回复：打手印

大约会多久让打手印？
1-2 months

通知打手印是必须在一个固定日期和时间去呢,还是会给一个区间随时去都可以？
they just can give you a detailed date and time.

如果主申请人正外出不方便去，可以申请改期吗？谢谢了！
you can. but you should get it confirmed before you want to change it.