Epson Stylus Pro 7400 Service Manual page 98

EPSON Stylus Pro 7400/7800/9400/9800
Head Alignment adjustment patterns
Adjustment pattern print specifications
Adjustment pattern Bi-D 2-COLOR (#1, #2, #3)
height
Bi-D All (#1, #2, #3)
Uni-D (#1, #2, #3)
AUTO BI-D 2-COLOR
AUTO Uni-D All (#1, #2, #3)
AUTO Uni-D (#1, #2, #3)
Others When printing from the edge of the paper, 100 mm of roll paper or
50 mm of cut sheet is fed before starting printing.
Print mode for each adjustment pattern
Table 1-49. Each adjustment item
Adjustment item
Head speed (CPS)
Bi-D #1 320
#2 240
#3 240
Uni-D #1 320
#2 240
#3 240
Product Description
Parameter
Dot size
VSD1(Large Line/Middle Block)
VSD2(Large Line/Large Block)
VSD3(Large Line/Large Block)
VSD1 (Large)
VSD2 (Large)
VSD3 (Large)
Control Panel
Adjustment pattern printing of each adjustment item
Number of printing 9 Patterns (1 for each color)
patterns
Print direction
Bar:
Block
Upper patterns: Leftward
Lower patterns: Rightward
Pattern interval
Leftward:
Rightward: Print No.5 to be always current setup value.
Relationship between number and amount of shift during pattern printing
Print pattern number
Amount of shift
n/1440inch (VSD1, VSD2, VSD4)
Revision B
Going back and forth every 4dot
equal interval
Position is shifted in fixed quantities, with No. 5 as
the standard.
1 2 3 4 5 6 7
–4 –3 –2 –1 0 +1 +2
8 9
+3 +4
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