Custom Audio Electronics P190 User Manual
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Custom Audio Electronics P190 User Manual

Wall printer
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User's Manual
P190
Wall printer
www.custom.it
P 190

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Summary of Contents for Custom Audio Electronics P190

  • Page 1 User’s Manual P190 Wall printer www.custom.it P 190...
  • Page 2 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-P190-T Revision 1.10 Copyright © 1998 Custom Engineering s.r.l. – Italy Custom Engineering Str.
  • Page 3 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. •...

  • Page 4: Table Of Contents

    CONTENTS GENERAL CONTENTS 1. DESCRIPTION 1.1 General features 1.2 Product description 1.3 Technical specifications 2. INSTALLATION AND USE 2.1 Removing the printer from its packaging 2.2 Installation procedure 2.3 Connections 2.4 Configuration 2.5 Self-test 2.6 Precautions 2.7 Maintenance 3. INTERFACES 3.1 TTL serial 3.2 TTL parallel 3.3 RS232 serial (option)
  • Page 5 CONTENTS TABLE CONTENTS Table 1, technical specifications Table 2, serial output signals Table 3, parallel output signals Table 4, control characters FIGURE CONTENTS Figure 1, front view Figure 2, overall view Figure 3, installation Figure 4, specimen self-test Figure 5, paper changing Figure 6, Current Loop selection Figure 7, printing modes Figure 8, character sets...

  • Page 6: Description

    1.1 GENERAL FEATURES The P190 (fig. 1) is an extremely simple and functional wall printer. It is the ideal solution for applications which require the immediate printing of data on a ticket, whether they be of an industrial, professional or laboratory nature.

  • Page 7: Product Description

    DESCRIPTION 1.2 PRODUCT DESCRIPTION The P 190 printer has an ABS casing with a top covering the paper roll and print head. The dimensions of the printer are shown in Figure 2. The keyboard, located on the front of the printer, consists of the PRINT and FEED keys with their respective LEDs.

  • Page 8: Technical Specifications

    DESCRIPTION 1.3 TECHNICAL SPECIFICATIONS Table 1 lists the main features of the two printer models: P 190 24 and 40 columns. TABLE 1 COLUMNS Characters (L 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...

  • Page 9: Installation And Use

    INSTALLATION and USE 2.1 REMOVING THE PRINTER FROM ITS PACKAGING Open the package and check that: a) none of the parts have been damaged during transportation; b) that the ink cartridge is fitted on the printing mechanism and the paper roll is in place; c) the two brass screws and washers necessary for installing the printer are, in fact fitted on it FIGURE 3 2.2 INSTALLATION PROCEDURE...

  • Page 10: Connections

    INSTALLATION and USE 2.3 CONNECTIONS Power supply With regard to power supply, the P 190 printer has a standard AMPMODU1 4-pin male (J3) type connector. The power supply connector pins are marked as follows: 1 GND 2 GND 3 +VT: 5 Vcc ± 15% (printer needle power supply) 4 +VCC: 5 Vcc ±...
  • Page 11 INSTALLATION and USE The J1 26-pin connector can be used if the flat cable does not exceed 700 mm in length and has a diameter of at least 0.12 mm2. The corresponding signals are: +VCC +VCC D7 * RESET S-EN READY/RTS FEED STB/RD...
  • Page 12 INSTALLATION and USE BAUD 1200 2400 4800 9600 All the other combinations select a speed of 1200 bauds. D3 = 1: flag-type transmission protocol. When the print buffer is full, the printer sends a low level on the RTS signal, which interrupts transmission; when the buffer is able to receive further data, the level of the RTS signal is then changed to 1.

  • Page 13: Configuration

    INSTALLATION and USE READY/RTS (output): in parallel configuration the high level indicates that the printer is ready to receive data. The low level indicates that it is on standby (bus Y). In serial communication, if the CTS/RTS protocol is enabled the high logic state (1) indicates that the printer is ready to receive data; the low logic state (0) indicates that the print buffer is full and cannot receive data.

  • Page 14: Self-Test

    INSTALLATION and USE Configuration through the key board is not usually enabled. In order to enable it, shortcircuit the JP1 jumper on the printed circuit (see Appendix C ). Take care not to shortcircuit the JP3 jumper next to it (to be used for internal tests only). If, when the printer is switched on, both keys are held down simultaneously, the printer enters configuration mode and prints the first modifiable parameter.

  • Page 15: Maintenance

    INSTALLATION and USE 2.7 MAINTENANCE Changing the paper roll To change the paper roll, proceed as follows: 1) open the top of the printer and place the paper roll in position, following the arrow, as indicated in figure 5; 2) insert the end of the roll in the slit (A) of the print mechanism; 3) press the FEED key (B) so that a few centimetres of paper come out of the printer;...

