• Code: 109.07
• Description: Service Black Printhead
  The black printhead thermistor is shorted to ground.
• Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable at JMIRR1 for proper connection to the controller board, the printhead cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
  2 Turn the printer on, and then wait until the printer posts an error. Using a voltmeter, check the following values at JMIRR1: Are the values approximately correct? Replace the controller board See “Controller board removal”. Replace the printhead. See “Printhead removal”.

• Code: 109.08
• Description: Service Black Printhead
  The black laser showed bad in testing.
• Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable at JMIRR1 for proper connection to the controller board, the printhead cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
  2 Turn the printer on, and then wait until the printer posts an error. Using a voltmeter, check the following values at JMIRR1: Are the values approximately correct? Replace the controller board See “Controller board removal”. Replace the printhead. See “Printhead removal”.

• Code: 109.09
• Description: Service Black Printhead
  SOS/EOS measurement did notcomplete.
• Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable at JMIRR1 for proper connection to the controller board, the printhead cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
  2 Turn the printer on, and then wait until the printer posts an error. Using a voltmeter, check the following values at JMIRR1: Are the values approximately correct? Replace the controller board See “Controller board removal”. Replace the printhead. See “Printhead removal”.

• Code: 109.10
• Description: Service Black Printhead
  Bad SOS/EOS measurement.
• Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable at JMIRR1 for proper connection to the controller board, the printhead cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
  2 Turn the printer on, and then wait until the printer posts an error. Using a voltmeter, check the following values at JMIRR1: Are the values approximately correct? Replace the controller board See “Controller board removal”. Replace the printhead. See “Printhead removal”.

• Code: 109.11
• Description: Service Black Printhead
  Failure writing data tot he printhead.
• Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable at JMIRR1 for proper connection to the controller board, the printhead cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
  2 Turn the printer on, and then wait until the printer posts an error. Using a voltmeter, check the following values at JMIRR1: Are the values approximately correct? Replace the controller board See “Controller board removal”. Replace the printhead. See “Printhead removal”.

• Code: 109.12
• Description: Service Black Printhead
  Failure reading data from the printhead.
• Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable at JMIRR1 for proper connection to the controller board, the printhead cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
  2 Turn the printer on, and then wait until the printer posts an error. Using a voltmeter, check the following values at JMIRR1: Are the values approximately correct? Replace the controller board See “Controller board removal”. Replace the printhead. See “Printhead removal”.

• Code: 109.13
• Description: Service Black Printhead
  Printhead declared error.
• Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable at JMIRR1 for proper connection to the controller board, the printhead cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
  2 Turn the printer on, and then wait until the printer posts an error. Using a voltmeter, check the following values at JMIRR1: Are the values approximately correct? Replace the controller board See “Controller board removal”. Replace the printhead. See “Printhead removal”.

• Code: 109.xx
• Description: Service Black Printhead
  Black printhead error.
• Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable at JMIRR1 for proper connection to the controller board, the printhead cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
  2 Turn the printer on, and then wait until the printer posts an error. Using a voltmeter, check the following values at JMIRR1: Are the values approximately correct? Replace the controller board See “Controller board removal”. Replace the printhead. See “Printhead removal”.