Loadrite LP950 User manual

LP950
Data Printer
MANUAL
OPERATORS

Data Printer
Model LP950
Document No. MAN-LP950-03
Issue Date: June 2004
Distributed Worldwide by:
)8 Walls Road, PO Box 12-607, Penrose, Auckland, New Zealand
[phone]
℡[phone]
|[email protected]
www.loadritescales.com
Designed & Manufactured by:
www.actronic.com
This manual is copyrighted with all rights reserved. Under copyright laws, this manual may not be
copied in whole or in part or reproduced in any other media without the express written permission
of Actronic Ltd. Permitted copies must carry the same proprietary and copyright notices as were
affixed to the original. Under the law, copying includes translation into another language.
Please note that while every effort has been made to ensure that the data given in this document is
accurate, the information, figures, illustrations, tables, specifications, and schematics contained
herein are subject to change without notice.
Actronic Ltd assumes no liability in connection with the use of any Loadrite branded product.
© 2004 ACTRONIC LIMITED

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Contents
1 General Description ...................................................................................................................1
2 Installation...................................................................................................................................2
Printer ............................................................................................................................................... 2
Electrical Connection .................................................................................................................... 3
Use with Data Capture System................................................................................................... 3
3 Printer Controls and Indicators.................................................................................................4
Function Of Buttons ...................................................................................................................... 4
Function Of Indicators.................................................................................................................. 4
Paper Roll Replacement ............................................................................................................... 5
Ribbon Casette Replacement......................................................................................................6
Baud Rate ........................................................................................................................................ 7
4 Specifications ..............................................................................................................................8

LP950 OPERATORS MANUAL
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1 General Description
The LOADRITE LP950 printer is an accessory to the Loadrite weighing
system and is used to provide a permanent record of the weighing
operations as they are performed.
A detailed description of the 'print-outs' available is given in the Loadrite
Operating Manual.
The LP950 printer is supplied complete with:
• a fully adjustable mounting bracket
• a cable which may be plugged between the LP950 and the PRINTER/EDP socket at
the rear of the Loadrite Weigh Indicator.
• a spare ink-ribbon cartridge
Printing is performed by the dot-matrix impact method, utilising a
replaceable ink-ribbon cartridge, on to either:
• standard 57mm calculator plain paper or
• 2 layer NCR paper, (if a duplicate copy is required).

LP950 OPERATORS MANUAL
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2 Installation
Printer
The LP950 printer should be installed at the appropriate mounting angle,
orientation and location to provide optimal conditions of use by the operator.
The following important rules should be observed:
1. The printer should not be located in direct sunlight or near any engine
compartments which can become excessively hot. (If necessary a
screen should be provided to shade the unit from direct heat and
sunlight).
2. To reduce the risk of entry of dust or moisture into the printer case -
• The unit should be mounted with the mouth of the paper exit slot in
a downwards direction.
• Care should be taken that externally accumulated dust, water and
oil etc. does not enter when the lid is opened to replace the paper
roll.
3. The printer should be located in such a way that it does not hinder the
normal operation of the machine controls or the visibility of the operator.
4. The printer should be located in a position where:
• The hinged lid can be opened without restriction, for replacement of
the paper roll or ribbon cartridge. [The lid is secured with a sprung
(not hinged) plastic clip. Bending this clip back too far may result in
its breakage.]
• The operator has easy access to the printer to operate the printer
controls.

LP950 OPERATORS MANUAL
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Electrical Connection
All power supply and signal connections to the printer are contained within
the cable and connector assembly. No other connections are required.
Connection is made by plugging the cable between the socket located at
the rear of the LP950 and the PRINTER/EDP socket located at the rear of
the Loadrite Weigh Indicator. The power supply to the printer is switched
ON and OFF by the main power ON/OFF switch on the side of the Loadrite
indicator.
Ensure that the printer and cable are securely fastened and the cable
routed to avoid accidental physical damage. Special care is needed when
routing cable to avoid physical damage.
Use with Data Capture System
The Loadrite weighing system may be operated with both an LP950 Printer
and a Data Capture System.
Please consult your local LOADRITE dealer for the supply of the Data
Capture System.

LP950 OPERATORS MANUAL
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3 Printer Controls and Indicators
The LP950 printer has two control buttons and three associated indicator
lights on the operator control panel.
Function Of Buttons
Paper Feed
This button is used to fast feed the paper out of the printer. It may be used
when required during paper loading.
On Line
The printer can be switched 'ON LINE' and 'OFF LINE' (i.e. print data or
don't print data) by successively pressing the ON LINE button. When the
printer is 'ON LINE' the associated indicator light will be on.
Test
If the PAPER FEED button is momentarily depressed while holding the ON
LINE button, the printer will print a test print. After printing, the printer will
be left in the OFF LINE state and the ON LINE button must be pressed
before the printer will operate.
Function Of Indicators
On Line
Indicates when the printer is 'ON LINE' and able to accept data for printing.
Ready
Indicates that the printer is ready to accept data for printing.
This indicator goes off when:
The printer is out of paper
The printer is 'OFF LINE'
The printer is busy printing and is unable temporarily to accept any
more data.

