Amazon.com: RB2-2387-000 Arm, Tray 1, Retaining Compatible for HP Laserjet 4000, Laserjet 4100 : Office Products
Amazon.com: WG8-5362-000 Photo Interrupter Compatible for HP Color Laserjet 4500, Color Laserjet 4600 : Office Products
Amazon.com: Altru Print 4100-RK17-AP Deluxe Roller Kit for LJ 4100 with Transfer Roller, Tray 1 Pickup Roller/Separation Pad, Tray 2-4 Feed/Separation Rollers & Tray 2/3 Pickup Rollers for Paper Pickup Assy :
Amazon.com: Toner Refill Store Compatible Toner Cartridge Replacement for HP 61X C8061X High Yield Works with HP Laserjet 4100 4100dtn 4100mfp 4100n 4100tn 4101mfp Printers (Black, 1 Pack) - 10,000 Pages : Office Products
Amazon.com: RB1-2190-000 Clip, Pickup Compatible for HP Laserjet 4, Laserjet 4+ : Office Products
128MB 100 pin PC100 Printer Memory DIMM Compatible with HP C9121A Q7709A for Laserjet 4100 4100n 4100t 4100tn 4100dtn 4100MEP 4100MFP at Amazon.com
Amazon.com: RB1-8788-000 Cover, Sensor Lever Compatible for HP Laserjet 4000, Laserjet 4100 : Office Products
Amazon.com: HP Duplexer - C4123A - for HP LaserJet 4000 & 4050 Series Printers : Office Products