Question about IBM 6400 Model 010 Matrix Printer
After the jet direct box is connected to the printer, try to go to operator panel and get message "Operator Panel locked"
To "unlock" the operator panel on the IBM 6400 Line Matrix Printer, depress the Scroll Up and Scroll Down keys at the same time. On the IBM 6500 Line Matrix Printer, depress the Return and Enter keys at the same time.This acts as a toggle; if locked this action will unlock the panel, ifunlocked this action will lock the panel. The operator panel willindicate briefly which function is being performed. The printer powersup with the operator panel "locked."
IBM - Unlocking the Operator Panel on the IBM Line Matrix Printers
Posted on Dec 24, 2008
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Posted on Jan 02, 2017
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