HP Color LaserJet CM4730 Service Manual - Page 546

Table 6-2 Control-panel messages (continued) Control panel message Description Recommended action 30.01.22 A fatal hardware error has occurred in the scanner. 1. Ensure the MFP is connected to a working power source. 2. Ensure all connectors on the scan control board are firmly seated. 3. Ensure the flat cable from the formatter to the scanner is firmly seated. 4. Replace the scanner flatbed assembly. 30.01.23 A scanner calibration error has occurred. 1. Print a calibration target from the Diagnostics menu and calibrate the scanner. 2. If the error continues, replace the scanner flatbed assembly. 30.01.24 The ADF jam-access door is open. 1. Ensure the ADF jam-access door is closed. 2. If the error persists, ensure the sensor connector CN302 on the ADF intermediate PCB is firmly seated. 3. Ensure connectors CN301 on the ADF intermediate PCB and CN105 on the scan control board are firmly seated. 4. Replace the ADF assembly. 5. Replace the scan control board. 30.01.25 A general error has occurred in the scanner 1. Reseat the 256 MB memory DIMM on ADF. This error is most likely a memory the back side of the formatter. corruption error. 2. Replace the 256 MB memory DIMM on the back side of the formatter. 3. Replace the formatter. 30.01.29 The ADF output bin is full. 1. Remove all media from the ADF output bin. 2. If the message persists, ensure the sensor connector CN303 on the ADF intermediate PCB is firmly seated. 3. Ensure connectors CN301 on the ADF intermediate PCB and CN105 on the scan control board are firmly seated. 4. Replace the ADF assembly. 5. Replace the scan control board. 30.01.36 The scanning firmware upgrade failed. The MFP automatically tires to upgrade the firmware again the next time the MFP is power cycled. 1. Turn the MFP off and then on to try to clear the message. 2. If the error persists, resend the firmware upgrade. 3. If the error continues, replace the scan control board. 526 Chapter 6 Problem solving ENWW