Question about Sharp AR-207 Copier

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AR-207 copier has "CH" flashing what to do?

I went to change the toner and when I turned the machine on the display was flashing "CH". I replaced it with the old toner and it still gave me the problem.

What should I do?

Is there a code that I could put in to clear it out? need help.

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  • CWChar
    CWChar May 11, 2010

    I have a similar occurence in that the toner light continues to flash, but I do not have a "CH" flashing. The LED simply reads Check Display Panel. Could this also be caused by the LSU?



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CH code is usually associated with the Crum chip located on the back of the toner cartridge that gets 5 volts dc from the power supply and resets a counter on the main board to tell the copier approximatley how much toner you have when you insert an new toner. What may have happened, is the same 5 volts dc is shared with the laser unit and the when the laser goes bad it may cause the CH code just before it gives the E7-03 code for the laser due to the 5 volts being drawn down by the bad laser. If turning the machine off and back on with the new toner doesn't fix it then you either have a bad chip on the new toner or a bad LSU (laser Scanner unit)

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Posted on Dec 20, 2007


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Results for " ch error", for sharp AR-206

ch usually means that a door is open the front or side doors. also check that your toner and developer is pushed all the way in.

Jun 24, 2014 | Sharp AR-207 Copier

1 Answer

Ar 5618

The blinking CH means that the Developing cartridge not installed.
Here is how to correct the issue:
1)Turn OFF the power of the machine.
2)Open the front cover.
3)Install the developer unit and toner cartridge.
4)Turn ON the power of the machine with the cover opened.
5)Enter Sim25-02. (Entered value display section: "CH" is displayed. Start LED: OFF)
6)Close the front cover. (Entered value display section: "--" is displayed. Start LED: ON)
7)Press [START] key to execute Sim25-02.When [START] key is pressed, the main motor rotates for 3 minutes to determine the toner sensor reference value and clear the developer rotation time as well as to clear the developer counter.When the operation is completed normally, the ATC sensor reference value is displayed on the entered value display section. If an error occurs, one of the following indicators is lighted. LED Misfeed indicator Paper required indicator This simulation must be executed only immediately after installing developer, Do not execute this simulation for any developer which has been used. If the machine goes into the warm-up state before completion of this simulation, there is a possibility that toner may be supplied to the developer during warm-up. In such a case, therefore, the developer must be replaced with new one.

Jun 14, 2013 | Office Equipment & Supplies

1 Answer

I have replaced the toner and it still flashes u 2 40 and i have tried pressing the # interupt c interupt 16 start but nothing

Corrupt or dirty toner unit chip. Remove toner cartridge, if dirty, clean chip and it's receiver on rear of machine. relocate cartridge and reset code using service code # * C * 16 press start key.

Good luck

Sep 14, 2010 | Sharp AR-207 Copier

1 Answer

Toner explosion

You need to either replace the toner cartridge or empty the sump on the front of the cartridge. The waste sump is in the front of the toner cartridge, It has filled up and has nowhere else to go but out of the sump and where ever it lands. Sometimes they fill up before the toner cartridge is empty. It happens

Jul 30, 2010 | Sharp AR-207 Copier

2 Answers

My Sharp AR-207 gets a U2 error code. Nothing happens now. What is wrong, and how do I correct?

When your copier toner cartridge sensor is blocked.then problem arise ut or bios battery is not configure program.
reset : # - interrupt - C -interrupt press 16 press start key.

Jan 28, 2010 | Sharp AR-207 Copier

4 Answers

Ar-5316 showing error ch

CH steady means cover is open. Close either front or right cover well.
CH blinking means developer unit or toner cartridge not installed. Remove and return well and firmly.

Nov 22, 2009 | Sharp AR-5316 Advanced Digital Imager...

1 Answer

Error Code E 7

press"clear","interupt","0","interupt",enter14 press start.should take care your problem.

Dec 15, 2008 | Sharp AR-207 Copier

1 Answer

AR-150N series copy machine. Making loud clicking sound and has CH on display. Need manual for this machine also.

CH means door is open, flashing CH means problem with toner cartridge You may need to replace the toner cartridge, the op manual can be downloaded at:

The 151 is the same to the 150
Hope this helps you...

Jun 06, 2008 | Sharp Office Equipment & Supplies

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