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1. Do a CN update, this fixes alot of goofy issues for me.
2. Try a different working y-dev unit. And check the connections on the rear of machine that contact the t1 belt unit, especially around...

After changing all those items and doing all the adj, and it still over tones, I would back up the address book and IP address, and do a sim 6-90, and reload the firmware, which sets the machine back...

I agree with all your comments above, don't add the extra cleaning roller kit, its just more junk to gum up and wear out
the rollers, or heat belts. Remember the MX2600 fusers, they had no cleaning...

If any of the drums or T1 Belt blades are leaking you will get that build up on the fuser roller. I always pull all the coronas to see if they are clean,
if they have any toner on the mylars by the...

I have had that error randomly show up on this series and found staples or paper clips laying on the scan board on the rear of the adf.
Take that rear cover off and check for anything laying on that...

:confused: I have seen a firmware up date give all zeros on a upgrade, and it took 2 more CN update tries to get it to upload all of the package, I also should
mention that anytime you upgrade...

Download the most current firmware from Sharp and do a CN firmware update on your machine, this type of download has fixed some really
goofy problems for our service Techs,. Good luck Dan,

I have had this groan on alot of the sharp models and just about always the blade that sits on the fuser heat web, most paper any more is dusty and
it don't take many prints to get a buildup on it...

:confused: Morning all, I have a customer that bought this machine to print a Colored logo and return address on a large amount of #10 v-flap white envelopes.
It would do a good job printing them,...

Check your ADF hinges to see if they are loose or a spring maybe pushing the ADF off the slit glass after it sits still for awhile. I know they have updated the hinges on this series since the...

Sorry I didn't see the earlier posts about what has been tried, but I have had alot of machine jams this summer on brand new machines caused by damp paper.
Our humidity has been really high all...

Go ahead and change all the sensors in both drawer feed assemblies,and the reg. area I have found some of the old style sensors in these models, and when one don't see the paper
go by the pickup...

Have you found a fix for your problem, if not try this.
Try unhooking the cable to the slide out keyboard, if machine starts up and works OK then the USB board under the keyboard is bad, part...

Here are the issues and fixes I have found with this style bypass, random not feeding is usually caused by the 2 small plastic rollers that sit on front and rear of the lift tray on the bypass, they...

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Hi dcooper, take alook at MFP-TB-1188 this talks about a problem like yours, Also if your machine is in a dirty place notice their is a sensor in this area that maybe dirty.
Hope...

[QUOTE=bullet34;559202]I have always tried to make sure customer has a dedicated line in to fax, but this particular account has 2 numbers coming over one line with the fax line being a Distinctive...

If this is a machine that another tech maybe changed some settings on or the user has changed the exposure settings defaults on then I would do a auto calibration in the system settings,
on both the...

:confused: I don't know for sure what you mean by you changed mod shafts and plastic clutch housing, but I had a MX3640 a while back that gave me the same problems and after changing
PTC, mod hv pwb...

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If the main transfer gear is good and belt works OK, replace the secondary belt unit, I have had some of these break the case behind the foam roller that sits inside of the sec. belt....

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You may have one of the bad sensors in the ADF, that randomly stops working. Use sim 2-2 to test the sensors, and do it more than once. I had a machine this week that the sensor would...

Yes we have had a lot of these lately, and most of them is caused by the slides bindng up when the fuser is suppose to open and close. I have tried to lube these with various grease or oil. it helps...

Make sure you don't have any main. due, or toner low messages
on, I have had these stop print jobs. Hope this helps.
Dan.

One was on a MX3640N, and the other one was a MX3115N.

Dan.

We replaced 2 boards in the last week to fix the problem, after the new PTC didn't fix the problem. Before you replace this board check the number listed on your old board, if it is the new board...

If this machine is in a dusty area, you may have dirty laser lenses
and mirrors, pull out the laser unit. Remove the cover and air clean
and wipe down the lenses and mirrors. It maybe just bad luck...