关于man中的字体(或是解码?)

我的man不知怎么回事,近来不能正常工作,经常显示如下这些东西
tmp/zman04RJYY:70: warning: can't find special character `u4F55'
/tmp/zman04RJYY:70: warning: can't find special character `u62C5'
/tmp/zman04RJYY:70: warning: can't find special character `u4FDD'
/tmp/zman04RJYY:71: warning: can't find special character `u66F4'
/tmp/zman04RJYY:71: warning: can't find special character `u7528'
/tmp/zman04RJYY:71: warning: can't find special character `u8BF4'
/tmp/zman04RJYY:71: warning: can't find special character `u5546

并且显示出来的经常很没格式,字体松散.有些干脆就几个字,我怀疑是字体(或者是其他什么字体方面的丢失)可是我又不知道是那方面的,不知怎么弥补.敢问哪位大侠赐教两下