User manual CITIZEN IDP-3310

[. . . ] SERIAL THERMAL PRINTER MODEL iDP3310 iDP3310 User's Manual IMPORTANT SAFETY INSTRUCTIONS · Read all of these instructions and save them for future reference. · Follow all warnings and instructions marked on the product. · Unplug this product from the wall outlet before cleaning. · Do not use this product near water. [. . . ] When the data is not being transferred, the received data should be always maintained as a mark. Applicable connectors (D-Sub connectors) : 17LE-13250 (Equivalent to DDK) · Printer side : 17JE-23250 (Equivalent to DDK) · Cable side Mini DIN connector : 8-pin DIN connector · Host side Mini DIN-DIN cable (Provided only for V interface model) 26 CITIZEN iDP3310 User's Manual 7. 3 Input and Output Signals 7. 3. 1 Input and Output Signals (1) RD Serial receiving data signal. On occurrence of framing error, overrun error, or parity error, the data is canceled. (2) DTR When this signal is READY, write data or a command. When they are written in BUSY, overrun error is occurred and data is ignored. Even during printing, data can be loaded in the input buffer. Further, BUSY can take place on supply of power, during test printing, during on-line, or on resetting. (3) TD If a command is received, which requests the printer condition or printer status, the corresponding 1-byte data will be output. (4) DSR If this signal is a Space, the data will be sent from the printer side. Note that if this signal is a Mark when a request to send command is executed, the printer will wait until the signal becomes a Space. (6) GND This is a common ground on the circuit. 27 CITIZEN iDP3310 User's Manual 7. 3. 2 Data Configuration t Mark b0, b1, b2, . . . . . . . . . Space (1) (2) (3) (1) Start Bit (2) Data Bit (+ Parity Bit) (3) Stop Bit (1 or More) (1) Start bit In 1/2 bit from the Mark-to-Space starting edge, state is read once again. When "Space" state is confirmed, it is recognized as the start bit. If it is "Mark" state, it is not taken as the start bit. Without taking it as an error, detection of a start bit is carried out once again. (2) Data Bit + Parity Bit Data bit and parity bit are sampled at 1/2 start bit for time length equal to 1 bit. The state thus sampled is taken as the data for the bit concerned. Bits are named as Bit 0, Bit 1, . . . , parity bit counted from the one close to the start bit. (3) Stop bit The stop bit is a mark level of 1 bit or more. With "Space" having been detected on detection of a stop bit, framing error takes place. 28 CITIZEN iDP3310 User's Manual 7. 3. 3 Error Detection Parity, framing, and overrun are detected. On detection of any error, the data are canceled. (1) Framing error With "Space" state having been detected on detection of a stop bit, error takes Space. (2) Parity error With an error having been detected under specifying parity check, the data is canceled. [. . . ] (1) Wenn die Druckfunktion vorübergehend unterbrochen wurde, weil sich das Ende des Druckpapiers beim Auslaufen oder Einschieben verfangen hat. (2) Wenn das Druckpapier während des Druckens oder einer Druckpause gewaltsam in Druck-oder Rückwärtsrichtung gezogen wird. (3) Wenn das Druckapier festgehalten wird und nicht vorgeschoben weden kann. (4) Wenn die Druckfunktion vorübergehend unterbrochen wurde, weil Fremdkörper den Druckkopf blockieren. [. . . ]