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Epson 4500 Problems and Solutions, Printing, Power supply, Paper handling, 7-2Troubleshooting

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Problems and Solutions

This chapter discusses problems you may encounter while operating your printer and their likely solutions. If you are having difficulty achieving the desired printing result, first locate the problem in the table below and then see the appropriate page for the solution.

Power supply

• Power is not being supplied.See 7-4

Printing

• The printer does not print.	See 7-5
• The print is faint or uneven.	See 7-6

•Dots are missing in the printed characters or

	graphics.	See 7-7
•	Printed characters are not what you expected.	See 7-8
•	The print position is not what you expected.	See 7-11

Paper handling

•Single sheets do not feed properly.

•Continuous paper does not feed properly.

•Switching between single sheets and continuous paper cannot be performed properly.

•The short tear-off function does not operate properly.

See 7-14

See 7-17

See 7-21

See 7-23

7-2 Troubleshooting

Contents

Page EPSON® Product Update Notice Print Speed Loading Single Sheets of Paper Using SelecType Page The DIP Switch Tables Table 1 International character sets Table 2 Graphics character sets Graphics character set SW l-l Table 3 Page length selection Graphics Character Sets PC 860 (Portugal) PC 863 (Canada-French) Application Notes User’s Manual Page IMPORTANT SAFETY INSTRUCTIONS the that not Contents 5 Using the Printer Options Chapter 8 Technical Specifications Chapter 9 Command Summary Appendix Glossary Index Introduction Features Options and Supplies Introduction •Pull Tractor Unit (C800141) •Multi-FontModule (#7407-A) •Film Ribbon Cartridge (#7770) About This Manual Application Notes Where to Get Help Setting Up the Printer Unpacking the Printer Removing the Protective Materials WARNING: Setting Up the Printer 1-4Setting Up the Printer Choosing a Place for the Printer 1-6 Setting Up the Printer Assembling the Printer the Printer CAUTION: Installing the Ribbon Cartridge 1-8Setting Up the Printer Page 1-10Setting Up the Printer Page Attaching the Paper Guide 1-12Setting Up the Printer Page Testing the Printer Running the Self Test LINE FEED FORM FEED POWER PAPER OUT 1 - 1 6 Setting Up the Printer LOAD/EJECT LINE the ON LINE once more 1-18Setting Up the Printer Page SW1-1 1-2 USA Invalid -./Ok23456789:;<=>,?@ABCDEFGHIJKLMNOPQRSTUV 1-20 Setting Up the Printer Graphics If the Self Test Does Not Work ProblemSolution on the 1-22Setting Up the Printer Connecting the Printer to Your Computer 1-24 Setting Up the Printer Connecting the Printer to Your Computer Setting Up Your Application Software Paper Handling Selecting a Paper Feeding Method Using Single Sheets Using Single Sheets Note: 2-4 Paper Handling Page Reloading During Printing 2-6Paper Handling Using Continuous Paper Loading Continuous Paper 2-8Paper Handling Page 2-10 Paper Handling Page 2-12 Paper Handling Page the LOAD/EJECT 2-14 Paper Handling Page Switching Between Continuous and Single Sheets Page the PAPER OUT 2-18 Paper Handling Page 2 - 2 0 Paper Handling Switching Back to Continuous Paper 2-22 Paper Handling Page Printing on Special Paper MULTI-PART 2-26Paper Handling 3.Reattach the printer cover as shown below WARNING: Multi-partForms Labels 2-28Paper Handling Page Printing on Special Paper Envelopes 2-30Paper Handling Page Using the Printer Operating the Control Panel Buttons - O N L I N E FORM FEED - L O A D / E J E C T Using the Printer SelecType --F O N T ROMAN, LQ SANS SERIF, DRAFT -CONDENSED Page Setting the DIP Switches Setting the DIP Switches The DIP Switch Tables DIP switch Table 1 International character sets Table 2 Font selection Table 3 Character spacing 3-8Using the Printer The DIP Switch Functions Auto line feed Input buffer capacity Tear-offmode Print direction of multi-passcharacters Page Length Skip Over Perforation Adjusting the Loading Position Using Micro-adjustment You can 3-14Using the Printer Using Short Tear-Off Adjusting the Tear-offPosition 3-16Using the Printer that you 3-18Using the Printer Selecting Typestyles Selecting Typestyles Character Fonts DRAFT ROMAN SANS SERIF 3-20Using the Printer This is 10 CPI printing This is 12 CPI printing Selecting an International Character Set Selecting an International Character Set #$@rwl*‘{Il’ Choosing a Character Table Page Using the Data Dump Mode Page 3-28Using the Printer Software and Graphics Enhancing Your Printing