Instruction/ maintenance manual of the product SQ-2550 Epson
Go to page of 315
EPSON SQ-85 0 SQ-255 0 24-NOZZLE INK JET PRINTER USER’S GUIDE.
FCC COMPLIANCE STATEMENT FOR AMERICAN USERS This equipment generates and uses radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio and television reception.
EPSON SQ-850/255 0 User’s Guide.
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, mechanical, photocopying, recording, or otherwise, without the prior written permission of Seiko Epson Corporation.
Contents About This Guide 1 Introduction 3 Chapter 1 Setting Up the Printer l- l Ink Jet Precautions ............................................................... 1-2 Unpacking the Printer ......................................................... 1-3 Choosing a Place for the Printer .
Chapter 3 Using the Printer 3-l Operating the Control Panel .............................................. 3-2 SelecType Settings ................................................................. 3-10 Page Length ......................................
Chapter 7 Troubleshooting 7-l Problems and Solutions ...................................................... 7-2 Power Supply ........................................................................ 7-3 Printing ........................................
About This Guide This user’s guide provides fully-illustrated, step-by-step instructions for setting up and operating the SQ-850 and SQ-2550 printers. Finding your way around Chapter 1 contains information on unpacking, setting up, testing and connecting the printer, so be sure to read and follow the instructions in this chapter first.
Conventions used in this guide WARNINGS must be followed carefully to avoid damage to your printer and computer. CAUTIONS should be followed carefully to ensure that your printer operates correctly. Notes contain important information and useful tips on the operation of your printer.
Introduction The SQ-850 and SQ-2550 are the latest in EPSON’s advanced line of 24-nozzle ink jet printers, combining high performance and reliability with a wide range of exciting features.
l The following nine built-in Letter Quality fonts are provided for producing high-quality documents: Roman, Sans Serif, Courier, Prestige, Script, OCR-A, OCR-B, Orator, Orator-S l Draft mode with fast, whisper-quiet printing of up to 500 characters per second in 10 cpi (10 characters per inch).
Pull Tractor Unit (C800032/C800042) The pull tractor option improves the performance of continuous paper handling. It is especially useful when printing graphics, labels, or continuous preprinted forms. Optional Interface Boards A number of optional interface boards can be used to supplement the printer’s built-in parallel and serial interfaces.
Chapter 1 Setting Up the Printer Ink Jet Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Unpacking the Printer ..................................................
Ink Jet Precautions Because the SQ-850 and SQ-2550 are the ink jet printers, certain precautions are necessary to ensure their safe and efficient operation. Even if you are familiar with other types of printers, be sure to read through this list of precautions.
Unpacking the Printer Checking the parts As you unpack the printer, check that you have all of the parts shown below and that none have been damaged during transportation. power cable platen knob cross-head screwdriver optional screw locks CAUTION: Different versions of the printer are designed for different electrical standards.
Removing the protective materials The printer is protected during shipping by screws, locking tabs, a notice sheet, and a white packing material. These protective items must be removed before you turn on the printer. After removing these items, store them with the other packaging material in case you ever need to transport your printer.
CAUTION: Using the platen knob to adjust the position of the paper interferes with the automatic paper loading system and may cause a paper jam. Before using the platen knob, always turn off the power.
5. Using the enclosed cross-head screwdriver, remove the transport screws and locking brackets as shown below. (SQ-850 only has two screws and single locking bracket.) CAUTION: Never leave the transport screw in the printer because of it can damage the print head.
Choosing a Place for the Printer There are several important things to consider when selecting a location for your printer. Make sure to keep the following in mind. l Place the printer on a flat, stable surface. l Place the printer close enough to the computer for its cable to reach.
The illustrations below show several good printer and computer arrangements. Note: If you plan to use a printer stand, read through the list of requirements and suggestions below to ensure that you have the right stand for your printer. l The stand should be able to support at least twice the weight of your printer (24.
Assembling the Printer After you have decided on a suitable location for your printer, it is necessary to install the paper guide, and the ink cartridge. Before assembling the printer, make sure that all protective materials have been removed. Installation instructions for these components are given below.
2. Make sure that the guide is in its upright position. If not, raise the guide slightly until it locks into position. Installing the ink cartridge Your printer’s ink cartridge is completely self contained and allows for easy installation and removal.
WARNING: Skin and Eye Irritant This ink contains potassium hydroxide and may cause irritation on contact with skin and eyes. Please take the following precautions: l Avoid contact with skin and eyes. If ink gets into eyes, flush immediately with water and contact a physician.
WARNING: Never install or remove the ink cartridge when the power is on line. Always set the printer off line, and be sure the print head is capped at the left of the printer before removing or replacing the ink cartridge. 2. Insert the end of the cartridge with the foil plug into the ink compartment as shown in the illustration below.
3. Close the ink cartridge compartment cover- Setting Up the Printer 1-13.
Testing the Printer Now that your printer is fully assembled, you can use the built-in self test function to see that the printer is working correctly even though it is not connected to a computer. Be sure to perform this test to make sure that your printer was not damaged during shipping and to ensure that the ink cartridge is correctly installed.
2. Check the printer’s label to make sure that the power rating required by the printer matches that of your electrical outlet. WARNING: If they do not match, contact your EPSON dealer without connecting the power cable. 3. Connect the power cable to the AC inlet on the printer’s rear panel.
4. Plug the power cable into a properly grounded electrical outlet. Note: Although the shape of the power cable provided with your printer may differ from the one shown above, the steps for connecting it are the same. Charging the ink cartridge Before operating your printer, you need to charge the ink delivery system with ink.
Before charging the ink, make sure that the ink cartridge is installed and the printer is turned off. 1. While holding down both the ON LINE and LINE FEED buttons, turn on the printer. This initiates a three-minute cleaning and set up cycle that prepares the ink system for operation.
WARNING: l Do not turn the printer off while the message INK CHARGE *** is displayed. l Do not start printing before the ink charge is completed. Printing without charging the ink delivery system can damage the printer. 3. Turn off the printer. WARNING: After you turn off the printer, always wait at least five seconds before turning it back on.
Running the self test The self test can be run in either draft mode or Letter Quality mode, depending on which button you hold down as you turn on the printer. Note: For the purposes of setting up and testing your printer, most types of paper can be used.
Testing the Printer 2. Press the PAPER SELECT button on the control panel until the message on the LCD shows Friction. 3. Move the left edge guide until it rests against the guide mark.
Testing the Printer 4. Adjust the right edge guide to match the width of your paper. Next, slide a sheet down between the edge guides until it meets resistance.
Testing the Printer 6. Press the ON LINE button to start the self test. 7. A list of your printer’s current settings are printed first, followed by a series of characters. The self test continues until the paper runs out or you press the ON LINE button.
Testing the Printer 8. If paper is still loaded, press the LOAD/EJECT button to eject it. Then reset the printer by pressing both the ON LINE and LOAD/EJECT buttons.
Testing the Printer Parts of typical draft and Letter Quality self tests are shown below. Draft mode FONT PITC H LINE SPACING PAGE TRACTE R PAGE CSF BN 1 PAGE CSF BN 2 1” SKI P AUTO TEAR OF F LEFT M.
Testing the Printer Letter Quality mode FONT PITC H LINE SPACIN G PAGE TRACTE R PAGE CSF BN 1 PAGE CSF BN 2 1” SKIP AUTO TEAR OF F LEFT MARGIN Setting Up the Printer 1-25.
Testing the Printer Checking the operation If the self test does not print properly, check the points below. The points that need to be checked are the print head area and the control panel operation. If paper is jammed, turn off the printer. Then remove the paper using the platen knob, and load a new sheet.
Testing the Printer Problem The print head moves, but nothing is printed. The print is faint or uneven. Dots are missing in the printed characters or graphics. ABC D The printout has a blurred appearance. ABCD Solution The printer may not have been charged with ink.
Connecting the Printer to Your Computer Your SQ-850 or SQ-2550 has two separate interface connections: a parallel interface and an RS-232C compatible serial interface. If you are not sure which one is required by your computer, check your computer manual for this information.
Connecting the Printer to Your Computer 2. Squeeze the wire clips together until they lock in place on both sides of the connector. (If you do not lock these clips into place, the printed results may be incorrect.1 3. If your cable has a ground wire, attach it to the ground connector beneath the interface connector.
Connecting the Printer to Your Computer The serial interface Connect the serial interface cable as described in this section. Before connecting the serial interface cable, make sure that both the printer and your computer are turned off. 1. Plug the connector of the cable securely into the printer- 2.
Connecting the Printer to Your Computer Note: If the screws that come with the cable do not fit into the connector screw locks on the interface, you need to replace these screw locks with the optional ones provided with the printer. 3. If your cable has a ground wire, attach it to the ground connector beneath the interface connector.
