HP LaserJet 1160, 1320, Service Manual

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List of figures

Figure 1-1.

Front/right-side view...........................................................................................

3

Figure 1-2.

Rear/left-side view..............................................................................................

3

Figure 2-1.

USB connection...............................................................................................

22

Figure 2-2.

Parallel connection...........................................................................................

22

Figure 2-3.

Network connection..........................................................................................

23

Figure 2-4.

Wireless connection, infrastructure mode........................................................

23

Figure 2-5.

Wireless connection, ad hoc mode..................................................................

23

Figure 5-1.

Block diagram...................................................................................................

66

Figure 5-2.

Cross-section of printer....................................................................................

67

Figure 5-3.

Engine control system......................................................................................

70

Figure 5-4.

Engine control system circuit diagram.............................................................

71

Figure 5-5.

Laser/scanner system......................................................................................

72

Figure 5-6.

Pickup/feed/delivery system............................................................................

74

Figure 5-7.

Image-formation system...................................................................................

75

Figure 5-8.

Primary charging..............................................................................................

75

Figure 5-9.

Developing.......................................................................................................

76

Figure 5-10.

Transfer............................................................................................................

76

Figure 5-11.

Separation........................................................................................................

77

Figure 5-12.

Fusing...............................................................................................................

77

Figure 5-13.

Drum cleaning..................................................................................................

78

Figure 6-1.

Removing the left-side cover (1 of 2)...............................................................

82

Figure 6-2.

Removing the left-side cover (2 of 2)...............................................................

83

Figure 6-3.

Removing the right-side cover (1 of 2).............................................................

84

Figure 6-4.

Removing the right-side cover (2 of 2).............................................................

85

Figure 6-5.

Removing the back cover (1 of 2)....................................................................

86

Figure 6-6.

Removing the back cover (2 of 2)....................................................................

87

Figure 6-7.

Reinstalling the back cover..............................................................................

88

Figure 6-8.

Removing the duplexer tray.............................................................................

89

Figure 6-9.

Removing the top cover (1 of 3).......................................................................

90

Figure 6-10. Removing the top cover (2 of 3).......................................................................

91

Figure 6-11. Removing the top cover (3 of 3).......................................................................

92

Figure 6-12.

Removing the control panel (1 of 2).................................................................

93

Figure 6-13.

Removing the control panel (2 of 2).................................................................

94

Figure 6-14.

Removing the formatter....................................................................................

95

Figure 6-15.

Removing the memory-tag-reader assembly (1 of 2)......................................

97

Figure 6-16.

Removing the memory-tag-reader assembly (2 of 2)......................................

98

Figure 6-17.

Removing the duplex-drive PCA (1 of 2).........................................................

99

Figure 6-18.

Removing the duplex-drive PCA (2 of 2).......................................................

100

Figure 6-19.

Removing the fan (1 of 2)..............................................................................

101

Figure 6-20.

Removing the duplex-drive gears/face-down gears......................................

103

Figure 6-21.

Duplex-drive gears (HP LaserJet 1320 Series printers)................................

104

Figure 6-22.

Face-down gears (HP LaserJet 1160 printers)..............................................

105

Figure 6-23.

Removing the duplex solenoid.......................................................................

106

Figure 6-24.

Removing the fuser (1 of 10).........................................................................

107

Figure 6-25.

Removing the fuser (2 of 10).........................................................................

108

Figure 6-26.

Removing the fuser (3 of 10).........................................................................

109

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ix

Figure 6-27.

Removing the fuser (4 of 10).........................................................................

110

Figure 6-28.

Removing the fuser (5 of 10).........................................................................

111

Figure 6-29.

Removing the fuser (6 of 10).........................................................................

112

Figure 6-30.

Removing the fuser (7 of 10).........................................................................

113

Figure 6-31.

Removing the fuser (8 of 10).........................................................................

114

Figure 6-32.

Removing the fuser (9 of 10).........................................................................

115

Figure 6-33.

Removing the fuser (10 of 10).......................................................................

116

Figure 6-34.

Removing the interlock assembly (1 of 2)......................................................

117

Figure 6-35.

