Avery Weigh-Tronix WP-234 User manual
WP-234 Printer
User’s Manual
11/29/99 234USER.P65 PN 29623-0014e1 Printed in USA
Risk of electrical shock. Do not remove cover. No user service-
able parts inside. Refer servicing to qualified service personnel.
Weigh-Tronix reserves the right to change
specifications at any time.
CAUTION
EUROPEAN COUNTRIES
WARNING
This is a Class A product. In a domestic environment this product
may cause radio interference in which the user may be required to
take adequate measures.
Table of Contents
Introduction.............................................................................. 1
Installation ............................................................................... 1
Installing the Paper ................................................... 1
To Remove the Paper Roll........................................ 4
Operation................................................................................. 5
Connecting and Powering Up Your Printer ............... 5
Maintenance ............................................................................ 5
Changing the Printer Ribbon..................................... 6
Inserting a Ribbon with Paper in the Printer ............. 7
Printer Test and Setup............................................................. 8
Printer Test................................................................ 8
Accessing the Setup Menu ....................................... 9
CONFIGURE . . ........................................................ 9
CUSTOM. . . ............................................................ 12
SETCLOCK. . . ........................................................ 16
RESET SEQ#.......................................................... 17
Communication ..................................................................... 18
RS-232 Serial Version ............................................ 18
20 mA Current Loop Version .................................. 19
Control Codes ......................................................... 20
Specifications
Available BAUD rates
: 300, 600, 1200, 2400, 4800,
9600, 19200
Voltage levels:
RS-232C: -9 Volts to + 9 Volts
20mA current loop
Character format:
ASCII character set—10 bits per character
required,
7 or 8 of which are data bits.
Parity selection is even or odd for 7 data bits.
Busy signal - Clear to Send (CTS, XON-XOFF)
1.5K standard
Impact dot matrix
5 x 5, 5 x 7, 5 x 8 dot matrix
24 column: 12.8 characters/inch
32 column: 17 characters/inch
40 column: 21 characters/inch
7.4 lines per inch
130 lines per minute for 24 column
110 lines per minute for 32 and 40 column
Table top: 2.25"W x 2.75"D; 0.44" I.D.
Panel mount: 2.25"W x 1.25"D
1.5 Watts (idle), 15 Watts maximum while printing
9VAC (120 VAC stepdown converter incl.)
Multi-national converters optional
Optional 9-12 VDC
140mA idle, 1 amp with 100% printing, 5.5 amp peak
with 100% printing
4.6"W x 5.0"L x 2.2"H
5°C - 40°C,41°F - 104°F
Interface-Serial
Character Buffering
Print Method
Character Matrix
Character Spacing
Line Feed Spacing
Print Speed
Paper
Power
AC Voltage
DC Voltage
External Dimensions
Operating Temp.
1,500,000 lines mean character before failure.
Black- 200,000 characters
Purple-250,000 characters
Large roll - 12,500 lines
Small roll - 3,000 lines
Ribbon life
Paper
Print Head Life
1
Introduction
The Model WP-234 dot matrix printer has one of
these electrical interfaces:
RS-232 Serial
20 mA Current Loop
This manual is split into the following main sections:
• Introduction
• Installation
• Operation
• Maintenance
• Printer Test and Setup
• Communication
Installation
Please follow the precautions listed below when
setting up your printer. They are designed to help you
keep your printer working at its best.
* Plug your power supply into an appropriate
grounded outlet.
* Place your printer on a flat hard surface, like a
tabletop.
* Keep your printer out of direct sunlight.
1. Remove the printer cover by pressing on the
groove patterns to pop the front edge up. Lift off
the cover.
2. Press the rocker switch to the left. The light will go
off.
Installing the
Paper
2
3. Unroll several inches of the paper.
4. Cut a straight edge on the paper roll if it is jagged.
This will facilitate the entry of the paper into the
printer.
5. Slide the paper through the slot connecting the
paper compartment and the printer compartment.
You can slide it in about one-quarter inch before it
stops.
6. While holding the paper in place, press the rocker
switch to the Paper Feed position. The printer will
activate, and a rubber roller will pull the paper into
the printer compartment. Hold the switch in the
Paper Feed position until the paper emerges from
the top of the printer mechanism.
7. When an inch of paper has emerged from the top
of the printer, release the Paper Feed button
8. Now pull the paper through the printer, until
several inches are exposed.
3
9. Slide the paper through the slot in the printer
cover.
10. Push the back of the printer cover down and into
place.
11. Press the front of the printer cover down to lock in
place.
4
12. Put the paper spindle into the paper roll as shown
below, and place the roll with the spindle onto the
snaps near the back of the printer. Turn the paper
roll to take up any slack in the paper feeding to
the printer. Make sure the roll of paper turns
freely. If it does not turn freely, the paper will jam
and will possibly damage the printer mechanism.
1. Advance the paper about one inch beyond the
paper cutter by using the Paper Feed switch.
2. Lift the paper roll away from the printer housing
and cut the paper feeding to the printer with
scissors. Try to make the cut as square as
possible to help the next time you reload the
paper.
3. Pull the remaining paper through the printer
mechanism. Be sure to pull the paper from the
top (paper cutter side).
WARNING! Pulling the paper out of the back of the
printer will damage the print mechanism.
To Remove the
Paper Roll
5
Operation
1. Attach the appropriate cable between the printer
and your instrument. The connector on the printer
side is “keyed” so that you cannot plug the cable
in the wrong way. This means that the pins should
be positioned so that a slight pressure will seat
the cable properly. Do not force the pins in. Doing
so could damage the cable.
2. Plug the power cord into the back of the printer.
Plug the transformer into an appropriate AC
outlet. The unit will power up automatically and
print
Ready. . .
. This means the printer is ready to
print.
The Paper Feed switch on the printer is a rocker type
switch. Push the left side of the rocker switch to
toggle the printer on and offline. Push the right side of
the switch to advance the paper.
Your printer is now ready for printing.
The printer stores characters for printing until one of
two things happens:
1. The line buffer is filled.
2. It receives a line feed (hexadecimal 0A) or a
carriage return (hexadecimal 0D) code.
When (1) or (2) occurs, the printer prints out the
contents of its line buffer. If the buffer is empty when
the carriage return is received, the printer simply
advances the paper one line, leaving a blank line in
the printout.
Maintenance
When printing becomes faint or difficult to see,
replace the ribbon in your printer with an Epson ERC-
09 cartridge ribbon.
EJECT
PUSH
For DC modified units
supplied with cable,
connect positive
voltage to striped
wire.
Connecting and
Powering Up
Your Printer
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