAN, 3870> |
| G-3C0513G04 | CONTROL PANEL PWB PHCP, 3810 / 3840 |
| G-3C0521G02S | HEAD HOME SENSOR |
| G-3C0567G01 | CONTROL PANEL PWB PHLP/1 (LCD), 3810 / 3840 |
| G-3C0928P01 | LEVER (PAPER TENSION) |
| G-3C0930G02S | CARRIAGE |
| G-3C0968G03S | FRONT EXIT ROLLER |
| G-3C0969G03S | REAR EXIT ROLLER |
| G-3C1516G02S | PHPMC MAIN BOARD, 3870 |
| G-3C1520G02S | PWB PHLP/1 CNTROL PNL PWB, 3870 |
| G-3D0623P04 | SWITCH (CONTROL PANEL), 3810 / 3840 |
| G-3D0623P06 | MEMBRANE SWITCH, CONTROL PANEL, 3810 / 3840 |
| G-3D0649G07S | POWER SUPPLY (PHPS), 3810 / 3840 |
| G-3D0649G08S | POWER SUPPLY (PHPS), 3810 / 3840 |
| G-3D0649G09S | POWER SUPPLY (PHPS), 3810 / 3840 |
| G-3D0651G02S | PWB (PHPM) PERSONALITY MODULE, 3810 / 3840 |
| G-3D0651G05S | PWB (PHPM) PERSONALITY MODULE, 3810 / 3840 |
| G-3D0651G06S | PWB (PHPM) PERSONALITY MODULE, 3810 / 3840 |
| G-3D0651G07S | PWB/BP (PHPM/6) PERSONAL MOD, 3810 / 3840 |
| G-3D0652G05S | PWB (PHPE) PRINT ENGINE, 3810 / 3840 |
| G-3D0659P01 | LEVER (PRINTHEAD ADJ), 3810 / 3840 |
| G-3D0666G12S | DOOR, FRONT W/MAG |
| G-3D0670G07S | DOOR, REAR ACCESS |
| G-3D0671G04S | END CAP (LH) |
| G-3D0672G06S | END CAP (RH) |
| G-3D0673G05S | DOOR, ACOUSTIC, TRACTOR |
| G-3D0819-3810s | COVER, W/OVERLAY, 3810S |
| G-3D0819-3840E | COVER, W/OVERLAY, 3840E |
| G-3D0819-3840EM | COVER, W/OVERLAY, 3840EM |
| G-3D0819-3810EP | COVER, W/OVERLAY, 3840EP |
| G-3D0836G02S | KIT - SHAFT / ROLLER / SPRING |
| G-3D0883G01S | PAPER DRIVE ROLLER |
| G-3D0862P02 | DEFLECTOR |
| G-3D0890P01 | PAPER GUIDE |
| G-3D0896G03S | STRIKER BAR ASM/C |
| G-3D0897G02S | GAP ADJ ASM (PH), 3840EP / 3870 |
| G-3D1302G03S | PRINTHEAD, 18 W, NEW STYLE, 3810 / 3840 |
| 3D1322B04 | PRINTHEAD 18W, 3870 |
| G-3D1331G01S | POWER SUPPLY, 3870 |
| G-3D1334G02S | ENCL. TOP/ CONT PANEL, 3870 |
| G-44A417024-028 | BELT (PAPER DRIVE), 3870 |
| G-44A417024-030 | BELT (PAPER DRIVE), 3810 / 3840> |
| G-44A501793-001 | FUSE, 3.00A 250V |
| G-4A1385G01 | PWB - PACT/1 (TWAX/COAX IF), 3910 / 3940 |
| G-4C0578G04 | PWB - SMART GRAPHICS, 3812 / 3842 |
| G-64007385-5001R | PRINTHEAD, 18 WIRE, OLD STYLE, 3810 / 3840 |
| Options & Supplies | |
| G-3A0113B01 | OUTPUT PAPER RACK, 3800 SERIES |
| G-3A0279B05 | RS-422 INTERFACE |
| G-3A1213B01 | UNIVERSAL PEDESTAL |
| G-3A1213B05 | PAPER CATCH TRAY FOR UNIV STAND |
| G-3A1213B06 | FORMS RACK FOR UNIV STAND |
| 2591138-0001 | 3810, 3840, 3940 7M CHARACTER LIFE RIBBON, replaces 3A1600B01, 3A0100B02 |
| 2591129-0001 | 3870 15M CHARACTER LIFE RIBBON, replaces 3A1600B02, 3A1600B21 |