Character Spacing This is 10 cpi printing This is 12 cpi printing This is proportional printing may change Special Effects and Emphasis Emphasized and double-strikeprinting 4-4Software and Graphics R O M A N This is ROMAN, emphasized This is ROMAN, with both Italic printing Underlining, strike-through,and overlining Software Superscripts and subscripts Selecting Typestyles With Master Select 4-6Software and Graphics Page 4-8Software and Graphics Graphics I n c o m e B r e a k d o w n The Print Head Dot patterns 4-10 Software and Graphics Twenty-four-pingraphics Pin labels 4-12Software and Graphics The Graphics Command Column Reservation Numbers how A Simple Graphics Program 4-14 Software and Graphics 10 WIDTH "LPT1:",255 40 LPRINT CHR$(170); 50 NEXT Designing Your Own Graphics 4-16 Software and Graphics Page 40 READ N 50 LPRINT CHR$(N); 60 NEXT 70 LPRINT 255,255 15 FOR C-1TO 10:RESTORE 65 NEXT C User-definedCharacters User-definedCharacters Design grids Defining Your Characters 4-22 Software and Graphics Data numbers Sending Information to Your Printer 4-24Software and Graphics d0 d2 d1 10 LPRINT CHR$(27)"x0 20 LPRINT CHR$(27)"&"CHR$(0); 30 LPRINT "@@"; 40 LPRINT CHR$(1)CHR$(9)CHR$(1); 50 FOR I=1 TO Printing User-definedCharacters Copying ROM Characters to RAM 4-28Software and Graphics Letter Quality Characters Proportional mode characters Superscripts and Subscripts Mixing Print Styles 4-30Software and Graphics Page Using the Printer Options The Cut Sheet Feeder Using the Printer Options 5-4 Using the Printer Options Page 5-6Using the Printer Options Page 5-8Using the Printer Options Page Testing the Printer in the Cut Sheet Feeder Mode 5-10 Using the Printer Options Page 5-12Using the Printer Options Single-sheetInsertion 5-14Using the Printer Options Operating the Cut Sheet Feeder Paper out condition jam Control panel operation Software operation 5-16Using the Printer Options Removing the Cut Sheet Feeder 5-18Using the Printer Options The Cut Sheet Feeder The Cut Sheet Feeder 5-20 Using the Printer Options The Pull Tractor 5-22 Using the Printer Options Page 5 - 2 4 Using the Printer Options Page 5-26Using the Printer Options The Pull Tractor 5-28Using the Printer Options Page Removing the Pull Tractor 5-30 Using the Printer Options Page 5-32Using the Printer Options Page The Multi-FontModule miniature zebras zebras LMNOl'R$TljW~~ c§ Page SLOT FONT Selecting a Font 5-38Using the Printer Options Page The Interface Boards Compatible Interfaces Page Page Page Page Page Page Page #8143 New Serial Interface the Baud rate selection Handshaking timing Error handling 5-50Using the Printer Options Maintenance Cleaning the Printer Maintenance WARNINGS: 6-4Maintenance Replacing the Ribbon 6-6Maintenance Page 6-8 Maintenance Replacing the Ribbon 6-10Maintenance Transporting the Printer 6-12Maintenance Page 6-14 Maintenance Troubleshooting Problems and Solutions Options Troubleshooting Power Supply The printer does not print The ON LINE light is on but nothing is printed The ON LINE light is off The PAPER OUT light is on 7-6 Troubleshooting The print is faint or uneven (continued) The printout is faint Dots are missing in the printed characters or graphics A line of dots is missing in the printout Dots are missing in random positions Printing Roman: Sans Serif: Draft: See Chapter Printed characters are not what you expected (continued) The wrong international characters are being printed 7-10 Troubleshooting The print position is not what you expected Printing starts too high or too low on the page One line of printing has taken up two lines Line spacing is incorrect 7-12 Troubleshooting Page Paper Handling Single sheets do not feed properly (continued) button was pressed and the platen rotated, but was not fed When the LOAD/EJECT button is pressed, the paper jams LOAD/EJECT button 7-16 Troubleshooting Continuous paper does not feed properly (ON LINE on) Continuous paper does not feed properly (continued) crooked or the paper jams Continuous paper does not feed properly (continued) The paper feed is crooked or the paper jams (continued) Skip over perforation does not function 7-20 Troubleshooting may jam they then 7-22 Troubleshooting The short tear-offfunction does not operate properly One page is completely printed, but the paper does not feed Printing ended in the middle of a page Options Using thecut sheet feeder, the paper does not feed properly (continued) Options not Two or more sheets feed at the same time 7-26 Troubleshooting The paper feed is crooked One page of printing has spread to two pages The FORM FEED or LINE FEED button was but the does not feed at all. (Platen does not rotate.) 