WeP LQ540DX User manual

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User Manual
LQ540DX

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CONTENTS
Page
INTRODUCTION 3
CHAPTER 1 Setting up the printer 4
CHAPTER 2 Paper Handling 10
CHAPTER 3 Using the printer 17
CHAPTER 4 Software Utilities 23
CHAPTER 5 Technical Specifications 24
CHAPTER 6 Command Summary 31
CHAPTER 7 Language Selection 36
CHAPTER 8 Service Information 38

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INTRODUCTION
Dear Customer,
Thank you for choosing the WeP LQ540DX, a 24 pin 80 columns, 300 cps
printer for your printing needs. This product has been manufactured to stringent
quality standards, to provide you many hours of trouble free printing.
Important: Your printer is covered under 1-year parts warranty. The warranty
service can be obtained from our vast and strategically placed WeP Printer
Service Centres.
New features in this printer
∗Plug and Play for Windows 9X, 2000
∗Plug and Play for Windows NT, ME, XP
∗Windows & DOS printer drivers
∗5 selectable LQ fonts
∗Auto load & Microfeed
∗HSD & unlimited page length settings
∗Buffer Clear from front panel
∗Top of form setting & saving.
∗Online Microfeed
∗Variable Page length settings
Wishing you many hours of trouble free printing.
On behalf of
WeP Peripherals Ltd.

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CHAPTER 1
SETTING UP THE PRINTER
•Unpacking the printer
•Finding a suitable location
•Assembling the printer
•Testing the printer
•Connecting the printer to your computer
UNPACKING THE PRINTER
Checking the parts
As you unpack the printer, check that you have all the parts shown below and
that none have been damaged during transportation
1. Printer
2. Ribbon cartridge
3. Printer cover
4. Paper rack (guide)
5. Driver software and User manual CD
6. PC-Printer Interface cable
After removing the parts, save the packing materials in case you need to
transport your printer.
Removing the protective materials
The printer is protected during shipping by locking the paper sprockets and the
printer cover are prevented from vibration by using paper tape. These
protective items must be removed before you turn the printer on.

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FINDING A SUITABLE LOCATION
When selecting a place to set up your printer, keep the following in mind.
∗Place the printer on a flat surface.
∗Place the printer close enough to the computer for the printer cable to reach
* Leave adequate room around the printer or easy operation, maintenance and
proper Ventilation.
∗Avoid locations that are subject to direct sunlight, excessive heat, moisture
and dust.
∗Use a grounded outlet. Do not use an adapter plug.
∗Place the printer where you can easily unplug the power cord.
∗Avoid outlets on the same circuit with large AC motors or other appliances
that might cause fluctuations in line voltage.
∗Keep the entire computer system away from potential causes of
electromagnetic interference such as loudspeakers or the base units of
cordless telephones.
∗Place the printer where the dust level is minimum. (Humidity in temperature
is maintained within the specified norms).
If you plan to use a printer stand, follow these guidelines:
∗Use a stand that supports at least twice the weight of the printer
∗Never use a stand that tilts the printer at an angle of more than 15 degrees
from horizontal. If you install a cut-sheet feeder, keep your printer absolutely
horizontal.
∗Make sure you provide enough clearance below the stand and between its
legs so that continuous paper feeds smoothly.
∗Position your printer's power cord and interface cable so that they do not
interfere with feeding. If possible, secure the cables to the printer stand
∗Align the stack of paper so that the paper has a straight path into the printer
Selection of Power conditioning equipment:
Depending on the power supply condition at your site, you may choose an
appropriate voltage stabilizer, to ensure that the input supply to your printer will
not cross the specified limits even during adverse power supply conditions.
a. Voltage range : 150 to 270 V ac.
b. Frequency :48 to 52 Hz
c. Earth to Neutral voltage : Less than 3 Vac.

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In case of your site condition not meeting the above limits, you must go for a
voltage stabilizing equipment, which will ensure regulated supply of voltage to
your printer.
You may install
i. Servo voltage stabilizer with high/low trip unit.
ii. CVT (Constant Voltage Transformer)/Line conditioner.
iii. UPS (Uninterrupted Power Supply).

