Lexmark T620 Service Manual - Page 39

4069-5XX/7XX First 6 Bytes Sub Error Code Data - Note: xx can be any value. Explanation 84 xx 02 x1 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. 84 xx 04 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. 84 xx 05 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. 84 00 06 A paper jam has been declared by a smart device. Immediate stop homing not allowed. 84 00 07 A paper jam has been declared by a smart device. Homing was allowed before the stop. 84 xx 0B x1 x2 x3 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. Diagnostic Information 2-11