Operator`s manual
82  I-Class 
5.7.3  Possible Problems 
The following is list of possible error messages when downloading updates: 
Application Update Error Messages 
Displayed Message  Descriptions / Causes / Solutions 
DECOMPRESSION ERROR 
The printer detected an error during the decompression and 
transfer of file data from cache storage into the Flash 
memory. Confirm the version and retry in Download Mode; 
however, if the problem continues call for service. 
ERROR ERASING FLASH 
The printer could not successfully erase Flash memory. The 
possible cause is defective Flash memory. Try the download 
again; however, if the problem continues call for service. 
ERROR WRITING FLASH 
The printer could not successfully write the program into 
Flash memory. A possible cause is defective Flash memory. 
Try the download again; however, if the problem continues 
call for service. 
HARDWARE MISMATCH 
DATA REJECTED 
Application downloaded was not compatible with the main 
logic card. The firmware used was for a different class model 
and not supported by this Boot Loader version (see 
CONFIGURATION LEVEL / PRINTER KEY, Section 4.2.5). 
INVALID SOFTWARE
DATA REJECTED 
The printer detected an error. The possible causes include: 
•   An invalid or corrupted file was downloading – try saving 
the file to the host and then download again. 
•   A communications error occurred – recheck cabling and 
port setting. 
SOFTWARE MISMATCH 
DATA REJECTED 
Software level not authorized for this printer (see 
CONFIGURATION LEVEL / PRINTER KEY, Section 4.2.5). 
 Notes:  If experiencing trouble when attempting to download the file to the printer, try 
the following alternate methods: 
 1)  Use the Download Mode (see Section 5.7.2). 
 2)  Windows
 users – try restarting the computer in MS-DOS mode. 
 3)  Use the Datamax-O’Neil Driver by Seagull Scientific™ – Device Setting / 
 Send File  to Printer function. 










