Yes, if there is no name you can use:
trigger name=t_image, value=’CRC1MQPFJO’, dot=2920, scan=1012, source=image, mode=fapa;
For PostScript and in other cases where the graphic does not have a name, you can trigger on the location. If the graphic is inline and not named like an AFP page segment, use:
trigger name=t_image, dot=2920, scan=1008, source=image, mode=fapa;