HP Color LaserJet CM4730 HP Color LaserJet CM4730 MFP - User Guide - Page 240
Determining MFP problems, Situation/Message, Solution
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Determining MFP problems Situation/Message Solution The control-panel display is blank, and internal fans are not running. The MFP is turned on, but the internal fans are not running. The MFP voltage is not correct. Messages appear on the control-panel display. Print media is jammed in the MFP. Make sure that the MFP power is on. Press all the keys to see if one is stuck. Contact your HP-authorized service representative if these steps do not work. Make sure that the line voltage is correct for the MFP power configuration. (See the label that is inside the top cover on the MFP for voltage requirements.) If you are using a power strip and its voltage is not within specification, plug the MFP directly into the power receptacle. Make sure that the line voltage is in the correct range. (See the label that is inside the top cover on the MFP for voltage requirements.) See Electrical specifications. Check for jams. For more information, see Jams. The control-panel display shows the wrong language or unfamiliar characters. Reconfigure the control-panel display language. 1. Turn the MFP off and then on. 2. When XXX MB appears on the control-panel display, press and hold 6 until all three LEDs flash once and then stay on. (This might take up to 20 seconds. 3. Release 6 and then press 6 again. An error occurs during a Digital Send job. Job failed. The e-mail gateway could not accept the job because the attachment is too large. 4. Wait while the MFP completes its initialization sequence. When it is finished, the Select a Language menu appears on the control-panel display. Scroll to and touch the correct language. The MFP experienced an error during the digital sending job. The administrator should check on the status of the SMTP server. See Solve e-mail problems. Reduce the size of the e-mail attachment by setting the maximum attachment size. Set the maximum attachment size on the Digital Sending tab of the embedded Web server. See Embedded Web server. A network connection is required for digital sending Try using a different file format or sending the document a few pages at a time. The MFP cannot find a network connection. The administrator should check to see if the MFP is connected to the network. See Solve network connectivity problems. 224 Chapter 16 Problem solving ENWW