![]() In order to unblock it, you can use the stored chip as a key which help you to unblock the printer.Īnd make sure that any other devices (except mouse and keyboard), which are connected to your computer via USB or LPT ports are disconnected. It’s preferable that the computer is connected to the 'UPS' (uninterruptible power source) device, because if during the reprogramming process the electricity source has any interruptions, then the reprogramming will be carried out with an error, which makes the device unable to work. If you have accidently inserted a new cartridge without removing the chip, the device will be blocked. In all cartridges which you are going to use in the printer, the chip has to be either removed or sealed. It is very important that under no circumstances should you remove the chip from the cartridge while reprogramming the firmware.After you have succesfully reprogrammed the printer, remove the chip from the cartridge and store it somewhere safely (the chip - a key). Additional info Before you continue with the reprogramming of the firmware, please make sure that the device is installed on your computer.
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