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ASSEMBLING THE PRINTER
Installing the ribbon cartridge
1. Make sure the printer is turned off.
2. Turn the ribbon feed knob in the direction of the arrow to remove excess
slack in the ribbon.
3. Insert the ribbon between the ribbon mask and the print head and position
the cassette so that the ribbon feed shaft is inserted into the hole under the
ribbon feed knob.
4. Press on both sides of the cassette.

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5. Turn the ribbon feed knob of the cassette to tighten the ribbon. Manually
move the printhead back and forth across the carriage bar to make sure that
the ribbon is properly positioned in front of the printhead.
Attaching the paper guide
When you use single sheets, the paper guide functions to feed the paper
smoothly and efficiently into the printer. Attach the paper guide using the
following procedure.
1. Place the paper guide on the printer.
2. Raise the paper guide and push the projections on the lower part of the guide
into the holes on the right and left side frames.
See using single Sheets
NOTE: You can load continuous paper comfortably even with the paper guide
in place. Attach and close the printer cover unit.
TESTING THE PRINTER
Performing the self test
1. Ensure that the paper release lever is pushed to the TRACTOR position.
Load continuous paper by pressing Load/Eject switch on front panel. Turn
off the printer.
2. While holding down the LF/FF button, turn on the printer. The printer starts
printing the ASCII characters. The self-test continues until the paper runs
out or till you turn off the printer.
CONNECTING THE PRINTER TO THE COMPUTER
Connecting the printer to your computer. Your LQ540 printer has a Centronics
compatible parallel interface.
To connect the printer to the parallel port, use the parallel cable sent along with
the printer. The parallel interface is the printer's default setting.
Connect the parallel interface cable as follows:

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1. Turn off both your printer and computer. Then plug the connector of the
cable securely into the printer.
2. Squeeze the wire clips together until they lock in place on both sides of the
connector.
3. Plug the other end of the cable to a 25 pin parallel port in your PC.

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CHAPTER 2
PAPER HANDLING
* Using single sheets (Friction mode)
* Using continuous sheets (Tractor mode)
* Switching between continuous and single sheets
* Printing on special paper
USING SINGLE SHEETS (Cut sheet i.e., Friction mode)
Loading a sheet
1. Turn on the Printer
2. Hold the paper rack upright and insert the rack into the slant grooves on both
sides of the printer so the hook-shaped tabs face upward. Then place it in the
slant position.
3. Move the friction lever to the cut sheet position (toward the back of the
printer).
4. Slide the left and right paper guides to their extremes.
5. Position the cut sheet paper such that it leans against the paper rack.

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6. Slide and position the left and right paper guides to match the paper width.
7. The paper automatically advances to the TOF (Top of Form) position when
the paper is dropped along the paper rack (auto load function).
USING CONTINUOUS PAPER (Tractor mode)
Positioning your continuous paper supply
Note: Its important to keep your paper supply aligned with the tractor so that the
paper feeds smoothly into the printer.
Loading continuous paper
1. Remove the printer cover. Place the paper rack in its horizontal position.
Slide the rack toward the front of the printer to lock the printer cover and
allow for easy tear off of forms. Slide the paper rack toward the back of the
printer to open the cover

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2. Open the tractor cover.
3. Align the holes in the paper with the tractor paper feed pins.
4. If necessary, pull the tractor lock lever to release the tractor and adjust the
tractor positions for the width of the paper being used.
5. Close the tractor covers and adjust the position of the paper. Gently push the
two tractors outward to remove any slack in the paper.

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6. Move the friction lever to the tractor feed position (toward the front of the
printer).
7. Make sure the power is turned on.
8. Make sure the power is turned ON.
9. The paper advances to the TOF position automatically whenever the print
command is executed. This operation is valid when the paper us present in
the paper track.
10.If loading fails you have to load the paper through LOAD/EJECT button.
You can move the paper forward/backward in minute steps called Micro
Adjustment by using LF/FF and FONT button.
WARNING:
Never advance the paper using the platen knob except in the case of a paper
jam or other paper feed problem. Using the platen knob while the printer is
ON may damage the paper feeding mechanism and effect the loading
position.
NOTE:
1. If the paper is not loaded or skewed after loading, completely remove the
paper and reinsert it more firmly.
2. Now hold the online switch for more than 3 seconds, now ONLINE light
blinks indicating that the Top of Form adjustment is enabled. You may press
the LF/FF button to move the paper forward and FONT to move the paper
backward in minute steps. Press Online switch to confirm the settings. Once
you adjust this, the value (TOF) is stored till the next change.
3. To eject the paper, press the ON LINE button to make the printer off line and
then press LOAD/EJECT switch.
4. The left edge of a cut sheet paper should be always less than 5.5 cms from
the printer starting position to avoid the paper out indication.

