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Thursday, 2 June 2016

RFU Load Error Resend RFU Message on HP Color LaserJet 5550 5550N 5550DN

An RFU file is a Remote Firmware Update file.  If you see error messages like this -- "RFU Load Error" or "Resend RFU" -- it means there is something wrong with the firmware, and usually refers to the fact that a firmware update was not successful. 
As a side note, in general we don't see much value in firmware updates and we recommend end users do not perform firmware updates unless absolutely necessary.  It's rare that firmware updates actually solve problems,  and during the update, the file transfer can actually fail which leaves you with error messages like this. So we  recommend you avoid firmware updates unless an experienced printer tech advises you that it is absolutely necessary.

Wednesday, 27 April 2016

What causes paper curl in laser printers?

Here is what HP suggests along with a few of our suggestions to solve problems with paper curl:

  • Change the fuser mode (fuser temperature). Many HP Laserjets have the ability to lower the fuser temperature. Consult your user’s manual.
  • Store paper in a drier environment. Paper reams generally have a moisture-proof barrier on the inside of the wrapper. Keep the paper sealed until you need it.
  • Buy paper from a different vendor or a different manufacturer.
  • Print out of a different output bin on the printer, for example a side, top, or rear output bin.
  • Flip the paper stack over in the tray or turn 180 degrees.
  • Use long-grain paper. You may be using paper with a short grain construction, or the grain might be in the wrong direction.

Sunday, 6 March 2016

Troubleshooting Microsoft Technologies

  Many IT professionals have long considered the practice of troubleshooting to be more of an art than a science. However, with the right methodology, anyone can systematically analyze and repair problems affecting an individual computer or an entire network. All it requires is an understanding of the technologies involved, knowledge of the available tools, and insight into the most common system and application issues.

Troubleshooting Microsoft Technologies is the first complete guide to troubleshooting the vast interrelationships of Microsoft network technologies. This book begins by introducing readers to the fundamentals of networks and troubleshooting. After documenting the available Microsoft troubleshooting tools, the author then attacks technology-specific problems chapter by chapter. A concise technical introduction at the outset of each chapter quickly brings readers up to speed on the technologies involved.

Monday, 15 February 2016

Tattoo Serial Number PC HP Compaq 6005 Pro MT

how to change serial number when system board is replaced
Here is what you need to do :
  1. Enter the BIOS | Press F10.
  2. Go to the Security Tab
  3. Navigate to the menu option "System IDs" and press Ctrl + A.
  4. Press Enter.
  5. Enter New Serial Number on the menu "Enter Chassis Serial #" and "Enter Asset Tag" and then press F10 to save.
  6. Finish
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