Lexmark C780, C782 manual Media specifications, Unacceptable paper

Page 49

Media specifications

Curl

Curl is the tendency of media to curve at its edges. Excessive curl can cause paper feeding problems. Curl can occur after the paper passes through the printer, where it is exposed to high temperatures. Storing paper unwrapped in hot, humid, cold and dry conditions, even in the trays, can contribute to paper curling prior to printing and can cause feeding problems.

Smoothness

The degree of smoothness of paper directly affects print quality. If the paper is too rough, the toner does not fuse to the paper properly, resulting in poor print quality. If the paper is too smooth, it can cause paper feeding or print quality issues. Smoothness needs to be between 100 and 300 Sheffield points; however, smoothness between 150 and 250 Sheffield points produces the best print quality.

Moisture content

The amount of moisture in the paper affects both print quality and the ability of the printer to feed the paper properly. Leave the paper in its original wrapper until it is time to use it. This limits the exposure of the paper to moisture changes that can degrade its performance.

Condition paper while it is still in the original wrapper. To condition it, store it in the same environment as the printer for 24 to 48 hours before printing to let the paper stabilize in the new conditions. Extend the time several days if the storage or transportation environment is very different from the printer environment. Thick paper may also require a longer conditioning period because of the mass of material.

Grain direction

Grain refers to the alignment of the paper fibers in a sheet of paper. Grain is either grain long, running the length of the paper, or grain short, running the width of the paper.

For 60 to 90 g/m2 (16 to 24 lb bond) paper, grain long fibers are recommended.

Fiber content

Most high-quality xerographic paper is made from 100% chemically pulped wood. This content provides the paper with a high degree of stability resulting in fewer paper feeding problems and better print quality. Paper containing fibers such as cotton possesses characteristics that can result in degraded paper handling.

Unacceptable paper

The following papers are not recommended for use with the printer:

•Chemically treated papers used to make copies without carbon paper, also known as carbonless papers, carbonless copy paper (CCP), or no carbon required (NCR) paper

•Preprinted papers with chemicals that may contaminate the printer

•Preprinted papers that can be affected by the temperature in the printer fuser

•Preprinted papers that require a registration (the precise print location on the page) greater than ±0.09 in., such as optical character recognition (OCR) forms

In some cases, registration can be adjusted with the software application to successfully print on these forms.

•Coated papers (erasable bond), synthetic papers, or thermal papers

•Rough-edged, rough or heavily textured surface papers or curled papers

•Recycled papers containing more than 25% post-consumer waste that do not meet DIN 19 309

•Paper having a weight less than 60 g/m2 (16 lb)