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SWITCHING BETWEEN CONTINUOUS
AND SINGLE SHEETS
Switching to single sheets
1. Remove the printed document.
2. Press the ON LINE button to set the printer offline and press the
LOAD/EJECT button to advance the continuous paper backward
automatically to a standby position. The paper is still attached to the tractor,
but no longer in the paper path. The PAPER OUT light comes on when the
paper is completely out of the paper path.
3. Push the paper release lever back to the FRICTION (single sheet) position.
See the section on Using Single Sheets for loading single sheets.
Switching back to continuous paper
It is easy to switch back to printing with continuous paper. Before switching
back to continuous paper, ensure that the single sheet has been ejected and the
printer is offline.
1. Pull the paper release lever forward to the TRACTOR (continuous paper)
position.
2. Print command automatically loads the paper to the TOF, else use
LOAD/EJECT button.
PRINTING ON SPECIAL PAPER
The different varieties of papers are: multipart forms, labels and envelops.
Before printing on these papers, the print head gap needs to be adjusted through
bail lever.
To accommodate the various thickness of paper, the printer is equipped with
print head gap lever that can be set to one of the 7 positions. For normal use, it
should be set to position 3.
The following table gives you general guidelines for selecting the right paper
thickness lever position for the paper you are using:

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Paper Type Lever Position
Thin paper 1 or 2
Paper (single sheets or continuous) 3
Paper with standard ribbon installed
24 lb. paper (single sheets) 3
Paper Type Lever Position
Multi-part forms
2-sheets 4
3-sheets 5
Labels 4
Envelopes
Airmail 4 or 5
Plain 6
Bond (20 lb.) 6
Bond (24 lb.) 7
To get the proper printing, make sure that the print head gap (through bail lever)
position should be selected as shown above.
Always return the bail lever to position 3 when you go back to printing on
ordinary paper. Continuous printing with lever set at a position higher than 3
can shorten the life of the printhead.
WARNING:Printing past the edges of envelopes, multi-part forms, and
labels or thicker than normal paper can damage the print head.

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Multi-part forms
With the built-in tractor unit, your printer can print continuous multi-part forms
(four parts including the original). You can load the multi-part paper in the
same way as you load continuous paper. The only difference is that the paper
thickness lever is to be adjusted before loading.
NOTE:Multi-part forms should not be used without adjust the print head gap
position.
Labels
If you need to print labels, choose the type of label that is mounted on a
continuous backing sheet with sprocket holes for use with the tractor. Do not
use single sheet labels on a shiny backing sheet because they almost always slip
a little if fed by friction alone. Load the labels the same way as you load
continuous paper; just adjust the paper thickness lever before loading.
WARNING:
•Never feed labels backward through the printer. Labels can easily come
off the backing and jam the printer. Also, never use the sheet load lever to
eject labels or to feed labels backward to the standby position.
•Since labels are especially sensitive to temperature and humidity, always
use them under normal operating conditions.
Envelopes
You can feed envelopes individually using the single sheet-loading feature.
Adjust the paper thickness lever before loading.
CAUTION:
•Always keep the longer side of the envelope horizontal.
•Envelope printing is only available at normal operating conditions.
•If you use No.6 envelopes, make sure that the left edge guide is aligned with
the arrow on the paper guide.

