Printer My MP730 Canon Imageclass printer/copier/fax/scanner has stopped printing and is showing a ##334 error code. What do I do?

The percentage-of-available-toner is based on calculations made by the printer's internal software -- quite different from putting a measuring-stick into an above-ground oil-tank to determine the ACTUAL level.

So, while the calculations say "zero percent left", there still is some toner inside the toner-cartridge, and so it still prints.

Buy a replacement cartridge. When you finally do run-out of toner, install the new cartridge.

Compare it to buying a new quart of milk, and then using the last 1/8 of the quart of the milk currently inside your refrigerator -- use the "old" milk until it is 100% gone, and then switch to the "new" milk.

Cannon Image class MF4350d E225 Error Solution

Hello I have the same problem my canon still showing error e7330000.Help me fix the problem.

go to printer folder from control panel
double click to imageclass see there is some printin quque
delete all print jobs
also right click to printer see there printer is offline make it online then try to print

The error code ##334 represents a EEPROM check error. The manual says this means the Printed Circuit Board may need replacing, however, try this procedure.
Insert paper into machine.
1)To enter service mode press Menu, copy, #
2) Select Test Mode with the + or - keys
3) Press OK
4) Press 8, lcd shows 'Please Wait', after wait, press 3, the lcd then alternates between 3-0 (EEPROM clear), and 3-1 (Purge flag)
5) When EEPROM clear (3-0) shows in lcd, press 0, then OK, then Stop then press the OFF button.

Repeat the above from Step1 to step3
in step 4 this time reset the Purge flag by pressing 0 when 3-1 shows in the lcd, OK, Stop, Off.
If the red fault light is still blinking press Resume.

hope this helps

#334 is an eprom error and if turning on and off does not reset it, you have something going on with the main logic board.
http://printer1.blogspot.com/2009/01/canon-multipass-mp730-service-manual.html
Above is a service and repair manual this will assist you to troubleshoot and hopefully repair, although I fear with this type of fault, it needs to be returned to the factory.

Set your canon on factory defaults using front menu button. And then set fax again.
may it helps

If you're in the USA, go to this link. Enter your zip code or city / state and click the "Find Service Location" button.

sounds like you have an empty ink catridge. even though the catridge doesn't look complete empty the sensor can decide it is and won't work until you change the cartridge. You might want to remove and reinsert all of the cartridges making sure they are in the proper slot and properly setted.

My printer will print on every type of paper i set it to in the preferences, except "plain paper". the machine also doesn't copy when set to plain paper also. I printed a report cover on matte paper which printed fine, but when i change back to plain paper, it doesn't print.