•Multiple-part forms or documents

Media guidelines

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Contents C780, C782 Edition October Safety informationTrademarks Contents Contents Input options Output options Internal options Installing and removing optionsInstalling and removing options Installing a 2000-sheet drawerContinue with Installing a 500-sheet drawer Installing a 500-sheet drawer Installing a duplex unit Installing the printer Installing an output expander Installing and removing options Installing a 5-bin mailbox Installing and removing options Installing memory and option cards Installing a StapleSmart finisherRemoving the system board access cover Installing a memory card Installing an option-added firmware card Installing a hard disk Installing and removing options Card Function Installing an option cardRemoving memory and option cards Accessing the printer system boardRemoving memory cards Removing a hard disk Removing an option cardInstalling and removing options Removing an option-added firmware card Reinstalling the system board access coverUnderstanding the printer operator panel PrintingStatus Indicates Printing Sending a job to printButton Function Printing from a USB flash memory device Canceling a job from the printer operator panel Canceling a print jobCanceling a job from a computer running Windows Printing a network setup Printing a menu settingsCanceling a job from a Macintosh computer Canceling a job from a Macintosh computer running Mac OSPrinting a directory list Printing a font sample listLoading 500-sheet trays Loading the traysPrinting Loading the 2000-sheet tray Printing Loading the multipurpose feeder Printing Windows Printing on specialty media transparencies, labels, otherLoading the trays Loading the multipurpose feeder Mac OS Linking traysSelect File Print Holding a job in the printer Linking output binsPrinting and deleting held jobs Value DescriptionWindows Printing confidential jobsMacintosh Print Time FiltersEntering a personal identification number PIN At the printerEnter PIN Reserve Print Verify PrintRepeat Print Copies & Pages or General pop-up menu, choose Job RoutingPrint All Delete All JobName1 JobName2 At the printerStoring paper Tips for successful printingStoring supplies Avoiding jams Weight Paper characteristicsMedia guidelines PaperUnacceptable paper Media specificationsStoring paper Media specifications Selecting paperSelecting preprinted forms and letterhead Transparencies Media specifications Printing on letterheadEnvelopes Selecting transparenciesLabels Card stock Storing mediaDimensions Identifying media sources and specificationsMedia sizes and support Optional Finisher Standard Offset Staple Media support by type for optional featuresMedia types and weights input options Envelopes2 Media types and weights output optionsGrain long Maximum 2,3Maximum Labels- 2,4Paper labels Media capacitiesVinyl labels EnvelopesReady. Tray 1 Low, Tray Determining the status of suppliesStatus / Supplies View supplies Y KConserving supplies Supply Menu selection item What the setting doesOrdering supplies Print cartridges Maintaining the printerFuser and ITU Toner waste containerOrdering a fuser Type of fuser Printer voltage Part numberOrdering an image transfer unit and transfer roller Recycling Lexmark productsOrdering staple cartridges Identifying jams Clearing paper jamsClearing paper jams Access doors and traysPaper jam messages Understanding jam messagesMessage Check Areas What to do Expander jams Area MArea a Clearing the entire paper pathArea B Area D Area CArea E Area T1Area Tx Area K Area JArea L Clearing fuser jams Clearing mailbox, finisher, or output expander jams Area MClearing fuser jams Clearing image transfer unit jams Clearing paper jams Clearing paper jams Clearing paper jams If you still need help Disabling operator panel menus Adjusting operator panel brightness and contrastAdministrative support Restoring factory default settingsEnabling operator panel menus Encrypting the disk Adjusting Power SaverSetting the system password Setting security using the Embedded Web Server EWSUsing the secure Embedded Web Server Click ConfigurationClick TCP/IP Port Access Using Secure modeSupporting IPSec Internet Protocol Security Click 802.1x Authentication Using 802.1x AuthenticatingClick Menu Lockout Setup Locking the operator panel menusConfidential Print Setup Black only modeClick Confidential Print Setup Printing LockoutSize sensing Using the Coverage EstimatorDisabling size sensing Using the Setup Menu Configuring printer alertsUsing MarkVision Professional Using MarkVision MessengerSymptom Cause Solution Online customer support Calling for serviceChecking an unresponsive printer Check the Print as image boxTroubleshooting Solving printing problemsSet Page Protect to Off from Print Recovery For more informations, see Clearing mailbox, finisher, or Solving mailbox problemsOutput expander jams Area M See Solving high capacity feeder problems Solving option problemsOption Action Problem Solution Solving high capacity feeder problemsSolving print quality problems Solving paper feed problemsSee Loading the trays or Loading Paper pathMarks occur repeatedly only in one color Top to Bottom or Left to RightMultiple times on a Marks occur down the page repeatedly in allTo be replaced Cartridges BCD E Frequently asked questions FAQ about color printing Solving color quality problemsWhat is RGB color? How does the printer know what color to print?Is it possible to increase the gloss in the printed output? What is Manual Color Correction?Cmyk What are Detailed Color Samples and how do I access them? Avis de conformité aux normes de l’industrie du Canada Electronic emission noticesEuropean Community EC directives conformity 102 Industry Canada compliance statement Hinweis zum GS-Zeichen Noise emission levelsGerman GS mark notice Durchschnittlicher Schallpegel dBA in 1 m UmkreiMode Description Power consumption Power SaverProduct energy consumption Total energy usage106 Laser advisory label China RoHSPart Name Hazardous Substances or Elements Laser notice Statement of Limited Warranty109 Index PIN Index112
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