T02-400

[paul the printer]

need help pretty desperately, riso rn2550 has code T02-400 saying push reset button which doesn't fix problem, half way through job, all the techs in adelaide are on xmas holidays, really be grateful for any help.

[BoBa]

Error type T02 [Elevator motor lock]
T02-400 Both the upper and lower limit sensors were blocked at the same time.
!!System Error!!
Press Reset Key

[paul the printer]

boba, have already tried that, it doesn't work, thanks you for your thoughts.

[jermyth]

Have you tried turning it off, then hold the reset button while turning it back on?

[20gaugeO/U]

Blow the dust off the lower limit sensor in the back of the machine. Otherwise one of the small gears inside the elevator motor case has broken, or the two white wires running to the elevator motor assy has broken.

[paul the printer]

Have you tried turning it off, then hold the reset button while turning it back on?

thanks jermyth, worked like a charm, but now have new problem i hope you can help me with?
after about 500 run, a big blob of ink is coming out from under the clamp on the drum, i am running at the lowest ink possible, the prints are always very dark,
is the machine running too much ink, or could there be something wrong with the drum? hoping you can help.

[jermyth]

Two possible problems with the ink blob. 1. Need a new impression roller. It has gotten warpped over time and use and is stressing the drum. 2. Drum has blown the ink blocker under the screen, drum needs to be repaired by a tech.

It is possible that both problems are happening too.

[paul the printer]

thanks jermyth, it has to be the drum, i put a colour drum in and that worked alright.