Removing the interlock assembly (2 of 2)......................................................

118

Figure 6-36.

Removing the ECU (1 of 8)............................................................................

119

Figure 6-37.

Removing the ECU (2 of 8)............................................................................

120

Figure 6-38.

Removing the ECU (3 of 8)............................................................................

121

Figure 6-39.

Removing the ECU (4 of 8)............................................................................

122

Figure 6-40.

Removing the ECU (5 of 8)............................................................................

123

Figure 6-41.

Removing the ECU (6 of 8)............................................................................

124

Figure 6-42.

Removing the ECU (7 of 8)............................................................................

125

Figure 6-43.

Removing the ECU (8 of 8)............................................................................

126

Figure 6-44.

Removing the main motor (1 of 2).................................................................

127

Figure 6-45.

Removing the main motor (2 of 2).................................................................

128

Figure 6-46.

Removing the transfer roller...........................................................................

129

Figure 6-47.

Removing the registration assembly..............................................................

130

Figure 6-48.

Removing the main gear assembly (1 of 2)...................................................

131

Figure 6-49.

Removing the main gear assembly (2 of 2)...................................................

132

Figure 6-50.

Removing the tray 2 pickup solenoid (1 of 2)................................................

133

Figure 6-51.

Removing the tray 2 pickup solenoid (2 of 2)................................................

134

Figure 6-52.

Removing the print-cartridge door (1 of 2).....................................................

135

Figure 6-53.

Removing the print-cartridge door (2 of 2).....................................................

136

Figure 6-54.

Removing the wireless communications card (1 of 2)...................................

137

Figure 6-55.

Removing the wireless communications card (2 of 2)...................................

138

Figure 7-1.

Location of engine-test switch........................................................................

182

Figure 7-2.

Print cartridge high-voltage connection points (right side).............................

186

Figure 7-3.

Print cartridge high-voltage connection points (left side)...............................

186

Figure 7-4.

Network Reset button.....................................................................................

187

Figure 7-5.

General timing chart.......................................................................................

191

Figure 7-6.

Circuit diagram (1 of 2)...................................................................................

192

Figure 7-7.

Circuit diagram (2 of 2)...................................................................................

193

Figure 7-8.

Solenoids........................................................................................................

194

Figure 7-9.

Switches and sensors....................................................................................

195

Figure 7-10.

Rollers and pads............................................................................................

196

Figure 8-1.

Assembly locations (1 of 2)............................................................................

202

Figure 8-2.

Assembly locations (2 of 2)............................................................................

204

Figure 8-3.

Covers............................................................................................................

206

Figure 8-4.

Internal components (1 of 4)..........................................................................

208

Figure 8-5.

Internal components (2 of 4)..........................................................................

210

Figure 8-6.

Internal components (3 of 4)..........................................................................

212

Figure 8-7.

Internal components (4 of 4)..........................................................................

214

Figure 8-8.

ECU assembly...............................................................................................

216

Figure 8-9.

Duplex-drive assembly...................................................................................

218

Figure 8-10.

Top output bin gear assembly........................................................................

220

Figure 8-11.

Tray 2 assembly.............................................................................................

222

Figure 8-12.

Duplexer.........................................................................................................

224

x

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1

Product Information

Chapter contents

 

Chapter contents........................................................................................................................

1

Printer configurations.................................................................................................................

2

HP LaserJet 1160 and HP LaserJet 1320 Series printers base models.............................

3

Features.....................................................................................................................................

4

HP LaserJet 1160 printer.....................................................................................................

4

HP LaserJet 1320 Series printer.........................................................................................

4

HP LaserJet 1320n printer...................................................................................................

5

HP LaserJet 1320tn printer..................................................................................................

5

HP LaserJet 1320nw printer................................................................................................

5

Specifications.............................................................................................................................

6

Physical specifications ........................................................................................................

6

Printer capacities and ratings .............................................................................................

6

Memory specifications ........................................................................................................

7

Port availability ....................................................................................................................

7

Electrical specifications ......................................................................................................

8

Acoustic emissions ...........................................................................................................

