errors while trying to re-install printer with YaST (SuSE 9.1)

I have been using SuSE 9.1 for about a month. Everything was working well until a printing error came about while I was trying to get my HP LJ 6MP to recognize my manual feed tray. I tried re-configuring and then re-installing the printer with YaST, but it refuses to print out a test page. Now I'm getting the following error messages: cups(File)DoRequest error: client-error-not-authorized lpr: unable to print file: client-error-request-value-too-long I'm not a newcomer to Linux, but am a newcomer to SuSE 9.1 and CUPS. Can anyone tell me what specifically these error messages mean and what might be causing them? Thanks!