37 INSTALLATION, MAINTENANCE AND REPAIR OF OFFICE MACHINES AND APPARATUS, NAMELY, PRINTERS, SCANNERS, FACSIMILE RECEIVING AND TRANSMITTING EQUIPMENT AND MULTIFUNCTIONAL DEVICES WHICH SERVE AS ANY COMBINATION OF A COPIER, FACSIMILE, SCANNER AND PRINTER; INSTALLATION, MAINTENANCE AND REPAIR OF COPYING APPARATUS, NAMELY, PHOTOCOPYING MACHINES, PLOTTERS, TYPEWRITERS, WORD PROCESSORS, MODEMS, COMPUTERS, DISC DRIVES, PRINTERS, FACSIMILE TRANSMITTING AND RECEIVING APPARATUS, CALCULATORS AND OF DOCUMENT HANDLING APPARATUS