Setting Up Your Application Software Now that you have set up and tested your printer you should make sure that it works with the application programs you want to use. Most application programs let you specify the type of printer you are using so that the program can take full advantage of the printer’s features.
Connecting the Printer to Your Computer If none of these printers is listed, select the first one available on the following list: LQ EX FX LX RX MX EPSON printer Standard printer Draft printer To use all the features of the SQ-850 or SQ-2550, however, it is best to use a program with the SQ-850 or SQ-2550 on its menu.
Chapter 2 Paper Handling Choosing Paper ....................................................................... 2-2 Using Single Sheets ................................................................ 2-3 Loading a sheet ..............................
Choosing paper Because the SQ-850 and SQ-2550 are ink jet printers, paper absorbency is especially important. With paper that is too absorbent, the ink can spread slightly, causing characters to blur. However, with paper that is not absorbent enough, the ink may take too long to dry and can be smeared easily.
Using Single Sheets Your printer can handle a wide range of paper size up to a maximum width of 257 mm (10.1 inches) on the SQ-850 and 364 mm (14.3 inches) on the SQ-2550. Loading a sheet To load a single sheet of paper, follow these steps. 1. Turn on the printer.
Using Single Sheets 2. Press the PAPER SELECT button until the LCD panel shows 3. Move the left edge guide until it rests against the guide mark. 2-4 Paper Handling.
Using single sheets 4. Adjust the right edge guide to match the width of your paper. 5. Slide a sheet of paper down between the edge guides until it meets resistance.
Using Single Sheets 6. Press the LOAD/EJECT button once to load the paper. Note: If the platen turns without loading the paper, remove the paper and re-insert it more firmly; then press the LOAD/EJECT button again.
Using Single Sheets 7. Press the ON LINE button to set the printer on line. WARNING: Never use the platen knob for paper feeding except in case of a paper jam or other paper feeding problem. Use of the platen knob may affect the loading and short tear-off positions.
Using Continuous Paper The tractor built into the SQ-850 and SQ-2550 is remarkably easy to load and operate. Its low-profile design takes up little space and can handle a wide variety of paper widths (up to maximum of 279 mm (11.0 inches) on the SQ-850, and 406 mm (16.
Using Continuous Paper Loading continuous paper Before loading continuous paper, make sure that the printer is turned off. 1. Remove the paper guide by tilting it up and lifting it off of the printer. I 2. Turn on the printer, and press the PAPER SELECT button to changes the display to Tractor .
Using Continuous Paper 3. Release the left and right sprocket lock levers by pushing them back. Slide the left sprocket unit until it stops at the ring and lock it in place. Next, slide the right sprocket unit to roughly match the width of your paper, but do not lock it.
Using Continuous Paper 5. 6. Open the sprocket covers. Slide the paper support to a point midway between the sprocket units. Paper Handling 2-11.
Using Continuous Paper 7. Fit the first four holes in the continuous paper over the pins of the sprocket units. 8. Close the sprocket covers. 2-12 Paper Handling.
Using Continuous Paper Note: Make sure the first sheet of paper has a clean, straight edge so that paper can feed smoothly into the printer. 9. Slide the right sprocket unit to a position where the paper is straight and has no wrinkles, and then lock it into place.
Using Continuous Paper 11. Press the LOAD/EJECT button to feed paper to the loading position. Note: If you press the LOAD/EJECT button when continuous paper is already loaded, the paper is reverse fed to the standby position. 12. Press the ON LINE button to set the printer on line.
Using Continuous Paper The printer remembers this loading position and advances each page to the same position. Never adjust the loading position using the platen knob. Use of the platen knob may affect the loading and short tear-off positions. If you need to adjust this position, you can use the micro-adjustment feature.
Switching between Continuous and Single Sheets Even with continuous paper loaded in the printer, you can easily switch to single sheet printing without removing the continuous paper from the tractor. Switching to single sheets To switch from continuous paper to single sheets, follow the steps below.
2. Tear off any printed sheets or extra blank sheets. If you are not using the short tear-off feature, press the FORM FEED button to advance your document to a point where it can be removed. Note: If the perforation of the page is not fed past the edge of the paper bail the first time, press the FORM FEED button again.
3. 4. Raise the paper guide until it locks into place. Press the PAPER SELECT button to change the display on the LCD to Friction. The continuous paper is fed backward automatically to its standby position. The paper is still attached to the tractor, but is no longer in the paper path.
5. SIide the left edge guide until it rests against the guide mark. Next, adjust the right edge guide to match the width of your paper. 6. Slide a sheet of paper down between the edge guides until it meets resistance.
7. Press the LOAD/EJECT button once to automatically load the paper. 8. Press the ON LINE button to set the printer on line. 2-20 Paper Handling.
Switching back to continuous paper It is also easy to switch back to printing with continuous paper. Before switching back to continuous paper, make sure that the printer is off line.
3. Lift the paper guide slightly and lower it onto the back of the printer. 4. Press the ON LINE button to set the printer on line. 2-22 Paper Handling.
Printing on Special Paper In addition to using single sheets and continuous paper, your printer can also print on a wide variety of paper types, including labels and envelopes. Note: If you are printing graphics, preprinted forms, or labels, it is recommended that you use the optional pull tractor to print.
Printing on Special Paper 1. Remove the printer cover. 2. Set the paper thickness lever position by pulling down as you may need. 2-24 Paper Handling.
Printing on Special Paper 3. Reattach the printer cover. CAUTION: Always return the lever to its upright position when you go back to printing on ordinary paper. Labels If you need to print labels, choose the type that is mounted on a continuous backing sheet with sprocket holes for use with the tractor.
Printing on Special Paper WARNING: Never feed labels backward through the printer. Labels can easily come off the backing and jam the printer. Also, never use the tear-off function or the LOAD/EJECT button to eject labels. If a label does become stuck in the printer mechanism, refer the problem to your dealer.
Printing on Special Paper 2. Tear off the sheet of labels at the perforation behind the push tractor. Note: Since labels are especially sensitive to temperature and humidity, always use them under normal operating conditions. 3. Press the ON LINE button to set the printer off line.
Printing on Special Paper Envelopes You can print on a variety of envelopes -- including air mail, plain, or bond envelopes -- using the single sheet loading feature described in the beginning of this chapter. Chapter 5 describes using envelopes with the cut sheet feeder.
Printing on Special Paper If it is necessary to eject the printed envelope, press the ON LINE button to set the printer off line. Then press the LOAD/EJECT button. CAUTION: When printing on envelopes, be sure that your application program settings keep the printing entirely within the printable area as shown below.
Printing on Special Paper Note: If the printed results are faint, you can use the paper thickness lever to adjust the distance between the print head and the platen.
Chapter 3 Using the Printer Operating the Control Pane l .......................................................... .3-2 The displa y ...................................................................................... 3-2 The lights ...............
Operating the Control Panel The SQ-850 or SQ-2550 control panel is made up of three elements: the Liquid Crystal Display (LCD), indicator lights, and the buttons (six flush mount buttons and four raised buttons).
Operating the Control Panel The lights POWER (green): READY (green): On when the printer is turned on and power is supplied. On when the printer is ready to accept input data.
Operating the Control Panel The buttons ON LINE: FORM FEED: LINE FEED: LOAD/EJECT: 3-4 Using the Printer This button controls the printer’s on line/off line status. When the printer is on line, the ON LINE light is on and the printer can receive and print data from the computer.
Operating the Control Panel FONT: Press this button to select a character font. The selected font is shown on the display. Pressing this button displays fonts in the following order: Draft, Roman, S Serif (Sans Serif), Courier, Prestige, Script, OCR-B, OCR-H, Orato r Orator-S See the section on fonts in this chapter for more information.
Operating the Control Panel PITCH: PAPER SELECT: Press this button to select the character spacing. You can choose 10, 12, 15, 17 or 20 cpi (characters per inch) or I’S (Proportional). The selected character spacing is shown on the display. See the section on character spacing in this chapter for more information.
Operating the Control Panel TEAR OFF: MICRO FEED: Press this button to feed the perforation of continuous paper to the tear-off edge of the printer. After tearing off the paper, press this button again to feed the paper backward to the loading position.
Operating the Control Panel SelecType: CLEANING: Press both the ON LINE and FORM FEED buttons at the same time to enter the SelecType mode. In the SelecType mode, the FONT, PITCH, PAPER SELECT, and TEAR OFF buttons can be used as SelecType panel buttons.
