Specifications
Fault Messages
205
Half Speed Mode Yes The printhead is 
approaching a hot 
state. Half Speed Mode 
helps the cooling 
process and should 
permit completion of 
print jobs.
Half Speed Mode helps 
prevent a PRINT HEAD 
HOT fault, which will 
stop the printer.
1. Allow printer to continue 
printing. Full speed will 
resume automatically 
when a lower printhead 
temperature is achieved.
2. Let the printer cool 
down. Full speed will be 
restored when printing is 
resumed.
3. Lower Print Intensity and 
Print Speed to reduce 
frequency of Half Speed 
Mode.
ILL NVM VALUE 5 
ILL NVM VALUE 6 
ILL NVM VALUE 7
Yes Printer firmware code 
error.
1. Cycle Power. Run the 
print job again. If the 
message appears, load 
the latest emulation 
software.
2. Cycle power. Run the 
print job again. If the 
message appears, 
record the display 
message and follow the 
instructions on 
page 186
3. Contact your authorized 
customer service 
representative.
INVALID EMC
Power off Printer 
Remove Cartridge
Yes The QCMC is not 
compatible with the 
software in the printer.
Upgrade printer software.
INVALID FILE SYS 
Optimize&Reboot
Yes File system not 
detected or flash was 
corrupted.
Enter the PRINTER SETUP 
menu and use the Optimize 
& Reboot option.
Table 15. Fault Messages
Displayed Message
Can User 
Correct?
Explanation Solution










