HP P2050 manual Theory of operation, Removal and replacement

Manage the print cartridge	59
Print-cartridge storage	59
Use genuine HP print cartridges	59
HP policy on non-HP print cartridges	59
Print-cartridge authentication	59
HP fraud hotline and Web site	59
Replace supplies and parts	61
Supply replacement guidelines	61
Redistribute toner	61
Change the print cartridge	62
Install memory (HP LaserJet P2050 Series Printers only)	64
Install product memory	64
Check DIMM installation	67
Save resources (permanent resources)	67
Enable memory for Windows	68
Clean the product	69
Clean the print-cartridge area	69
Clean the paper path (HP LaserJet P2050 Series Printers only)	70
Clean the paper path (HP LaserJet P2030 Series Printers only)	70
Clean the Tray 1 pickup roller	71
Clean the Tray 2 pickup roller	75
5 Theory of operation
Introduction	80
Internal components	81
Timing	83
Engine control system	84
DC controller	85
Low-voltage power supply	85
High-voltage power supply	86
Laser/scanner system	88
Laser failure detection	89
Image-formation system	90
Pickup/feed/delivery system	94
Jam detection	95
6 Removal and replacement
Introduction	98
Removal and replacement strategy	98
Electrostatic discharge	98
Required tools	99
Before performing service	100
After performing service	100
vi	ENWW