Universal AC power adapter - wide-range, 40c - Requires separate country-specific power cord with C7 connector
Brush - Static eliminating
RS-232C serial cable - 25-pin (M) to 8-pin (M) DIN - 1.5m (4.9ft) long
RS-232C serial cable - 25-pin (M) to 25-pin (F) - 1.2m (3.9ft) long
Cable assembly - From DC controller to delivery sensor (PS3)
Inner cover plate - Removed when installing envelope feeder
High voltage cover - Plastic `Pan` for high voltage board
Right side cover
Left side cover
Tubeaxial fan for HP LaserJet 4
Fusing roller drive gear - 34 tooth
Fuser output gear - 23 tooth
4MB, 80nS, 36-bit SIMM memory module - For HP Plotters, LaserJet IIISi, 4/4M, 4Si/MX and other models.
4MB, 70nS, 36-bit parity SIMM memory module
16MB SIMM memory module
4MB, 80nS, 36-bit SIMM memory module
2MB, 80nS, 36-bit SIMM memory module
External JetDirect LAN interface module with EtherTwist (10Base-T) and ThinLAN (10Base-2) connectors
External token ring interface module - Has DB-9 connector
External JetDirect LAN interface module with RJ-45 connector for EtherTwist (10Base-T) or 100VG/802.12 input and three parallel (DB-25) output connectors
External JetDirect LAN interface module with EtherTwist (10Base-T) connector
Separation pad (Rectangular) - For multipurpose tray input
Formatter (Main Logic) board
JetDirect 400N modular input/output (MIO) internal print server - Provides 10/100Base-TX or 10Base-2 network connection using RJ45 or BNC connectors
Paper control board - On right side of paper feed assembly
DC controller board
JetDirect 400N modular input/output (MIO) - Internal print server - Provides 10/100Base-T or 10Base-2 network connection using RJ45 or BNC connectors
EtherTwist (10Base-T) or 100Base-TX LAN interface board - Has an RJ-45 connector
External JetDirect token ring interface module with DB-9 and RJ-45 input connectors and three parallel (DB-25) output connectors
HP JetDirect 500X external token ring print server module - Interfaces up to 3 parallel printers to an ethernet 10Base-T (RJ-45), 10Base2 (BNC), or 100Base-TX (RJ-45) LAN
Adobe's postscript (Level 2) SIMM module - Includes 35 fonts
Power cord (Mint Gray) - 17 AWG, 2.3m (7.5ft) long - Has straight (F) receptacle (for 240V in the UK, Hong Kong, Singapore, Malaysia, and Brunei)
Power cord (Mint Gray) - 17 AWG, 2.0m (6.6ft) long - Has straight (F) receptacle (for 240V in Australia, New Zealand, and China)
Power cord (Mint Gray) - 17 AWG, 2.0m (6.6ft) long - Has straight (F) receptacle (for 220V in Europe, Bangladesh, Indonesia, Pakistan, Burma, Sri Lanka, and Vietnam)
Power cord (Mint Gray) - 2.0m (6.6ft) long - Has straight (F) receptacle (for 220V in Switzerland)
Daisy chain power cord (Dove Gray) - 18 AWG, 1.2m (4.0ft) long - Has C14 (M) plug for power input and C13 (F) plug for power output
High voltage power supply assembly PCA
Pickup roller (Quarter circle shaped) - For upper cassette
Delivery roller - Double roller in paper output assembly
Pickup roller (oval shaped) - Located in the lower cassette base assembly
Output roller and holder
Lower delivery roller - Shaft with 4 double rollers on it
Upper delivery roller - Shaft with 7 rollers on it
Pickup solenoid (SL2) - For multipurpose tray pickup roller
Thermistor assembly - Includes cable
Thermoswitch assembly (fuser temperature switch) - At end of fusing roller
LaserJet 4 and 4M Multi-size 250-sheet tray, HP 250 Sheet Multi-Size Tray - Legal, Letter, Executive & A4