Operating the Control Panel Other control panel features Self test: By holding down the LINE FEED button (for draft) or FORM FEED button (for Letter Quality) while you turn on the printer, you can start the printer’s self test. The self test printout lets you check the current settings and operating status of the printer.
SelecType Settings SelecType SelecType on the SQ-850 or SQ-2550 brings a new dimension to printing. With SelecType you can control almost every aspect of printer operation.
SelecType Settings The possible settings are listed below. FONT Draft, Roman, Sans Serif , Courier, Prestige, Script, OCR-B, OCR-H, Orator, Orator-S PITCH 10CPI, 12CPI, 15CPI*, I7CPI, 20CPI, Propo.(Proportional)* * Some fonts cannot be printed in 15 CPI and/or proportional spacing.
SelecType Settings COUNTRY USA, France, Germany, U K Denmark 1, Sweden, Italy , Spain 1, Japan, Norway, Denmark 2, Spain 2, Latin America , Korea, Lega l PRINT DIR INTERFACE BAUD RATE* Parallel, Seria.
SelecType Settings l INTERFACE: If your computer has a serial interface, you need to change the interface setting to Serial. If you are using an optional interface board, be sure that the interface setting is Parallel, regardless of the actual type of interface you installed.
SelecType Settings Changing the SelecType settings The following example describes the procedure for changing the CG TABLE option, but the other options can also be changed in the same manner. 1. Press the ON LINE and FORM FEED buttons at the same time to enter SelecType so that the display shows FONT xxx (xxx is the current selected font).
SelecType Settings 2. Press the FONT button (or PITCH button) until the dispaly on the LCD changes to CG TABLE Italic. 3. Press the PAPER SELECT or TEAR OFF button several times until the right half of display changes to Graphic.
SelecType Settings Note: l The settings changed by SelecType do not come into effect until the printer is initialized. Initialize (reset) the printer after changing any of the settings with SelecType.
SelecType Settings You can also initialize the printer by using the software command (ESC @) or by turning off the printer. See the section on initialization in Chapter 7 for more information.
Page Length The SelecType function also enables you to set the page length of paper used with the tractor feeding system or the cut sheet feeder. The page length can be set in 1/6th of an inch units within a range of 24 lines to 132 lines. Be sure that the page length is correctly set for the type of paper you are using.
Skip Over Perforation By adjusting the SelecType 1” SKIP option, you can set skip over perforation to ON or OFF. If this feature is ON when you use continuous paper, a one-inch margin is provided between the last printed line on one page and the initial printable line on the next page so that the printer skips over the perforation.
Skip Over Perforation 1” SKIP On (Skip over perforation ON) To set skip over perforation to provide a one-inch margin using SelecType, turn on the 1” SKIP option by following the steps in the Using SelecType section earlier in this chapter. Note: Most application programs take care of top and bottom margins.
Adjusting the Loading Position The Loading Position The loading position is the position of the paper when it has been automatically loaded by the printer. The loading position is important because it determines where the printing begins on each page.
Adjusting the Loading Position Adjusting the loading position To adjust the loading position, follow these steps: 1. Load your paper. 2. Press the MICRO FEED button (the A button or button). The display shows TOF ADJUST (TOF stands for top of form). 3.
Short Tear-off What happens in short tear-off mode There are two ways of operating the short tear-off feature. One way is to set the AUTO TEAR OFF option with SelecType.
Short Tear-Off The short tear-off feature operated by the TEAR OFF button is described below. 1. When you have finished printing, press the TEAR OFF button once to feed the perforation of your page forward to the tear-off edge of the paper bail. 2. Tear off the page using the tear-off edge of the paper bail.
Short Tear-Off Note: If the perforation of the paper does not meet the tear-off edge, adjust the tear-off position of the paper with the micro-adjustment feature described on the next page. 3. Press the TEAR OFF button again to reverse-feed the paper to its loading position.
Short Tear-Off Adjusting the tear-off position If you need to adjust the tear-off position of the perforation to meet the tear-off edge, use the micro-adjustment feature. The same procedure can be used regardless of whether you set the tear-off position using SelecType or with the TEAR OFF button.
Short Tear-Off 2. Adjust the tear-off position in 1/180th of an inch increments by pressing the button A to feed the paper forward or the button to feed it backward. CAUTION: The short tear-off feature can only be used with the built-in tractor feeding system.
Selecting Typestyles Your printer can produce a wide range of typestyles by using different character fonts, character spacings, widths, and other print variations. You can select typestyles in three different ways: by using software commands, by using SelecType, or by using other features available on the control panel.
Selecting Typestyles The following samples show the character set available for each font. We've just seen your excellent ad for miniature zebras in a recent back issue of Trader's Times.
Selecting Typestyles COURIER We've just seen your excellent ad fo r miniature zebras in a recent back issue of Trader's Times. What is the price schedul e for quantities over one gross? PRESTIGE We've just seen your excellent ad for miniature zebras in a recent back issue of Trader's Times.
Selecting Typestyles We've just seen your excellent ad for miniature zebras in a recent back issue of Trader's Times. What is the price schedule for quantities over one gross? OCR-B We've just seen your excellent ad for miniature zebras in a recent back issue of Trader's Times.
Selecting Typestyles ORATOR-S We've just seen your excellent ad for miniature zebras in a recent back issue of Trader's Times, What is the price schedule for quantities over one gross? Draft mode uses fewer dots per character for high-speed printing, which makes it ideal for rough drafts.
Character spacing For most of the ten built-in fonts, you can choose a character spacing of 10, 12, 15, 17, 20 characters per inch (cpi), or proportional spacing. To select a spacing, press the PITCH button until the display shows the desired spacing.
Selecting Typestyles For the fixed pitch settings (10, 12, 15, 17 and 20 cpi), each character is given an equal amount of space. For proportional spacing, character width varies from one character to the next. For example, a narrow letter like i receives less space than a wide letter like W.
Selecting an International Character Set The capability to select an international character set provides you with a range of characters and symbols used in other languages. By using the SelecType COUNTRY option, you can select one of fifteen international character sets.
Choosing a Character Table The SelecType CG TABLE setting lets you select the italics character table, the EPSON Extended Graphics character table, or the download character table.
Choosing a Character Table Sample printouts of the italic characters and the EPSON Extended Graphics characters are shown below. Italics EPSON Extended Graphics To select the italic character table, E.
Data Dump Mode Your printer has a special feature to make it easy for experienced users to find the cause of communication problems between the printer and application programs. In data dump mode, an exact printout of the codes reaching the printer is produced.
Data Dump Mode 2. Run either an application program or one you have written in any programming language. Your printer prints all the codes sent to the printer in hexadecimal format as shown below. 3. To turn off the data dump mode, press the ON LINE button to take the printer off line, and then turn off the printer.
Data Dump Mode Look at the data dump printout shown in Step 2. By comparing the characters printed in the right column with the printout of hexadecimal codes, you can check what codes are being sent to the printer. If characters are printable, they appear as their true ASCII characters.
Chapter 4 Software and Graphics Enhancing Your Printing ...................................................... 4-2 Character spacing ............................................................... 4-2 Character size ...................................
Enhancing Your Printing You can obtain a wide variety of printing effects with the SQ-850 or SQ-2550, from changing the number of characters printed per inch to using special effects or adding emphasis to selected words and phrases. This section gives you a sampling of the features you may want to select with your software.
Enhancing Your Printing In 10, 12, and 15 cpi, each character is given the same amount of space. The width of proportional spacing, however, varies from character to character. Therefore, a narrow letter like i receives less space than a wide letter like W.
Enhancing Your Printing Condensed Both 10 and 12 cpi printing can be reduced to about 60% of their normal width using the condensed mode. This mode is particulary useful for printing wide spreadsheets because condensed 12 cpi allows you to print up to 272 characters on an 13.
Enhancing Your Printing Emphasized and double-strike printing Emphasized and double-strike give your printing added emphasis. In emphasized mode, the SQ-850 and SQ-2550 print each character twice as the print head moves across the paper, with the second character offset slightly to the right of the first.
Enhancing Your Printing Overlining, strike-through, and underlining The overline, strike-through, and underline modes are useful for highlighting selected text. This feature can be used to score text, spaces, subscripts, and superscripts without a break.
Enhancing Your Printing Selecting typestyles with Master Select Your printer has a special ESCape code called Master Select that allows you to choose many possible combinations of nine different modes: 10 cpi, 12 cpi, proportional, condensed, emphasized, double-strike, double-width, italics, and underline.
Enhancing Your Printing For example, to print a title, you may want to use double-width 12 cpi characters and print them in double-strike mode. You would add three numbers together to calculate the va.
Graphics The dot graphics mode allows your printer to produce pictures, graphs, charts, or almost any other graphics you can think of. Because many commercial software programs use graphics, you may be able to print pictures and graphs like the ones on this page and the next by simply giving your software a few instructions.
Graphics Income Breakdow n The print head To understand dot graphics you need to know a little about how your printer’s print head works. The printer has a 24-element print head. On the SQ, these elements are ink nozzles. Electrical impulses cause the nozzles to transfer ink to the paper to produce a pattern of small dots.
Graphics Dot patterns Your printer’s print head is able to print graphics as well as text because graphic images are formed on the printer about the same way that pictures in newspapers and magazines are printed. If you look closely at a newspaper photograph, you can see that it is made up of many small dots.
Graphics Labeling the nozzles To tell the printer which nozzles to fire in each column, you first divide each of the vertical columns into three sections of eight nozzles each and consider each section separately.
Graphics With this numbering system, any combination of the eight nozzles adds up to a decimal number between 0 and 255, and no numbers are duplicated. Since there are 24 nozzles in each column, you must make a calculation for each of the three sections in each column.
Graphics In this command, m selects the graphics option and nl and n2 specify the number of columns to reserve for graphics. The available graphics options are listed below. Option Elements m Horiz.density dots/in. Single-density ! 8 0 60 Double-density 8 1 120 High-speed double-density* 8 2 120 Quadruple-density* 8 3 240 CRT I 8 4 80 -.
Graphics For example, if you wish to send 1632 columns of graphics data, nl should be 96 and n2 should be 6 because 1632 = 96 + 6 x 256. The printer will interpret the number of bytes determined by nl and n2 as graphics data, no matter what codes they are.
Graphics Using hand-calculated data to print graphics With what you know now, you can use the simplest application of graphics - using hand-calculated data to print graphic images. While this method is the most tedious, it helps you understand dot graphics.
Graphics Write the assigned values of the nozzles next to your design and then total the values for each column of dots. These totals are the values that will be sent to the printer as graphics data to print the design. Below is shown the same grid divided into three sections to make the data calculation easier.
Graphics Here is the BASIC program that prints the design shown on the previous pages. Notice that the data numbers in lines 80-140 are the same numbers that you see in the last illustration. Also note that the WIDTH statement in line 10 is for IBM PC BASIC; the format may be different for your system.
Graphics Adding the following lines to the preceding program will cause the pattern to print 10 times in a row as shown below. 15 FOR C=l TO 10: RESTORE 65 NEXT C Individual graphics option commands As previously mentioned, your printer responds to commands that are used by EPSON FX, RX, LX, and EX series printers.
Graphics The reassigning command The SQ has a command that allows you to change the graphics option assigned to any of the four individual graphics options commands.
User-defined Characters With this printer, it is possible to define and print characters of your own design. You can design an entirely new alphabet or typeface, create characters for special applicat.
User-defined Characters Design grids To design a character you use a grid that is 24 dots high - one dot for each nozzle on your printer’s print head. The width of the character matrix is dependent upon the character set in use. For draft characters, the grid is nine dots wide.
User-defined Characters There is one restriction in designing characters. Dots in the same row may not print in adjacent columns. That is, there must be an empty dot position to the left and to the right of each dot that prints. This is true in draft, Letter Quality, and proportional.
User-defined Characters Data numbers The bits within each byte have values of 1, 2, 4, 8, 16, 32, 64, and 128. In the vertical column of dots, the bits are arranged so that the most significant bit (which has a value of 128) is at the top and the least significant bit (which has a value of 1) is at the bottom.
User-defined Characters Now you have seen how to design a character by placing dots on a grid and translating the dots to decimal equivalents. The last step in defining a character is to send this information to the printer.
User-defined Characters An example will show how to specify nl and n2. If, for instance, you wanted to redefine the characters A through Z, nl would be A (or ASCII code 65) and n2 would be Z (or ASCII code 90). So the command ESC & 0 AZ (followed by the appropriate data) would replace the entire alphabet of capital letters.
User-defined Characters 60 READ A: LPRINT CHR$(A); 70 NEXT I 80 LPRINT "@@@@@" 90 LPRINT CHR$(27)"%"CHR$(l); 100 LPRINT "@@@@@" 110 LPRINT CHR$(27)"%"CHR$(~); 1.
User-defined Characters Run the program to see the printout below: As you can see, both sets of characters (the original ROM characters that the printer normally uses and the user-defined character set) remain in the printer available for your use. The command to switch between the two sets is used in line 90 and 110.
User-defined Characters Therefore, your printer has a command which allows you to copy all of the standard characters from ROM to the user-defined character set. The command format is as follows, where the value of n represents the font family: ESC: 0 n 0 Note: This command will cancel any user-defined characters you have created.
User-defined Characters Remember that in Letter Quality and proportional modes, as in draft, you cannot place dots in adjacent columns. There must be an empty dot position to the left and right of each dot that prints. Superscripts and subscripts You can also create superscript and subscript user-defined characters.
User-defined Characters Since super/subscript characters are smaller, they do not require as much information when you define them. When you define super/subscript characters, you need only two bytes of data for each vertical row of dots. Design grids for these characters are shown in the figure below.
User-defined Characters Mixing print styles Each of the three user-defined character modes (draft, Letter Quality, and proportional) can be used in combination with most of your printer’s various print styles. For instance, emphasized works with user-defined characters.
Chapter 5 Using Printer Options The Cut Sheet Feeder ............................................................. 5-2 Installation ............................................................................ 5-2 Paper handling .......................
The Cut Sheet Feeder The optional cut sheet feeders give you easier and more efficient handling of single sheet paper. Printer Single-bin Double-bin SQ-850 C806081 C80609 1 SQ-2550 C806101 C806111 You can use the cut sheet feeder without removing continuous paper.
The Cut Sheet Feeder Note: If you plan to switch between cut sheet feeder use and continuous paper, load continuous paper as described in Chapter 2. 2. Hold the assembled cut sheet feeder in both hands and fit its notches over the pins of the printer.
The Cut Sheet Feeder Paper handling No matter which cut sheet feeder (CSF) bin you select, the paper is loaded in the same way. The procedure for loading CSF bin 1 (the front bin) is used in the following example. (The C806081 and C806101 have only one bin.
The Cut Sheet Feeder 3. Pull the left and right paper set levers of the selected bin forward until the paper guides retract and lock open to allow for paper loading. Then pull up the two small levers on the paper guides. 4. Take a stack of paper and fan it.
The Cut Sheet Feeder 5-6 Using Printer Options.
The Cut Sheet Feeder 7. Turn on the printer. 8. Press the ON LINE button to set the printer off line. 9. Press the PAPER SELECT button to change the display on the LCD to CSF bin 1. Press the PAPER SELECT button again if you wish to select CSF bin 2. If continuous paper is loaded, the paper is reverse-fed.
The Cut Sheet Feeder Testing the printer in the cut sheet feeder mode When you perform the cut sheet feeder self test, the printer counts the number of lines on the page and prints out this number at the bottom of the first page, as shown on the next page.
The Cut Sheet Feeder The following figure shows part of the printout for the first sheet of the draft mode self test. The printout of the second sheet is similar to the original self test described in Chapter 1. 3. The self test continues until the paper runs out or until you press the ON LINE button.
The Cut Sheet Leader Note: To resume the test, press the ON LINE button once more. 4. To end the self test, if paper is loaded, press the FORM FEED button to eject it. Then, turn off the printer. Loading envelopes Envelopes are loaded in much the same way as regular paper.
The Cut Sheet Feeder 2. Slide the right paper guide to match the width envelopes. of your 3. Pull the left and right paper levers forward and push down on the two small levers until they lock into position.
The Cut Sheet Feeder 4. Take a stack of envelopes and fan it; then tap the stack on a flap surface to even it up. Insert the envelopes into the front bin. (You can stack up to 25 standard envelopes into the bin. See the printer specifications section for more information.
The Cut Sheet Feeder Using the cut sheet feeder After stacking paper in the cut sheet feeder, be sure that the ON LINE light is lit. When the printer is on line, a new sheet of paper loads automatically whenever a printable character or line feeding command is sent to the printer.
The Cut Sheet Feeder FORM FEED: LOAD/EJECT: When there is no paper in the printer and you wish to load paper manually, press this button to load the paper. (However, note that paper loads automatically when you print.) When there is paper in the printer, press this button to eject the sheet without loading the next sheet.
The Cut Sheet Feeder If the paper reaches the bottom of the print area when any of the following line feeding commands is used, the sheet in the printer is automatically ejected and the next sheet is loaded.
The Cut Sheet Feeder 2. To switch from cut sheet feeder operation to continuous paper, press the PAPER SELECT button until the display shows Tractor. position. Continuous paper is fed to its loading 3. Press the ON LINE button to set the printer on line.
The Cut Sheet Feeder If you want to use the short tear-off feature, you can tear off the perforation of the continuous paper at the cut sheet feeder’s edge. See the section on short tear-off (page 3-23) for more information. WARNING: Never attempt to print on labels when the cut sheet feeder is installed.
The Cut Sheet Feeder 1. Align the single sheet with the marking on the front of the cut sheet feeder’s cover; then insert the sheet into the paper path until you feed resistance.
The Cut Sheet Feeder Removing the cut sheet feeder 1. Remove the paper stacked in the cut sheet feeder. 2. Tilt the back section of the cut sheet feeder forward to release its notches from the printer’s pins and lift off the cut sheet feeder.
The Cut Sheet Feeder After removing the cut sheet feeder, be sure to store the cut sheet feeder in its original box and packing materials. 5-20 Using Printer Options.
The Pull Tractor The optional pull tractor (C800032 for the SQ-850 and C800042 for the SQ-2550) provides optimum continuous paper handling. The pull tractor is especially useful for printing continuous preprinted forms and labels. Use of the pull tractor is also recommended for obtaining the highest quality graphics.
The Pull Tractor 2. Set continuous paper in the built-in push tractor as described in steps 3 to 9 in the section on loading continuous paper in Chapter 2.
The Pull Tractor 4. Holding the pull tractor with the gears to the right, fit the rear notches onto the rear mounting pins. 5. Tilt the tractor unit toward you until the front latches click over the front pins.
The Pull Tractor 6. Push the paper bail toward the platen and close the printer cover. CAUTION: Never use the platen knob to feed the paper while the printer is turned on. If you need to adjust the loading position, be sure to use the micro-adjustment feature described in Chapter 3.
The Pull Tractor 1. Be sure the display on the control panel shows Tractor and the paper is loaded in the push tractor. 2. Take the printer to off line. Then press the FORM FEED button to advance the paper one page so that you can fit the paper onto the pull tractor.
The Pull Tractor 3. Release the sprocket lock levers and position the sprocket units to match the width of the paper. Then adjust the paper support so that they are spaced evenly between the sprocket units. 4. Open the pull tractor’s sprocket covers.
The Pull Tractor 5. Fit the holes in the paper over the tractor pins on sprocket units and close the sprocket covers. the 6. See that the paper is not crooked or wrinkled and lock the sprocket units in place.
The Pull Tractor 7. Press in on the pull tractor knob and turn it slightly to remove any slack from the paper. 8. Attach the paper separator designed for use with the pull tractor unit.
The Pull Tractor Removing the pull tractor 1. Be sure the printer is turned off, then remove the paper separator. 2. Open the printer cover and pull the paper bail toward you.
The Pull Tractor 3. Press the levers on the pull tractor. Then tilt the tractor back and lift it off the printer. 4. Push the paper bail back and close the printer cover. After removing the pull tractor, be sure to store the pull tractor in its original packing materials and box.
Interface Boards There are a number of optional interfaces that can be used to supplement the capabilities of your printer’s built-in serial and parallel interfaces. Choosing an interface The following information should give you a general idea of the features provided by these optional interface boards.
Interface Boards Interface number Name #8143 New serial interface #8148 Intelligent serial interface #8165 Intelligent IEEE-488 interface #8641 Coax interface #8642 Twinax interface All EPSON interfaces have the EPSON name printed on them.
Interface Boards Removing the interface board cover 1. Unplug the power cable from the electrical outlet. Then unplug the cable from the rear of the printer.
Interface Boards 5-34 Using Printer Options.
Interface Boards Installing the board There are two basic interface board designs, which differ with respect to how the frame ground (FG) wire is attached.
Interface Boards 2. Remove the shield plate above the parallel interface connector by pressing in on the plastic clips located at the back of the plate. 3. Position the interface board inside the printer as shown below, making sure the board does not catch on any of the wires inside the compartment.
Interface Boards 4. Carefully align the pins on the optional interface board with the mating connector on the main board; then plug the board into the connector.
Interface Boards 6. Use the FG wire retaining screw to attach the round end of the FG (frame ground) wire to the ground connector beneath the interface connector.
Interface Boards WARNING: Always disconnect the printer cable from the printer’s built-in parallel or serial interface before 8. Before you use the interface board, be sure to use SelecType to set the INTERFACE option to Parallel. (For details, see the SelecType setting section in Chapter 3.
Interface Boards Baud rate selection You can select from the following baud rates: 300, 600, 1200, 2400, 4800, 9600, or 19200 bits per second (BPS). When setting the baud rate, make sure you use the bit rate selection table below.
Chapter 6 Maintenance Cleaning the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 Cleaning the Print Head . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning the Printer To keep your printer operating at its best, you should clean it thoroughly several times a year. 1. Turn off the printer and remove the cut sheet feeder or pull tractor, if installed. 2. Use a soft brush to carefully clean away all dust and dirt.
Cleaning the Printer 3. If the outer case, printer cover or paper guide are dirty or dusty, clean them with a soft, clean cloth dampened with mild detergent dissolved in water. Keep the printer cover in place to prevent water from getting inside the printer.
Cleaning the Print Head If print quality should diminish, use the printer’s built-in cleaning function. To ensure proper operation, you should use the ON LINE and LINE FEED buttons if printing becomes inconsistent. The cleaning cycle ensures that all the nozzles are delivering ink properly.
Cleaning the Print Head 2. Press both the ON LINE and LINE FEED buttons to start the print head cleaning cycle. The display shows CLEANING for about 30 seconds. When the cleaning cycle is finished, press the ON LINE button to place the printer on line and resume printing.
Replacing the Ink Cartridge When the INK END light comes on, it indicates that there is very little ink left in the cartridge. The printer will, however, continue to print until it is completely out of ink. How long this takes depends upon what you are printing.
Replacing the Ink Cartridge Follow these steps to replace the ink cartridge. 1. Open the ink cartridge compartment cover located at the front of the printer by pressing once on the area marked by the three grooves. Then carefully remove the used ink cartridge from the printer.
Replacing the Ink Cartridge 2. Insert the end of the cartridge with the foil seal into the ink compartment as shown below. Gently push the cartridge all the way into the compartment. 3. Close the cartridge compartment cover as shown below and press the ON LINE button to place the printer on line and resume printing.
Transporting the Printer If you need to transport your printer some distance, carefully repack the printer using the original box and packing materials. CAUTION: When repacking the printer for transpor- tation, press the PAPER SELECT button until the display shows Tractor.
Transporting the Printer 4. Open the ink cartridge compartment cover and remove the ink cartridge by pulling it straight out of the printer. (Place the cartridge in a plastic bag and store separately.) Then close the ink cartridge compartment cover. 5.
6. Remove the printer cover and pull the paper bail open, then insert the white packing material between the paper bail and platen as shown below. 7. Reattach the printer cover. Then remove the platen knob. 8. Pack the printer in its original foam packing supports and box.
Chapter 7 Troubleshooting Problems and Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 Power Supply .........................................................................
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 refer to the appropriate page for the solution.
Power Supply Problem Solution Power is not being supplied to the printer. The POWER light does not go on. The POWER light comes on briefly and then goes off. The light stays off even when the power is switched off and on again. The power cable may be disconnected to may not be completely plugged into the electrical outlet.
Printing Problem Solution The printer does not print or stops printing. The ON LINE light is on but nothing is printed. The ON LINE light is off (the printer is off line).
Problem Solution The PAPER OUT light is on. The INK END light is on. The “COVER OPEN" message is displayed on the control panel. The printer makes a strange noise, the buzzer sounds, and the printer stops abruptly. The print head moves, but nothing is printed.
Printing Problem The print is faint or uneven. Solution Rots are missing in the printed characters or graphics. ABC D The printing on envelopes in either faint or too dark. The printout has a blurred appearance. ABCD The print head nozzles may be clogged.
Problem Solution The printout is not what you expected. The typestyle or characters that are set by software cannot be printed. The printer prints a series of strange characters. Italic characters are printed instead of the selected graphic “line” characters.
Printing Problem . . Solution The printout is not what you expected. (continued) Graphic characters (line, ect.) being printed instead of the selected italic characters. Characters not belonging to the selected international character set being printed.
Problem Solution The characters printed are smaller than expected. The changes made with SelecType may not have been initialized. After changing the printer’s default settings, check the SelecType settings and then press both the ON LINE and LOAD/EJECT buttons before trying to print.
Printing Problem Solution The position of the printout is not what you expected. Text is printed on the same line. Text is printed with an extra blank line in between. Text is printed with an extra blank line in between, even after setting the auto line feed setting to off.
