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Fix blank LCD while err. Load to Extr. Failed 

Because this error is not an MMU error but a printer one, the existing infrastructure has been bent to support such a scenario.
During testing it turned out, that some machines fail to draw the error screen due to previous internal states.
This PR resets the internal states so that the conditions for drawing the error screen are met.
This commit is contained in:
D.R.racer 2023-01-06 08:22:07 +01:00 committed by DRracer
parent 4f177f0b38
commit 48ce22d41f
1 changed files with 3 additions and 1 deletions
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4
Firmware/mmu2.cpp
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@ -301,7 +301,7 @@ bool MMU2::ToolChangeCommonOnce(uint8_t slot){
return true; // success
} else { // Prepare a retry attempt
unload();
if( retries == 1 && eeprom_read_byte((uint8_t*)EEPROM_MMU_CUTTER_ENABLED) == EEPROM_MMU_CUTTER_ENABLED_enabled){
if( retries == 2 && eeprom_read_byte((uint8_t*)EEPROM_MMU_CUTTER_ENABLED) == EEPROM_MMU_CUTTER_ENABLED_enabled){
cut_filament(slot); // try cutting filament tip at the last attempt
}
}
@ -684,6 +684,8 @@ void MMU2::CheckUserInput(){
// we'll actually wait for it automagically in manage_response and after it finishes correctly,
// we'll issue another command (like toolchange)
logic.ClearPrinterError();
lastErrorCode = ErrorCode::OK;
lastErrorSource = ErrorSourceNone; // this seems to help clearing the error screen
}
ResumeHotendTemp(); // Recover the hotend temp before we attempt to do anything else...