Xerox C2424 Service Manual - Page 103
XX.4x Errors - Process Control System Fault
UPC - 095205676532
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4,0XX.4x Errors - Process Control System Fault 4,017.47: This fault code indicates a problem with the process control system. The ambient temperature is considered too cold to warm up the system. (less than 10o C). 4,018.48: This fault code indicates a problem with the process control system. The printhead temperature dropped below the head cleaning needed threshold. 4,020.41: This fault code indicates a problem with the process control system. Declared when the printer is booted in FTTR (Fast Time to Ready) mode and the head/cap contact flag is set in NVRAM. The printer cannot run in FTTR mode with head/cap in contact because it would be unwise to separate the two when cold (could tear wiper.) Service requested that this be a device fault in order to alert the service person to this condition. 4,021.42: This fault code indicates a problem with the process control system. Declared when the printer is booted in FTTR mode and the drum is dirty. Cleaning the drum when very cold could increase the chance of gluing media to the drum surface and creating an ungly mess around the stripper fingers. Service requested that this be a device fault in order to alert the service person to this condition . Troubleshooting Procedure Step Questions and Actions Yes 1 1. Verify the temperature of the room where the Complete. system is located (see "System Environmental Specifications" on page 1-14) is operating within specification. 2. Is the room temperature too cold for proper operation of the sytem? 3. Ensure the printer is acclimated to the room temperature. 4. Did this correct the problem? 2 1. Run the Monitor Heaters tests with all heaters ON. 2. Are the heaters operating correctly and within specification? Replace the electronics module. 3 1. Inspect the wiring harness to the failed heater. 2. Is the wiring harness damaged or not working properly? Replace the wiring harness to the failed heater. No Go to Step 2. Go to Step 3. Replace the problem component. Error Messages and Codes 3-11