Section 3: Operation and Configuration
CG4 Series Operator Manual Page 3-17
3.9 HEX DUMP MODE
HEX Dump Mode allows you to print the contents of the receive buffer in a hexadecimal format. This feature
allows the data stream to be examined for errors and troubleshooting.
After selecting the HEX Dump Mode in Operation Setting Mode, restart the printer (refer to Section 3.5
Operation Setting Mode). The printer then awaits data feeds and when data arrives, it prints out the HEX
data continuously.
To exit the HEX Dump Mode, restart the printer by turning off the printer and then on again.
3.10 ERROR OCCURRENCE WHILE DOWNLOADING
The following are the possible causes of errors in program/font download.
(1) The flash ROM may be in a state that fails to permit data being written to it.
(2) Incorrect data are received while transferring downloaded data.
3.10.1 Operation Status when having an Error in Downloading Process
The ERROR indicator and buzzer response when having an error in downloading process are as follows.
Operation status
ON LINE (POWER)
indicator
ERROR
indicator
Buzzer
Flash ROM error
Off Red light
1 long beep sound
Download data error
Off Long blink interval
1 long beep sound
Caution
• DO NOT turn the printer OFF when data is transferring to the flash ROM in Program or Boot
Download mode, as it may corrupt the firmware and prevent the printer from starting up correctly.
• Ensure to check the printer status when downloading, and do not turn off the printer during
download.
• Ensure that the printer is running on a stable power supply during flash ROM writing operations.
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