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HP 1320 Service Manual - Page 143

Main gear assembly/tray 2 pickup solenoid,

UPC - 829160406831

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Main gear assembly/tray 2 pickup solenoid 1. Remove all covers (see Covers). 2. Remove the fan from the printer chassis (see steps 3 and 4 of Fan). 3. Disconnect one cable (callout 1) at the ECU. Figure 6-48. Removing the main gear assembly (1 of 2) 4. Remove the duplex-drive PCA from the printer chassis (see steps 3 and 4 of Duplex- drive PCA). 5. Release the tab on the gear (callout 2) and slide the gear off of the shaft. 6. Remove the cables from the cable guide (callout 3). ENWW Main gear assembly/tray 2 pickup solenoid 131

Section	Page
Product Information	13
Chapter contents	13
Printer configurations	14
HP LaserJet 1160 and HP LaserJet 1320 Series printers base models	15
Features	16
HP LaserJet 1160 printer	16
HP LaserJet 1320 Series printer	16
HP LaserJet 1320n printer	17
HP LaserJet 1320tn printer	17
HP LaserJet 1320nw printer	17
Specifications	18
Physical specifications	18
Printer capacities and ratings	18
Memory specifications	19
Port availability	19
Electrical specifications	20
Acoustic emissions	22
Environmental specifications	22
Print media specifications	23
Supported media sizes	23
Hewlett-Packard limited warranty statement	24
Hewlett-Packard software license agreement	25
Print cartridge limited warranty	26
HP LaserJet printing supplies	27
Declaration of Conformity statements	28
Country/region-specific safety statements	30
Laser safety statement	30
Canadian DOC regulations	30
Korean EMI statement	30
Laser statement for Finland	31
Installation	33
Chapter contents	33
Operating environment	34
Printer connections	34
Software	36
Supported operating systems	36
Software for Windows	37
Software for Macintosh computers	39
Operation	41
Chapter contents	41
Printer control panel	42
Status-light patterns	43
Printer information pages	49
Demo page	49
Configuration page	49
Supplies Status page	49
Network Configuration page	49
Using the HP Toolbox	50
Supported operating systems	50
Supported browsers	50
To view the HP Toolbox on Windows systems	51
To view the HP Toolbox on Macintosh systems	51
HP Toolbox sections	51
Other links	51
Status tab	51
Troubleshooting tab	52
Alerts tab	52
Documentation tab	52
Advanced Printer Settings window	53
Network window	53
Using the embedded Web server	54
To open the embedded Web server	54
Information tab	55
Settings tab	55
Networking tab	55
Other links	56
Wireless printing	57
IEEE 802.11b/g standard	57
Bluetooth	57
Maintenance	59
Chapter contents	59
Replacing the print cartridge	60
To replace the print cartridge	60
Cleaning the printer	61
Cleaning the print-cartridge area	61
Cleaning the printer media path	63
Changing the pickup roller	64
Cleaning the pickup roller	70
Changing the printer separation pad	71
Cleaning the printer separation pad	75
Theory of operation	77
Chapter contents	77
Introduction	78
Internal components	79
Timing	80
Engine control system	82
Laser/scanner system	84
Pickup/feed/delivery system	85
Image-formation system	87
Removal and replacement	91
Chapter contents	91
Introduction	92
Removal and replacement strategy	92
Electrostatic discharge	92
User-replaceable parts	92
Required tools	92
Before performing service	93
Pre-service procedures	93
Parts removal order	93
Covers	94
Left-side cover	94
Right-side cover	96
Back cover	98
Duplexer tray	101
Top cover	102
Control panel	105
Formatter	107
Laser/scanner	108
Memory-tag-reader assembly	109
Duplex-drive PCA	111
Fuser	113
Fan	113
Duplex-drive gears/face-down gears	115
Duplex solenoid (SL3) (HP LaserJet 1320 Series printers only)	118
Fuser	119
Interlock assembly	129
ECU	131
Main motor	139
Pickup and feed assemblies	141
Transfer roller	141
Registration assembly	142
Main gear assembly/tray 2 pickup solenoid	143
Print-cartridge door	147
Wireless communications card	149
Troubleshooting	151
Chapter contents	151
Basic troubleshooting	153
Paper-handling problems	156
Paper jam	156
Print is skewed (crooked)	156
More than one sheet of media feeds through the printer at one time	156
Printer does not pull media from the media input tray	157
Printer curled the media	157
Printed media does not exit to the correct path	157
Print job is extremely slow	157
Paper-path troubleshooting	158
Solving print paper-feed problems	158
Printed page is different than what appeared on screen	160
Garbled, incorrect, or incomplete text	160
Missing graphics or text, or blank pages	160
Page format is different than on another printer	161
Graphics quality	161
Status light patterns	162
Fatal error secondary messages	168
Accessory error secondary messages	171
Troubleshooting postscript (PS) errors	172
Image troubleshooting	173
Print cartridge problems	173
Solving image-quality problems	174
Clearing jams	182
Print-cartridge area	182
Input trays	184
Output bin	188
Straight-through output path	188
Automatic two-sided printing (duplexing) path	190
Functional checks	194
Engine test	194
Printing an engine test	194
Half self-test functional check	195
To perform a half self-test check	195
To perform other checks	195
Drum rotation functional check	196
Heating element check	197
High-voltage contacts check	198
To check the print cartridge contacts	198
To check the high-voltage connector assembly	198
Wired network setup problemsolving	199
NVRAM initialization	200
Cold reset	201
Troubleshooting tools and reference diagrams	202
Repetitive image defects	202
General timing chart	203
Circuit diagram	204
Solenoids	206
Switches and sensors	207
Rollers and pads	208
Parts and diagrams	209
Chapter contents	209
Ordering parts and supplies	210
Parts	210
Related documentation and software	210
Supplies	210
Consumables and accessories	211
Assembly locations	214
Covers	218
Internal assemblies	220
Alphabetical parts list	238
Numerical parts list	242