10

Environmental specifications ............................................................................................

10

Print media specifications .......................................................................................................

11

Supported media sizes .....................................................................................................

11

Hewlett-Packard limited warranty statement ..........................................................................

12

Hewlett-Packard software license agreement ........................................................................

13

Print cartridge limited warranty ...............................................................................................

14

HP LaserJet printing supplies .................................................................................................

15

Declaration of Conformity statements .....................................................................................

16

Country/region-specific safety statements ..............................................................................

18

Laser safety statement .....................................................................................................

18

Canadian DOC regulations ...............................................................................................

18

Korean EMI statement ......................................................................................................

18

Laser statement for Finland ..............................................................................................

19

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Chapter contents 1

Printer configurations

The HP LaserJet 1160 printer is only available in the base configuration.

The HP LaserJet 1320 Series printer is available in several configurations. The letters that follow the printer name indicate the differences between the configurations. Each letter refers to a specific feature. Use the information in this section to determine which features your model has.

Table 1-1.Feature designations for HP LaserJet 1320 Series printers

Printer Model

Description

HP LaserJet 1160 This is the base model. It includes an IEEE-1284Bparallel port and a universal serial bus (USB) port.

HP LaserJet 1320 This is the base model. It includes an IEEE-1284Bparallel port and a universal serial bus (USB) port.

HP LaserJet 1320n The printer includes the same features as HP LaserJet 1320 with an internal HP Jetdirect network port instead of the IEEE-1284Bparallel port

HP LaserJet 1320tn This printer includes the same features as HP LaserJet 1320n and adds a 250-sheetinput tray.

HP LaserJet 1320nw This printer includes the same features as HP LaserJet 1320t and adds integrated 802.11b/g wireless connectivity.

NOTE

For more information about this product, see the HP LaserJet 1320nw wireless printer user guide.

2 Chapter 1 Product Information

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HP LaserJet 1160 and HP LaserJet 1320 Series printers base models

Figure 1-1. Front/right-sideview

1Wireless light (HP LaserJet 1320nw printer only)

2Toner light

3Attention light

4Ready light

5GO button and light

6CANCELbutton

7Output bin

8Media support

9Print-cartridgedoor

10Single-sheetpriority input slot (tray 1)

11Main input tray (tray 2)

12On/off switch

Figure 1-2.

Rear/left-sideview

 

1

Straight-throughoutput door

 

2

Power receptacle

 

3

Automatic two-sidedprintingmedia-sizeselector

 

4

USB port

 

5

Parallel port (HP LaserJet 1160 and HP LaserJet 1320 printers)

 

6

Internal HP Jetdirect network port (HP LaserJet 1320n, HP LaserJet 1320tn, and

 

 

HP LaserJet 1320nw printers)

 

7

Rear automatic two-sidedpath door

 

8

Jam-clearinglevers

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Printer configurations

3

Features

The following lists describe the features of HP LaserJet 1160 and HP LaserJet 1320 Series printers.

HP LaserJet 1160 printer

20 ppm (Letter), 19 ppm (A4)

First page out in as little as 8.5 seconds

1200 dpi effective output quality (600 x 600 dpi with Resolution Enhancement technology [REt] with FastRes 1200)

250-sheetenclosed input tray (tray 2)

Single-sheetpriority input slot (tray 1)

EconoMode (saves toner)

The ability to print watermarks, booklets, and multiple pages per sheet (N-up),and to print the first page on different media from the remainder of the document

16 MB RAM

2,500-pageprint cartridge

Host-basedand PCL 5e (printer automatically determines and switches to the appropriate language)

Compatible with USB 2.0 specifications

IEEE-1284Bparallel port

Windows® 98, Windows Millennium Edition (Me), Windows NT® (parallel and printer driver only), Windows 2000, Windows Server 2003 (printer driver only), Windows XP 32bit, Windows XP64-bit(printer driver only)

Mac OS 9.2 (printer driver only) and OS X V10.1.

