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how do reset the default program on a er-4940 cash register?
how to clear a open cover error?
how to fix printing problem on er 4900?
"not assigned" displayed?
Reset my till without c key?
sequence error?
er-150|| how to get company name on till???????????????????????????????????
Till roll not printing properly?
how to set time in er-a330 cash machine???
er420m sequence error clearance caused all information to be cleared how do?
how to change the tax rate on er-4940?
fix a printer motor locking on an er 1970?