Samsung ML-4551ND, ML-4550 manual Solving print quality problems

Page 57

Solving print quality problems

Dirt inside of the printer or improper paper loading may reduce print quality. See the table below to troubleshoot problems.

Condition

Suggested solutions

 

 

Light or faded

If a vertical white streak or faded area appears

print

on the page:

AaBbCc

The toner supply is low. You may be able to

 

temporarily extend the toner cartridge life. See

AaBbCc

 

page 8.4. If this does not improve print quality,

AaBbCc

install a new toner cartridge.

AaBbCc

The paper may not meet paper specifications

 

(for example, the paper is too moist or too

AaBbCc

 

 

rough). See page 5.3.

 

 

 

If the entire page is light, the print resolution

 

 

setting is too light or toner save mode is on.

 

 

Adjust the print resolution and toner save

 

 

mode in the printer properties. See the

 

 

Software Section.

 

If the entire page is faded with "Toner Low

 

 

Replace Toner" message on LCD,

 

 

set "CLR Empty Msg." to "On" referring to

 

 

page 8.7. In this case, you can keep printing

 

 

but the quality cannot be guaranteed, and the

 

 

product support is no longer provided.

 

A combination of faded or smeared defects

 

 

may indicate that the printer needs cleaning.

 

 

See page 8.1.

 

The surface of LSU may be dirty. Clean the

 

 

LSU. See page 8.2.

Toner spots

• The paper may not meet specifications (for

AaBbCc

example, the paper is too moist or too rough).

See page 5.3.

AaBbCc

• The transfer roller or paper path may be dirty.

AaBbCc

See page 8.1.

 

AaBbCc

 

AaBbCc

 

Condition

 

Suggested solutions

Dropouts

If generally rounded, faded areas occur

 

randomly on the page:

AaBbCc

A single sheet of paper may be defective. Try

AaBbCc

 

reprinting the job.

AaBbCc

The moisture content of the paper is uneven

AaBbCc

 

or the paper has moist spots on its surface.

 

Try a different brand of paper. See page 5.3.

AaBbCc

 

The paper lot is bad. The manufacturing

 

 

processes can cause some areas to reject

 

 

toner. Try a different kind or brand of paper.

The toner cartridge may be defective. See “Vertical repetitive defects” on the next page.

If these steps do not correct the problems, contact a service representative.

Vertical lines

If black vertical streaks appear on the page:

AaBbCc

• The drum inside the toner cartridge has

probably been scratched. Install a new toner

AaBbCc

cartridge. See page 8.5.

AaBbCc

If white vertical streaks appear on the page:

AaBbCc

• The surface of the LSU part inside the printer

AaBbCc

may be dirty. Clean the LSU. See page 8.2.

Gray

If the amount of background shading becomes

background

unacceptable, the procedures below may fix the

 

problem.

AaBbCc

• Change to lighter weight pages. See page 5.3.

AaBbCc

• Check the printer’s environment; very dry (low

AaBbCc

humidity) or high humidity (higher than 80%

AaBbCc

RH) conditions can increase the amount of

AaBbCc

background shading.

• Remove the old toner cartridge and install a

 

 

new one. See page 8.5.

Toner smear

Clean the inside of the printer. See page 8.1.

 

 

 

Check the type and quality. See page 5.2.

 

 

 

Remove the toner cartridge and install a new

 

 

 

 

one. See page 8.5.

