Custom Audio Electronics DP24-42BA Manuale utente
DP 24/42 BA
PRINTER
DP24-42BA
External Charger Battery
User Manual
www.custom.it
DP 24/42 BA
2
All rights reserved. The reproduction of this manual, either
totally or partially, in any form whatsoever, whether it be on
paper or through computer processes, is strictly prohibited.
Custom Engineering s.r.l. and the resource teams employed
in the making of this manual will not be held responsible for
anyproblemsarisingasaresultofimproperuseofthismanual,
as they guarantee that the information contained in it has
been subjected to careful inspection.
Any suggestions regarding errors in its contents or possible
improvements will be greatly appreciated. The products are
continuously checked and improved. For this reason
Custom Engineering s.r.l. reserves the right to modify the
information contained in this manual without prior notice.
COD. DOME - DP24-42-BA REV. 1.10
Copyright 1998 Custom Engineering s.r.l. – Italy
Custom Engineering
Str. Berettine 2 - 43010 Fontevivo (PARMA) - Italy
Tel. : +39 0521-680111 - Fax : +39 0521-610701
DP 24/42 BA
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GENERAL INFORMATION REGARDING SAFETY
· Read and keep the following instructions.
· Observe all warnings and follow all instructions attached to the printer.
· Before cleaning the printer, disconnect the feed cable.
· Clean the printer with a damp cloth. Do not use liquid or spray products.
· Do not operate the printer near to water.
· Do not place the printer on unsteady surfaces. It could fall and get seriously
damaged.
· Use the type of electricity supply marked on the printer label. In the event of
uncertainty, contact the seller.
· Position the printer in such a way as to ensure that the cables connected to it will
not be damaged.
· Ensure that the maximum absorbed current of the printer does not exceed the
maximum acceptable current for the type of feed cable used.
· Do not put objects of any kind inside the printer as they could cause a short circuit
or damage parts which could affect its performance.
· Do not spill liquids on the printer.
· Do not carry out technical operations on the printer with the exception of the
scheduled maintenance operations specifically indicated in the user’s manual.
· Disconnect the printer from the electricity supply and have it repaired by a
specialized technician should any of the following conditions occur:
A. The feed connector has been damaged;
B. LIQUID has penetrated to the inside of the printer;
C. The printer has been exposed to rain or water;
D. The printer is not operating normally despite the instructions in the user’s
manual having been followed;
E. The printer has been dropped and its case damaged;
F. The performance of the printer is poor;
G. The printer does not work.
DP 24/42 BA
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INTRODUCTION
The DP24-42B is an extremely simple and functional desktop printer. It is the perfect solution for all
industrial, professional and laboratory applications requiring immediate data printout in receipt form:
POS, weighing systems, non-fiscal receipts, security, checking and diagnosis.
It is equipped with a rapid type 6 wire impact print mechanism which uses ordinary paper in 57.5mm
wide rolls.
The DP24-42B printer is outstanding for its compactness and built-in battery pack which ensures
independent power supply to the printer itself. It has a 150 byte print buffer. RS232 serial interface is
standard. It can also be equipped with a Real Time Clock. It is available in three colours and two
models, 24 and 42 columns (DP42).
Unpacking the printer
Open the pack and check:
• that no parts have been damaged during shipping;
• that the inked cartridge is on the print mechanism and that the paper roll is in its place.
Warning
• do not print without paper and/or inked ribbon: this will cause rapid deterioration of the wires;
avoid foreign bodies getting into the printer;
• do not move the carriage manually with the printer switched on;
• avoid knocks to all parts of the printer both during and after installation;
• if possible keep the printer out of direct light.
DESCRIPTION
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Product description
The DP24-42B printer consists of a body in ABS equipped with a cover by means of which access is
gained to the paper roll and print head.
The front part of the printer houses a keyboard equipped with two keys, PRINT and FEED, and one led
(POWER ON).
PRINT KEY
Whenpresseditactivatestransmissionofthecontrolcharacter“$0D”onlyifswitch5oftheDipSwitches
located on the back part of the printer is in the ON position.
FEED KEY
Activates manual paper feed. Pressed briefly, if the RTCK option is installed, it prints the time and date.
GREEN Led
Flashing led indicates correct printer functioning. In the phase of battery charging with the wall-socket
adaptor the led remains permanently lit (in ON position).
The RS232 interface connector, the on-off switch and the battery charging connector are located at the
back of the printer.
DESCRIPTION
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Technical Specifications.
The table below shows the main features of the two printer models: 24 columns and 42 columns.
