Service manual

Envelopes with double-side seams.....................................................................23
Envelopes with adhesive strips or flaps..............................................................24
Card stock and heavy media ..............................................................................................24
Card-stock construction......................................................................................24
Card-stock guidelines..........................................................................................24
Loading media......................................................................................................................................25
Main input tray.....................................................................................................................25
Priority feed slot...................................................................................................................25
Specific types of media .......................................................................................................25
Setting media types..............................................................................................................................26
Set the media type...............................................................................................................26
3 Maintenance
Life expectancies of parts that wear ....................................................................................................28
Cleaning the product............................................................................................................................30
Cleaning the print path.........................................................................................................31
Cleaning the print-cartridge area.........................................................................................32
Cleaning the pickup roller....................................................................................................34
User-replaceable parts ........................................................................................................................35
Replacing the pickup roller..................................................................................................35
Replacing the separation pad..............................................................................................38
Replacing the main input tray (paper-pickup tray assembly)...............................................40
Replacing the output-bin extension (delivery-tray assembly)..............................................41
Jams.....................................................................................................................................................42
Clearing jams.......................................................................................................................42
Typical media jam locations................................................................................42
Removing a jammed page..................................................................................43
4 Operational overview
Basic functions.....................................................................................................................................46
Formatter system.................................................................................................................................47
Central processing unit .......................................................................................................47
RAM.....................................................................................................................................47
USB interface.......................................................................................................................47
Parallel interface (HP LaserJet 1015 printer only)...............................................................47
Control panel.......................................................................................................................47
Draft mode (EconoMode)....................................................................................................48
HP Memory Enhancement technology (MEt)......................................................................48
Enhanced I/O ......................................................................................................................48
PJL overview ......................................................................................................................49
Printer functions...................................................................................................................................50
Engine control system (engine control unit and power assembly).......................................50
Printer-engine-control system.............................................................................51
Printer laser/scanner unit ...................................................................................52
Power system on the engine power assembly....................................................53
Image-formation system......................................................................................................54
The seven image-formation processes ..............................................................55
Print cartridge......................................................................................................................56
Printer paper-feed system...................................................................................................56
Jam detection .....................................................................................................................58
iv ENWW