  • Page 16: Interfaces

    INTERFACE Selection of the standard interface, TTL serial and parallel, is given by the status of the S-EN pin of J1 (see paragraph 2.3). 3.1 TTL SERIAL In the serial protocol, the signals which characterize communication are TD, RD and RTS if the RTS/ CTS protocol has been selected;...

  • Page 17: Ttl Parallel

    INTERFACE 3.2 TTL PARALLEL In parallel communication the useable signals are: 1) 7 or 8 bit data bus; 2) STROBE signal indicating data validity; 3) READY signal indicating that the printer is ready to receive data. Transmission format valid data Flow diagram P 190...

  • Page 18: Rs232 Serial (Option)

    INTERFACE 3.3 RS232 SERIAL (option) The printer has an RS232 serial interface and current loop to be installed on the P 190 controller. The connection is made with a 25-pin rectangular female connector. The signals on the connector pins are indicated in Table 2.
  • Page 19 INTERFACE The following personalizations may be obtained, relative to transmission format and the PRINT key on the P 190’s front panel, by using the dip-switch on the RS232 card: DIP 1 DIP 2 DIP 3 BAUD Speed 1200 2400 4800 9600 DIP 4 Description...

  • Page 20: Centronics Parallel (Option)

    INTERFACE 3.4 CENTRONICS PARALLEL (option) The printer can be equipped with a CENTRONICS parallel interface to be installed on the P 190 controller. The connection is made with a 25-pin rectangular female connector. The signal layout is exactly the same as that used by personal computers which use the same connector, as shown in Table 3. The pins which are not indicated are not connected.

  • Page 21: Real Time Clock (Option)

    INTERFACE 3.5 REAL TIME CLOCK (option) The Real Time Clock is available as an option. Printing and adjustment of the clock are managed by a series of control characters: Prints clock Sets clock RTCK transmission in serial ESC T Enters the time in the print buffer ESC D Enters the date in the print buffer ESC U...

  • Page 22: Installation Of Options

    INTERFACE 3.6 INSTALLATION OPTIONS To install the RS232 serial and CENTRONICS parallel options, please refer to figure 3 : 1) insert the plastic spacers provided into the holes on the interface card; 2) insert the option (C) into the connector and its spacers, taking care to centre the pins correctly. P 190...

