PSF/AIX: Limitations of PSFCTL backspace with Jam Recovery Type

ITEM: RTA000148092



Q:                                                                              
Topic thread:                                                                   
Printer Systems (PRINT)                                                         
 PSF/AIX                                                                        
                                                                                
Customer has 3900-0W1 TCP/IP connected to PSF/AIX.  3900 has Troy MICR          
post-processor.  On the 3900-0W1 control panel the printer can have its         
"Jam Recovery Type" configuration option set to "Suppress MICR Jam              
Repositioning".  If it is set to this will PSFCTL backspacing "-b"              
still work?                                                                     
                                                                                
Thank you.                                                                      
                                                                                
A:                                                                              
I checked with both the AFCCU group and the owner of the backspace code        
to verify exactly what the "Suppress MICR Jam Repositioning"                    
configuration setting means to PSF. Basically, this setting causes the          
printer to tell PSF, when a jam occurs in the MICR post-processor, that         
all of the pages beyond the printhead in the printer (i.e., the                 
Committed Page Counter) have successfully stacked. This prevents PSF            
from resending any of the pages that were between the printhead and the         
post-processor, and avoids any possible duplicate pages. It is then up          
to the customer to manually reprint any pages which were lost in the            
jam.                                                                            
                                                                                
In general, 'psfctl -b' backspacing should work regardless of the               
setting of the 'Jam Recovery Type' configuration option on the printer.         
However, there is one case where setting this option to "Suppress MICR          
Jam Repositioning" will affect backspacing.  The case is this: When a           
MICR post-processor jam occurs near the end of a job and the last page         
of the job has already passed the printhead, the job will appear to PSF         
to be completely stacked, at which point PSF will not honor a backspace         
command back into the job.                                                      
                                                                                
I hope this helps.  Thanks for using ViewBlue.                                  
                                                                                
S e a r c h - k e y w o r d s:                                                  
psf/6000 psf/aix psf aix psfctl -b backspace micr jam recovery 3900             
4000 Troy                                                                       
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                               


WWQA: ITEM: RTA000148092 ITEM: RTA000148092
Dated: 01/1999 Category: XPSF6000
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