Large MS Excel files with multiple worksheets or variable data can occasionally trigger "99" series internal errors.
Using an incorrect or corrupted PCL/PostScript driver on the computer sending the job. konica minolta code 9903
Many 99-series errors are resolved through official manufacturer updates. Check your MFP's current firmware version. Large MS Excel files with multiple worksheets or
Sometimes a temporary glitch causes the error. wait for at least 30 seconds
Turn the main power switch , wait for at least 30 seconds , and turn it back ON . This can clear temporary processing glitches. 2. Perform a "Trouble Reset"
Unlike specific hardware failures (like a motor or fuser), a is generally a timing-related paper jam error