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4.  PEN FAILURE ANALYSIS 
 
4.1  Trouble Shooting Guide 
There are several things that can be done to recover damaged cartridges.  The 
following list acts to troubleshoot any problems that may appear.   
 
Problem   Example  Action 
 
Cartridge will not print 
 
 
“Sheet is blank even after it 
has gone underneath 
cartridge(s).” 
 
?  Check to make sure the 
tape is off of the 
printhead  
?  Re-insert the cartridge 
into the carriage 
?  Install a new print 
cartridge 
White streaks in text or 
graphics 
 
 
 
?  Re-insert the cartridge 
into the carriage  
?  Wet wipe and purge the 
cartridge (There are 
clogged nozzles.) 
?  Clean the interconnects  
?  Insert a new print 
cartridge