Problem Solution The position of the printout is not what you expected. (continued) Line spacing is not correct. One line of printing has taken up two lines. Your software may be set up incorrectly. Use your programs setup (or install) program to check the settings on the computer’s display.
Printing Problem Solution Regular gaps appear in the printout. Skip over perforation is set, but the perforation does not fall in the center of the skip. Vertical lines in graphics are not aligned. The skip over perforation may be set with SelecType. Enter SelecType and turn off the skip over perforation feature.
Paper Handling The following section guides you through problems in handling single sheets and continuous paper. If you are having problems using the optional cut sheet feeder or the pull tractor, refer to the section on Options starting on page 7-21.
Problem Solution Single sheets do not feed properly. (continued) The LOAD/EJECT button was pressed and the platen rotated, but paper did not feed. 7-14 Troubleshooting The left and right edge guides may be placed too close together, preventing the paper from feeding smoothly.
Problem Solution The paper feed is crooked. The paper does not fully eject. The paper guide may not be attached or it may not be in the correct position. When printing on single sheets, use the paper guide in its upright position. Refer to 2-18. The left and right edge guides may be placed too far apart.
Problem Solution Continuous paper does not feed properly. The LOAD/EJECT button was pressed and the platen rotated, but paper did not feed. The paper feed is crooked or the paper jams. Paper select may not be set to Tractor. Take the printer off line and press the PAPER SELECT button until the display shows Tractor.
Problem Solution The position of the sprocket units may not match the width of the paper. Position the right sprocket unit to remove any excess slack across the paper. Refer to 2-13. The sprocket levers may be unlocked or the sprocket covers may be open.
Problem Solution Continuous paper does not feed properly. (continued) Regular gaps appear in the printout. Skip over perforation is set, but the perforation does not fall in the center o f the skip. You may have pressed the LOAD/EJECT button with continuous paper already set at the loading position.
Problem Solution The loading position of the paper shifts slightly while printing several pages. After printing stops, the continuous paper feeds forward automatically. The short tear-off feature does not operate properly. Your application program may be setting the top and bottom margins.
Problem Solution Continuous paper does not feed properly. (continued) The LOAD/EJECT button is pressed to eject the paper, but the paper does not fully eject or it jams. 7-20 Troubleshooting You may have tried to back feed too many pages. Before ejecting the paper, always remove the last printed page.
Options Problem Solution Using the cut sheet feeder, the paper does not feed properly. The LOAD/EJECT button is pressed, but the platen does not move and the paper does not feed. After a print command is sent from the computer, the platen does not move and the paper does not feed.
Problem Solution Using the cut sheet feeder, the paper does not feed properly. (continued) The cut sheet feeder may be incorrectly installed on the printer. Remove and reinstall the cut sheet feeder making sure that the mounting notches are properly mated with the pins on the printer.
Problem Solution Two or more sheets There may be too many sheets of paper feed at the same time. in the cut sheet feeder’s bin. The bin can hold a maximum of 150 sheets of paper (82g/m 2 ). Remove some of the excess sheets. Refer to 5-2. The stack of paper may not have been loosened sufficiently.
Problem Solution Using the pull tractor in combination with the push tractor, continuous paper does not feed properly. The FORM FEED or LINE FEED button was pressed, but the paper does not feed at all. (Platen does not move.) Paper feed is crooked or the paper jams.
Problem Solution Several lines of space occur in the printout. Skip over perforation is set, but the skip has shifted from the perforation, or the perforation does not fall in the center o f the skip. After printing stops, the continuous paper feeds forward automatically.
Problem Using an optional interface, the printer does not operate properly. Solution The printer does not print or the printout is not what you expected. The interface may not be installed correctly. Turn off the printer and check that the interface board is correctly inserted into the connector on the main board.
If the printer still does not operate properly after checking the above points, run a self test of the interface to make sure that there are no on-board defects.
Chapter 8 Technical Specifications Printer Specifications ............................................................. 8-2 Printing ................................................................................. 8-2 Paper ..........................
Printer specifications Printing Printing method: 24-nozzle dot matrix Printing speed: See table below. Quality Characters per inch Characters/second/line Draft 10 500 12 600 Letter Quality 1 0 165 12 198 Printing direction: Bidirectional logic-seeking for both text and graphic printing.
Buffer: 8K bytes Character fonts: Font Available sizes (characters per inch) EPSON Draft 10, 12, 15, 17, 20 EPSON Roman IO, 12, 15, 17, 20, Proportional EPSON Sans Serif 10, 12, 15, 17, 20, Proportion.
Envelope Label Paper length: Single sheets Printable area: Single sheet 3 mm (0.12 “) or more- No.6 (165 x 92 mm) (6.5 inches x 3.625 inches) No.10 (241 x 105 mm) (9.5 inches x 4.125 inches) 63.5 x 23.8 mm (2.5 x 0.94 inches) 101.6 x 23.8 mm (4.0 x 0.
Continuous paper 8.5 mm (0.33 “) or more I SQ-850 Sh-2550 101 to 228 mm (0.4 to 9.0”) paper width 101 to 382 mm (4.0 to 15.0”) 13 mm (0.51”) or more paper width 254 mm (10”) paper width 13 mm (0.511 ") or more 21 mm (0.82 “) or more 406 mm (16 “) paper width 279 mm (11”) paper width 31 mm (1.
Paper thickness: Single sheets 0.065 to 0.10 mm (0.0026 to 0.004 inches) Continuous 0.065 to 0.10 mm (0.0025 to 0.004 inches) Envelope 0.16 to 0.52 mm (0.
WARNING -- Skin and Eye Irritant This ink contains potassium hydroxide, and may cause irritation on contact with skin and eyes. Please take the following precautions. l Avoid contact with skin and eyes. Should ink get into eyes, flush immediately with water and contact a physician.
Power consumption: Frequency: Insulation resistance: Dielectric strength (between AC line and shassis): Environment Temperature: Humidity: 120V AC ±10% (120V model) 220V AC ±10% (220V model) 240V AC ±10% (240V model) 35W (draft self-test printing) 50 ± 0.
Shock: Operation: Up to 1 G within 1 ms Storage: Up to 2 G within 1 ms Vibration: Operation: Up to 0.15 G at 10 to 55 Hz Storage: Up to 0.50 G at 10 to 55 Hz Technical Specifications 8-9.
Interface Specifications Parallel interface Your printer is equipped with both a parallel and a serial interface. Connector pin assignments and a description of their respective interface signals are shown in the following table. Return Pin 19 Signal Pin Signal Direction Description STROBE IN IN IN IN IN IN IN IN IN STROBE pulse to read data.
ecomes LOW, the printer controller is reset to its power-up state and the print buffer is cleared. This level is usually HIGH; its pulse width must be more than 50 microseconds at the receiving terminal. 32 ERROR OUT This level becomes LOW when the printer is: 1) in paper out state.
The column heading “Direction” refers to the direction of signal flow as viewed from the printer. “Return” denotes the twisted-pair return, to be connected at signal ground level. For the interface wiring, be sure to use a twisted-pair cable for each signal and to complete the connection on the return side.
Printing enabledldisabled signals and control conditions The table below shows the relationship between printing being enabled or disabled, the on line/off line status, the printer select signal (SLCT IN), and the receipt of data on/off control characters, DC1 /DC3.
Signal level Mark (1) Space (0) 3V to 27V +3V to +27V Handshaking Handshaking by DTR signal or X-on/X-off. The DTR signal changes to mark - meaning the printer is not ready to receive data - when the number of bytes free in the input buffer drops to 256.
Options Specifications Cut sheet feeders Dimensions and weight: Width Depth Hight Weight - C80608 1 537 m m 508 m m 470 mm approx. 2.6 k g C806091 664 m m 508 mm 470 m m approx. 3.2 kg C806101 537 mm 608 mm 470 m m approx. 3.5 kg C806111 664 mm 608 m m 470 mm approx.
Realiability: MCBF (Mean Cycle Between Failures): 100,000 cycles Environmental condition: Temperature Operation: +5°C to +35°C Storage: -30°C to +7O°C Humidity Operation: 15% to 80% without conden.
Printable area: Storage condition: Temperature: 2 Humidity: 40% to 60% Technical Specifications 8-17.
Initialization There are four ways that the printer can be initialized (returned to a fixed set of conditions). Hardware initialization l When the power is turned on. l When the printer receives an INIT signal at the parallel interface (pin 31 goes LOW).
Default settings The table below shows the default conditions that become valid when the printer is turned on. Item Top of form position Left and right margins Line spacing Vertical tab position Horiz.
