03/13 Rev. 5.08-01 USER MANUALDPM - PEM - ALX 92xMaintenance & CleaningGeneral Notice .............................................. 2Maintenance by Qualified Personnel ........ 2Safety . ....................................................... 2Troubleshooting ...... .................................. 2Ordering Spare Parts ................................ 3Note on Cleaning ...................................... 3Cleaning Agents ........................................ 3Printhead ....................................................... 5General Notes ........................................... 5Cleaning the printhead .............................. 6Changing the print head ............................ 8Checking the print head ............................ 9Rubber rollers ............................................. 11Feed / Print roller ..................................... 11(PEM) Pressure roller .............................. 12Deflection rollers ..........................................13(DPM/ALX) Backing paper deflectionroller .........................................................13(ALX) Material deflection rollers ...............13Photoelectric switches .................................14Cleaning the gap photoelectric switch .....14Cleaning the material end photoelectricswitch .......................................................16Cleaning the foil path ...................................17Replacing the dust filter liner .......................18DPM/PEM ...... ..........................................18ALX ..... .....................................................19(ALX 92x AI Pro) Fuse replacement ............20