There could be several reasons for this issue. One of the most common causes is a broken drive on the toner cartridge, especially if you are using third-party toners . You can try removing the cartridge and looking at the right and side to see if there is a small metal shaft with tabs on it. If it is broken, you will need to replace the toner cartridge .
If the issue persists, you can try the following steps:
Turn off the printer and unplug it from the power source.
Open the front door of the printer and remove the toner cartridge.
Check the cartridge area for any jammed paper or debris and remove it.
Reinstall the toner cartridge and close the front door.
Plug the printer back in and turn it on.
If the problem still persists, you may need to contact HP support for further assistance .
Take the computer to a qualified technician, who can replace the keyboard, as the least-expensive "try" at trouble-shooting.
Since a keyboard transmits "codes" to the motherboard,
e.g., left-shift-has-been-pressed, and left-shift-has-been-released,
and the motherboard interprets those codes, it is NOT likely that
the motherboard is misinterpreting the codes, especially given that
the "bad' letters are in a straight line on your keyboard.
Find an external USB keyboard, and plug it in.
If it works correctly in the first 15 minutes, then the problem is NOT the motherboard.
On front of the note book, right hand side almost directly under the wireless light, if a switch. That switch turns the wifi on and off, make sure it is in the on position (to the right). If that fails look at device manager (control pannel, system), and make sure your wireless card is loaded. It will be listed under network adapters. If it is not, then it is likely that something has gone wrong with the wireless adapter its self.I hope this helps
Hello,
A couple of things to check.
1) Make sure the paper guides in the tray are adjusted correctly for width and in particular the length.
2) Remove the tray completely check guides.
3) Make sure the tray is fully seated into the printer.
4) Make sure the paper in the tray matches the size of the guides.
If the guides and paper seem OK, the printer may need servicing by authorized service center.
41.3 UNEXPECTED
SIZE IN TRAY [xx] alternates with LOAD TRAY
[xx]: [type] [size]Description
This is typically caused if two or more sheets
stick together in the printer or if the tray is not properly
adjusted.
On encountering offline printer error, users often wonder why does my HP printer keep going offline. Well, there are various reasons why it happens. Some of the prominent causes for printer offline issues include jammed paper, faulty cable or connection, enabled offline mode, outdated firmware, and out-of-date drivers. To fix the HP printer offline error, first, check if there are ink cartridge or paper jam issues. If yes, resolve it quickly. Next, try using another cable to establish connections. Make sure to set your printer manually to online mode from the offline mode, update your firmware and HP printer driver.
There are plastic clips to hold the keyboard. With a suitable flat screwdriver, you can open it. You can damage the plastic body if use force to open it.
If you use an HP printer, you might sometimes encounter offline error issues. If you want to know why HP Printer offline, how to fix it? Then follow this post. The offline error can be due to outdated drivers, connection issues, or a settings error. To solve this issue, first, ensure that you have downloaded and installed all of the updates for the Windows OS and check you have set your printer as a default printer, and check whether the device connection is made properly.
https://connectmyprinter.com/how-to-fix-hp-printer-offline-error/
49.XX.XXExplanation:
A critical firmware error occurred.
49 errors are unrecoverable exception errors in product firmware. When a 49 error occurs, the user sees a 49.XX.XX message on the control panel (where XX.XX is replaced by a combination of numbers and letters). A 49 error might happen at any time for multiple reasons. Although some types of 49 errors can be caused by hardware failures, it is more common for 49 errors to be caused by printing a specific document or performing some task on the product than it is for a hardware component to be at fault.
Most commonly, 49 errors occur when a product is asked to perform an action that the product firmware is not capable of and might not have been designed to comply with, such as:
· Printing files with unsupported programming commands.
· A unique combination of user environment and user interactions with the product.
· Interfacing with a third-party solution that was not designed to work with the product.
· Specific timing, network traffic, or concurrent processing of jobs.
Each of these interactions could cause the product firmware to initiate an action that the product cannot accomplish. In situations like this, the product might present the error if it has no other option. When these errors occur, the only way to recover is to turn the products power off and back on.
NOTE: LaserJet formatter PCA's are rarely the root cause of 49 service errors. Please do not replace the formatter or Flash unless troubleshooting has identified the formatter as the root cause.
I suggest that you try to upgrade your printer's firmware and then try doing a FULL NVRAM Initialization .
THIS TYPE OF PROBLEMS ARE FIND GENERALLY IN LAPTOPS AFTER A TIME IF YOUR LAPTOP IN GURANTEE PERIOD THEN . TAKE IT TO THE HP CARE & IS NOT THEN GO TO HP OFFICE & BUY A NEW BATTERY OF YOUR MODEL NO...........
