Scantron OpScan 4ES Operator's Manual page 60

Chapter 3: Operating Your Scanner
Scanning Procedure
40
Stack the sheets so that the leading edge of the
sheet goes into the scanner first, with the trailing
edge going in last. Align the guide edge with the
edge of the input tray closest to the front of the
scanner (guide rail).
NOTE:
Form ID Marks identify the sheet to the
scanner. Timing Marks signal the scanner where
to read across a sheet.
6.
Verify that the sheets are as far toward the read
head as possible. Slide the paper guide so that it
just touches the sheets.
7.
Open your scanning software on the host
computer and use it to control the scanning
process.
Scantron OpScan 4ES and NSIGHT 4ES Scanners
Timing Marks
Guide Edge