HP LaserJet M1319 - Multifunction Printer

DC power distribution ....................................................................... 46
Overcurrent/overvoltage ................................................................... 46
High-voltage power distribution ........................................................ 47
Image-formation system .................................................................................................... 48
The seven image-formation processes ............................................................ 48
Print cartridge .................................................................................................................... 49
Product base paper-feed system ....................................................................................... 49
Jam detection in the product ............................................................................................. 51
Conditions of jam detection ............................................................................... 51
HP LaserJet M1319f components ...................................................................................................... 52
Basic operation .................................................................................................................. 52
ADF pickup-and-feed system ............................................................................ 54
Optical scanning system ................................................................................... 56
Fax functions and operation .............................................................................................................. 58
Computer and network security features ........................................................................... 58
PSTN operation ................................................................................................................. 58
Receive faxes when you hear fax tones ............................................................................ 59
Distinctive ring function ...................................................................................................... 59
Fax by using Voice over IP services .................................................................................. 59
The fax subsystem ............................................................................................................. 60
Fax card in the fax subsystem ........................................................................................... 60
Safety isolation .................................................................................................. 60
Safety-protection circuitry .................................................................................. 60
Data path ........................................................................................................... 61
Hook state ......................................................................................................... 61
Downstream device detection ........................................................................... 61
Hook switch control ........................................................................................... 62
Ring detect ........................................................................................................ 62
Line current control ........................................................................................... 62
Billing- (metering-) tone filters ........................................................................... 62
Fax page storage in flash memory .................................................................................... 62
Stored fax pages ............................................................................................... 62
Advantages of flash memory storage ............................................................... 63
6 Removal and replacement
Removal and replacement strategy ................................................................................................... 66
Warnings, cautions, notes, and tips ................................................................................... 66
Electrostatic discharge ....................................................................................................... 66
Required tools ................................................................................................................... 67
Types of screws ................................................................................................................. 67
Service approach ............................................................................................................................... 68
Before performing service .................................................................................................. 68
After performing service ..................................................................................................... 69
ENWW v