By the looks of it Edith was some configuration of service robot, entirely humanoid in shape, no external tools or additional appendages to note, their white coat of paint worn thin at parts, but interestingly they wore what resembled what the humans would describe as an overcoat that appeared much more well maintained than their own chassis.
Edith had compliantly assumed their position on the table, before Robot Counsellor Edina approached. Edina loomed over the service robot, almost disinterestedly,
"Name, serial number, position, role," they intoned for the umpteenth time in their employed work. The next questions were no less boring: when Edith was discovered to be demonstrating error in their system, what kind of error was it, what effects did it exhibit, what they were doing when it happened, who did they report to first, who they came in contact with, how long it had been since.
"The results of the diagnostic have been uploaded to your processing unit." Edith stated matter-of-factly after Edith explained the reasons for its malfunction.
"You will reset and recalibrate according to the specifications provided. Report to the maintenance unit if a hardware upgrade is required." Not that it was commonly known that there were hardly sufficient hardware upgrade resources available, and Edith would be unaware of that as well. This moment piqued Sid's attention. Was that all the counsellor was expecting? Just like that, with no other more sustained or invasive treatment or reprogramming?
The service robot declared their assent to the orders, and the clamps and restraints retracted, indicating they were free to leave, with no final word from Edina, who signaled to the guard bot to prepare the next robot in line. The guard bot gave the agitated Pluto a sharp look, but took no action. Halcyon could see the guard was another standard security model, not as mobile as they were, but built more sturdy, and likely to have a built-in weapon of some sort as well. Maybe they would be able to handle Pluto when it was Pluto's turn.
"Egox NRR-716." The booth unlocked and Egox stepped out.
"We were both instructed to come here together," Omar piped up, to which Edina responded by indicating for both of them to take their places side by side on the two examination tables.
"Omar ZUB-404," they reconfirmed. Nahendra looked at Ox, wondering if both of them would end up being analysed at the same time, seeing as they were also sent from the same place.
By now Sir could figure out Edina's hierarchy clearance was roughly equivalent to theirs, given the agency at which they issued instructions and commands. This was not unexpected, for it was appropriate that a counsellor would require the authority level to diagnose and treat robots from all statuses.
The same spiel of questions. But the replies took a more negative turn when both robots went on and on all over again about the pointlessness of their tasks, the uselessness of those cardboard boxes, the heedlessness of their supervisors, the stonewalling of their complaints. Their protests gained momentum until finally Egox blurted out,
"There must be something wrong with NODOS!"
Immediately Edina paused where they stood, marched over to where Egox lay, and directed a prong-shaped prod at them, sending joules of electricity coursing through their metallic frame. They straightaway followed that up with a series of pneumatic blows to the head unit of the industrial robot, and then a couple more to the chest cage. When the buzzsaw appendage came out, a loud shout came from the wall,
"No! Stop that!" Pluto began to pound on their booth in earnest!
[ +- ] Egox and Omar

That's Egox. Omar is similar, but with yellow and red markings.
OOC:
More than one thing happening. If anyone needs to rewind to when Edith leaves but before Egox and Omar start, they can. Otherwise you can pick up from the sudden change in Edina's behaviour and Pluto looking like they are going to break out of their cell.