7-28Troubleshooting Paper feed is crooked or the paper jams 7-30 Troubleshooting FORM FEED 7-32Troubleshooting Using an optional interface, the printer does not operate properly (continued) 7-34 Troubleshooting Technical Specifications Printer Specifications Print method: Print speed: Printing direction: Line spacing: Optional fonts: Character fonts: Characters: Paper length: Printable area: Paper weight: Paper thickness: Copy capacity: Paper feeding methods: Friction Ribbon: Life expectancy of ribbon: MCBF: Power consumption: Frequency: Insulation resistance: Dielectric strength (between AC line and Interface Specifications Interface Specifications Interface Timing 8-10Technical Specifications Printing Enabled/Disabled Signals and Control Conditions Option Specifications Bin capacity: Stacker capacity: Environmental condition: Storage condition: Initialization Page Command Summary Using the Command Summary LPRTNT CHR$(27);CHR$(87);CHR$(1) LPRINT CHR$(27);"W";CHR$(1) LPRINT CHR$(27);"p";CHR$(1) LPRINT CHR$(27);"p";"1 Control Key Chart 9-4 Command Summary Commands in Numerical Order 9-6 Command Summary Page Commands Arranged by Topic DC3 Deselect Printer (DC1) ON LINE DEL Delete Character ESC Select Unidirectional Mode (one line) ESC U Turn Unidirectional Mode On/Off ESC EM Control Cut Sheet Feeder 9-10Command Summary MSB Control ESC Set MSB to ESC ESC # Data Control Carriage Return CAN Cancel Line 9-12Command Summary Vertical Motion ESC C Set Page Length in Lines ESC C0 by Topic ESC N Set Skip Over Perforation ESC O Cancel Skip Over Perforation Select l/B-inchLine Spacing Select 1/6-inchLine Spacing ESC + Set n/360-inchLine Spacing Set n/180-inchLine Spacing ESC A Set n/60-inchLine Spacing Perform n/180-inchLine Feed 9-16Command Summary Tab Vertically ESC B ESC b Set Vertical Tabs in Channels ESC Select Vertical Tab Channel 9-18Command Summary Horizontal Motion Set Left Margin ESC Q Set Right Margin ESC $ Set Absolute Print Position 9-20Command Summary ESC Set Relative Print Position Tab Horizontally ESC D Set Horizontal Tabs Overall Printing Style Select Letter Quality or Draft 9-22Command Summary Commands Arranged by Topic ESC k Select Typestyle Family ESC Master Select Print Size and Character Width 9-24Command Summary ESC p Turn Proportional Mode On/Off Select Condensed Mode ESC SI DC2 Cancel Condensed Mode Select Double-wideMode (one line) 9-26Command Summary ESC SO ESC W Turn Double-wideMode On/Off DC4 Cancel Double-wideMode (one line) Print Enhancement ESC E ESC F Cancel Emphasized Mode 9-28Command Summary ESC G Select Double-strikeMode ESC H Cancel Double-strikeMode ESC S0 ESC S1 Select Subscript Mode ESC T Cancel Superscript/Subscript Mode 9-30Command Summary ESC d1 d1 Turn Underline Mode On/Off ESC q Select Character Style 9-32Command Summary Word Processing ESC a Select Justification ESC SP (space) Set Intercharacter Space Character Tables ESC t Select Character Table Select Italic Mode Format: Cancel Italic Mode ESC R Select an International Character Set User-definedCharacters ESC & User-defined ESC : Copy ROM to RAM ESC % Enable Printable Characters Enable Upper Control Codes Graphics ESC K Select Single-densityGraphics Mode ESC L Select Double-densityGraphics Mode ESC Z Select Quadruple-densityGraphics Mode (n2 x 256) ESC Select Graphics Mode Topic 9 - 40 Command Summary Appendix Proportional Width Table 43C 44D 45E 47G Proportional Width Table CodeWidth A-4 A-5 Character Tables 1.lAQaq !lAQaq 11 2 B Rb r $4DTdt S4DTdt %5EUeu %5EUeu Tables O@ P’ PCB& L d a f 1I.lAQaqiizi -QB 2” 2 B R b r & iE 6 TTrz 4$4DTdtii6ii+--XC Glossary byte carriage return (CR) character set condensed control code decimal default DIP switches dot graphics dot matrix Epson Extended Graphics character table ESC (escape) code ESC/P font form Letter Quality line feed loading position memory micro-adjustment on line paper-outsensor paper tension unit parallel interface serial pull tractor unit push tractor RAM reset self test 12cpi unidirectional printing user-definedcharacters 8 Glossary Index 2 Index Master select, 4-6, -8Mathematic symbols, 3-24 Micro-adjustment, 3-13 Moving printer, 6-11 print head Multi-partforms, 2-27 Multi-partlight On line button, 3-3 On line light, 3-2 Options see Cut-sheetfeeder see Interface boards see Multi-FontModule see Pull tractor 1-13 4Index Page Page 0Control and ESCape Codes by Function Page Page Page 4500 KEY FEATURES: