Epson GQ-3500 Owner's Manual

EPSON

Notice to Consumers

The standard GQ-3500 with a #5691 card installed has a base memory configuration of 512 kBytes of RAM. For most application software this amount of memory is sufficient.

If you are printing large amounts of graphic data, using a number of downloaded fonts, or mixing graphics and text on a page, it is possible you will have pages eject which are not complete. No error message will be generated and the remainder of the page will be printed on the following sheet of paper. Nothing is wrong with your printer. This occurs when the page gets too complex and there is insufficient memory.

There are two ways to handle the situation. The easiest and quickest solution is to switch to a lower graphics resolution. By reducing the resolution to either 150, 100, or 75 DPI, depending upon the complexity of the page, the printer will then be able to print full page graphics. An alternative solution, if you want the 300 DPI quality, is to purchase one of the EPSON Memory upgrade boards for the GQ-3500. Contact your dealer for pricing and availability.

Printed in Japan

87.05-6

Y59099201001

EPSON

GQ-3500

User’s Manual

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. It has been type tested and found to comply with the limits for a Class B computing device in accordance with the specifications in Subpart J of part 15 of FCC Rules, which are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient the receiving antenna

-Relocate the printer with respect to the receiver

-Plug the printer into a different outlet so that the printer and receiver are on different branch circuits.

If necessary, the user should consult the dealer or an experienced radio/ television

technician for additional suggestions. The user may find the following booklet prepared

by the Federal Communications Commission helpful

“Television Interference Handbook.”

This booklet is available from the U.S. Government Printing Office, Washington, DC

20402. Stock No.

The connection of a non-shielded printer interface cable to this printer will invalidate

the FCC Certification of this device and may cause interference levels which exceed the limits established by the FCC for this equipment. If this equipment has more than one interface connector do not leave cables connected to unused interfaces.

004-0334045~7.

WARNING

system, or transmitted, in any form or by any means, mechanical, photocopying recording

or otherwise, without the prior written permission of Seiko Epson Corporation. No patent

liability is assumed with respect to the use of the information contained herein. While

every precaution has been taken in the preparation of this book, Seiko Epson Corporation

assumes no responsibility for errors or omissions. Neither is any liability assumed for

damages resulting from the use of the information contained herein.

Centronics is a registered trademark of Centronics Data Computer Corporation.

Epson is a registered trademark of Seiko Epson Corporation.

IBM is a registered trademark of International Business Machines Corporation.

MS is a trademark of Microsoft Corporation.

Xerox is a registered trademark of Xerox Corporation.

Nagano, Japan

SAFETY INFORMATION

Laser Safety

This printer is certified as a Class 1 laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. This means that the printer does not produce hazardous laser radiation.

Since radiation emitted inside the printer is completely confined within protective housings and external covers, the laser beam cannot escape from the machine during any phase of user operation.

CDRH Regulations

The Center for Devices and Radiological Health (CDRH) of the US. Food and Drug Administration implemented regulations for laser products on August 2,1976. These regulations apply to laser products manufactured from August 1,1976. Compliance is mandatory for products marketed in the United States. compliance with the CDRH regulations and must be attached to laser products marketed in the United States.

The label shown below indicates

CAUTION:

Use of controls, adjustments or performance of procedures other than those specified in the manual may result in hazardous radiation exposure.

..a

ill

Introduction

Chapter 1

Setting Up

Unpacking the Printer

1-1

Finding a Place for the Printer

1-1

Installing the Drum Cartridge

1-2

Installing the Toner Cartridge

1-6

Installing the Paper Tray

1-9

Loading Paper

1-9

Turning On the Printer

1-12

Operating the Control Panel

1-12 1-14

The Indicator Lights Running a Self Test

1-15

Chapter 2

Starting Printing

2-1

Removing the Interface 2-3 Setting Switches 2-7

Connecting the Printer to a Computer 2-8 Using the GQ-3500 with Application Programs

Chapter

SelecType

3-1 3-3 SelecType Functions and Options 3-6 SelecType with DIP Switches or Software Commands 3-6 Using Optional IC Cards

Contents

Entering SelecType Mode

Chapter 4

Paper

4-1

Paper Delivery Choices 4-2 Types of Paper 4-3 Considerations in Selecting Paper 4-3 Sizes of Paper

Choosing a Standard Paper Size

4-4

Loading the Paper Tray

4-4 4-4 Hand-Feeding Paper

Clearing Paper Jams

4-5

Chapter 5

Maintenance and Status Messages

5-1 Status Messages

IC Card Status Messages

5-3

Paper Status Messages

5-4 5-7 User Maintenance

5-15 Service Maintenance

Corrective or Preventive Maintenance

5-16 5-16 Transfer Charger Wire

Chapter 6

Software Control of Printer Features

6-1

Using BASIC 6-2 Orientation 6-3 Font Selection 6-5 Character Attributes 6-7 Ruled Lines 6-9 Graphics Primitives

Appendix A

Command Summary

A-2 Comman

Page Printer Commands

A-5 A-37 LQ Emulation Commands A-55 Line Printer Commands

ds in Numerical Order

Appendix B

Directory of Status Messages

Appendix C

DIP Switches

Contents

Appendix D

Character Tables

Appendix E

Specifications

E-1 Printing

Paper and Paper Delivery

E-2 E-2 Mechanical E-3 Electrical E-3 Controller Hardware E-4 Environment E-4 Transportation

Appendix F

Parallel Interface

DIP Switch 4

F-1

Parallel Interface Jumpers

F-2 F-3 Pin Assignments

GQ-3500 Options

Contents

vii

Introduction

The Epson GQ-3500 Laser Printer combines a semiconductor laser with the electrophotographic technology used in office copiers to give you printing that is high quality, quiet, and fast.

Before you set up your printer, take a few minutes to look at the illustrations in this introduction. The captions name and briefly describe the basic parts of the outside of the printer. you in following the setup steps in Chapter 1.

The first illustration shows the front and the right side of the printer with the major parts identified.

This will help

7.IC card slots

tray

3. Control pknel

4. Paper set lever

Paper path selector. Selects

either faceup or facedown delivery

of printed pages

Latch.

Used to open the printer

Control panel. Has

buttons for controlling the printer and

indicators for displaying its status

Paper set lever. Used for loading paper

Manual feed paper guide.

Guides paper for manual feed

Introduction/GQ-3500

Manual feed paper guide

Intro-1

Paper tray. Holds paper for automatic feed printing IC card slots. Sockets for optional IC cards, which add additional

7. fonts and operating modes to the GQ-3500

The illustration below shows the back and left side of the

GQ-3500.

6. Face-down tray

1. Interface/

board

In&face

cable

Interface board. A parallel interface is supplied with the printer;

3. AC poher

cord

4. Power switch

a serial interface is available as an option

Interface cable. Used for

2. AC power cord. Supplies power to the printer

3. Power switch. The 1 side of this switch turns the printer on;

connecting

the printer to a computer

the 0 side turns it off Face-up output tray. Receives printed pages when face-up

5. delivery is selected

Face-down tray. The printer’s top cover also serves as its print exit

tray for face-down delivery

Intro-2

Introduction/GQ-3500

Laser Printer Precautions

because the GQ-3500 is a laser printer using electrophotographic technology, certain precautions are necessary to ensure safe and efficient operation. The following list of precautions applies whenever you open the printer case. printers, be sure to familiarize yourself with these precautions.

Be careful not to touch the fusing unit, which is marked by a

CAUTION: HOT SURFACE

2. Protect the light-sensitive drum from exposure to light. The drum

should not be exposed to any light stronger than room light. Furthermore, the drum should not be exposed to room light for longer than five minutes. If you must expose the drum for more than five minutes, either by taking the drum out of the printer or by leaving the printer case open, cover the drum area with a soft cloth or paper.

Even if you are familiar with other types of

label.

3. Avoid pressing on the top of the toner cartridge.

on the cartridge may cause toner powder to spill into the printer.

Pressing directly

If there is a spill, the toner must be removed by a small vacuum cleaner.

4. Be sure to raise the cover completely when you open the printer. If the cover is not fully raised when you are servicing the printer (such as clearing a paper

jam),

damage could result from printer

parts colliding with the cover or the delicate lens shield contained

in the cover.

Introduction/GQ-3500

Intro-3

Chapter 1

Setting Up

To set up your GQ3500 printer simply follow the steps in this

chapter.

1 Unpacking the Printer

Carefully unpack the carton. At the top of the carton is a box containing several printer components. Beneath that box is the printer itself, which is protected by white foam packing material.

After you take out the inner box where you found this manual, do not open the smaller boxes that are inside of it. Instead, carefully remove the printer from the large carton. See that neither the printer nor any of the smaller boxes have been damaged during transportation.

Remember Do not open any of the small boxes and do not plug in or turn on the printer yet.

When you are finished unpacking, put the packaging materials including the desiccant bag in the carton and keep them in case you need

to transport the printer. Full details on transporting the printer are in

Appendix E.

2 Finding a Place for the Printer

Now you must find a place for the printer. It must be close enough

to the computer for the cable to reach. Proper operation of the printer also requires a certain amount of space.

If you’re going to put your printer near a wall or large piece of furniture, such as a filing cabinet, remember to leave enough space for operation and maintenance.

You need at least 40 inches in front of the printer (the side with the control panel), 15 inches on the right, 4 inches on the left (16 inches if you use the faceup output tray), and 12 inches behind.

Setting Up

Also keep the following tips in mind:

Place the printer on a flat, stable surface.

Choose a place that is clean and free from excessive heat (including direct sunlight), moisture, and dust.

Use a grounded outlet - one that has three holes to match the power plug on the printer.

Avoid sockets on the same circuits with large motors or other

Don’t use an adapter plug.

appliances that might disturb the power supply.

Keep your entire computer system away from potential sources of interference such as the base units of cordless telephones.

When you have found a place for the printer, place the function table sticker on the top of the printer in the location indicated in Figure l-l.

Figure 1-1. Function table location

Function

3 Installing the Drum Cartridge

Before you use the printer, you must install a few important parts that are packaged separately for safe transportation. The first is the drum cartridge.

1-2

Setting Up

WARNING Do not expose the drum cartridge to any light brighter than normal room light, and do not expose it to room light for more than five minutes. Leave it boxed until you have read over the next few pages and know how to install it. Also, do not touch the surface of the drum or let it rest on any hard surface that might scratch it.

Open the drum cartridge box and pull out the plastic container, as

shown in Figure 1-2.

(The plastic bag inside the box is for eventual

disposal of the cartridge when it has to be replaced.)

See that the side of the plastic container marked UP is up, and

carefully open the plastic container as shown in Figure 1-3.

Figure 1-3. Opening the container

Setting Up

1-3

Because the top of the plastic container does not stay open by itself, put a small object on the top to hold it open, as indicated in Figure 1-4. Then remove the orange holder.

It is needed only for transportation.

Figure 1-4. The open container

Place

Now you are ready to install the drum cartridge.

Lift up on the latch on the front of the printer and open the printer.

Follow these steps:

(See Figure 1-5.)

Figure 1-5. Opening the printer

1-4

Setting Up

Hold the drum cartridge by the two green tabs and lift it out of the plastic container. Then be sure that the drum is toward the right side of the printer, and lower the cartridge into the opening to the left of the block of white foam packing material (as shown in Figure 1-6).

Figure 1-6. Installing the drum cartridge

Lower the cartridge into the printer until it fits into place. Then press the green tabs back to the horizontal position.

Press the reset lever at the left rear of the inside of the printer, as shown in Figure 1-7. This is important because the reset lever resets the counter that keeps track of the usage of the drum cartridge.

Setting Up

1-5

Figure 1-7. Pressing the reset lever

set lever

4 Installing the Toner Cartridge

The toner cartridge must be installed in the developing unit (which is already in the printer). Follow these steps:

Remove the block of white packing material from the developing

unit (to the right of the drum cartridge).

Next take the toner cartridge out of its box. Remove the take-up

handle and the tape from the top of the cartridge.

Shake the toner cartridge back and forth several times

horizontally, as shown in Figure 1-8. This distributes the toner

evenly in the cartridge.

Figure

1-8. Distributing

1-6

the toner

Setting Up

Caution Do not press on the top of the toner cartridge because toner may spill into the printer. Instead press on the edge of the cartridge as shown. If toner spills into the printer, remove it with a small vacuum cleaner.

On the bottom right side of the toner cartridge are two pins, one at

4. each end. (See Figure 1-8.) Hold the toner cartridge vertically with the pins at the bottom and lower the pins into the notches in the developing unit. Then tilt the cartridge into place, as shown in Figure 1-9.

Figure 1-9. Installing the toner cartridge

Now hold the green toner cartridge lock lever down while you

5. lower the left side of the toner cartridge. Then release the lock lever to lock the cartridge into place as shown in Figure 1-10.

Figure 1-10. Locking the cartridge info place

Setting Up

Attach the seal take-up handle to the small plastic shaft at the front of the toner cartridge. (See Figure 1-11.) Move the lever back and forth (in the direction of the arrows in Figure 1-11) until it won’t move any further with moderate pressure. markings on the seal when you reach the end of it.) This step, which may take up to 40 back and forth movements of the handle, peels back the toner seal and releases the toner into the developer.

Figure 1-11. Removing the toner seal

(You will see red

Caution Once the toner cartridge has been installed, do not remove it until you are prompted to do so by the TONER OUT light on the control panel. Otherwise toner will spill into the printer.

Remove and discard the take-up lever.

Tap each of the corners of the toner cartridge to prevent toner from remaining in the comers of the cartridge.

Make sure that the developer unit is properly locked into place by pressing on the two places marked by blue dots. They are to the right of the toner cartridge.

Now that you have installed the internal components, close the

printer and gently press down on the top of the case until the latch

clicks shut.

1-8

Setting Up

5 Installing the Paper Tray

before you install the paper tray, remove all of the packing material, including any white foam and pieces of tape. Then follow these steps:

Push down the paper set lever until it clicks into place. (See Figure 1-12 for the location of the paper set lever.)

Hold the paper tray as shown in Figure 1-12. Notice that it is at an angle. Slide the plastic runners on either side of the paper tray into the black grooves inside the printer.

installed, the tray clicks into place.

Figure 1-22. Installing the paper fray

When properly

6 Loading Paper

Chapter 4 contains complete information about choosing paper

types and sizes. For now, simply use up to 150 sheets of ordinary

&l/2” x 11” white paper. (Xerox® 4024 copier paper is preferred.)

See that the paper set lever is down, and open the paper guides all

the way. (See Figure 1-13.)

Setting Up

Figure 1-13.

Paper set lever and guides

Paper guides

Insert a stack of paper into the tray, making sure that the top of

&Maper

set lever

the stack does not cover the red mark on the inside of the paper tray.

Push the paper in gently as far as it will go, as shown in Figure 1-14. (The paper will feed more easily if you fan it before you load it.)

Figure 1-14.

Loading paper

Slide the paper guides together until they are both against the

edges of the stack of paper. (See Figure 1-15.) Then raise the paper set lever to the up position.

Setting Up

Figure 1-15.

Adjusting

the paper guides

4. Set the paper exit path with the paper path selector at the bottom left of the front of the printer. delivery by turning the dial down as shown in Figure 1-16.

Set the path for facedown

With

this setting the paper will exit at the top of the printer.

Figure 1-16. Setting paper path

When ejected facedown, the pages are stacked in the order in

which they are printed. the use of the face-up output tray.

The other setting for paper delivery requires

because you do not need to use it now,

the installation and use of that tray is explained in Chapter 4.

Setting Up

1-11

7 Turning On the Printer

before attaching the power cord, make sure the power switch on the left side of the printer (see Figure 1-17) is turned off. (It is off

when the 0 side of the switch is pushed in.)

Attach the power cord at the back of the printer as shown in Figure 1-17. Then plug the power cord into a properly grounded outlet.

Figure 1-17. Attaching

Turn the power ON with the power switch. The

the

power cord

STATUS

indicator on the control panel displays the warm-up symbol, which is two horizontal lines (-

-).

The warm-up symbol flashes to show that the printer is warming up. After about 45 seconds, the warm-up symbol stops flashing, meaning that the printer is ready to operate. The

POWER, READY,

and

ON LINE

indicators on the

control panel should also be on.

8 Operating the Control Panel

The GQ-3500 control panel (shown on the next page in Figure 1-18)

has five buttons, nine indicator lights, and the LED (Light-Emitting Diode) that can display two numbers or letters. The bottom half of the panel lists some of the common status messages and their meanings.

1-12

STATUS

indicator, an

Setting Up

Figure 1-18. The control panel

From this panel you can control almost all the printer functions.

ON LINE

The

LINE button switches the printer between the on line and off line states. In the on line state, the ON LINE light is on. This means that the printer can receive and print data (if the POWER and READY lights are also on).

In the off line state, the ON LINE light is not on, nor is the READY

light on.

In this state, you can enter the SelecType mode, as explained

in Chapter 3.

FUNCTION l/ERROR CLEAR

This button has several uses:

Clearing the printer to correct an error condition

Continuing printing after clearing a paper jam.

Entering the test mode and changing test patterns.

Selecting functions in the SelecType mode.

Setting Up

1-13

FUNCTION 2/PAPER FEED

This button also has several uses:

Printing out any data received and ejecting the paper.

Feeding the paper during a printer self test.

Selecting details for each function in the SelecType mode.

Note Because they have so many functions, these two buttons have two names each. This manual uses whichever name is appropriate to the operation being described. For example, the button on the left is called the

ERROR CLEAR

called the

FUNCTION 1

button when error messages are discussed, but it is

button when selecting functions in SelecType is

described.

SHIFT

When

the printer is off line, this button selects or cancels the SelecType mode, described in Chapter 3. This button also stops the printing of multiple copies when the printer is off line.

The Indicator Lights

In addition to the lights above the

ON LINE

and

OPTION TRAY

buttons, the printer has seven other indicator lights.

POWER READY DATA

Indicates that the printer is turned on and receiving power.

Lights when the printer is ready to receive data.

Flashes rapidly when data is being received from the host computer. When no data is being received, it flashes slowly. When the printer buffer is empty, the light is off.

PAPER OUT

TONER OUT

Rashes when the paper tray is out of paper.

Flashes when the toner drops below a certain level.

This is an indication that you need to change the toner cartridge.

USER MAINTENANCE

or the collector unit needs to be replaced.

This light indicates that the drum cartridge

The

STATUS

display code

tells you which one to replace. (See Chapter 5 for a full explanation.)

1-14

Setting Up

SERVICE REQUIRED

are detected. The malfunction. See Chapter 5 for full information on

REQUIRED

messages.

- Flashes when certain printer malfunctions

STATUS

display shows the code for the specific

SERVICE

STATUS

display

The STATUS

display shows many different messages. Some common status message codes are shown on the control panel for easy reference.

Jl -J2

Ul l/2

JO - PU

CO - CH LO-L1

PAPER JAM REPLACE COLLECTOR UNIT REPLACE DRUM CARTRIDGE FEED ERROR - PAPER SIZE ERROR IC CARD ERROR DATA ERROR

Each of these messages and what you need to do about it is

discussed in this manual, and all of them are listed in Appendix B.

9 Running a Self Test

The GQ-3500 has two built-in self tests so that you can be sure the

printer is working properly.

Before running a self test, see that the paper is loaded correctly

and the power is OFF.

Hold down the

FUNCTION 1

button while you turn the power on. Release the button when the warm-up symbol (- -) begins to flash in the

STATUS

display. The warm-up symbol flashes until the

printer is ready and then the message OC appears. Press the

FUNCTION 1

Setting Up

button once again.

1-15

Press the FUNCTION

will flash until the page is ejected from the printer. You will see a sample of the printer’s characters like this one:

2 button

to start the self test. The 1C message

!"#$%&I()*+,-./0123456789:;<=>?@ABCDEFGH

!"#$%&I()*+,-./0123456789:;(=>?@ABCDEFGHI

"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJ

#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJK

$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKL %&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLM &I()*+,-./0123456789:;

lo*+,-. o*+,-.

>*+,-.

Press the FUNCTION

which is indicated by

Press

the FUNCTION

will flash until the page is elected from the printer. The test shows a pattern of lines like this:

/0123456789:;

/0123456789:

1 button to change to the other self test,

OC on the STATUS

2 button to start the second self test. The OC

<=>?@ABCDEFGHIJKLMN

<=>?@ABCDEFGHIJKLMNO

;<=>?@ABCDEFGHIJKLMNOP

;<=>?@ABCDEFGHIJKLMNOPQ

display.

Once you have seen that your printer is printing normally, turn the printer off.

The GQ-3500 comes equipped with a

parallel interface. If your computer can communicate through a

parallel interface, all you need is the proper shielded cable. If your computer requires a serial interface, see your dealer for serial interface available for this printer. The serial interface contains its own instructions. If you don’t know what kind of interface your computer requires, consult your dealer or your computer manual.

1-16

Centronics®

compatible

the

optional

Setting Up

Chapter 2

Starting Printing

Now that you have set up your GQ-3500 and tested it to make sure

it is working properly, you need to do three things before you start

printing:

Set switches that change some of the printer’s settings to suit your

individual

Connect the printer to your computer

Set up your application programs for the GQ-3500.

It is best to read this entire chapter before you begin changing

switch settings.

Also, whether you are using a parallel or a serial interface, the

DIP switches described in this chapter are the same.

Removing the Interface

Before you change any switch settings, you must remove the interface from the printer. This doesn’t require any tools. Just follow these steps:

needs

Locate the interface on the back of the printer.

shown in Figure 2-1.

Figure 2-1. Interface location

Interface board

Starting Printing

Its position is

2-1

2. Make sure that the power to the printer is turned off and that no cable is connected from the printer to the computer.

3. Loosen the two knobs and pull the interface straight out as shown in Figure 2-2.

Figure 2-2. Removing the interface

Knob

4. Locate the switches on the interface board. The two groups of DIP switches (see Figure 2-3) are labeled SW 1 and SW 2. Each of the individual switches also has a small number, from 1 to 8. The individual switches are referred to by group and number: thus, the switch with the small number 4 in the group labeled SW 1 is called switch 1-4.

Figure 2-3. Dip switch location

SW-2

2-2

Starting Printing

Setting the DIP switches

Use the tip of a ballpoint pen or another small pointed object to

turn the switches ON or OFF.

Setting Switches

This section first describes the main choices you have and then it

tells you how to reset the appropriate switches.

Choosing an operating mode

The GQ-3500 has four operating modes:

Page printer-gives

such features as forms overlays, double-high and triple-high printing, and graphics primitives. (Chapter 6 contains full details.)

Epson LQ

requires you to use an Epson LQ printer.

Line printer-

allows 66 lines with 136 columns on standard letter size paper, using a special character set with 13 characters per inch (cpi). The page printer mode, however, can also print this material. See Chapter 3 for instructions on using SelecType to put more characters on a page. To select an operating mode, set switches 1-1 and 1-2 as shown in Table 2-1.

IC card-allows the use of optional IC cards that provide other operating modes. instructions with it.

and see whether the GQ-3500 prints properly with your application programs.

Table 2-1.

emulation - for use with an application program that

If you are not sure which mode to use, use the page printer mode

To select an operating mode, set switches 1-1 and 1-2 as shown in

access to all the printer’s capabilities, including

can be used for printing simple text or spreadsheets.

If you buy an optional IC card, you receive full

Starting Printing

2-3

Table 2-1.

Settings for operating mode

1-1

1-2

Automatic reprint when paper jams

When a paper jam occurs, the page being printed is sometimes

spoiled. If switch 1-3 is ON, the printer automatically reprints pages that jam. Setting this switch ON may slow

If this switch is OFF, the jammed page is not reprinted.

the

printing speed because

the

printer’s memory buffer retains the data describing the page being printed until it has finished printing it.

Non-printable codes

Switch 1-4

receives but does not recognize as a printing character.

controls

what

the printer does with codes that it

If this switch is ON, a space character is substituted for the unknown code to leave space in the line for you to put the character in manually.

If this

switch is OFF, the unrecognized code is just ignored and no space is left.

Automatic line feed

When switch 1-5 is ON,

carriage return; when it is OFF, it does not.

the

printer adds a line feed to each

If your printing has an extra space between lines, turn this switch OFF. If your printed lines are on top of each other, turn this switch ON.

Automatic carriage return

When switch 1-6 is ON the printer starts a new line (by inserting a

carriage return

right margin. If this

line

are discarded.

and

line

feed)

it receives a line

switch

is OFF, any characters that don’t fit on a

that

extends past the

Automatic form feed

When switch 1-7 is ON, the printer starts a new page if it receives

lines than

will fit on the current page.

If this switch is OFF, the

printer will not start a new page until it receives a form feed code.

2-4

Starting Printing

+ 135 hidden pages

Epson GQ-3500 Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Introduction

The Indicator Lights

Removing the Interface

Setting Switches