April 15, 2010Symptom: When printing B/W to the machine bypassing the PCL driver from dos or other software and User Authentication is on the print job will not come out. Cause: By default the machine will treat print jobs with no Username and Password as a print from the Guest account which only has B/W permissions. When the driver is bypassed it treats the job as color.Solution: Enabling Black & White Printing While Requiring Account Codes For Color on Sharp MFPs