Service Call Conditions 
D017/D018/D019/D020 4-12  SM 
switched on. 
 
  An obstruction (jammed paper, paper scraps, etc.) has blocked the 
motor drive and caused an overload. 
  Paper lift sensor connection loose, disconnected, or damaged 
  Paper lift sensor defective 
  Tray lift motor connection loose, disconnected, or damaged 
  Tray lift motor defective 
 
506  B  Paper tray motor lock (optional Paper Tray Unit) 
 
A motor lock signal is not 
detected for more than 1.5 
s or the lock signal is not 
detected for more than 1.0 
s during rotation. 
  An obstruction (jammed paper, paper 
scraps, etc.) has blocked the motor drive 
and caused an overload. 
  Paper tray motor connection loose, 
disconnected, or damaged 
  Paper tray motor defective 
 
LCT rear fence drive error 
508 B 
The return position sensor is not activated after the rear fence drive motor 
has been on to lower the tandem tray for 8 seconds. 
 
  An obstruction (jammed paper, paper scraps, etc.) has jammed the rear 
fence or motor 
  Rear fence motor connection loose, disconnected, or damaged 
  Rear fence motor defective 
  Return position sensor connector loose, disconnected, or damaged 
  Return position sensor defective 
 
LCT side fence drive error 
509 B 
The side fence positioning sensor is not activated for more 3 seconds when 
the paper stack in the left tray is moved to the right tray. The side fence 
close sensor is not activated for more 3 seconds after moving the paper 
stack to the right tray.