 

 

 

 

 

 

 

 

 

 

9.11 <Troubleshooting>

Image 57
Contents Page Page Contact Samsung worldwide Switzerland Contents Troubleshooting Installing accessoriesSpecifications Important Precautions and Safety Information FCC Regulations Canadian Radio Interference RegulationsReplacing the Fitted Plug for UK Only Openssl License Original Ssleay License Special features IntroductionSoftware Section You can print in Windows 98/Me/NT 4.0/2000/XP/2003 Features ML-4550 ML-4551N ML-4551NDFront view Printer overviewControl panel overview Finding more informationClearance space Selecting a locationSystem setup Using control panel menusAccessing control panel menus Menu overview Job manager menuInformation menu Orientation Layout menuSimplex MarginGraphic menu Paper menuSystem Setup menu PostScript Emulation menuNetwork menu Changing the font setting Using toner save modePrinting a demo Changing the display languageSupplied software Software overviewPrinter driver features System requirementsWindows Linux MacintoshRequirements Network setup Via network administration programsVia the control panel Configuring EtherTalk Configuring TCP/IPDynamic addressing BOOTP/DHCP Supported operating systemsSetting Ethernet speed Configuring IPX frame typesRestoring the network configuration Printing a network configurationSelecting print media Loading print mediaType Size Weight Type Size Dimensions Weighta CapacitybSupported sizes of paper Print media for duplex printingGuidelines for selecting and storing print media Guidelines for special print mediaMedia type Guidelines Loading paper Changing the size of the paper in the tray Using the standard tray or the optional traysLoad the paper with the side to be printed on facing up Using the multi-purpose trayTips on using the multi-purpose tray Using manual feed modeSelecting an output location Printing to the output tray Face downPrinting to the rear cover Face up Printing a document Canceling a print job Canceling a print jobBasic printing Printing a documentAccessories Ordering supplies and accessoriesHow to purchase Toner cartridgesCleaning the printer MaintenanceCleaning the outside of the printer Cleaning the inside of the printerMaintenance Maintaining the toner cartridge Printing a cleaning sheetToner cartridge storage Expected cartridge yieldRedistributing toner cartridge Checking the remaining tonerReplacing the toner cartridge Maintenance Maintenance parts Clearing the Toner Low Replace Toner messageItems Yield Average Clearing paper jams TroubleshootingPaper feed area TrayOptional tray Multi-purpose tray Around the toner cartridgePaper exit area Duplex unit areaDuplex jam Troubleshooting checklist Condition Suggested solutionsTips for avoiding paper jams Understanding display messages Understanding the status LEDLow Heat Error Message Meaning Suggested solutions LoadLSU Motor Error OPC is CleaningToner cartridge-related messages Solving general printing problems Spool Settings button Settings and Printers. RightClick the Samsung ML-4550 Series PCL 6 printer iconSolving print quality problems Condition Suggested solutions Curl or wave Condition Suggested solutions VerticalRepetitive DefectsCommon PostScript problems Common Windows problemsCommon Macintosh problems Common Linux problemsInstallable Options section to InstalledPrecautions when installing accessories Installing accessoriesInstalling a dual in-line memory module Dimm Disconnect the power cordSelect the Samsung ML-4550 Series PS printer Setting the memory in the PostScript printer propertiesRemoving a Dimm Installing a network interface cardInstalling the hard disk Using the hard diskSetting the hard disk in the printer properties Printing with the optional hard disk Setting the time and dateStoring a job Printing a stored jobControlling the active job queue Printing using the form filesTo delete a file from the queue To promote a file from the queueSpecifications Printer specificationsSpecifications and Description ECP Index System requirements Linux 3.3 Macintosh 3.3 Windows Software section Contents Using Windows Postscript Driver Using Your Printer in Linux Installing Software for Local Printing Installing Printer SoftwareTypical Installation Select Typical installation for a local printer. Click NextCustom Installation Select the components to be installed and click Next Select Custom installation. Click NextInstalling Software for Network Printing Custom Installation Installing Printer Software in Windows Changing the Software Language Reinstalling Printer SoftwareNext Removing Printer SoftwareSelect your printer driver from the Name drop-down list Printing a DocumentPrinter Settings Layout TabPaper Orientation Paper Tab SourceScaling Printing Toner Save Mode ResolutionGraphics Tab Advanced OptionsJob Setting On the Job SettingExtras Tab Using Help Using a Favorite SettingAbout Tab Printer TabPrinting Multiple Pages on One Sheet of Paper N-Up Printing Advanced PrintingPrinting Booklets Printing PostersPrinting a Reduced or Enlarged Document Printing on Both Sides of PaperFitting Your Document to a Selected Paper Size NoneUsing an Existing Watermark Using WatermarksCreating a Watermark Editing a WatermarkWhat is an Overlay? Using OverlaysUsing a Page Overlay Creating a New Page OverlayAdvanced Using Windows PostScript DriverUsing the right-click menu Using the shortcut iconOverview Direct Print Utility PrintingSetting Up a Client Computer Setting Up a Host ComputerCheck the Share this printer box Select Local Port and click New PortPrinter Setting Troubleshooting GuideUnderstanding Smart Panel Toner LevelChanging the Smart Panel Program Settings Opening the Troubleshooting GuideUsing Printer Settings Utility Using Onscreen Help FileInstalling the Unified Linux Driver Installing the Unified Linux DriverGetting Started Click Uninstall Uninstalling the Unified Linux DriverPrinters Configuration Using the Unified Driver ConfiguratorOpening the Unified Driver Configurator Double-clickUnified Driver Configurator on the desktopConfiguring Printer Properties Ports ConfigurationClasses Tab Printing from Applications Printing FilesFile menu Click Continue Installing Software for MacintoshFor a Network-connected Macintosh Setting Up the PrinterFor a USB-connected Macintosh Mac OS 8.6 ~Changing Printer Settings Layout SettingPrinting a Document ResolutionQuality Printer Features SettingPrinting Multiple Pages on One Sheet of Paper Reverse DuplexDuplex Printing Index Resolution Macintosh 36 Windows GGGGGGGGGGGGGRev
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ML-4550, ML-4551ND specifications

