HP LasetJet M1120 manual Maintenance, Operational theory, Removal and replacement

Install the print cartridge	21
3 Maintenance
Manage supplies	24
Life expectancies of supplies	24
Check and order supplies	24
Store supplies	24
Replace supplies	25
Print cartridge	25
HP policy on non-HP supplies	26
HP fraud hotline	27
Clean the product	28
Clean the exterior	28
Clean the flatbed scanner glass	28
Clean the lid backing	28
Clean the paper path	29
Management tools	30
Information pages	30
Embedded Web server	30
Features	31
4 Operational theory
Basic operation	34
Sequence of operation for the base unit	34
Scanner functions and operation	36
Scanner functions	36
Scanner operation	37
Internal components (base unit)	38
Engine control system	39
Laser/scanner system	41
Pickup/feed/delivery system	42
Image-formation system	43
5 Removal and replacement
Removal and replacement strategy	48
Introduction	48
Removal and replacement warnings, cautions, notes, and tips	48
Electrostatic discharge	49
Required tools	49
Before performing service	49
After performing service	50
Post-service tests	51
Test 1 (print-quality test)	51
Test 2 (copy-quality test)	51
Parts removal order	52
Scanner assembly	53
Link assemblies and scanner support-frame spring	53
Scanner lid	56
Control-panel overlay	57

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