Question about HP DeskJet 3745 Printer

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Flashing power light

The power light keeps on flashing and the computer says it cannot establish communication with the device

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  • sharannjoe Jun 23, 2008

    Printer light keeps blinking and cannot cancel print job. Cartridges keep going back and forth, jerking and stopping finally at far right. Have put in new cartridges. Cannot shut off light unless I pull power cord. We are at a loss. Anyone have same or similar problem? We have taken cartridges out and redone them. Have shut computer and printer down and redone all but to no avail. Thanks for any ideas.

  • jhilma Feb 14, 2009

    the light keeps flashing.

    message "USB device not recognised. One of the USB devices attached to this computerhas malfunctioned and Windows does not recognise it"

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  • 107 Answers

Hi ,
if u r printer light flashing continuously then please check u r printer with ok cartridge becoz it should be problem with black or color cartridge or both


if this information is useful for u please Rate me.....................

Posted on Jun 15, 2008

  • Techpoint
    Techpoint Jun 22, 2008

    Hi,

    friend u r not Rate me for this solution for long time .if u resolve problem please Rate me......

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1 Answer

Wifi light is orange


The colors of the WiFi indicator light show the network status of the printer.
  • Off means one of the following:
    • The printer is turned off or is powering up.
    • The printer is not connected to a wireless network and in power saver mode. In power saver mode, the power light pulses on and off.
    • The printer is connected to an ethernet network. Refer to the Quick Reference Guide to find out if your printer has ethernet capability.
  • Solid orange means one of the following:
    • The printer has not yet been configured for a wireless network.
    • The printer is configured for an ad hoc connection, but it is not currently communicating with another ad hoc device.
  • Blinking orange on the WiFi light means one of the following:
    • The printer is out of the range of the wireless access point (wireless router).
    • The printer is trying to communicate with the wireless access point but the wireless point is turned off or not working properly.
    • Either the configured printer of the wireless access point has been turned off and back on, or the printer is trying to establish communications with the network.
    • The wireless settings of the printer may no longer be valid.
  • Green means that the printer is connected to a wireless network and is ready for use.

Feb 02, 2012 | Lexmark Z Printers & Copiers

1 Answer

I have a HP photosmart C4340 and its suddenly stopped printing documents in microsoft word. It says windows cannot print due to a problem with the printer set up. My printer is installed correctly and is...


Reboot the computer with the printer powered on (do not shut it off). Sometimes communication between the printer and computer gets disrupted - sometimes one or the other is turned off and vice versa. By rebooting, the communication should re-establish. If it fails after re-boot, check the device manager for the status of the printer driver.

Feb 01, 2011 | HP Printers & Copiers

1 Answer

All the lights on the printer are flashing off and on, the message it gives is turn it off and on. I did that and the whole thing starts over again. also my computer no longer recognizes my printer.


Re-initialize the HP all-in-one

Force the HP all-in-one to reinitialize by following the steps below:

1. Turn the unit off by pressing the ON button.

2. Disconnect the power cord.

3. Wait five seconds, then reconnect the power cord.

4. but before plugging the unit back in, press and hold the # and 6 keys on the HP all-in-one numeric keypad. Continue to hold these keys down for a few seconds after plugging the unit back in to reset it. Once the all-in-one re-establishes communication with the computer, reset the language and country.


If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response. Happy Holidays!

Thanks, Joe

Dec 29, 2010 | HP OfficeJet 7110 All-In-One Thermal...

2 Answers

I lost my manual and my scanner keeps saying it's not connected but everything is plugged in...help?


Hi,

It seems that scanner drivers are unable to establish communication with the scanner hardware. Please try the below steps to reload the communication drivers.

1. Click start ->Run.
2. In the Run window, type "devmgmt.msc" (without quotes), click OK.
3. Device Manager Window will pop out, in this screen at the bottom you will see "Universal Serial Bus Controllers"
4. Click on the(+) sign next to "Universal Serial Bus Controllers" and look for "USB Composite Device".
5. Right click on "USB Composite Device" and select Uninstall.(Read Note)
6. After the the device is uninstalled, disconnect the USB cable from the back of the computer.
7. Restart the computer, after the system is booted plugin the USB cable.
8. You may need to wait for sometime for the device installation to get complete.
9 . Then try to scan.

Note: Before uninstalling the "USB Composite Device" right click on it and select properties to confirm whether that driver is for the printer.


Thanks & Regards,
Riztech

Jun 16, 2010 | HP Officejet 5610 All-In-One InkJet...

1 Answer

Lost communication of hp printer to our pc


It is a power problem Check all cables to ensure they are plugged and snug. Also, you may turn off both computer and printer. Unplug all cables to inlude USB cable to PC. Boot up PC to ensure all ports are in power and then turn on printer.

Please rate this solution.

Jan 08, 2009 | Lexmark X6170 All-In-One InkJet Printer

1 Answer

Unable to establish two-way communication error


What kind of cable is being used to communicate?

Nov 24, 2008 | Lexmark X2500 All-In-One Printer

1 Answer

Unable to establish two-way communication error


1)right click the my computer icon
2)click properties and then click hardware n go to device manager.
3)uninstall all usb ports and then scan for hardware changes
4)ur pc will detect your printer and ask for printer drivers
5)re load drivers and your pc will communicate with your printer
6)for reloding install the cd follow the instructions on the screen and click next
7)restart when the printer is loded.connect the wires and cords properly.

Nov 14, 2008 | HP Photosmart C6180 All-In-One InkJet...

1 Answer

Lexmark 1200 Series


unplug your usb cable,uninstall printer then reinstall

Nov 09, 2008 | Lexmark X1270 All-In-One InkJet Printer

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