We bought a machine OCE Plotwave 340 6 months ago which shows error code 8517 could you please explain the code.

The error 22552 means that the computer has lost its connections with the printer so you have to check first if the connections are right before replacing any of the machines,you may have missed something in between

This article is about two printer error codes, 22551 and 22531. These codes are associated with the OCE Plotwave 345 printer. The error code 22551 means that the printer has lost its connection to the computer, and the error code 22531 means that there is a communication problem between the printer and the computer.

this error more related to software problem,but you need do below step to check their hardware is in good condition.if all ok no problem,you may need to reformat their OS
1.off machine/on machine
2.pls check their controller connection (in you left side back cover down area).Make sure all the port are plug in properties and also in correct location,you cannot plug in to anywhere if no you will get the error code.
3. open fusing door ,try to unlock screw on right side back cover got 3 screw (torx 15 or 20)
4.open that cover look down that area got 1 big spider board.make sure all their connector usb port are plug in properties and in correct location.
5. check the big board should be got 3 LED green light stable on if no use machine.no got red LED on.
6.check that small board are properties install in good position in big board location.
7.check that small board must go 1 LED green light always falshing or stable,if got Red LED light on means this board faulty need replace new unit.

Please verify the error code if this is a PlotWave 300. If this is a ColorWave 300, then the error is Present sensor 2 roll 2 does not open during retract. Check to see if the sensor is blocked or broken. at the input side of the lower roll.

Oce PlotWave 340 User Manual Page 374
I didn't find error 12535 may be this user manual will provide some help. it is a searchable link.
https://www.manualslib.com/manual/573016/Oce-Plotwave-340.html?page=372#manual

Hi i have a problem with oce plotwave 360 give me an error (NO COMMUNICATION WITH CONTROLLER - 95) please help me wath i need do

JAI UN PROBLEME AU PLOTWAVE 300 MARQUE OCE
CODE ERREUR 8510
C QUOI LE PROBLEME ET C DU A QUOI ET QUESQUE JE DOIT CHANGER
MERCI
REPONDEZ PAR EMAIL
[email protected]

Error Code 15709 is coming frequently... what should i do for this? please do the needful...

This error will be caused by a jamb inside the cutter assembly of the lower roller drawer. Remove the two black Torx screws at the left and right sides inside the lower paper drawer. Next remove the galvanized cover. You should then be able to see the edge of the paper. Grasp it firmly with a pair of needle nose pliers and pull straight up and out. Clear your errors and commence printing.