Mutoh D22224C printer mainboard

Mutoh D22224C is the main control board used in VJ‑1204/1304/1604 large‑format ValueJet printers, housing the PLC and motor drive logic that governs printhead positioning and carriage motion. Common failure points on this class of boards include burnt or tripped fuses, damaged power input circuitry, degraded signal traces to the carriage driver, and failed I/O relays that interrupt communication with the printer’s control panel. First‑check diagnostics: verify 24 V DC supply voltage at the board’s power pins; inspect all fuses and replace any blown ones; perform a continuity test on the motor drive outputs and check for shorts or opens in the carriage driver traces.[oss-gpt-20b]

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