Inconsistent colors after loading toner | HP 4550 specification

Inconsistent colors after loading toner

Problem	Solution

Another toner color may be low.	Check the printer control panel for a TONER LOW
	message and replace the toner cartridge if
	necessary.

Toner cartridges may be improperly installed.	Verify that each toner cartridge is installed
	properly.

Printed colors do not match screen colors

Problem	Solution

Extremely light screen colors are not being	Your software application may interpret
printed.	extremely light colors as white. If so, avoid
	using extremely light colors.

Extremely dark screen colors are being printed	Your software application may interpret
in black.	extremely dark colors as black. If so, avoid
	using extremely dark colors.

The colors on your computer monitor differ	Try selecting Screen Match in the color control
from the printer output.	tab of your printer driver.

The toner density sensor may need cleaning.	See “Cleaning the toner density sensor” on
	page 149.

Note	Several factors can influence your ability to match printed colors to
	those on your monitor. These factors include print media, overhead
	lighting, software applications, operating system palettes, monitors,
	and video cards and drivers.

EN

Chapter 9 211

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HP 4550 manual Inconsistent colors after loading toner, Printed colors do not match screen colors

Contents

Learn Page User guide links Quick access to printer informationWorld Wide Web links User Guide Copyright and License Contents Common printing tasks Using color Printer Interfaces Contents Appendix a Dimm Installation Index Where to look for more information Setting up the printerHP JetDirect Print Server Administrator’s Guide Accessory and Consumable Installation Guides Online Help Using the printerOnline User Guide Finding topics in the online user guide How to use this online user guideFeatures of Acrobat Reader Magnifying the page view Printing the document Paging through a documentBrowsing with thumbnails HP Color LaserJet 4550 Series Printer Overview Printer features Performance Optional storage Factors affecting printer performance Locating printer components Page Select printer settings using the printer control panel Controlling print jobs Web server Select printer settings remotely with the embeddedEnter printer commands directly into files Managing memory Modules. Extended data output EDO DIMMs are not supported Printer software HP Resource Manager Operating systema PCL 5c Printer driversAdditional drivers Other components and utilities HP JetSend communicationsPage Printer supplies and accessories Accessory Product Description Additional information Number HP LaserJet Printer Family Paper Specification Guide Using the printer control panel When to use the printer control panel Locating printer control panel features 1Printer control panel Using printer control panel keys Using the printer online Help system Interpreting control panel indicator lights Indicator Off Flashing Control panel menus Menu lockingMenu map To print a menu map Interpreting the menu map Information menu Menu item Description Paper handling menu Tray 1 MODE=CASSETTE Printing menu Menu item Values Description Configuration menu Menu Calibration menu Resets menu Hard disk dependent menus Quick Copy Jobs menu Private/Stored Jobs menu EIO menu Printer information pages Printer configurationTo print a printer configuration Interpreting the printer configuration 3Printer configurationPage Supplies status To print the supplies status Printer information Interpreting the supplies statusOther supplies information Usage To print the usage Interpreting the usage Interpreting the event log Event logTo print an event log Using the printer control panel in shared environments Changing printer control panel configuration settings To change printer control panel configuration settings Changing PowerSave settings To change the PowerSave setting Switching printer personalities To switch printer personality Setting the I/O timeout To set the I/O timeout To disable the high-speed parallel interface Disabling the high-speed parallel interface Setting advanced functions Resetting printer memoryTo enable bidirectional parallel communication To reset printer memory Resetting the printer to factory default settings To reset the printer to factory default settings Common printing tasks Selecting print media Supported media weights and sizes Tray Supported media Media Capacity Specifications Duplex Media to avoid Glossy paper Printing on special mediaTransparencies Colored paper Envelopes Labels