E7 code for AR 6020

SOURCE: Sharp AR-507 code E7-00

ICU Communication error. Could be a problem with the ICU board or the connection between it and the PCU board. If resetting the machine (main power off and on) does not solve the problem you'll likely need a service call from a copier tech.

SOURCE: E7 problem

Sharp AR-5132 won't print

Error code E7 13

It will warm up like it's about to print or scan then error code E7 13

please give any advice

SOURCE: sharp ar 407

Hello sir;There have a procedure to reset;
1, press "program", "interupt", "clear", "interupt"
2, enter 14, then press start,then enter 0, press start again. then press clear.

SOURCE: sharp ar-m205 error code E7 11

U HAVE TO UPGRADE THE FIRM WARE BY ENTERING SIMULATION 49-1 THE VALUE IS d THEN UPDATE THE FIRM WARE IF U HAVE IT

SOURCE: sharp AR-R550n

Hello sir; You may try to perform a reset procedure as follow;
press " program", " * ", " clear ", " * " and start key, then enter 17, press start again, turn machine off and back on.