• Code: 920.07
• Description: Service fuser error Sub lamp on-time error
• Remedy: 1 Check the fuser unit assembly for a media jam. Is there a media jam in the fuser unit assembly? Remove the media. Go to step 2. 2 Check the fuser unit assembly for proper installation. Is the fuser unit assembly installed properly? Go to step 3. Install the fuser unit assembly properly. 3 Check the fuser unit assembly for proper connection. Is the above component properly connected. Go to step 4. Repair the connection. 4 Perform a print test. Does the error continue? Replace the fuser unit assembly. Go to “Fuser unit assembly removal”. Go to step 5. Problem solved. 5 Perform a POR. Does the error occur when the power is turned off/on? Replace the AC drive card bracket assembly. Go to “AC drive card bracket assembly removal”. Problem solved.

• Code: 924.00
• Description: Service engine error Yellow toner RFID communication error
• Remedy: 1 Check the Y toner cartridge. Is the Y toner cartridge properly installed? Go to step 2. Reinstall the Y toner cartridge. 2 Check the sensor (Y toner RFID) for proper connection. Is the above component properly connected? Replace the CMYK toner add motor assembly. Go to “CMYK toner add motor assembly removal”. Replace the connection. 3 Perform a POR. Does the error occur when the power is turned off/on? Replace the upper printer engine card assembly. Go to “Upper printer engine card assembly removal”. Problem solved.

• Code: 924.01
• Description: Service engine error Magenta toner RFID communication error
• Remedy: 1 Check the M toner cartridge. Is the M toner cartridge properly installed? Go to step 2. Reinstall the M toner cartridge. 2 Check the sensor (M toner RFID) for proper connection. Is the above component properly connected? Replace the CMYK toner add motor assembly. Go to “CMYK toner add motor assembly removal”. Replace the connection. 3 Perform a POR. Does the error occur when the power is turned off/on? Replace the upper printer engine card assembly. Go to “Upper printer engine card assembly removal”. Problem solved.

• Code: 924.02
• Description: Service engine error Cyan toner RFID communication error
• Remedy: 1 Check the C toner cartridge. Is the C toner cartridge properly installed? Go to step 2. Reinstall the C toner cartridge. 2 Check the sensor (C toner RFID) for proper connection. Is the above component properly connected? Replace the CMYK toner add motor assembly. Go to “CMYK toner add motor assembly removal”. Replace the connection. 3 Perform a POR. Does the error occur when the power is turned off/on? Replace the upper printer engine card assembly. Go to “Upper printer engine card assembly removal”. Problem solved.

• Code: 924.03
• Description: Service engine error Black toner RFID communication error
• Remedy: 1 Check the K toner cartridge. Is the K toner cartridge properly installed? Go to step 2. Reinstall the K toner cartridge. 2 Check the sensor (Y toner RFID) for proper connection. Is the above component properly connected? Replace the CMYK toner add motor assembly. Go to “CMYK toner add motor assembly removal”. Replace the connection. 3 Perform a POR. Does the error occur when the power is turned off/on? Replace the upper printer engine card assembly. Go to “Upper printer engine card assembly removal”. Problem solved.

• Code: 925.00
• Description: Service PC cartridge Sensor (Y ATC)
• Remedy: 1 Reset the Y ATC failure lock out condition. 1. Enter diagnostic mode 2. Select Dev unit reset. 2. Select Y channel Perform a very large print test. Does the error continue? Go to step 2. Problem solved. 2 Check the sensor (Y ATC) for proper connection. Is the above component properly connected? Replace the Y developer unit assembly. Go to “Developer unit assembly removal”. Replace the connection. 3 Perform a very large print test. Does the error continue? Replace the upper printer engine card assembly. Go to “Upper printer engine card assembly removal”. Problem solved.

• Code: 925.01
• Description: Service PC cartridge Sensor (M ATC)
• Remedy: 1 Reset the M ATC failure lock out condition. 1. Enter diagnostic mode 2. Select Dev unit reset. 2. Select M channel Perform a very large print test. Does the error continue? Go to step 2. Problem solved. 2 Check the sensor (M ATC) for proper connection. Is the above component properly connected? Replace the M Developer unit assembly. Go to “Developer unit assembly removal”. Replace the connection. 3 Perform a very large print test. Does the error continue? Replace the upper printer engine card assembly. Go to “Upper printer engine card assembly removal”. Problem solved.

• Code: 925.02
• Description: Service PC cartridge Sensor (C ATC)
• Remedy: 1 Reset the C ATC failure lock out condition. 1. Enter diagnostic mode 2. Select Dev unit reset. 2. Select C channel Perform a very large print test. Does the error continue? Go to step 2. Problem solved. 2 Check the sensor (C ATC) for proper connection. Is the above component properly connected? Replace the C Developer unit assembly. Go to “Developer unit assembly removal”. Replace the connection. 3 Perform a very large print test. Does the error continue? Replace the upper printer engine card assembly. Go to “Upper printer engine card assembly removal”. Problem solved.