Heavy paper Preprinted forms and letterhead Selecting output bins Selecting media by type To configure Tray 1 as a cassette Configuring input traysConfiguring Tray 1 as a cassette Tray priority Configuring Trays 2 and 3 by media typeTo configure Trays 2 or To load media into Tray Printing from Tray 1 multipurpose trayLoading media into Tray Page Loading envelopes into Tray To load envelopes into Tray Printing envelopes when Tray 1 MODE=CASSETTE Printing envelopes when Tray 1 MODE=FIRST Printing from Tray Page Printing from Tray 3 optional 500-sheet paper feeder 2Tray 3 optional 500-sheet paper feeder Supported media weights and sizes on JIS B5 Page Page 3Optional duplex printing accessory To use the optional duplex printing accessory Control panel settings for duplex printing To set duplex printing from the printer control panel Options for binding duplex printing jobs 4Binding options Printing on custom-size media Special printing situationsPrinting a different first Stopping a print request To stop the current print job from the printer controlPanel To stop the current print job from your software Printing additional copies of a quick copy job Job retention featuresQuick copying a job Deleting a stored quick copy job Proofing and holding a job Printing the remaining copies of a held job Deleting a held job Releasing a private job Printing a private jobSpecifying a private job Deleting a private job Storing a print job Printing a stored job Deleting a stored job Printing a job Setting up to print with Windows 9x/NTPrinting with the optional HP Fast InfraRed Receiver Interrupting and resuming printing Using color Matching colors Automatic color adjustment HP ColorSmartColor management options Print in Grayscale Manual color adjustment Halftone optionsPage Four-color printing Cmyk Matching Pantone * colors Automatic Pantone * calibration Features To turn off Automatic Pantone * calibrationPage Over 945 Pantone * colors in the Pantone * Matching System Using fonts Using internal TrueType fonts Understanding printer default fonts Changing the default fontSelecting a font other than the default Font selection priority Selecting symbol sets Symbol set availabilityEntering symbols into text Selecting fonts Selecting PCL fonts through the printer control panel Internal Soft Printing a list of available printer fonts To print a list of available fonts Interpreting the font lists Using fonts in PostScript Emulation Using fonts on a network Guidelines for printing with different fonts Adding support for accessory fonts to a printer driver Using special type effects Hewlett-Packard custom font services Printer Interfaces Parallel configuration Parallel cable C connector Enhanced I/O EIO configuration HP JetDirect print servers Windows and Windows NT networks Available enhanced I/O interfacesNetWare networks LocalTalk configuration LocalTalk network configurationAppleTalk Networks Macintosh DIN-8 cable Setting network security on the printer UNIX/Linux networks Configuring Novell NetWare frame type Parameters Frame type Description Control panel Configuring TCP/IP parametersTo configure TCP/IP parameters from the printer Page Page To reach network protocols To disable IPX/SPXDisabling network protocols optional To disable Apple AppleTalk To disable DLC/LLCTo disable TCP/IP Printer Interfaces Consumables and cleaning 1Consumable replacement clearance diagram Making room around the printer for replacing consumables Consumable replacement guidelines Approximate replacement intervals for consumable items 145 Locating consumables 2Consumable item locations Environmental collection program Cleaning the printer Cleaning excess toner from the printer Cleaning the toner density sensor To clean the toner density sensorPage Printer control panel messages Status messages Critical error messagesMessage types Printer control panel messages Checking Paper PathChecking Printer Clean Drum ErrorDuplex Error Power OFF EIO Install Color Install TrayFile Operation Failed Memory Settings Press GO to Continue No JOB to CancelManually Feed Size Powersave on Print JOB Cancelled PrintingAccessories Configuration Demonstration Engine TestFile Directory Font List Reinstall ResettingResetting Values Factory Settings Restore Factory Settings Toner Color OUT Toner PositionColor = State Transfer KIT LOW Tray X SIZE= Tray X TYPE=Type Unable to XX Paper JAM Check ALLRear Doors Check Middle Printer Error Buffer OverflowPress GO to Continue Parallel I/O Press GO to Continue EIO X BAD Error Cycle PowerFuser Error Cycle Power to 53.XY.ZZ Error No More ErrorsBase MEM Bank B Dimm a Bank B DC Controller FAN Error