How to fix error code E020 in Canon iR Content IR 2520 2525 2530 2535 2545

Error code: E020-0000
The path between the sub hopper and the developing assembly is
clogged with toner. The Developing Assembly Toner Sensor (TS1) detects the absence of toner,while the Sub Hopper Toner Sensor (TS2) detects the presence of toner. With the Developing Cylinder Clutch (CL3) turned on, the hopper feedscrew motor (M7) is rotated for 1 sec intermittently 194 times still, theDeveloping Assembly Toner Sensor (TS1) does not detect the presence of toner.
Error occurs after the delivery if a paper in passage exists.
1. Check the rotation of hopper motor gear. (If rotating, false detection by the sensor is doubted. Feed the toner to the developing unit in
service mode: CLEAR-ENGIN-TNRINST.)
2. Replace the Developing Assembly Toner Sensor (TS1)
3. Replace the Sub Hopper Toner Sensor (TS2).
4. Replace the DC Controller PCB (PCB4)
All Error codes
E000-0001
E001-0000
E001-0001
E001-0002
E002-0000
E003-0000
E004-0000
E010-0001
E010-0002
E014-0001
E014-0002
E019-0000
E020-0000
E024-0000
E024-0001
E025-0000
E025-0001
E110-0001
E110-0002
E110-0003
E196-0000
E197-0000
E197-0001
E202-0000
E240-0000
E240-0001
E246-0000
E247-0000
E261-0000
E350-0000
E354-0000
E355-0000
E355-0004
E355-0005
E500-0000
E505-0001
E520-0001
E520-0002
E531-8001
E531-8002
E532-0001
E532-0002
E540-0001
E540-0005
E542-0001
E542-0005
E567-0001
E567-0002
E571-0001
E571-0002
E575-0001
E575-0002
E602-0001
E602-1105
E711-0001
E713-0000
E716-0000
E716-0010
E719-0000
E719-0002
E736-0000
E744-0001
E744-0002
E744-0003
E744-0004
E804-0000
E804-0001
E805-0000
E805-0001
E805-0002
E805-0003
#canon advance #Toshiba e-studio #sharp #konica minolta #develop #kyocera
#TechHumayunkabir
/ techhumayunkabir
/ humayun61

[@himanshu6318]

716 error ka solution

[@حيدرسعد-ع1ن]

شكرا ❤❤❤ ❤❤❤

[@TKHAN731]

Nice work

[@Bdoksa]

Sharp mx m623n error code f1-38. I hope you can help me, even if it is in exchange for money. I tried all the methods and the problem has not been solved yet..

[@TechHumayunkabir]

Punch data backup RAM error
Punch control PWB trouble. Malfunction due to noises.
Use SIM3-3 to check the operation of the saddle positioning motor. Replace the saddle positioning motor (FSPM). Replace the finisher control PWB. Replace the home position sensor. Check connection of the harness and the connector.

[@Bdoksa]

@@TechHumayunkabir Everything you mentioned has been done and no solution has been achieved!? Do you think the problem is in the finishing unit?