How can i disable a fuser heater in an oki c711 printer so that i can print withiout fusing on paper

sounds like the printer heads needs to be clean or a paper jam.

your printer should have came with self cleaning software

paper jam
remove paper tray, open all access to printer to check if there is a crumbled paper or even a small torn piece of paper from a previous jam.

if successful restart your printer

This should have everything you need. First of course - get an new fuser from you Oki agent.
http://www.fortwayneprinterrepair.com/wordpress/2015/01/05/okidata-c610-c711-fuser-replacement-44289101/

Just to confirm that Jeff Hughes is correct. 928 does refer to paper wrapped around the fuser rollers making the thermistor see nothing hence the 928. If there is no paper in the fuser then it will need to be replaced. Remember to turn the machine off when removing or replacing the fuser.

They probably changed the setting in your operating system. Do you have windows or apple? Beyond that, do you recall if they made this change at the store on the printer itself, or were they tinkering with your PC when they made it monochrome?

additionally if you get a never version of English Job Accounting Server program, password that is requested is "aaaaaa"

Hi Gustavo,

This will guide you
http://www.oki.co.nz/support/printer/troubleshooting/index.aspx

Problem is most likely in the fuser. Are you using thick paper or anything other than 20lb bond.

If so use the printer properties to change the paper type. This will tell the fuser what temperature to use when fusing the image to the paper.

You cannot do borderless printing with a toner/fuser based unit.
The printer needs a paper grip area and cannot print to the edge due to the fuser.

you must choose the thickest media type possible at the printer and on the pc. your fuser is not fusing properly causing toner to goo on the roller, changing to thick paper increases temp and slows printing to ensure bonding. some coated papers do not work well with OKI printers. you should check mnf website for specs and recommended papers types

H4-01 Heat roller low temp is correct.

You machine has a fuser unit that it uses to bond the toner to the paper, it does this with  a heater lamp heating a set of rollers that the paper passes threw after it has printed.

Your machine monitors this unit to regelate its temp, your machine is sensing via a thermister and thermal fuse the temp of the fuser unit is not hot enough to enable use, this would mean the heater lamp is blown, thermister is faulty or thermal fuse blown 95% chance it's the lamp,

What one normally does is replace fuser assembly with new this is not a user thing it requires a tec, but if your into it, it is the hi voltage hot bit near paper exit.