How do I clear the

a printer,? yah.
NO PC told, this printer is from 2012 era.
that and error? RTM on clearing errors,
first we fix the cause of errors then they self clear. in most cases
push CA, clear all key yet?
or the clear key.
this complex printer is capable of vast errors. covered in the manual here (RTM)
Sharp ar6020 printer read page 111 for CH error,

https://www.manualslib.com/manual/885094/Sharp-Ar-6020.html?page=111#manual

Take it to a qualified repair shop, unless you know about C.A.N - controller area network - serial data communication network between modules . U1900 -20 - ic states that one of the 8 or 10 or more modules on your vehicle has stopped talking .
U1900 CAN Communication Bus Fault-Receive Error RCM REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error Occupant Classification Sensor REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error SJB REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error DVD Player REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error Audio Control Module (with Navigation) REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error Audio Control Module REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error SDARS REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error Retractable Running Board Module REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Recieve Error ABS Module REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Recieve Error Parking Aid Module REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error 4WD Control Module REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error Instrument Cluster REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 . U1900 CAN Communication BUS Fault - Receiver Error DSM REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to Section 418-00 .

The E00 code on your SAM4S cash register indicates a Sequence Error.

You can try an Initial Clear to reset the error:

1. Turn the power switch located on the right side of the register to the OFF position.
2. Turn the control lock to the P position.
3. Press and hold the key position where the SBTL key is located on the default keyboard layout.
4. While continuing to hold the SBTL key, turn the power switch to the ON position.
5. The message "INITIAL CLEAR OK!" prints when the initial clear is complete.

You may have to try the Initial Clear procedure a few times to clear the E00 error.

The Error Code SC542 or Sc546 could be a caused by a few reasons. There is a temperature problem with the fuser unit, the roller thermistor is bad, or the BCU Board is bad.
1 metode to reset Ricoh Error code sc542:
To clear the code:
Hit the yellow "Clear Modes" key
Press 107 on the number pad
Press and hold the "Clear Stop" for 10 seconds until you get a new screen ...
Press the "Copy SP" Button on the display
Open the front door
Turn front left power switch off and on
Shut the door
The error code is now cleared.
reset Ricoh Error code sc542:
To Enter and Exit the SP Mode
1. Press yellow "Clear Modes" key .
2. On the operation panel keypad, press 107 number
3. Hold down red "Clear" key more than 10 seconds.
The Copy SP is displayed.
4. Press "Copy SP" and go to the code SP5810, press "Execute"
5. To exit the SP mode, just press Exit in the upper right corner of the SP mode
screen. Power switch off and on and the error code is now cleared.


Hope this his helps, thanks for using fixya.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

Service mode, first

1.Press the Utility key.
2. Press the Meter Count key.
3. Press the following keys in this order:
Stop  0  0  Stop  0  1

for security "Stop 9"

In Security, Select Copy Kit
1. Touch "Set."
2. Press the Clear key to clear the current setting.
If the setting is accidentally cleared, press the Interrupt key to
undo the clearing operation.
3. Enter the desired value from the 10-Key Pad.
4. Touch "Current."
5. Press the Clear key to clear the current value.
If the current value is accidentally cleared, press the Interrupt key
to undo the clearing operation.

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

1.Press Colder Key Once

2.Press Alarm Key Once

3. Press Colder Key Once

4. Press Alarm Key Once

5. Press Colder Key Once and Clear Error History Yes? Should Appear

6. Press Alarm Key Once all Error codes will clear including "Service"

Hello,
the e001 is error for temperature rise by main thermistor. If the termistor OK and doesn't need to be replaced you can clear the error in service mode. If clear doesnt helps, you need to change the fixing film assy.

Clearing error:
Press the User mode key, 2key, 8key,
User mode key sequentially
now you are in service mode, by arrow right, select #CLEAR, press OK, choose ERR and OK.

Also you can try with same procedure but instead ERR choose ALL. NOTE: under clear ALL, you delete all user data and restors the copier on factory settings.

Hope that helps!

01. Press Clear/Stop Key (Yellow key) 2 tram
02. type 107
03. press Hold down Clear key 5 secend ( Red key)
04. type 5 and press # or Ok
05. type 810 and Press # of Ok
then machine Of and On

Press the "P" key, the "Interupt" key, the "C" key then the "Interupt" key.

Once you enter the Simulation Mode, then "2,2, start (Print Key) will show the jam, service counters, and 2,4 start (Print Key)"will allow you to clear the counters.

To clear certain codes, once you enter the Simulation Mode, then enter "13 or 14 or 15 or 15 then start". Depending on the code will depend on which "number" you need to execute. (It doesn't hurt to do all the numbers."

To find out the sub code for the U2 error hold down the Start key. Below is a list of the errors:
U2-04 EEPROM serial communication error
U2-11 Counter check sum error
U2-12 Adjustment value check sum error (EEPROM)
U2-40 CRUM communication error

To clear the U2-40 error try pulling out the toner cartridge and firmly reinstalling it. If that doesn't work you must install a new toner cartridge. There is a CRUM chip on the cartridge that keeps up with how many impressions have been made with that cardridge. You cannot "refill" these cartridges without replacing the CRUM. This problem occurs frequently with remanufactured cartridges.

To clear other U2 errors you must enter simulation mode.
Perform the following procedure to enter the simulation mode.
Clear key - Interrupt key - "0" key - Interrupt key - 16 - Start key - Start key. The unit should reset.