Chapter 9 Command Summary Using the Command Summary ........................................... 9-2 Control key chart ................................................................ 9-4 Commands in Numerical Order . . . . . . . . . . . . . . . . . . .
Using the Command Summary This chapter lists and describes all the commands available on your printer. The first part of this chapter lists all commands in numerical order and gives the page number where each is fully described.
Using the Command Summary All three formats are equivalent, and it should be easy to pick the one most suited to your purpose. For instance, a BASIC programmer might refer to the first and second formats, a word processor might use the second, and a machine code programmer would use the third format.
For example, in BASIC you can turn on double-width with either of these statements: LPRINT CHR$(27);“W”;CHR$(l) ------ ASCII code LPRINT CHR$(27);“W”;“l” ------------- ASCII character Thes.
Commands in Numerical Order The following list shows control codes and ESC sequences (with their decimal and hexadecimal values), and the page number where the complete command can be found.
Commands in Numerical Order ASCII Dec. Hex. Description Page ESC ( - 40 28 ESC * 42 2A ESC + 43 2B ESC - 45 2D ESC / 47 2F ESC 0 48 30 ESC 2 50 32 ESC 3 51 33 ESC 4 52 34 ESC 5 53 35 ESC 6 54 36 ESC 7.
Commands Arranged by Topic ASCII Dec. Hex. Description Page ESC M 77 4D ESC N 78 4E ESC 0 79 4F ESC I’ 80 50 ESC Q 81 51 ESC R 82 52 ESC SO 83 53 ESC Sl 83 53 ESC T 84 54 ESC U 85 55 ESC W 87 57 ESC.
Commands Arranged by Topic The following section lists and describes all the commands by topic. See the Quick Reference Card at the end of the book for the list of the commands by topic.
DC3 Format: Deselect Printer ASCII code: DC3 Decimal: 19 Hexadecimal: 13 Comments: Puts the printer into the deselected state until the select printer code (DCl) is received. The printer cannot be reselected with the ON LINE button. If the selected state has been fixed by SelecType, this code is ignored.
Commands Arranged by Topic ESC U Format: Turn Unidirectional Mode On/Off ASCII code: ESC U n Decimal: 27 85 n Hexadecimal: 1B 55 n Comments: The following values can be used for n: 1: Mode is turned ON. 0: Mode is turned OFF. Printing is normally bidirectional.
Commands Arranged by Topic MSB Control MSB is the Most Significant Bit. MSB control (ESC =, ESC >, and ESC #) does not work for graphics or user defined characters. ESC = (equal) Format: Set MSB to 0 ASCII code: ESC = Decimal: 27 61 Hexadecimal: 1B 3D Comments: Sets the MSB of all incoming data to 0.
BEL Format: Beeper ASCII code: BEL Decimal: 7 Hexadecimal: 07 Comments: Sounds the printer’s beeper. Data Control CR Format: Carriage Return ASCII code: C R Decimal: 13 Hexadecimal: OD Comments: Prints the data in the buffer and returns the print position to the left margin.
Vertical Motion FF Format: Form Feed ASCII code: F F Decimal: 12 Hexadecimal: OC Comments: Prints the data in the print buffer and advances the paper to the top of the next form according to the current page length. Page length can be changed with ESC C.
Commands Arranged by Topic ESC C 0 Format: Set Page Length in Inches ASCII code: ESC C 0 n Decimal: 27 67 0 n Hexadecimal: 1B 43 00 n Comments: Sets the page length to n inches. The value of n must be froml-22. The top of form position is set to the current line.
Commands Arranged by Topic ESC 0 Format: Cancel Skip Over Perforation ASCII code: ESC 0 Decimal: 27 79 Hexadecimal: 1B 4 F Comments: Cancels the skip over perforation set by ESC N.
Commands Arranged by Topic ESC 2 Select l/6-inch Line spacing Format: ASCII code: ESC 2 Decimal: 27 50 Hexadecimal: 1B 32 Comments: Sets the line spacing to 1/6th of an inch for subsequent line feed commands. The 2 is the character two and not decimal code 2.
ESC A Format: Set n/60-inch Line Spacing ASCII code: ESC A n Decimal: 27 65 n Hexadecimal: 1B 41 n Comments: Sets the line spacing to n/60th of an inch for subsequent line feed commands.
Commands Arranged by Topic ESC B Format: Set Vertical Tabs ASCII code: ESC B nl n2 . . . 0 Decimal: 27 66 nl n2 . . . 0 Hexadecimal: 1B 42 nl n2 . . . 00 Comments: Sets up to 16 vertical tabs in the current line spacing. Tab settings are not affected by subsequent changes in line spacing.
Commands Arranged by Topic ESC / Format: Select Vertical Tab Channel ASCII code: ESC / c Decimal: 27 47 c Hexadecimal: 1B 2F c Comments This command is used to select the vertical tab channel, with the value of c from 0-7. All subsequent VT commands use the channel selected by this command.
ESC Q Set Right Margin Format: ASCII code: ESC Q n Decimal: 27 81 n Hexadecimal: 18 51 n Comments: Sets the right margin to n columns in the current character size. Settings made in the proportional mode are treated as 10 cpi. This command clears previous tab settings and all previous characters in the print line.
ESC $ Format: Set Absolute Print Position ASCII code: ESC $ nl n2 Decimal: 27 36 n1 n2 Hexadecimal: 1B 24 nl n2 Comments: This sequence specifies the distance from the left margin that subsequent characters are to be printed, using this formula: total number of dots = nl + (n2 x 256).
Commands Arranged by Topic HT Format: Tab Horizontally ASCII code: HT Decimal: 9 Hexadecimal: 09 Comments: Advances the print position to the next horizontal tab setting. The default settings are at intervals of eight characters in the currently selected character spacing.
Commands Arranged by Topic Overall Printing Style ESC x Format: Select Letter Quality or Draft ASCII code: ESC x n Decimal: 27 120 n Hexadecimal: 1B 78 n Comments: The following values can be used for n: 0: Selects the draft mode. 1: Selects the Letter Quality (LQ) mode.
The following values can be used for n: 0: Roman 1: Sans Serif 2: Courier 3: Prestige 4: Script 5: OCR-B 6: OCR-A 7: Orator 8: Orator-S Overrides the SelecType FONT and control panel settings.
Print Size and Character Width ESC P Format: Select 10 cpi ASCII code: ESC P Decimal: 27 80 Hexadecimal: 1B 50 Comments: Selects 10 cpi (10 characters per inch). Because 10 cpi is the default pitch, this command is normally used to cancel 12 cpi or 15 cpi.
Commands Arranged by Topic ESC p Format: Turn Proportional Mode On/Off ASCII code: ESC p n Decimal: 27 112 n Hexadecimal: 1B 70 n Comments: The following values can be used for n: 1: Mode is turned ON. 0: Mode is turned OFF. The width of proportional characters varies from character to character.
ESC SI Format: Select Condensed Mode ASCII code: ESC S I Decimal: 27 15 Hexadecimal: 1B OF Comments: Duplicates the SI command and the function of SelecType and control panel settings.
Commands Arranged by Topic ESC SO Format: Select Double-width Mode (one line) ASCII code: ESC SO Decimal: 27 14 Hexadecimal: 1B 0 E Comments: Duplicates the SO command.
Commands Arranged by Topic ESC w Turn Double-height Mode On/Off Format: ASCII code: ESC w n Decimal: 27 119 n Hexadecimal: 1B 77 n Comments: The following values can be used for n: 1: Mode is turned ON. 0: Mode is turned OFF. Double-height mode doubles the height of all characters.
Commands Arranged by Topic ESC G Format: Select Double-strike Mode ASCII code: ESC G Decimal: 77 71 Hexadecimal: 1B 47 Comments: Makes text bolder by printing each line twice. ESC H Cancel Double-strike Mode Format: ASCII code: ESC H Decimal: 27 72 Hexadecimal: 1B 48 Comments: Cancels the double-strike mode selected by ESC G.
Commands Arranged by Topic ESC Sl Format: Select Subscript Mode ASCII code: ESC S 1 Decimal: 27 83 1 Hexadecimal: 1B 53 1 Comments: Prints characters about two-thirds of the normal character height in the lower part of the character space.
ESC q Format: Select Character Style ASCII code: ESC q n Decimal: 27 113 n Hexadecimal: 1B 71 n Comments: The following values can be used for n: 0: Select normal style 1: Select outline style 2: Sele.
ESC ( - Select Line Format: ASCII code: ESC ( - nl n2 m dl d2 Decimal: 27 40 45 nl n2 m dl d2 Hexadecimal: 1B 28 2D nl n2 m dl d2 Comments: Use decimal or hexadecimal values for all variables, not ASCII characters.
