the figure illustrates the locations of the different parts of your arcus 1200.

1. tpu unlocking screw
2. tpu
3. rulers
4. removable tray (glass plate/batch slide holder frame)
5. stand-by switch
6. power indicator
7. progress indicator
8. indicator for transparency scanning (tx)
after 15 minutes of inactivity of the scanner, the scanner switches automatically to stand-by mode. to switch off your scanner, disconnect the power cord from the wall outlet.

1 35 mm framed and 4 × 5 inch batch slide holder
2 35 mm strip and 6 × 9 cm batch slide holder
3 batch slide holder frame
4 small plastic holder to make 6 × 9 cm universal (6 × 7 cm or 6 × 6 cm)
the following figure illustrates the location of the different parts at the rear of your scanner.

1 power input
2 scsi id switch
3 tpu-cable
4 50-pin scsi interface connector
5 25-pin scsi interface connector
6 tpu connector