Troubleshooting - HP LaserJet Pro MFP M28 Referenzhandbuch

Control Panel Light Patterns
Ready
Cartridge error
Mobile printing (Wireless models only)
Learn more about mobile printing
The product supports AirPrint and
Wi-Fi Direct. For more mobile printing
information, scan the QR code or go to
www.hp.com/go/LaserJetMobilePrinting.
NOTE: To use Wi-Fi Direct, make sure it is enabled. To check Wi-Fi Direct
name and password (pin), print a configuration report by pressing and holding
the Start Copy button until the Ready
release the button.

Troubleshooting

User guide
The user guide includes printer usage and troubleshooting information. Go to www.hp.com/support/ljM28MFP.
Wireless connection setup troubleshooting
NOTE: Only 2.4 GHz band is supported.
Verify that the printer is within the range of the wireless network. For most networks, the printer must be within 30 m (100 ft) of the wireless access point
(wireless router). A USB cable might be required for temporary connection between the printer and the computer. To ensure that the wireless setup information
synchronizes correctly, do not connect the USB cable until prompted to do so.
Follow these steps to restore the network settings:
1. Remove the USB cable from the printer.
2. Press and hold the Wireless
3. When the Attention LED and the Power
4. When the Ready LED is on, continue to install the software.
Processing
Cartridge Very Low
LED starts blinking, and then
button on the printer control panel for 20 seconds.
LED start blinking together, release the Wireless
Initialization/Cleaning/Cooling down
Error/Manual Feed/Manual Duplex/Out of paper
Use the scan feature
Windows
Open HP Printer Assistant, select Scan, and then select Scan a Document
or Photo.
OS X
Click Applications, select HP, and then select HP Easy Scan.
Readiris Pro for HP
Go to www.hp.com/support/ljM28MFP
enable extra scanning features, including Optical Character Recognition (OCR).
button. The printer restarts automatically.
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