Epson Stylus Pro 7400 Service Manual page 116

EPSON Stylus Pro 7400/7800/9400/9800
Platen Position Check
The position of each ink pad on the adjusted platen can be checked.
Print mode: 360dpi, Uni-D, 320cps, VSD1, Large
Figure 1-28. Platen Position Adjustment Pattern
Check if the printed lines correspond to left and right edges of each ink pad.
Allowable Range
Ink Pad
Product Description
Pattern
Ribs on Platen
Rear Sensor Position Adjustment
Rear sensor position setting in the firmware can be adjusted to detect cut sheet length
accurately (to ensure the maximum printable area on the bottom of the sheet).
Load A3-size cut sheet paper in portrait orientation. A horizontal black 1-dot width line
is printed at the position 14 mm away from the bottom edge. Measure the distance
between the line and the bottom edge, and enter the actual length as a correction value.
When this item is selected, the printer requires to load a cut sheet paper even if a cut
sheet is already set in the printer.
Print mode: 360dpi, Uni-D, 320cps, VSD1, Small
Figure 1-29. Rear Sensor Position Adjustment
Control Panel
Rear Senor Position
Paper Feed Direction
(Minus setting side)
Revision B
116