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HP Color LaserJet Enterprise CP5520 User Guide - Page 95

Remove the fuser gear assembly 5 of 9

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4. Disconnect one connector (callout 1), remove four screws (callout 2), and then remove the fuser motor (callout 3). Figure 119 Remove the fuser gear assembly (4 of 9) 2 1 3 5. Disconnect three connectors (callout 1), and then release the wire harnesses from the guide (callout 2). Figure 120 Remove the fuser gear assembly (5 of 9) 2 1 ENWW DRAFT Removal and replacement procedures 95

Section	Page
Removal and replacement	1
Introduction	2
Removal and replacement strategy	2
Electrostatic discharge	2
Required tools	3
Service approach	4
Before performing service	4
After performing service	4
Post-service test	4
Print-quality test	4
Removal and replacement procedures	5
Print cartridges	5
Toner-collection unit	9
Fuser	11
Reset the New Fuser Kit setting at the control panel	11
Pickup roller (Tray 1)	12
Separation pad (Tray 1)	13
Separation roller assembly (Tray 2)	15
Pickup roller (Tray 2)	16
Pickup roller, separation roller, and feed roller (1 x 500-sheet and 3 x 500-sheet paper feeders)	17
Secondary transfer roller	18
Intermediate transfer belt (ITB)	19
Reset the New Transfer Kit setting at the control panel	21
Formatter PCA	22
Encrypted hard drive or solid-state hard drive	24
Remove the EIO encrypted hard drive	25
Remove the solid-state hard drive	26
Covers	28
Identification and location	28
Right-front cover and control-panel assembly	30
Left cover	32
Rear cover	33
Remove the rear cover	33
Toner collection unit access door	34
Right-rear cover	36
Reinstall the right-rear cover	37
Top cover	38
Remove the top cover	38
Front-door assembly	40
Right-door assembly	43
Main assemblies	47
Formatter case	47
Remove the formatter case	47
Laser scanner assembly	49
Remove the laser scanner assembly	49
Paper pickup assembly	52
Remove the paper pickup assembly	52
Reinstall the paper pickup assembly	55
Installing a replacement paper pickup assembly	57
Registration sensor assembly	59
Remove the registration sensor assembly	59
Lifter-drive assembly	62
Remove the lifter-drive assembly	62
ITB front guide assembly	65
ITB rear guide assembly	68
Residual toner full sensor	69
Remove the residual toner full sensor	69
Reinstall the residual toner full sensor	72
Main drive assembly	74
Remove the main drive assembly	74
Install the main drive assembly	84
Fuser drive assembly	89
Remove the fuser drive assembly	89
Install a replacement fuser drive assembly	91
Fuser gear assembly	93
Remove the fuser gear assembly	93
Install a replacement fuser gear assembly	99
Paper delivery assembly	101
Remove the delivery assembly	101
Reinstall the paper delivery assembly	102
Duplex drive assembly (duplex models)	104
Remove the duplex-drive assembly	104
Delivery drive assembly (simplex models)	106
Remove the delivery drive assembly	106
Residual-toner-feed assembly	107
Remove the residual-toner-feed assembly	107
ITB motor (M1)	109
Remove the ITB motor	109
Drum motor (M2)	111
Remove the drum motor	111
Developing motor (M3)	112
Remove the developing motor	112
Fuser motor (M4)	113
Remove the fuser motor	113
Developing-disengagement motor (M6)	114
Remove the developing-disengagement motor	114
Power-supply fan (FM1)	115
Remove the power-supply fan	115
Fuser fan (FM2)	118
Remove the fuser fan	118
Formatter fan (FM3) and ICB PCA	120
Remove the formatter fan and ICB PCA	120
DC controller PCA	123
Remove the DC controller PCA	123
Low-voltage power supply	125
Remove the low-voltage power supply	125
Imaging (developing) high-voltage power supply	128
Remove the imaging (developing) high-voltage power supply	128
First transfer high-voltage power supply	129
Remove the first transfer high-voltage power supply	129
Second transfer high-voltage power supply	131
Remove the second transfer high-voltage power supply	131
Driver PCA	133
Remove the driver PCA	133
Power switch PCA	135
Remove the power switch PCA	135
Environmental sensor	136
Remove the environmental sensor	136
1 x 500-sheet paper feeder assembly	137
1 x 500 rear cover	137
1 x 500 left cover	138
1 x 500 right-front cover	140
1 x 500 front-upper cover	141
1 x 500 right door	142
1 x 500 right-lower cover	144
1 x 500 pickup assembly	145
1 x 500 lifter-drive assembly	148
1 x 500 pickup motor	149
1 x 500 driver PCA	150
3 x 500-sheet paper feeder (optional accessory)	151
3 x 500 rear cover	151
3 x 500 right and left cassette rails	152
3 x 500 paper deck controller PCAs	153
3 x 500 paper deck lifter drive assembly	154
3 x 500 paper deck pickup motor	155
3 x 500 front-lower cover	156
3 x 500 left cover	157
3 x 500 right-corner cover	158
3 x 500 right-door assembly	159
3 x 500 right-lower cover 1	161
3 x 500 right-lower cover 2	162
3 x 500 left-lower cover	163
3 x 500 rear-lower cover	164
Remove the 3 x 500 rear-lower cover	164
3 x 500 paper deck pickup assembly	165