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Updated by sean37310 on Oct 23, 2019
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sean37310 sean37310
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What should I do if the printer is offline?

Listly by sean37310

  1. Open the Start menu, select Settings, tap Devices in Settings, and select Offline Printers.
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  2. Click Manage, click Printer Properties, in the properties, click Advanced.
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  3. Click on the new driver and update the driver, the offline printer will be recognized by the system.
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1

Check if the hardware is normal

Method: The printer only leaves one power cord, restarts the printer, and after the printer is "ready", prints the configuration page or whether the test copy is normal.
If the printer is not "ready", there is a flashing light or an error on the screen, or the configuration page cannot be printed, you need to contact HP manual customer service directly.
If the configuration page can be printed or the copy is normal, you can troubleshoot the printer hardware and proceed to step 2

2

Check if the computer and printer are connected properly.

USB connection troubleshooting steps:
(If it is a usb connection, make sure that the usb line is less than 2 meters long. If it is a notebook, please avoid connecting it to the USB expansion interface. If it is convenient, it is recommended to replace the desktop, use the desktop rear USB port test)
Device Manager check method:
A, computer desktop selection This computer icon, right click point management, find device manager
Find out if there is USB printing support under Universal Serial Bus controller

3

If there is no print support, you need to re-plug the USB to see if it can be recognized.

If it is not recognized, you need to replace the USB cable test.
B. If there is no USB printing support, but it is recognized as a DOT4 port, it will appear in the option of IEEE1284.4 compatible printer. You can try to update the USB printing support.

4

method:

Update DOT4 USB Printing Support in Device Manager - IEEE1284.4 devices

5

If the "Device Manager" IEEE1284.4 devices "does not have "DOT4 USB Printing Support",

first update the "HP LaserJet xxxx (DOT4USB)" in the "Universal Serial Center Controller"

6

If the Device Manager - IEEE1284.4 devices does not have DOT4 USB Printing Support and the Universal Serial Line Cont...

update the HP LaserJet xxxx (DOT4USB) directly.

7

Network connection troubleshooting steps:

Is the network cable on the back of the printer plugged in, and the network port light is normal (green light is always on, yellow is blinking)
If the NIC light is off, try to re-plug the network cable or replace the network cable test.
If the NIC light is not working properly, try unplugging the network cable and then restoring the factory settings.
If the NIC light is normal, print the configuration report to check the NIC status and ip address.

8

If the NIC light is normal, print the configuration report to check the NIC status and ip address.

If the NIC light is normal, print the configuration report to check the NIC status and ip address.
If the NIC status display is initialized, a NIC reset is required.