Table 1 Columns 24 42
Character (W x H mm)
Normal 1.7 x 2.6 1.1 x 2.6
Double height 1.7 x 5.2 1.1 x 5.2
Double width 3.4 x 2.6 2.2 x 2.6
Expanded 3.4 x 5.2 2.2 x 5.2
Graphic dot (W x H mm) 0.33 x 0.38 0.19 x 0.38
Dots per line 144 252
Printing speed
Lines/sec. 1.8 1.0
Characters/sec. 42 42
Feed (lines/sec.) 4 2.3
Line Buffer 24 bytes 42 bytes
Print Buffer 150 bytes
Printing method Dot matrix impact
Character matrix 6 x 10 points
Writing mode Normal and reverse
Character set Normal and extended
Paper roll size 57.5 ±0.5 mm x ø50 max
Standard interfaces RS232 Serial
Optional interfaces TTLSerial
Power Supply Double or single 5Vcc ± 10%
Absorption
Average on standby 38 mA
Average printing 880 mA
Impulseprinting 3.0 A µ600 (Sec)
Environmentals conditions
Operatingtemperature 0°C - +50°C
Operatinghumidity 35% - 85%
Storagetemperature/humidity -20°C - +70°C / 10%-90%
Option RealTime Clock, power supply
DESCRIPTION
DP 24/42 BA
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INSTALLATION AND USE
Installation procedure
•Placetheprinteronaflat,smoothsurface,takingcarethatthereisenoughspacefornormaloperations
of replacing paper and inked ribbon.
• Fit the interface connector, fixing it in place with the screws provided on the printer connector body;
Connections
Logic
The DP24-42 is equipped with an RS232 serial interface (9 pin socket connector).
For the positioning of signals on the connector pins and for connection to a PC (cable) refer to the table
below :
Serial 9 pole connector:
N.pin Name < IN / OUT > Description
1 Connected to pin 4
2 TX OUT Transmit Data
3 RX IN Receive Data
4 Connected to pin 1
5 GND POWER Signal Ground
6 DSR OUT Data Set Ready
7 N.C.
8 RTS OUT Request To Send
9 N.C.
Power supply
The DP24-42B printer is equipped with an NI-CD 4-element battery pack of 1.2V each for a total of 4.8V
with a current output equal to 750mAh. Battery charging should be done using the wall socket adaptor
supplied by Custom Engineering. Maximum power is reached after 8 hours charging. Printing typical
receipts (ASCII text, Line Feed, graphic lines etc.) the printer will run for 3 hours, after which defects will
ariseduetoinsufficientpower.
DESCRIPTION
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Configuration
The Dip Switches on the back of the printer are used for configuring the serial communication protocol
and some of the default parameters.
DIP1 DIP2 DIP3 BAUD Rate
ON ON OFF 300
OFF ON OFF 600
OFF OFF OFF 1200
ON OFF OFF 2400
ON ON ON 4800
OFF ON ON 9600
DIP4 Description
OFF Transmission protocol RTS/CTS
ON Transmission protocol XON/XOFF
DIP5 Description
OFF Deactivates transmission of $0D pressing the PRINT key
ON Activates transmission of $0D
DIP6 DIP7 DIP8 Transmission format
OFF OFF OFF 8 bits without parity, 1 Bit of Stop
OFF OFF ON 8 bits with Even parity, 1 Bit of Stop
ON OFF ON 8 bits with Odd parity, 1 Bit of Stop
ON OFF OFF 7 bits without parity, 2 Bits of Stop
OFF ON OFF 7 bits with Even parity, 1 Bit di Stop
ON ON OFF 7 bits with Odd parity, 1 Bit di Stop
Autotest
The autotest is carried out by keeping the FEED key depressed on switching the printer on. Execution
of the autotest produces printout of the current printer setting data, memory check and printing of the
complete ASCII character set.
DESCRIPTION
DP 24/42 BA
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Replacing the paper roll
To change the paper roll proceed as follows:
1) open the upper cover and place the paper roll in the correct rotation position;
2) insert the end into the print mechanism opening;
3) press the FEED key until a few centimetres of paper comes out of the printer;
4) insert the end into the slot on the printer cover and close the cover.
Replacing the inked ribbon
To replace the inked ribbon proceed as follows:
1)opentheuppercoverandremovetheusedcartridge,applyingpressure at point “A” of the illustration;
2) insert the new ribbon, making sure it is positioned correctly;
3) tension the ribbon by rotating knurled knob “B” and close the cover.
MAINTENANCE
DP 24/42 BA
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Writing modes
The DP24-42B printer has two writing modes, selected by the control characters: NORMAL and
REVERSE.
The base matrix of the characters is 6 x 10 dots. Characters can be printed in various formats.
Graphics
Sizes of the graphics dot and of the number of dots per line vary in accordance with the number of
columns and are shown in Table 1.
To print in graphics mode you must give the command $11 at the beginning of each line.
The format of the lines in graphics configuration is as follows:
X R P6 P5 P4 P3 P2P1
D7 D6 D5 D4 D3 D2 D1 D0
where:
Xis not used;
Rmust be fixed at level 1;
P1,..., P6 are the graphic dots data (1 printing, 0 non printing).
The bit P6 of the dots string transmitted is printed on the left and the others that follow (P5, P4, P3, P2,
P1) towards the right as shown:
1st byte —> 2nd byte —> 3rd byte —>
P6 P5 P4 P3 P2 P1 P6 P5 P4 P3 P2 P1 P6 P5 P4 P3 P2 P1
To print a line of dots you must transmit:
$11, N x $7F (where N is the number of characters per line), $0D.
To print an empty line you must transmit:
$11, $40, $0D.
PRINTER FUNCTIONS
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