Commands Arranged by Topic The last three bits of d2 determine the characteristics of the score line as shown below: Bit 2 Bit 1 Bit 0 On (1) Off (0) Broken Double Single line line on line on Continuous Double Single line line off line off Note: If Bit 1 and Bit 0 are both off, the selected score is cancelled.
Commands Arranged by Topic Word Processing ESC a Format: Select Justification ASCII code: ESC a n Decimal: 27 97 n Hexadecimal: 1B 61 n Comments: The following values can be used for n: 0: Selects left justification. 1: Selects centering. 2: Selects right justification.
Commands Arranged by Topic Character Tables ESC t Format: Select Character Table ASCII code: ESC t n Decimal: 27 116 n Hexadecimal: 1B 74 n Comments: Selects the character table used by codes 128-255. Selecting EPSON Extended Graphics does not disable italic printing.
Commands Arranged by Topic ESC 5 Cancel Italic Mode Format: ASCII code: ESC 5 Decimal: 27 53 Hexadecimal: 1B 35 Comments: Cancels the mode selected by ESC 4.
Commands Arranged by Topic User-defined Characters See Chapter 4 for sample programs and full information on this topic. ESC & Format: Define User-defined Characters ASCII code: ESC & 0 n l n2.
Commands Arranged by Topic ESC % Select User-defined Set Format: ASCII code: ESC % n Decimal: 27 37 n Hexadecimal: 1B 25 n Comments: This code is used to print the characters of the user-defined download set. ESC & is required to define the character set.
Commands Arranged by Topic ESC 7 Format: Enable Upper Control Codes ASCII code: ESC 7 Decimal: 27 55 Hexadecimal: 1B 37 Comments: When the EPSON Extended Graphics character table is selected, this code causes codes 128 through 159 to be treated as control codes.
Commands Arranged by Topic ESC L Format: Select Double-density Graphics Mode ASCII code: ESC L nl n2 Decimal: 27 76 nl n2 Hexadecimal: 1B 4C nl n 2 Comments: Turns on eight-element, low-speed, double-density graphics mode. The total number of columns = nl + (n2 x 256).
Commands Arranged by Topic ESC * Format: Select Graphics Mode ASCII code: ESC * m nl n2 Decimal: 27 42 m nl n2 Hexadecimal: 1B 2A m nl n2 Comments: Turns on graphics mode m. See the table below for details on the available modes. The total number of columns = nl + (n2 * Adjacent dots cannot be printed in this mode.
Appendix Proportional Width Table ..................................................... A-2 Character Tables ..........................................
Proportional Width Table This table lists the widths of your printer’s proportional characters. The values given are in 360ths of an inch. (For example, a value of 36 is 36/360ths of an inch.
Proportional Width Table Code 40 41 42 43 44 45 46 47 48 49 4 A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57 58 59 5A 5 B 5C 5D 5E 5F 60 61 62 63 CHR @ A B C D E F G H I J K L M N 0 P Q R S T U v w X Y Z [ .
Proportional Width Table Code CHR A-4 Appendix Width 30/20 30/20 18/12 18/12 18/12 36/24 36/24 36/24 42/28 42/28 30/20 30/20 30/20 36/24 36/24 36/24 36/24 42/28 30/20 30/20 36/24 42/28 30/20 30/20 18/.
Proportional Width Table Code D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF E0 E1 E2 E3 E4 E5 E6 E7 E8 E9 EA EB EC ED EE EF F0 F1 F2 F3 F4 F5 F6 F7 CHR Width 30 30 30 30 30 30 30 30 30 30 30 30 30 30/20 30/2.
Character Tables These character tables are selected by SelecType CG TABLE setting or using the ESC t software command. For the EPSON Extended Graphics character table, use of the ESC 6 or ESC 7 software command lets you select whether to print hex codes 80 to 9F as characters (ESC 6) or control codes (ESC 7).
Character Tables EPSON Extended Graphics Character Table Appendix A-7.
Note that these definitions apply specifically to printers. If a word is italicized, see that topic for more information. application program A program that helps you carry out a particular task, such as word processing or financial planning. ASCII American Standard Code for Information Interchange.
Glossary bit A binary digit (0 or l), which is the smallest unit of information used by a printer or computer. See also number systems. buffer See memory. byte A unit of information consisting of eight bits. carriage return The control code that returns the print position to the left margin.
Glossary control code Besides the codes for printable characters, the ASCII standard also includes 33 other codes which are called control codes. These control codes perform such functions as sounding the beeper and performing a carriage return or line feed.
Glossary double-strike printing A way of producing bolder characters. Each character is printed twice in a single pass of the print head: the second time, the dots are printed slightly below the original dots. Can only be used in draft mode. draft One of two print qualities available on your printer.
Glossary form feed A control code and a panel button that advances the paper to the top of the next page. hexadecimal (hex) See number systems. initialize To establish the initial default status of the printer by turning the printer on or sending an INIT signal.
Glossary memory The printer, like a computer, has a memory. When you print a file from a computer, the contents of the file are transferred quickly from the computer’s memory to the printer’s memory. The printer then prints information from its own memory at a much slower rate.
paper-out sensor A small switch behind the platen that sends a signal when it is not in contact with paper, causing the PAPER OUT light to go on. parallel interface See interface. parity Parity is a method for a computer and printer to check the reliability of data transmission.
Glossary push tractor A built-in device that moves continuous paper through the printer. RAM Random Access Memory. The portion of the printer’s memory used as a buffer and for storing user-defined characters. All data stored in RAM is lost when the printer is turned off.
Glossary unidirectional printing Printing in one direction only. Allows more precise vertical alignment than bidirectional printing. Often used for printing graphics. user-defined characters Characters that are defined and stored in the printer by the user.
Index A American Standard Code for Information Interchange, see ASCII Application programs, l-32-33 ASCII, 9-2, GL-1 Assembling the printer, l-l0-13 Auto line feed, 3-12-13, GL-1 B Baud rate, see Seri.
Inde x Condensed mode, 9-26-27, GL-2 Condensed printing, 4-4 setting by software commands, 9-26-27 Connecting to the power supply, l-14-16 to your computer, 1-28-31 Continuous paper, see Paper Control.
Index G Graphics, 4-9-20 commands, 4-13, 9-40-42 Graphics character table, see Epson Extended Graphics character table H Hexadecimal (hex) dump, see Data dump I Interface, see Parallel interface or Se.
Index single sheet paper, l-20-21 2-3-7, 5-17-18 switching between continuous and single sheets, 2-16-22 switching between the cut sheet feeder and continuous paper, 5-15-17 Loading position, 2-14 adj.
Index Paper handling continuous paper, 2-8-15, 5-24-28 envelopes, 2-28-30, 5-10-12 labels, 2-25-27 single sheets, 2-3-7, 5-4-7 PAPER SELECT button, l-20, 2-4, 2-9, 3-6, 5-7, 5-16 Paper thickness lever.
Index Pull tractor, 5-21-30 installing, 5-21-24 loading continuous paper, 5-24-28 removing, 5-29-30 R READY light, 3-3 RESET, 3-8, 3-16 Roman, 3-5, 3-29 RS-232C-compatible serial interface, 5-31 S San.
Index U Underlining, 4-6, 9-31 Unidirectional printing, 3-12, 9-10 Unpacking, l-3 User-defined characters, 4-21-31, 9-38-39, GL-9 V Voltage, 1-3 power supply, 8-8 Index IN-7.
.
Control Codes by Functio n The following control codes are listed briefly for quick reference. For a more detailed explanation, see the page reference in Chapter 9. Variables are not included in this quick reference due to their complexity. For those codes that contain variables, such as ESC Q n for setting the right margin, see Chapter 9.
Print Enhancement/Word Processing.
.
EPSON OVERSEAS MARKETING LOCATIONS EPSON AMERICA, INC. EPSON DEUTSCHLAND GmbH 2780 Lomita Blvd., ZÜlpicher Straße 6, 4000 DÜsseldorf 11 Torrance, Calif. 90505, U.S.A. F.R. Germany Phone: (2 13) 539-9140 Phone: (0211) 56030 Telex: 18241 2 Telex: 858478 6 EPSON UK LTD.
USER’S GUIDE Printed in Japan 89.07-.4.
An important point after buying a device Epson SQ-2550 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Epson SQ-2550 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Epson SQ-2550 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Epson SQ-2550 you will learn all the available features of the product, as well as information on its operation. The information that you get Epson SQ-2550 will certainly help you make a decision on the purchase.
If you already are a holder of Epson SQ-2550, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Epson SQ-2550.
However, one of the most important roles played by the user manual is to help in solving problems with Epson SQ-2550. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Epson SQ-2550 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
