Canon LASER CLASS 730i Service Manual page 201

LASER CLASS 730i/720i/710 Chapter 4: Maintenance and Service
Guide to an error history
*1 : Error history
*2 : Sequence of errors (higher, more recent)
*3 : Date of occurrence
*4 : Time of occurrence
*5 : Approximate location (3: machine; 5: finisher)
*6 : Error code (in 8 digits, with rightmost 3 indicating the code on the LCD)
*7 : Total counter (6 digits)
*1
*2 *3 *4
Figure 4-62 Jam/Err Log Report (Err)
4-118
*5 *6 *7