Epson 2070 - LQ B/W Dot-matrix Printer Service Manual page 149

LQ-2070 Service Manual
A.1 EXPANDED PRODUCTION COMMANDS
1. Write Bidirectional Adjustment Data to EEPROM
• Format
• Parameters
• Range
2. Print Data for Selected EEPROM Address
• Format
• Parameter
• Range
3. Write Data to Specific EEPROM Address
• Format
• Parameters
• Range
4. Set Print Mode
• Format
• Parameter
• Range
5. Compare Data at Selected EEPROM Addresses
• Format
• Parameters
• Range
Rev.A
1B 7C 00 06 00 00 FF 00 (in hex) dl d2 d3
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)
dl 0, 1, or 2
–12 ≤ n ≤ +12 (n = d2 + d3 × 256)
d2, d3
1B 7C 00 04 00 01 FE 80 (in hex) dl
dl EEPROM address
00H ≤ dl ≤ 7FH
dl
1B 7C 00 05 00 04 FB 02 (in hex) dl d2
dl EEPROM address
d2 Byte of data to be written
00H ≤ dl ≤ 7FH
d1
00H ≤ d2 ≤ FFH (Will not accept addresses 00Hor 02H)
d2
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
1B 7C 00 05 00 05 FA 82 (in hex) d1 d2
dl EEPROM address
d2 Address of data to be compared
00H ≤ d1 ≤ 7FH
d1
00H ≤ d2 ≤ FFH
d2
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Appendix
12/720 inch to the right
1/720 inch to the right
1/720 inch to the left
12/720 inch to the left
A-1