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CHAPTER 3
USING THE PRINTER
•Operating the control panel
•Printer setting through the front panel
•Adjusting the TOF position
•Online micro-feed
•Buffer clear / Panel Reset
•Selecting type styles
•Data dump mode
•BI_D Vertical line adjustment
OPERATING THE CONTROL PANEL
LEDs
POWER ON (green)
ON - when the power switch is on and power is supplied to the printer.
PAPER OUT (red)
ON - when the paper is not present or when continuous paper is in the standby
position.
ONLINE / TOF (green)
ON - when the printer is on line and ready to receive data. Flashes when the
micro adjustment feature is enabled as soon as paper is loaded to set top of
form.
PITCH (Tricolour)
The LED colour shows the present pitch (Character Per Inch) selected of the
printing. Press the PITCH button to change the LED colour. The following table
shows the LED colour Vs PITCH setting.
LED Colour PITCH (CPI)
RED 10
GREEN 12
ORANGE 15
No Colour (One Beep) 17
No Colour (Two Beep) 20

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FONT (Tricolour)
The LED colour shows the present font (Character Per Inch) selected of the
printing. Press the FONT button to change the LED colour. The following table
shows the LED colour Vs FONT setting.
LED Colour FONT
RED DRAFT
GREEN ROMAN
ORANGE SCRIPT
No Colour (One Beep) PRESTIGE
No Colour (Two Beep) COURIER
No Colour (Three Beep) SANSERIEF
BUTTONS
ONLINE
This button controls the printer status. When the printer is on line mode, the
printer can receive data and prints. When the printer is off line mode, the printer
goes to stand alone mode.
FONT
Press this button to select a character font. 5 LQ fonts - Roman, Sanserif,
Courier, Script, Prestige and 1 Draft font are available. The status of the Font
LED shows which font has been selected (As explained LED's operation).
PITCH
Press this button to select character spacing. 5 types of Character per inch (Cpi)
10,12,15,17 and 20 are available. The status of the Pitch LED shows the
selected pitch (As explained LED’s operation).

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PRINTER SETTING THROUGH THE FRONT PANEL
Keep ONLINE pressed, switch ON the power. Present Settings are printed as
follows.
Sl.No. Setting
1. High speed draft Disabled Enabled
2. Input buffer 64KB 40KB
3. Print direction BI-D UNI-D
4. Character table Italics Graphics
Optional Language
5. Skip-over-perf OFF 1 inch
6. Tear off type Short Auto
7. Tear off Enabled Disabled
8. DD forms printing Quality Speed
9. ROLL paper OFF ON
10.Auto tear off time 3 sec 1 sec
11.Auto Line Feed Depends on I/F Enabled
12.Page Length Available Page Lengths
3, 3.67, 4, 5.5, 6, 7, 8, 8.5, 11, 11.66, 12, 14, 17
Note: Bold indicates printer default setting.
Printer Setting Format
FONT LED PITCH LED SETTINGS
RED - Print Direction
GREEN - Character Table
ORANGE - Skip Over Perf
- RED Tear Off type
- GREEN Tear Off Time
- ORANGE Auto Line Feed
RED RED Page Length
RED GREEN High speed draft
RED ORANGE Input buffer
GREEN RED DD forms printing
GREEN GREEN Tear off
GREEN ORANGE ROLL PAPER
Press FONT to go to next setting
Press LF_FF to go to previous setting
Press ONLINE to change setting
Press PITCH to save and proceeding to next setting

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•For page length setting, select FONT LED (RED) & PITCH LED (RED).
Press LF_FF to change the current setting. To execute the change press
ONLINE. Printer prints out the changed setting.
•To skip remaining printer settings at any time through the process, just
power off the printer.
You may also use Setup Utility for the above Printer Settings.
ADJUSTING THE TOF POSITION
The loading position is the position of the paper when the printer has
automatically loaded it. The loading position is important because it determines
where the printer begins to print on each page. If the printing is too high or too
low on the page, change the loading position using the micro-adjustment
feature.
The micro-adjustment feature moves the paper 1/72 inch at a time to make fine
adjustments to the loading position. Once you have used micro-adjustment to
change the loading position of single sheet or continuous paper, the printer
saves this position till the next change.
Using micro-adjustment
The following steps show how to adjust the loading position:
1. Turn on the printer and the paper gets loaded.
2. Press the ONLINE button to set the printer on line. The ONLINE LED stars
flashing.
3. Press the LF/FF button to feed the paper forward and the FONT button to
feed the paper backward.
Note:When the paper reaches the factory-set loading position, the printer
beeps and micro-adjustment feed pauses for a moment before continuing.
You can use this factory setting as a reference point when adjusting the
printer's loading position.
When the paper reaches either minimum or maximum top margin, the printer
beeps and the paper stops moving.
4. Once you have adjusted the loading position for the paper, the printer
remembers this new loading position, and loads paper at this new position,
till the next change