HP M1522nf Service Manual - Page 7

PCL 5e 45 PostScript 45 Network Settings 45 Embedded Web server ...45 Features ...45 Use HP Web Jetadmin software 46 4 Operational theory Basic operation ...48 Sequence of operation for the base unit 48 Scanner and ADF functions and operation 50 Scanner functions ...50 Scanner operation ...51 ADF operation ...51 ADF paper path and ADF sensors 52 ADF jam detection ...53 Internal components (base unit) ...54 Engine control system ...55 Laser/scanner system ...57 Pickup/feed/delivery system ...58 Image-formation system ...59 Fax functions and operation (fax models only 63 Computer and network security features 63 PSTN operation ...63 Receive faxes when you hear fax tones 63 Distinctive ring function ...64 Fax by using Voice over IP services 64 The fax subsystem ...65 Fax card in the fax subsystem 65 Safety isolation 65 Safety-protection circuitry 65 Data path ...66 Hook state ...66 Downstream device detection 66 Hook switch control 66 Ring detect ...67 Line current control 67 Billing- (metering-) tone filters 67 Fax page storage in flash memory 67 Stored fax pages 67 Advantages of flash memory storage 67 5 Removal and replacement Removal and replacement strategy ...70 Introduction ...70 Removal and replacement warnings, cautions, notes and tips 70 Electrostatic discharge 71 Required tools 71 Before performing service 71 After performing service ...72 ENWW v