The is typically associated with a communication failure , often occurring when the printer's image processing board (image controller) or firmware experiences a "watchdog" malfunction. According to user discussions on Reddit regarding Konica Minolta error 9903 , this code may show up when the machine is attempting to process complex print jobs or during the initial startup phase (pre-ready stage).
The most common fix is simply clearing the jam thoroughly.
: Internal sensors expect paper or image data to pass points at precise intervals. A delayed sensor flag triggers a "99 jam".
: Older firmware versions may lack the necessary protocols to handle modern document data, leading to internal timing or processing failures. konica minolta code 9903
The (often appearing alongside 9913) is a general system error that typically indicates a timing issue or a data processing conflict rather than a specific hardware failure. Common Causes
Turn the main power switch OFF (usually located inside the front door), wait 10 seconds, and turn it back ON . This can often clear temporary software glitches.
: Ensure the printer firmware is up to date (version G00-RF or newer is often recommended for these models) and that you are using the correct print driver on your computer. The is typically associated with a communication failure
Malfunctioning IDC sensors, drums, or transfer belts.
: Open and firmly close the front door of the machine to trigger a re-check. Check Paper Path
: Using outdated or incorrect printer drivers can cause the machine to "hang" and throw a 99-series error. : Internal sensors expect paper or image data
Quickly press the following sequence immediately after power-up: (timing is critical).
: Dirty or misaligned sensors, or "actuators" that don't move smoothly, can interrupt the timing sequence the controller expects.
Konica Minolta releases frequent firmware updates to fix timing bugs. If you recently upgraded firmware on the MFP board but not the video board (or vice versa), version mismatch can cause C-9903. Also, a sudden power loss during firmware write can corrupt the video control logic.