I have HP laser color printer 2550, I purchased 128MB RAM I already installed the memory but is not working, what is the additional procedure that I have to do rather than what explained in the reference manual
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Most common cause of the error on this printer is the memory on the CPB (copy processing board) is bad. This board is picky about memory and typically only works with the actual HP memory designed for it. The easiest fix is to use the memory that is currently installed on the formatter, which is identical, and purchase 3rd party memory for the formatter, which will support any compatible memory.
Check that ALL of the covers / doors are closed completely. If they are not closed completely and securely, the safety switch will not close and the printer will not work - and displays the error. Since the error is "rear door jam" check the back of the printer...a door panel may have popped open while you were working on installing the memory.
first your printer connected to your PC and install the printer software for printing. After Installation you press the power button of your Printer, so your printer is on go for Printing Documents/Pictures.
Memory Upgrade for Dell Color Laser Printer
3100cn Printers, the Dell Color Laser Printer 3100cn Printers takes the
PC133 SDRAM SODIMMs Memory Type, and comes installed with 64 MB
(non-removable) of Memory. You can upgrade your Dell Color Laser
Printer 3100cn Printers to up to a maximum of 576 MB Memory, the system
has 1 socket to install Memory, already with 64 MB (non-removable)
standard Memory installed.
When installing new cartridges, it's always a great idea to perform a cleaning and recalibration of the machine. Below are the steps needed to do just such a task. You may want to print these out or save them somewhere for future reference as well. They are directly from the HP website.
Please rate the tip accordingly and thanks for using Fixya.com. Cleaning the printer
Verify the printer is turned on and in the Ready state.
Open the HP Color LaserJet 2500 Toolbox. Click Cleaning Page on the Troubleshooting tab, and the click Print (HP Color LaserJet 1500 or 2500) or Cleaning Page (HP Color LaserJet 2550). A page with a pattern prints from the printer.
Remove any paper that may be in tray 1.
Remove the page that printed and load it face down into tray 1.
At the computer, press Clean .
Calibrating the printer
There are two methods of calibrating the printer manual: at the printer or from the Toolbox on the computer.
From the printer
Turn the printer off and then on again.
From the HP Color LaserJet 1500 or 2500 Toolbox on the computer
Open the HP Color LaserJet 1500 or 2500 Toolbox in one of the following ways:
Double-click the HP Color LaserJet 1500 or 2500 Toolbox icon on the computer desktop.
Select Start , Programs , HP Color LaserJet 2500 , and then HP Color LaserJet 1500 or 2500 Toolbox to open the Toolbox from the Windows desktop.
Click Diagnostic Tools on the left side of the screen on the Troubleshooting tab.
Click Color Calibration to perform the calibration procedure.
From the HP Color LaserJet 2550 Toolbox on the computer
Open the HP Color LaserJet 2550 Toolbox in one of the following ways:
Double-click the HP Color LaserJet 2550 Toolbox icon on the computer desktop.
Select Start , Programs , Hewlett-PackardHP Color LaserJet 2550 series , and then HP LaserJet Toolbox to open the Toolbox from the Windows desktop.
Click Print Quality Tools on the left side of the screen on the Troubleshooting tab.
Click the Calibrate Now button to perform the calibration procedure.
We need to start with turning the machine on not connected to the computer.
Disconnect machine from computer.
turn machine on
if locks on memory count 128mb turn off.
If machine has a jetdirect card (network card I/O) installed remove it.
Turn machine on.
If it comes READY you found the problem.
If you are not using on network reconnect to computer and try again.
If there is no network card let me know.
hope this helps
Unplug the machine. On the right side of the machine you will find a cover. Remove the cover and you will find 1 open slot. The machine can take a total of 224MB (96 is built into the machine) leaving 128 available. The memory type is 100pin, 133MHz, SDRAM DIMM.
Simply click the memory into the blank slot and replace the cover.
Once completed, plug the machine back in and print a configuration page. The memory total should be at 224 once you have installed your 128MB.