A Chip Off the Old Block

Last night I completed work refurbishing the last of the six ink drums for my Risograph ME 9450U duplicator following a marathon afternoon session on Sunday essentially rebuilding nearly all the other drums to re-check and replace the light absorbing strips on each. The aftermarket versions proved to be incompatible with this particular machine. The ones used on drums for the EZ391U machine worked fine though. These light absorbing strips are used by the machine to detect when a mas...