LP950 OPERATORS MANUAL
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Paper
When the paper roll in the printer runs out, this indicator will flash on and
off. The 'READY' and 'ON LINE' indicators will go off. When the paper roll
is replaced, the 'PAPER' light will go out, but the ON LINE button must be
pressed to put the printer back 'ON LINE'.
Paper Roll Replacement
IMPORTANT
Do not pull the paper roll backwards through the printer
mechanism as this will cause irrepairable damage!
The LP950 printer uses standard 57mm wide paper; either plain or 2-layer
NCR - if a duplicate copy is required.
The maximum roll diameter in either case is 57mm.
To replace the paper roll -
1.Open the hinged lid by springing the plastic clip and lift the lid wide open.
2.Remove the short length of paper remaining in the printing mechanism
by:
i) Using the PAPER FEED button, or
ii) Using the manual paper feed wheel, or
iii) Gently pulling the paper through the mechanism by hand, in the
NORMAL direction.
3.Remove the old roll core from the holding fingers and insert the new roll
with the paper direction as shown in the diagram.
PAPER LOADING PATH
FEED THROUGH
APPROX 6mm
RIBBON
CASSETTE

LP950 OPERATORS MANUAL
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4.Free the end of the new paper roll, checking that the end is cut
reasonably square and is free from irregular or jagged tears. If
needed, trim the end with scissors.
5.Take the free end of the paper and gently push it over the plastic ramp
and into the mouth of the printer.
6.By using the manual feed knob (or the PAPER FEED button - if power is
connected), feed the paper through the mechanism and leave
approximately 6mm (1/4") of paper protruding from the mechanism.
Ensure that the paper lies between the ink ribbon and the cassette
housing.
7.Tighten the ink ribbon in its cassette by turning the star-shaped disc (on
right-hand end of cassette) two or three turns clockwise.
8.Close the case and secure the lid catch.
9.Press the PAPER FEED button until the paper emerges past the tear-off
edge.
10. Press the ON LINE button and the printer is now ready for operation.
Ribbon Casette Replacement
Printing on plain paper in the LP950 printer is achieved by use of an inked
ribbon which is contained in a replaceable cassette.
The ribbon will normally last for 2 to 3 rolls of paper.
To Replace the Cassette -
1. Open the lid of the printer. If there is paper in the mechanism, remove it by
cutting the paper close to the exit slot of the mechanism.
IMPORTANT
Do not pull the paper roll backwards through the printer mechanism as
this will cause irreparable damage!
2. Press down on the left-hand end of the cassette to pop the right-hand end up.
The cassette can now be lifted out.
3. The new cassette is fitted in the reverse order to removal, i.e. position the
right-hand end of the new cassette in the mechanism and gently push the left-
hand end home.
4. Ensure that the paper lies between the ink ribbon and the cassette housing.

LP950 OPERATORS MANUAL
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Baud Rate
The LP950 printer communicates with the Loadrite weigh indicator at a
communication speed of 9600 baud. Earlier printers communicated at the
slower speed of 1200 baud.
If the LP950 printer is used with an LR810 indicator, the LR810 should
have the Baud Rate setting changed to 9600 baud. (Ask your Loadrite
dealer for details).
If the Baud Rate of the printer needs to be changed, your Loadrite dealer
can provide an instruction sheet.

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4 Specifications
Case - Injection moulded polycarbonate.
Silicon rubber 'O' ring sealed.
UV resistant polyester front panel membrane
pushbuttons.
Environmental - Operating ambient temp. -10°C to +50°C.
The unit must not be operated in direct
sunlight.
Relative humidity 20% to 90%
Splashproof to IP52 (water from above only).
Weight - With mounting bracket : 1.6kg
Print Method - Dot matrix impact on plain paper.
Inking by auto-feed, replaceable, ribbon
cassette.
Paper - Standard plain calculator paper, 57mm wide,
up to 57mm diameter roll.
Optional - 2 layer NCR paper for duplicate
copy.
Print Format - 24 columns, 5 x 8 dot matrix characters, 1.7 x
2.7mm with one dot (0.37mm) descender.
Printable
Characters -
Full ASCII character set, plus extended set.
Print Speed - 1.7 lines/second typical
Paper Feed - 4.0 lines/second typical
Test Print - All printable alpha-numeric characters are
printed.
Indicator Lamps - LED type; On Line, Out of Paper, and Ready.
Control Buttons - On front panel - On/Off Line, Paper Feed,
Test Print Facility
Data Input - Serial ASCII, RS232 protocol with 'printer
ready' handshake. (Ready line goes 'low'
when buffer full or printer printing).
Baud Rate - 1200 or 9600 Baud set by internal jumper.
Data Buffer - 1 line (24 character) Printing of line initiated
when buffer full (24 char.) or LF, CR, CRLF
received. CR and LF are treated as a CRLF
pair.

LP950 OPERATORS MANUAL
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Power
Requirements -
11.2 to 32V DC.
Average Current when Printing:
0.75A @ 12V DC input
0.4 A @ 24V DC input
Peak Current when Printing:
3.0A @ 12V DC input
1.3A @ 24V DC input
Standby Current:
100mA max
40mA typ. @ 24V
Power Input
Protection -
Series diode to protect against reverse
voltage. Input filter and high voltage pre-
regulator into switch-mode main regulator to
protect against "load-dump" and automotive
transients.

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Notes