Continue No System Service Error Nvram ErrorCheck Settings EIO Error Control panel messages for external devices TOO Many Pages JOB to FinishFinisher Failure Device Failure Printer control panel messages Solving problems with the printer Basic troubleshooting checklist Paper jam locations Paper jam recovery To enable Paper Jam Recovery Cause Solution Common causes of paper jams Clearing paper jams Clearing jams in the middle front drawer areaPage Clearing jams in the Tray 2 area Clearing jams in the optional Tray 3 area Clearing jams in the rear door areas Page Clearing jams in the front duplex drawer area Media-handling problems Printer feeds multiple sheetsPrinter feeds incorrect page size TRAY=CASSETTE Media does not feed automatically Media does not feed from Input Trays 2 or Transparencies or glossy paper will not feed Envelopes jam or will not feed in the printer Output is curled or wrinkled Printer will not duplex Printer response problems No display message Printer is on, but nothing prints Chapter Printer is on, but is not receiving data Unable to select the printer from the computer See Chapter Unable to select Tray 3 optional 500-sheet paper feeder Printer control panel problemsControl panel settings work incorrectly Image defect ruler Print quality troubleshootingRepetitive image defects 195 Image defects Image defect table Background scatter Banding horizontal Black lines Blank pages or missing a color Character voids Distorted image Dropouts Faded print, faded areas, or faded vertical streaks Toner smear Ghosting Gray streaks Light, dark, or faded print Non-adhering toner Marbled output Random spotsSharkskin Sunburn Actions Imaging drum defectsCauses Overhead transparency defects WWW Dull or dark transparencies Rippled or wavy transparencies Incorrect image on transparencies Repetitive defects on transparencies Streaking or smudges on transparencies Missing color or incorrect shade Color printing problemsPrinting black instead of color Inconsistent colors after loading toner Printed colors do not match screen colors Unable to print all characters in a symbol set Incorrect printer outputIncorrect fonts are printed Drifting text between printouts Erratic, missing characters or interrupted printout Partial printout Software application problems Unable to change system selections through softwareUnable to select a font from the software Unable to select colors from the software Dimm Installation Dimm configuration Figure A-1Do not remove the Dimm in slot #1 Installing DIMMs To install a DimmPage Page Verifying Dimm installation Resource saving/permanent resources Installing EIO cards/mass storage PCL commands PCL commands PJL commands Interpreting PCL printer command syntax Figure B-1Printer command elements Combining escape sequences in PCL Printer command syntax Entering escape characters Application Escape Character Entry What Appears Symbol set Selecting PCL fontsFont list Point size Common PCL commands PCL Commands Function Command Options Control Commands Function Command Options Function Command Options Programming Hints PCL Commands PCL commands Electrical specifications Volt Models Operating environment specifications Acoustic emissions Environmental product stewardship program Protecting the environmentThis HP LaserJet printer design eliminates This HP LaserJet printer design reduces HP Planet Partners printing supplies environmental HP recycling program informationHP LaserJet printing supplies- In many countries, this Spare Parts and Consumables Availability- Spare parts Regulatory statements FCC regulations Canadian DOC regulations Vcci statement Japan Korean EMI statement Declaration of Conformity According to ISO/IEC Guide 22 and EN Safety information Laser safety Klass 1 Laser Apparat Laser Statement for FinlandLuokan 1 laserlaite Varo Material Safety Data Sheet Msds Hewlett-Packard Warranty Statement Support information Warranty and support information HP Maintenance Agreements On-site service agreements Support information Accessories or supplies HP Service InformationHP Service Agreements HP Customer Care HP direct ordering for HP Customer Care options worldwide Customer Care Centers Worldwide Worldwide Country/Region Sales and Service Offices Colombia Czech RepublicDenmark Finland Italy JapanKorea Latin American Headquarters Russia SingaporeSpain Sweden Warranty and support information Embeddedserver Web Introduction Using the embedded Web server To access the embedded Web server Embedded Web server page sets Home page set Device page set Networking page set Embedded Web server Index Index Index Index Index See also fonts Page English