Faint or blurred printing, Grey background | Kyocera 3750, FS1750

5.4. Print Quality Problems

Faint or blurred printing

Check the control panel.

If theý7RQHU ORZ 7.ðëí &OHDQ SULQWHU message is displayed and the indicator is flashing, install a new toner kit. See Section 4.1.

Set the print density from the control panel to a higher level than the current setting. See Section 2.14. Make sure the Paper Type setting is correct.

Check the Ecoprint setting.

See Section 2.12.

Grey background

Check the control panel.

If theý7RQHU ORZ 7.ðëí &OHDQ SULQWHU message is displayed and the indicator is flashing, install a new toner kit. See Section 4.1.

Check the print density.

Display the print density menu from the control panel and select a lighter density setting. See Section 2.14.

Clean the main charger wire.

Open the printer's side cover. Pull the green main charger wire cleaning knob slowly in and out a few times. See Section 4.2.

Check the main charger unit installation.

Open the printer's side cover. Remove the main charger unit half way out, then reinstall it properly. See sec- tion 4.2.

Call for the assistance of a service person.

If the above checks do not solve the problem, call for the assistance of a service person.

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Kyocera 3750, FS1750 manual Faint or blurred printing, Grey background

Contents

FS-1750 FS-3750 Introduction License Limited WarrantyLimitation of Remedies Typeface Trademark Acknowledgement General Conforming to the Class a limits FCC statementConforming to the Class B limits Laser safety Interface connectorsSafety information Important note on the interface connectors Cdrh regulations Ozone concentration CE Marking Directive Declaration of Conformity U.S.A Declaration of Conformity Australia Viii ISO Canadian Department of Communications compliance statementDisclaimer Prolonged Non-use Prolonged Non-Use and Moving the PrinterMoving the Printer Kyocera ECO-PRODUCT Action program Energy Print Engine Features Maintenance FeaturesIntroduction Options Software Features CD-ROM Kyocera Digital Library Guide to the ManualPrescribe 2e Programming Manual on CD-ROM Table of Contents Xvi Xvii Xviii Clearance Positioning the PrinterPlaces to Avoid Frequency Temperature 10C to 32.5C 50F to 90.5F Humidity 20% to 80%Basic requirements Voltage Unpacking and Inspection Power Supply List of Shipped Components Front View Names of Parts Rear View Interior View Setting Up and Interfacing Open the top cover Install the toner container Close the top cover Install the waste toner bottle Open the side cover on the left side of the printer Adjusting the paper guides in the cassette and adding paper Setting Up and Interfacing Open the paper stopper on the face-down output tray Install the face-up output tray if required Serial interface Attach the power cordConnect the printer to the computer Parallel interface Print a status Set the emulation modeTest the interface with the computer Windows 95/Windows Install the printer driver CD-ROM Drive Name\drivers\Language\pcl\9x CD-ROM Drive Name\drivers\Language\kpdl\9x Windows Duplex Printing from the MP tray First Mode Automatic Manual FeedingCassette Mode MP Multi-Purpose Tray Feeding 03 WUD\ Prgh Luvw First Mode Automatic Manual Feeding Feeding Envelopes Cassette Mode Handling a Memory Card Memory CardTo Remove the Memory Card Removing the Main Circuit Board Memory Expansion Installation Withdrawing the Main Circuit Board from the Printer Installing SIMMs Installing and Removing SIMMsSimm to be used Removing SIMMs Testing the Expansion Memory Control Panel Operating the Laser Printer Message Meaning Interface IndicatorResolution Indicator Message Display Copy Indicator Paper Size Indicator Indicator Name Description Symbolic Indicators Key Function Control Keys Feed Selection Operating ProceduresSwitching Power On Stack Selection Canceling Printing On-line/Off-line Setting Status Printout Sample Status Form Feed Mode Select Menu Using the Mode Select MenuFunction Default Setting 2SWïý 520ý ý ý ý ý ý ý Parallel Interface Configuring Interfaces RAM Disk Operations Setting the RAM Disk Size Writing Data to a Memory Card Operating a Memory CardHints on Writing Fonts to the Memory Card Reading Fonts/Data from a Memory Card Deleting Data from a Memory Card Printing a list of data names Formatting a Memory Card Keys to displayý!&DVVHWWHýVLHý Setting Custom Sizes Cassette, Media Type and Custom Settings Setting the Paper Type Paper Type User Setting Making Settings Submenus displayed Selection parameters Description Sleep Ecopower Mode Dumping Received Data Cancel key KIR 2 Level White vertical stripes Ecoprint ModeOptimized stripes Dark vertical stripes Resource Protection Adjusting the Print Density Type of Error and Corresponding Audio Alarm Buzzer Setting the Audio Warning Buzzer Setting the Audio Warning Buzzer Internal Fonts Fonts Internal Scalable and Bitmap Fonts List of FontsFont Number Font samples List of Fonts Kpdl Fonts List of Fonts Supplying Toner Toner Kit ReplacementToner kit replacement interval Toner Kit to be Used To replace the toner container, proceed as follows Toner Kit Replacement Replace the Waste Toner Bottle Do not cap the new waste toner bottle Cleaning the Charger Wire CleaningMain Charger Unit Cleaning the Grid Paper Feed Unit If the printer does not print General GuideIf the printing is abnormal Interface Problems Power Problems Check the developer unit Print Quality ProblemsCompletely blank printout All-black printout Check the control panel Clean the charger wireDropouts, horizontal streaks, stray dots Black or white vertical streaks Grey background Faint or blurred printing Check the transfer roller Dirt on the top edge or back of the paperCharacters out of position Check the paper chute and the ramp Indicators Indicators and MessagesSymbolic Indicators Maintenance Messages Maintenance MessagesMessage Corrective Action DOO Vhuylfh Error Messages Error MessagesNing to ensure correct reading of the memory card 0025&$5 HUUúú Correcting a Paper Jam Printer Symbol Rear Cover Printing speed ResolutionDrum cleaning FS-1750 FS-3750 Printing method Weight Description FS-1750 FS-3750 Power requirementsPower consumption Sound pressure level at Front Dimensions General Guidelines Paper SpecificationsTable B.1 Specifications Specification Paper Size Selecting the Right PaperCondition of the Paper Composition Thickness Caliper Basis WeightMoisture Content Smoothness Paper type Media type Special Paper Adhesive-Backed Labels Table B.3 OHP Film SpecificationsTable B.4 Adhesive Label Specifications Overhead Projection OHP Film Recycled Paper EnvelopesColored Paper Preprinted Paper Parallel interface communication modes Parallel Interface Table C.1. Parallel Connector Pin Assignments Interface SignalsPin In/out Description Error* nFault Pin Data 0 1 to Data 7 8 Pins 2 toPaper Empty PError Pin Reset nInit Pin RS-232C/RS-422A Interface Interface SignalsRS-232C interface Removing the Main Circuit Board RS-422A interface Verifying the Setting Changing the Jumper Connector RDB Receive Data Pin RDA Receive Data Inverted Pin Overview of Signals RS-422ASerial Connector RS-422A interface voltage levels RS-232C/RS-422A Protocol H7 Buffer nearly-empty threshold Prescribe 2e Frpo D0 commandRS-232C Cable Connection Preparing an RS-232C Cable Ctrl P \DIR Connecting the Printer to the Computer Data On Line Index Index-2 Index-3 Basic Operations During Mode Selection Mode Select Menu From Previous VLH Hyhorshu