User manual CITIZEN SLD-2012

[. . . ] * Unplug this product from the wall outlet before cleaning. * Do not place this product on an unstable cart, stand of table. The product may fall, causing serious damage to the product. * Slots and openings on the cabinet and the back or bottom are provided for ventilation. [. . . ] Only with a 40-column type printer, following printing of dip switch information, printing is available in on-line in hexadecimal dump mode. (3) Hexadecimal dump mode All data sent from the host computer are printed in hexadecimal codes. When data for the last line are not sufficient for full one line, data of the last line are printed out with SEL switch being pressed and deselected (OFF LINE). Example of Printing in Dump Mode CITIZEN 16/47 SLD-2012 User's Manual 4. 6 Paper End. Mechanical Alarm (1) Paper end Paper shortage is detected and informed with SEL lamp blinking at 0. 5 second intervals, where printing is suspended. At this time, power supply to the motor and printing solenoid is stopped with BUSY signals output in the host computer. To discontinue from Paper End state, insert new paper and press SEL switch twice. By pressing SEL switch twice, you can print, without changing paper, data for one-line input buffer on the remaining page. (2) Mechanical alarm On occurrence of locked motor, any kind of trouble in the mechanism is suspected. Power supply to the motor and printing solenoid is stopped and BUSY signals are output to the host computer. SEL lamp is then blinked at 1/4 second intervals. 3) DTR (DATA TERMINAL READY) Input command or data while this signal is in ready state. Data input while the signal is BUSY will cause an overrun error to occur. Data can be provided to the input buffer even if the printer is printing. Busy state may also occur when power is applied, or during test printing, on-line, or when the printer is reset. 4) RES ET Signal resets the entire printer. (More than 4ms. ) 5) FG(FRAME GND) Case ground. 6) GND Signal ground for the circuit. CITIZEN 24/47 SLD-2012 User's Manual (2) Data configuration (1) Start bit (1 bit) (2) Data bit (7 or 8 bit) (3) Stop bit (more than 1) CITIZEN 25/47 SLD-2012 User's Manual 6. 4 Electrical Characteristics (1) RS-232C I/O Signals (RD / TD / DTR) *Input (RD / TD) Mark = (-8V): Space = (+8V): *Output (DTR) Mark = (-8V): Space = (+8V): stop bit start bit for Busy for Ready (2) TTL Circuit Input (RESET) [HOST] [SLD-2012] Set to low when reset [HC04 or equivalent] CITIZEN 26/47 SLD-2012 User's Manual 6. 5 Error Detection * Communication error Parity Error When parity nonconformity heaving been detected out of odd-even parity checking conducted when parity check is assigned. Framing Error When space state detected on detection of stop bit. Overrun Error When next following data having been transferred to receiving buffer register regardless of presence of data in that receiving buffer register. On occurrence of the above error, convert data at the time of occurrence into ` ` (7FH) to print it out. RECEIVING CONTROL AND BUFFERING The SLD-2012 controls, on receipt of print data, receiving (DTR Control) in one-word unit. [. . . ] With 0 set to this parameter while the uppermost bit is in use, ´4 enlargement results in incomplete images for which the uppermost part is lacking. [Setting of Addresses] A1 : Registration starting address (20H~FFH) A2 : Registration ending address (20H~FFH) CITIZEN 38/47 SLD-2012 User's Manual [Pattern Data Configuration](For 40-Column Model) Pattern data to be registered must consist of 9 bytes per character. That is, pattern data configured by 9´8 dot matrix is broken up into 9 vertically each of which is represented by 1 byte of data. All together, 9 bytes of data are transmitted. [. . . ]