SC No.  Level  Error Name/Error Condition/Major Cause/Solution 
557-00  D  Zero cross frequency exceeded 
When low frequency is detected once, this SC is issued. 
Power line noise 
Turn the power off and on. 
 
SC No.  Level  Error Name/Error Condition/Major Cause/Solution 
559-00  A  Fusing jam SC 
A fusing jam, which does not reach the paper exit sensor, is 
detected three times consecutively. 
  If paper exits normally (passes the paper exit sensor), the 
count will be cleared. 
  This detection is effective only when the setting of 
SP1-159-001 (Fusing jam 3 times SC setting) is set to “1 
(on)”. (Default: 0 (off)) 
  The fusing jam counter value is retained after turning the 
power off/on. 
  The fusing jam counter (internal counter) is reset when the 
setting of SP1-159-001 is changed from "1" to "0".   
  The fusing jam counter is reset when clearing this SC after 
SC559-00 has been issued. 
Paper winding around the fusing roller. 
  Replace the fusing unit. 
  Clear this SC by executing SP5-810-001.