20 206 IndexBBlock diagram ...................................18CCasing removing.................................9Control panel replacement ...............10EError treatment .................................17FFailure of device functions ................17GGeneral safety instructions .................5HHandling electricity .............................6Hardware faults ................................17IImportant information..........................4MMaintenance work ..............................6PPCB CPU, layout diagram ................19PCB CPU replacement .....................14Power supply unit replacement ........15Printhead holder replacement ..........13Printhead replacement .......................7Print roller replacement ......................8Procedure in case of accidents ..........6Protective devices ..............................5SStepper motor replacement ..............12TTools ...................................................7Transport module replacement ......... 11VVoltages, exposed ..............................6