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Perform the following troubleshooting in the order listed:
Turn off the printer, with the communication cable still attached.
Clear the print spooler by doing the following:
Go to Start then choose Run .
Type net stop spooler , and press Enter .
The Windows XP spool directory is located at: C:\WINDOWS\SYSTEM32\SPOOL\PRINTER ; Delete every file within this folder.
Go to Start , then Run , and type net start spooler , and press Enter .
Manually delete and reinstall the driver:
To uninstall printer driver, refer to the following steps:
Open Printers folder and right click the driver that you wish to delete.
Within the menu, select Remove .
For the confirmation message displayed, click Yes .
Right click the Printer Folder and select Server Property .
Click Drivers tab, and select the driver for deletion. Click Remove .
For the confirmation message for the deletion, click Yes .
Install the printer driver manually as follows:
Select the Printers and Faxes option from the Start menu.
Click "Add a printer" then, on the resulting "Add Printer Wizard" dialog, click Next.
Ensure the option "Local printer attached to this computer" is selected. Untick the checkbox "Automatically detect and install my Plug and Play printer". Click Next.
Ensure that the option "Use the following port:" is selected then select the appropriate port from the drop-down choice box. When choosing port, use one of Virtual Printer Ports for USB to which is your printer connected to. Click Next.
Click the "Have Disk..." button. On the "Install From Disk" dialog, click Browse... then navigate to the appropriate directory to which the software/driver extracted.
Select an inf file then click the "Open" button. Click OK on the "Install From Disk" dialog.
The Add Printer Wizard will start to copy driver files to the PC.
Run the firmware upgrade with the printer turned off so that the printer accepts the firmware only after the entire file is spooled.
In the firmware update program's window, choose your printer (manually installed) and press Send Firmware button, and wait for the firmware to be spooled completely.
Power-on the printer.
During the printer firmware update, the liquid crystal display (LCD) on the printer control panel will display Printing Document and will change to Erasing . After a short while, the LCD display will change to Programming . After a short while, the LCD will display complete The Ready LED on the printer will start flashing. The printer will automatically power off and then back on to reboot, and will make noises similar to that of a power-on operation.
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This is why doing Firmware Upgrades is so risky. The firmware tells the printer what to do when it switches on before self testing and loading software. If the Firmware is corrupt, the printer becomes a giant paperweight. Help here
default must be no password , here are the steps to reset the printer
NVRAM reset for the HP LaserJet 400 colorMFP M475dn (Confirmed functional) 1: Print configuration page before beginning reset
2: Disconnect all cables except for power
3: While printer is in ready state, note the position of "Ready" message on the screen (Probably bottom right)
4: Power off the printer via power button
5: Touch the location on the screen where "Ready" message appeared.
6: while touching the screen, power on the printer. Continue to hold the screen.
7: When "Memory Limit Reached" message appears, release the screen.
8: Printer will reboot, clean and calibrate
9: Return cables to their appropriate ports
10: Print configuration page to confirm settings are cleared. Restore settings desired manually.
Finally have access back!
49 errors are most commonly caused when the printer receives a print job with commands it does not recognize. You can try updating the firmware as this will often resolve the error. Go to HP's website to find the most recent firmware, however this model is fairly old and likely the firmware update will be fairly old.
There is a utility and special firmware used to fix this problem. You will need to contact HP Tech Support as the 300 series is not listed in the downloads I have access to.
You will need to apply the firmware to the machine. I've attached the link to hp site for you to download the firmware file as well. Below the link is the directions on how to accomplish this, as well you can see the same directions on via the link provided
The Firmware Update Utility uses the USB connection to the printer.
The HP Color LaserJet CM1312 MFP print driver software must be installed prior to using this utility.
The HP Color LaserJet CM1312 MFP printer must be on and in a
READY state as shown by the LCD display on the control panel and remain
powered on during the entire firmware update process.
Depending on the processor speed of your PC, the firmware
update process may complete on the printer before the update status
progress bar in the flash firmware update utility on the PC screen
completes, this is normal.
Once the update process has started, do not use your PC for any other activity until the process is complete.
Do not power cycle the product or the PC until the firmware update process is complete.
Process:
Download the flash firmware updater file from HP.com to the PC desktop.
Turn the printer off and then back on to clear main printer memory.
Double click on the file
CM1312_MFP_Series_FW_Update-20100616.exe flash firmware update utility
file. An HP firmware update window will open.
Select the appropriate CM1312 MFP driver in the dialog window.
If you assigned a different name to the HP CM1312 MFP, choose the name
that represents the correct printer.
Click on "Send Firmware" when ready to proceed.
The progress bar will begin to move to the right indicating information being transferred.
DO NOT power cycle the product or the PC during this process
or the product may become unstable and or unusable without further
attention from HP. The flash firmware update can take up to 5 minutes to
complete. Please be patient.
During the product flash firmware update, the display on the
product control panel will display "Printing Document - Erasing -
Programming - Complete - Hewlett-Packard - Ready - Initializing -
Ready". Once the download is finished the printer will be in the Ready
state.
At the conclusion of the firmware update, the dialog window will show a smiley face. Click on exit.
If it is desired to verify the update, use the control panel
reports menu under setup to print a configuration report. The
configuration report will show the current firmware revision in the
Product information block, Firmware Datecode: 20100616
Try downloading the firmware from the hp.com website for your printer product number cc431a. There is a new firmware which was just released today. try downloading the firmware and sending the firmware while the printer is off,
If this does not work the formatter board is damaged and it will need to be replaced.
you can also try doing a hard or reset or nvram: 1. Turn the printer off 2. Hold down the right arrow and the cancel button 3. Reboot the printer while holding the buttons and hold until permanent storage is displayed. Let go of the buttons and wait for the ready message on the display.
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