Minolta 6001 c0072 sub hopper motor toner imagen en blanco

The error code C0072 deals with the toner hopper. I would remove the toner bottle and close the front door and wait till the copier comes to ready and make a copy, if it works install the toner and see what happens. The problem may be in the toner bottle holder.... There is a "HP" sensor that may be dirty or broken. Good Luck

Sub Hopper Toner motor mechanism malfunction.Remove rear cover,pull out toner cartridge,Remove sub hopper unit fixed under main hopper toner assembly and change the sub hopper motor or the agitator levers gears.

You did not give the model number? So, I'm going to guess, did you just add a new toner? If so remove the new toner bottle and close the door / cover and see if the copier comes to ready? If so, make a copy and when the copy is done install the toner bottle. The error code C0072 deals with the toner hopper motor. If the code will not clear, then you may have a broken gear in the hopper drive unit. Good Luck

Toner Density senor, located under the image developer assy. Clear by openning and closing the front door, if it comes back service technician required to replace developer, sensor, sensor board or mainboard. EP6001 is a legacy equipment may have a problem locating parts and supplies.

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

Are you certain it is a Minolta 6100? The only 6100 I am aware of is a Magicolor 6100 color printer. My service manual for that model lists no service code C0072.
C0072 is a common Minolta copier code which pertains to the toner add system. I had a service call the other day for C0072 and it was the toner cartridge not fully "locked" in to it's receptacle, so you can start there. Opening and closing the front door on most Minolta's will reset this code.
Good Luck

C0072: Sub Hopper Toner Replenishing Motor M9’s
Failure to Turn

C0072 is aerror code for the sub hopper unit. It is having a hard time adding toner or that the toner motor is ON for to long. It is having a hard time kepping up with the ATDC. The M2 is a counter, it can be reset in service mode, but major parts have to be replaced to clear it..

Remove the toner bottle and let the copier warm up to Ready, then re install the toner bottle and see what happens

OK CAREFULLY take out the toner bottle, then open close the front door, then power off the machine, wait 10 sec, then power the machine up with the toner bottle out, only add the bottle when it ask for toner

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

Di200 [Subject] "Please Add Toner" is displayed even though the toner bottle is full. The ATDC circuits have been checked and the main and sub hopper motors are good. [Description] "Please Add Toner" is displayed even though the toner bottle is full. The ATDC circuits have been checked and the main and sub hopper motors are good.
[Solution]
CAUSE: Inside the sub hopper, the magnet (P/N 9326-2900-06) may be catching on the inside of the hopper, preventing proper actuation of the Sub Hopper Toner Empty switch.

SOLUTION: Make sure that the actuator can move freely up and down when no toner is in the sub hopper.