Epson Stylus Photo 1390 Service Manual page 13

EPSON Stylus Photo 1390/1400/1410
Printhead movable area
Figure 1-5 to Figure 1-9 show movable area of the printhead in relation to the printing
area in sub-scanning (paper-feed) direction.
Top edge
(1) When top margin is set to 3 mm (0.12 in.)
a = Not defined
Figure 1-5. Printhead Movable Area (3-mm Top Margin)
PRODUCT DESCRIPTION
(2) When top margin is set to 0 mm
During printing the area indicated by the arrows a in the figure, some nozzles
are controlled not to eject ink droplets. When #1 nozzle passes through
printing area C, the control is cleared.
Figure 1-6. Printhead Movable Area (0-mm Top Margin)
Details on the length that the printhead moves off the paper edges (a), printing area off
the paper edges (b), and points where the nozzle control is cleared (e) are shown in the
table below.
4x6 (Hi-speed)
68/360"
a
(4.80 mm/0.19 in.)
13/360"
b
(0.92 mm/0.04 in.)
-55/360"
e
(-3.88 mm/-0.15 in.)
Note : As for e values, areas off the paper edges are indicated by negative values.
Nozzle positions for printing off the paper edge: #1 to #18 (18 nozzles in total)
Nozzle pitch for printing off the paper edge:
Printing Area
4x6 A4/Letter or smaller
68/360" 68/360"
(4.80 mm/0.19 in.) (4.80 mm/0.19 in.)
9/360" 9/360"
(0.64 mm/0.03 in.) (0.64 mm0.03 in.)
-50/360" -46/360"
(-3.52 mm/-0.14 in.) (-3.25 mm/-0.13 in.)
68/360 (4.80mm)
Revision B
A3+ or smaller
68/360"
(4.80 mm/0.19 in.)
9/360"
(0.64 mm0.03 in.)
-38/360"
(-2.68 mm/-0.1 in.)
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