Laser Printer - Page prints black

Remove power lead from printer.
Check electrical contacts to the toner cartridge aren't dirty. Otherwise this is due to a faulty HV PSU.

Laser Printer - Ink smears off printed page

Remove power lead from printer.
This is due to the toner not having fused to the page. Check the connections to the fuser unit it's probably not reaching it's full temperature.

Zebra Wristband Printers

To reset network settings power off and on while holding down rear button and keep it held for 30 seconds.

You can browse to the web interface if you know the IP address and from there modify settings.

Xerox Workcentre - Scan-to-email

I have found in the past that this feature fails every so often and is very difficult to resolve. I even had to go to the extent of lodging a complaint to the service provider as the 48hour response was not honoured the first time this occurred - it took a month!!!

The symptoms are that all other functions continue to work properly, but upon scanning to email, the display just says processing and remains stuck there for 10-15 minutes. In addition, the email does not get sent most tries.

I was informed by a senior technician that these machines have been programmed to stop scan-to-email after 60,000 have been done, i.e. this problem will crop up every 60,000 scan-to-emails!!! Not many of the Xerox engineers nor their support desk were even aware of this...

The solution is to run a firmware update BUT to apply the same firmware as already installed. I'm not sure if there's firmware available on the Xerox website, and it may not work via the web interface, in which case a Xerox engineer would need to do it via a serial cable/laptop.

3027 MFP Cold Reset/NVRAM init

This is with reference to the case which is been logged for HP LaserJet M3027x Multifunction Printer.

I understand that the printer freezes and gives 49 and 68 errors.

In order to narrow down the issue please perform the steps mentioned below:

1.      COLD RESET

1. Turn off the device.
2. Turn on the device.
3. When the control-panel display shows that the device has begun to count the memory, press and hold the Start key.
4. When the LED lights turn on, release the Start key.
5. Press the 6 key to select Initialize disks.

The device continues the power-on sequence.

2.      NVRAM INIT

Note : Initializing the NVRAM resets the event log, the page counts, and embedded EIO
and resets service menu values to factory defaults. NVRAM initialization does not reset the
model number, serial number, usage data, or the error log.

NOTE: Before performing a NVRAM initialization, print a configuration page. Use the
information on the configuration page to reset any customer-set device configuration values that
the NVRAM initialization procedure changes. Take special note of the total page count and
maintenance count.


1. Turn off the device.
2. Turn on the device.
3. When the control-panel display shows that the device has begun to count the memory, press and hold the 9 key.
4. When the LED lights turn on, release the 9 key.
5. Press the 3 key, and then press the Start key.
6. Use the 3 and 9 keys to scroll through the options (skip disk-load, NVRAM init and skip calibration)
   and then press the 6 key to select the option you want. The device continues the power-on sequence.

Oki Printer NIC

OKI Printer Network Card

root and last 6 digits of MAC

The Trouble With Brother

The big Status light was red and the toner light was on, and you could not print.

Brother’s (Helpline) solution is to have a brand new (never before installed into a printer) cartridge on hand and put that in to ‘reset’ the machine.

If you don’t have a spare cartridge handy…..

….do the following:

Remove the cartridge from the drum by pressing the blue tab on the right. (keep the drum in the dark – inside the printer – cos it’s sensitive to light)

You are looking to reset the cam which is under the half-moon shaped protrusion on the left hand side of the cartridge.

Undo the two screws on the left hand side of the cartridge. Being careful not to let all of the cogs drop out, lift off the cover.

The cam is the only black plastic cog there and all the rest are white. It also only has teeth around half of the edge so it never does a full rotation.

You will find it interlocked with a white cog next to it. Lift out the cam and rotate it around until the one tooth which is wider than all the rest is in line with the white cog. Interlock it there. Then re-seat the arm of the spring which was under the cam behind the small lug at the bottom of the cam.

Screw the cover back on and reinstall the cartridge.

Laugh at Brother.