The Samsung ML-4551ND and ML-4550 are monochrome laser printers designed for efficient and high-quality printing in office environments. Known for their reliability and performance, these models cater to small to medium-sized businesses that require consistent output without compromising on quality.

One of the standout features of the ML-4551ND is its impressive print speed. Capable of delivering up to 45 pages per minute, this printer ensures that large print jobs are completed swiftly, optimizing workflow and productivity. The ML-4550, while slightly slower, still delivers a robust print speed of up to 40 pages per minute. Both printers can handle complex documents with ease, making them suitable for a variety of professional applications.

In terms of print resolution, the ML-4551ND and ML-4550 offer sharp and clear outputs with a maximum resolution of 1200 x 1200 dpi. This high-quality printing is ideal for producing text documents, presentations, and graphics with fine details. Additionally, Samsung's proprietary image processing technology enhances print quality and clarity, ensuring that every document meets professional standards.

The ML-4551ND and ML-4550 also feature a generous paper handling capacity, with a standard input tray that can hold up to 250 sheets of paper. For businesses with higher volume printing needs, the optional additional tray allows for an increase in capacity. Both models support various media types, including labels, envelopes, and card stock, adding versatility to meet diverse printing requirements.

Connectivity is another strong feature of the ML-4551ND and ML-4550. Equipped with USB and parallel ports, these printers can easily integrate into existing office networks. The ML-4551ND additionally provides built-in Ethernet networking capabilities, which allow multiple users to share the printer across a network, enhancing accessibility and convenience for teams.

Energy efficiency is also a key consideration with these models. The ML-4551ND and ML-4550 are designed with Eco Mode, which helps reduce toner and energy consumption during operation. This thoughtful design element not only supports sustainability efforts but also contributes to lower operating costs.

In summary, the Samsung ML-4551ND and ML-4550 are reliable and effective monochrome laser printers that provide businesses with high-speed printing, exceptional print quality, and flexible connectivity options. Their robust features and energy-efficient technologies make them a solid choice for organizations looking to enhance their printing capabilities while keeping costs under control.