| 摘要 |
<p>A printer (10) including a print head assembly (52) and a transport belt (14) for transporting a plastic card (110) through the printer (10). The transport belt (14) includes a surface self-adhering to a surface of the plastic card (110). The printer includes a print head (50) which is moved across a surface of the card (110) while printing on the card (110). The printer (10) includes a print head controller for interfacing between a microprocessor (301) and a continuous tone print head (50), the number of print intensities either fixed or selected by the microprocessor (301) into a first-in first-out (FIFO) memory (319), where a controller state machine (325) reads the image data from the FIFO memory (319) and compares each pixel value to a level value generated by the state machine (325) and loads a one-bit value into the print head (50) for a number of iterations equal to the number of print intensities to initiate printing.</p> |
