Croma24 Service Manual
The latest firmware version was included and installed onto the computer during the installation process. To upgrade the firm- ware on the printer, open the Control Panel with the printer online. During the initial start up of the Control Panel, it commu- nicates with the printer’s firmware. The Control Panel is collect- ing information stored on the printer such as current ink levels and the firmware version. If the Control Panel finds an older version of firmware, it automatically installs the latest version that is stored on the computer.
This communication between the Control Panel and the printer happens every time that the Control panel is opened.
NOTE
The printer’s firmware will revert back to version 1 (the original version) if power is removed from the printer for any reason.
To assure that the latest version is loaded onto the printer, it is a good practice to run a “Prime” every morning that the printer is to be used. This forces the user to open the Control Panel, which verifies that the latest version of firmware is loaded.
It also helps the cartridges to purge any possible obtructions within the jets before clogging begins by firing all the jets for a period of time.
Internal Cabling and Signal Flow Diagram
Figure 3-36 is a schematic of the major components and the cabling associated between them. The diagram depicts component boards or assemblies, jack connections, cables, and signal flow. It is to be used by the technician as an additional aid in trouble- shooting and improve understanding of the printer theory of operation.
MAINTENANCE
