Epson 2070 Service Manual - Page 149

LQ-2070 Service Manual Appendix A.1 EXPANDED PRODUCTION COMMANDS 1. Write Bidirectional Adjustment Data to EEPROM • Format 1B 7C 00 06 00 00 FF 00 (in hex) dl d2 d3 • Parameters dl Print speed (0: High speed draft /Draft, 1: Draft, 2: LQ) d2 , d3 Bi-d adjustment data to be written (units = 1/720 inch) n = FFF4H (-12) | n = FFFFH (-1) n = 0000H (+0) n = 0001H (+1) | n = 000CH (+12) 12/720 inch to the right 1/720 inch to the right 1/720 inch to the left 12/720 inch to the left • Range dl d2, d3 0, 1, or 2 -12 ≤ n ≤ +12 (n = d2 + d3 × 256) 2. Print Data for Selected EEPROM Address • Format 1B 7C 00 04 00 01 FE 80 (in hex) dl • Parameter dl EEPROM address • Range dl 00H ≤ dl ≤ 7FH 3. Write Data to Specific EEPROM Address • Format 1B 7C 00 05 00 04 FB 02 (in hex) dl d2 • Parameters dl EEPROM address d2 Byte of data to be written • Range d1 00H ≤ dl ≤ 7FH d2 00H ≤ d2 ≤ FFH (Will not accept addresses 00Hor 02H) 4. Set Print Mode • Format • Parameter • Range 1B 7C 00 04 00 03 FC 81 (in hex) dl dl Print speed bit 0: Reserved bit 1: Reserved bit 2: Head cold mode (1) / not fixed (0) bit 3: Reserved bit 4: Thick paper mode (1) / not fixed (0) bit 5: Reserved bit 6: Power down mode (1)/ not fixed (0) bit 7: Normal mode (1)/ not fixed (0) 00 H ≤ dl ≤ 05H 5. Compare Data at Selected EEPROM Addresses • Format 1B 7C 00 05 00 05 FA 82 (in hex) d1 d2 • Parameters dl EEPROM address d2 Address of data to be compared • Range d1 00H ≤ d1 ≤ 7FH d2 00H ≤ d2 ≤ FFH Rev.A A-1