  • Page 23: Printer Functions

    PRINTER FUNCTIONS 4.1 PRINTING MODES The P 190 printer has two printing modes which can be selected by means of control characters: normal and reverse. FIGURE 7 Normal mode Reverse mode The basic character matrix is 6 x 10 points. Characters may be printed in various formats. The following table shows the size of the characters for the respective formats, depending on whether the printer is the 24 or 40 column model.
  • Page 24 PRINTER FUNCTIONS 4.2 GRAPHICS The size of the graphic point and the number of points per line vary depending on the number of columns: Size of graphic point Print format 24 column 40 column Graphic point (L x H mm) 0,33 x 0,38 0,19 x 0,38 Points per line...
  • Page 25 PRINTER FUNCTIONS 4.3. CONTROL CHARACTERS Table 4, on page 26, lists all the commands for function management of the P 190 printer. These commands can be transmitted to the printer with either the serial or parallel interface; if, however, the parallel interface is used, the user will not be able to receive the data required, since this interface is unidirectional.
  • Page 26 PRINTER FUNCTIONS ESC o $1B $6F Prints total operating hours ESC B $1B $42 Sets character font 1 ESC b $1B $62 Sets character font 2 (aa) ESC r (aa) $1B $72 Reads a piece of data at an address (aadd) ESC w (aadd) $1B $77 Writes a piece of data (dd) in an address (aa)
  • Page 27 PRINTER FUNCTIONS The command $02 is used to activate double height printing. This command clears the print buffer and for this reason it must not be transmitted immediately after an ASCII string, otherwise this string will be erased. It is better, therefore, to transmit the command $02 after a (CR) $0D so that the string is printed first and, on clearing the buffer, double width printing is enabled.
  • Page 28 PRINTER FUNCTIONS Forward feeds (n) lines The command $0B forward feeds the printer by the number of lines previously set. This must be an ASCII number from 0-9; obviously if the number is zero, nothing will happen. Take care because the code $0B erases the line buffer and so, if there are any characters in it, they will automatically be erased.
  • Page 29 PRINTER FUNCTIONS Sets the time and date in serial The command $13 sets the time and date of the clock installed inside the P 190. Ther are two ways of setting it: the first uses the 24-hour clock and the second the 12 hour a.m., p.m. clock. In the first case the 10 ASCII characters corresponding to the time and date have to be transmitted, followed by the command $13.
  • Page 30 PRINTER FUNCTIONS programmable character. In fact, it is possible to programme two characters which can be printed at any time with the codes $1E and $1F. There are two ways of programming the characters; the can be saved in a non volatile memory which stores all the data, even when the printer is switched off, or alternatively, in a memory which is automatically erased when the power is switched off.
  • Page 31 PRINTER FUNCTIONS Sets the printer in normal mode The command “ESC” N selects normal mode printing. In normal mode printing, the ticket comes out of the printer with the writing upside down and running from right to left. When the printer is switched on, the default value is selected by the flag of a location called the “option register”;...
  • Page 32 PRINTER FUNCTIONS fitted inside the printer in the line buffer. This command can be used for entering the date in the context of a sentence without zero-setting the line buffer. If, for example, you wish to write: DATE : 09-11-93 TEST OK you will send: DATE : $1B$55 TEST OK $0D If you only wish to print the date, it is enough to transmit $1B$55$0D.
  • Page 33 PRINTER FUNCTIONS Prints total operating hours The command “ESC” o enters the total operating hours in the line buffer. These hours are allocated in the battery-driven RAM of the Real Time device fitted inside the printer. If, therefore, there is no Real Time Clock, this command will produce no effect.
  • Page 34 PRINTER FUNCTIONS The command “ESC” r makes it possible to read in a location of the non volatile memory (EEPROM). This command can only be used with the serial port as it is bi-directional. The communication protocol is defined by the dip-switches on the serial interface. There are 256 legible locations, starting from the $00 location up to the $FF location.
  • Page 35 PRINTER FUNCTIONS port accepts 8 bit data; if it is 1 the port accepts 7 bit data. If the 7-bit protocol is enabled, the printer will only be able to print non extended characters, i.e. those from code $0E to code $7F. •...
  • Page 36 PRINTER FUNCTIONS printer is using the parallel protocol, the command will produce no effect. The reply to this question is made in two ASCII bytes containing the option register value. If, for example, we receive: 0 9 (or $30 $39) this means that the configuration will be 00001001.
  • Page 37 PRINTER FUNCTIONS The command “ESC” V ($1B $56) followed by a number (from 1 to 3) prints block n. The file continues printing until it reaches the terminating command “ESC” Z. Obviously, if the block is clear, or if all the characters are $20, the printer will not print anything.
  • Page 38 PRINTER FUNCTIONS P6 P5 P4 P3 P2 P1 1° byte P6 P5 P4 P3 P2 P1 2° byte P6 P5 P4 P3 P2 P1 3° byte P6 P5 P4 P3 P2 P1 4° byte P6 P5 P4 P3 P2 P1 5°...
  • Page 39 APPENDIX A Serial connection with personal computer with 9-pin connector. 9-pin female connector to PC Rectangular male 25-pin connector to printer P 190...
  • Page 40 APPENDIX A Serial connection with personal computer with 25-pin connector. Rectangular male 25-pin Rectangular 25-pin female connector to printer connector to PC P 190...
  • Page 41 APPENDIX A A.2 CENTRONICS PARALLEL CONNECTION WITH PC Standard Centronics parallel connection with personal computer with 36-pin ribbon cable connection. Rectangular male 25-pin connector to printer The connections marked with an (*) are not essential for thefunctioning of the interface. Standard Centronics ribbon cable 36-pin female connector to PC P 190...
  • Page 42 APPENDIX A Centronics parallel connection with personal computer with 25-pin connector Rectangular male 25-pin connector to printer The connections marked with an (*) are not essential for the functioning of the interface.Rectangular 25-pin female connector to PC P 190...
  • Page 43 APPENDIX B B.1 PSM05 POWER SUPPLY The following figure shows the model PSM05 power supply, manufactured by Custom Engineering, that can be used to operate the P190 printer. ssis GND cha LED on 0V 5V a t l a t l...
  • Page 44 APPENDIX B B.2 ALI 9/40 POWER SUPPLY The diagram below shows the layout of the ALI 9/40 power supply card, which supplies the printer with an available voltage ranging from 9 to 40 Vcc, through connector J1. The card is fitted directly onto the printer interface card, by means of connector J2.
  • Page 45 APPENDIX C C.1 ENABLING OF SETUP FROM KEYBOARD Setting up using the keyboard, a function which is disabled by default, can be enabled by operating directly on the printed circuit and shortcircuiting the jumper JP1 by soldering (see diagram below). Take care not to shortcircuit the JP3 jumper next to it, which is pre-set for internal use (control test during operations).

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