Printing problem

Our remote warehouse just reported that one of our printers started
printing: "PBACKUP01" after every report.  It is an Epson DFX8500.  This
is throwing off the next print job by 1 line so it is throwing the
vertical alignment off.  When text is printed to the printer directly
(not from the AS/400), and everything is working fine. So at this point,
it appears that the only time the problem appears is when something is
printed from the AS/400. The printer has not been changed recently. The
printer has been there for a couple years. They said this problem just
started happening about 3 weeks ago.  It is attached through a jet
direct.  

If you guys know of anything on this please let me know.  Thanks for
your help.

Output Queue Description
Queue:   WH90OUTQ       Library:   QUSRSYS         
Status:                                            
  Writer active  . . . . . . . . . . . :   Y       
  Writer name(s) if active . . . . . . :   WH90OUTQ
  Output queue held  . . . . . . . . . :   N       
Maximum spooled file size:                         
  Number of pages  . . . . . . . . . . :   *NONE   
  Starting time  . . . . . . . . . . . :           
  Ending time  . . . . . . . . . . . . :           
Writers to autostart . . . . . . . . . :   *NONE   
Display any file . . . . . . . . . . . :   *NO     
Job separators . . . . . . . . . . . . :   0       
Operator controlled  . . . . . . . . . :   *YES    
Order of files on queue  . . . . . . . :   *FIFO   
Data queue . . . . . . . . . . . . . . :   *NONE   
  Library  . . . . . . . . . . . . . . :           
Authority to check . . . . . . . . . . :   *OWNER       
Remote system  . . . . . . . . . . . . :   *INTNETADR   
Remote printer queue . . . . . . . . . :   *NONE        
Queue for writer messages  . . . . . . :   WH90OUTQMQ   
  Library  . . . . . . . . . . . . . . :     *LIBL      
Connection type  . . . . . . . . . . . :   *IP          
Internet address . . . . . . . . . . . :   192.168.90.99
Destination type . . . . . . . . . . . :   *OTHER       
Host print transform . . . . . . . . . :   *NO          
User data transform  . . . . . . . . . :   TSPRWPR   
  Library  . . . . . . . . . . . . . . :     TSGPL   
Manufacturer type and model  . . . . . :   *EPDFX8000
Workstation customizing object . . . . :   *NONE     
  Library  . . . . . . . . . . . . . . :             
Image configuration  . . . . . . . . . :   *NONE     
Destination options  . . . . . . . . . :   XAIX      
Print separator page . . . . . . . . . :   *YES      
User defined option  . . . . . . . . . :   *NONE     
User defined object:                                 
  Object . . . . . . . . . . . . . . . :   *NONE     
    Library  . . . . . . . . . . . . . :             
  Object type  . . . . . . . . . . . . :             
User driver program  . . . . . . . . . :   *NONE                
  Library  . . . . . . . . . . . . . . :                        
Spooled file ASP . . . . . . . . . . . :   *SYSTEM              
Text description . . . . . . . . . . . :   CSC 90 Report Printer