Epson Stylus Pro 7400, Service Manual

Page: 116 / 428

EPSON Stylus Pro 7400/7800/9400/9800 Revision B
Product Description Control Panel 116
Platen Position Check
The position of each ink pad on the adjusted platen can be checked.
Figure 1-28. Platen Position Adjustment Pattern
Check if the printed lines correspond to left and right edges of each ink pad.
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.
Figure 1-29. Rear Sensor Position Adjustment
Print mode: 360dpi, Uni-D, 320cps, VSD1, Large
Pattern
Ink Pad
Ribs on Platen
Allowable Range
Rear Senor Position
Paper Feed Direction
(Minus setting side)
Print mode: 360dpi, Uni-D, 320cps, VSD1, Small