Lexmark T522 Service Manual - Page 38

4520-xxx First 6 Bytes Sub Error Code Data - Note: xx can be any value. Explanation 84 xx 02 x1 84 xx 04 84 xx 05 84 00 06 84 00 07 84 xx 0B x1 x2 x3 This error is the most common type of paper jam. Possible causes are (x1=media size): *Multi sheet feeding. *A tray size sensing problem. *The media feeding from the paper source is slipping or media is slipping in input to the printer. The input sensor was covered during POST by a piece of media still in the machine when it was turned on. *Clear the media from the printer. *Run the base sensor test (input sensor) from the diagnostic tests menu to test the input sensor and flag for correct operation. There was a media at the input sensor too early. There was not enough time between printhead start and the printhead mirror motor to lock. Possible causes for this error are: *Paper might be pre-staged in the paper source tray. *Paper is picking too fast. *A defective input sensor. A paper jam has been declared by a smart device. Immediate stop homing not allowed. A paper jam has been declared by a smart device. Homing was allowed before the stop. The option tray pass thru sensor was never actuated by a piece of media. (x-1=media size) (x-2=media source) (x3=paper source where paper jam was detected) *Run the sensor test for the option tray that is displaying the error code and check the pass thru sensor for that tray for correct operation. *Check for paper picking from the selected paper input source. *If the error is being detected from a lower paper source, see if paper is feeding correctly from a paper source above the detected source. 2-10 Service Manual