Epson Stylus COLOR 1520 Service Manual page 8

1.4.6 Printer Adjustment Mode ........................................................................................................ 29
1.4.6.1 Adjustment Method..................................................................................................... 29
1.4.6.2 Adjustment patterns.................................................................................................... 29
1.4.7 Printer Initialization.................................................................................................................. 30
1.4.8 Self-test Printing Mode............................................................................................................ 30
1.4.9 Hexadecimal Dump Function.................................................................................................. 30
1.4.10 Monochrome Printing Mode ................................................................................................. 30
1.5 Physical Specification .......................................................................................... 31
1.6 Main Components ................................................................................................. 32
1.6.1 C211 MAIN Board ..................................................................................................................... 32
1.6.2 C172 PSB/PSE Board............................................................................................................... 33