1. lj4550prnsyswin-en.exe Driver
2. hp4550ps.inf File Contents

hp4550ps.inf Driver File Contents (lj4550prnsyswin-en.exe)

; HP Color LaserJet 4550 PS driver installation file for Windows NT
; Copyright Hewlett-Packard 1999, 2000

[Version]
Signature="$Windows NT$"
Provider="Hewlett-Packard"
LayoutFile=HP4550PS.INF
ClassGUID={4D36E979-E325-11CE-BFC1-08002BE10318}
Class=Printer
DriverVer=08/29/2001,2.0.1

[Manufacturer]
"HP"

[HP]
"HP Color LaserJet 4550 PS"        = HP4550_6.PPD,Hewlett-PackardHP_Co16E1

[HP4550_6.PPD]
CopyFiles=HP4550_6_FILES,LANGMON_FILES,LANGMON_DRVCOPY
DataFile=HP4550_6.PPD
DriverFile=PSCRIPT4.DLL
ConfigFile=PS4UI.DLL
HelpFile=PSCRIPT4.HLP
LanguageMonitor="HP Master Monitor,HPBMMON.DLL"

[LANGMON_FILES]
HPBMMON.DLL,HPBMMON.DL_
HPDOMON.DLL,HPDOMON.DL_
HPBHEALR.DLL,HPBHEALR.DL_

[LANGMON_DRVCOPY]
HPBMMON.DLL,HPBMMON.DL_
HPDOMON.DLL,HPDOMON.DL_
HPBHEALR.DLL,HPBHEALR.DL_

[HP4550_6_FILES]        
HP4550_6.PPD,HP4550_6.PP_
PSCRIPT4.DLL,PSCRIPT4.DL_
PS4UI.DLL,PS4UI.DL_
PSCRIPT4.HLP,PSCRIPT4.HL_
PSCRIPT.NTF,PSCRIPT.NT_
HPCJRPS4.DLL,HPCJRPS4.DL_
HPCJRUI4.DLL,HPCJRUI4.DL_
HPCSTR4.DLL,HPCSTR4.DL_
HPPS1_4.INI,HPPS1_4.IN_

[DestinationDirs]
HP4550_6_FILES=66000
DefaultDestDir=66000
LANGMON_DRVCOPY=66000
LANGMON_FILES= 11

[Strings]
disk1="HP Color LaserJet 4550 PS Disk1"

[SourceDisksNames.x86]
1 = %disk1%,,,""

[SourceDisksFiles]
HPBMMON.DLL   = 1
HPBMMON.DL_   = 1
HPDOMON.DL_   = 1
HPBHEALR.DL_  = 1
PSCRIPT4.DL_  = 1
PSCRIPT4.HL_  = 1
PSCRIPT.NT_ = 1
PS4UI.DL_= 1
HP4550_6.PP_ = 1
HPCJRPS4.DL_ = 1
HPCJRUI4.DL_ = 1
HPCSTR4.DL_  = 1
HPPS1_4.IN_  = 1

How To Update Drivers Manually

After your driver has been downloaded, follow these simple steps to install it.

• Expand the archive file (if the download file is in zip or rar format).

• If the expanded file has an .exe extension, double click it and follow the installation instructions.

• Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.

• Find the device and model you want to update in the device list.

• Double-click on it to open the Properties dialog box.

• From the Properties dialog box, select the Driver tab.

• Click the Update Driver button, then follow the instructions.

Very important: You must reboot your system to ensure that any driver updates have taken effect.

For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.