Motor does not run properly

Did you replace the drum and developer units run the TCR adjustment since the TCR sensor determines if toner is needed if not needed no signal to main board to turn on the toner motor. You might have just need a new drum and developer unit not a motor and power supply. It would have been more likely it was the main board and not a DC power supply.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Hi
1. main charger shortage
2 drum in side ground contact no teach
3.ore toner damage

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.

Which model is this, for sharp f2 means toner concentration sensor ubnormalty, possibily due to defective toner or developer, or toner motor or pcu pwb first replace the developer and toner together this will possibily resolve your problem.

E020 - The toner is not adding correctly into the developing assembly.
1) If toner hopper is overfull, the toner motor worm gear splits as a result of the hopper becoming packed tight. 2) If the hopper is 1/2 full or less, the worm gear splits under normal use.

1) Advise customer to add toner only when the toner light is lit, right away, and replace toner motor, or 2) Just replace toner motor (FH7-1762-030).

After verifying that the toner hopper is working properly, check that the web solenoid is activating. Clean the web solenoid and ensure free action. This has been known to clear an E020.

After verifying that all is well with the toner hopper unit, consider the DC controller. It has been noted that some DC controllers do not provide sufficient current to drive the hopper motor. Replace the DC controller COL97.08.25 M0000244.txt.

Toner supply is controlled with readings from TD sensor on the developing unit and the I.D sensor above the drum by default.

These are low cost parts and easy to change.
(The TD sensor on this model have been known to fluctuate back and forth by a fair margin so is a good place to start).

You could also try stripping down and cleaning out the toner hopper.
Check the four mylars are present and the grabber is opening wide enough to grab the toner bottle nozzle successfully.

Check the toner hopper exit slider is opening fully when the PCU is inserted.

I had one of these 'add toner' faults today and it was the toner hopper all clogged up inside.
The side bit where the toner drops down had hardened clumps of toner stuck around the side entrance mylar and the exit hole.

Check also the toner motor. I have seen these fail. Run simulation output check for toner motor. I would remove the toner supply unit and hold the motor when you run this simulation. Sometimes the motor turns but does not have enough torgue to turn the toner supply unit.

Problem developers start leaking toner. The problem is that some times the toner spuills into developers below it and damaging them. The problem may appear as a grinding noise that may indicate a developer gear/motor problem, when in fact its a bad developer that is not running smoothly. It may be expensive, and you may have to replace ALL the Developers.

side door of copier is open just close it properly .if error stills just check by pressing start key what is sub code if 00 developer unit is missing if 01toner catridge is missing .just check all connectors of developer unit and toner unit.code will bi removed

It is the developer. All colours should be changed at the same time. This can be accessed via the right hand side of the machine, when you remove the cover. (where the output tray is)

Definately check and see if you are getting the motor current from the motor driver board and main pcb, before buying it. That should do the trick