Power switch

HP Toolbox (provides printer status information, troubleshooting information, and printer configuration information)

26 HP PCL fonts

HP LaserJet 1320 Series printer

22 ppm (letter), 21 ppm (A4)

First page out in as little as 8.5 seconds

ProRes 1200 (provides fine-linedetail at 1200 x 1200 dpi)

600 dpi (provides 600 x 600 dpi output with Resolution Enhancement Technology [REt] for improved text)

250-sheetenclosed input tray (tray 2)

Single-sheetpriority input slot (tray 1)

Optional additional 250-sheetinput tray (tray 3) is available

Automatic two-sided(duplex) printing

4 Chapter 1 Product Information

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EconoMode (saves toner)

The ability to print watermarks, booklets, and multiple pages per sheet (N-up),and to print the first page on different media from the remainder of the document

16 MB RAM

Memory is upgradeable to 144 MB

2,500or 6,000-pageprint cartridge

PCL 6, PCL 5e, and HP postscript Level 2 emulation (printer automatically determines and switches to the appropriate language)

Compatible with USB 2.0 specifications

IEEE-1284Bparallel port

Windows 98, Windows Me, Windows NT (parallel, network, and printer driver only), Windows 2000, Windows Server 2003 (printer driver only), Windows XP 32-bit,Windows XP64-bit(printer driver only)

Mac OS 9.1 and later (printer driver only)

Mac OS X V10.1 (printer driver only), V10.2 and later

Power switch

HP Toolbox (provides printer status information, troubleshooting information, and configuration information)

46 HP PCL fonts

35 HP postscript fonts

HP LaserJet 1320n printer

The HP LaserJet 1320n printer includes all of the features of the HP LaserJet 1320 printer.

The HP LaserJet 1320n printer substitutes an internal HP Jetdirect network port for the IEEE-1284Bparallel port found on HP LaserJet 1320 printers.

HP LaserJet 1320tn printer

The HP LaserJet 1320tn printer includes all of the features of the HP LaserJet 1320n printer.

The HP LaserJet 1320tn printer adds an optional 250-sheettray (tray 3).

HP LaserJet 1320nw printer

The HP LaserJet 1320nw printer includes all of the features of the HP LaserJet 1320n printer.

The HP LaserJet 1320nw printer adds integrated 802.11b/g wireless connectivity

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Features 5

Specifications

Physical specifications

Table 1-2.Physical specifications

Dimensions

Weight (2,500-pagecartridge installed)

Width: 350 mm (16.8 inches)

Depth: 352 mm (13.9 inches)

Height: 256 mm (10.0 inches)

HP LaserJet 1160 printer: 10.7 kg (23.6 lb)

HP LaserJet 1320 Series printer: 11.3 kg (24.9 lb)

NOTE

Values are current as of April 1, 2004. Values are subject to change without notice. See

 

http://www.hp.com/support/lj1160/ or http://www.hp.com/support/lj1320/ for current

 

information.

 

Printer capacities and ratings

Table 1-3.Printer capacities and ratings

Print speed

HP LaserJet 1160 printer:

 

20 ppm (Letter), 19 ppm (A4)

 

First page out in as few as 8.5 seconds

 

HP LaserJet 1320 Series printer:

 

22 ppm (Letter), 21 ppm (A4)

 

First page out in as few as 8.5 seconds

Main input tray (tray 2) capacity

250 sheets of 75 g/m2 (20 lb) media

Single-sheetpriority input slot

1 sheet of media up to 163 g/m2 (43 lb) media or 1 envelope

(tray 1) capacity

 

Optional input tray (tray 3)

250 sheets of 75 g/m2 (20 lb) media

capacity

 

(HP LaserJet 1320 Series

 

printer or Q2485A)

 

Top (face down) output bin

125 sheets of regular weight 75 g/m2 (20 lb) paper

capacity

 

Minimum media size

76 x 127 mm (3 x 5 inches)

Maximum media size

216 x 356 mm (8.5 x 14 inches)

Media weight

Output bin: 60 to 105 g/m2 (16 to 28 lb)

 

Straight through media path: 60 to 163 g/m2 (16 to 43 lb)

Base memory

16 MB of RAM

6 Chapter 1 Product Information

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Table 1-3.Printer capacities and ratings (continued)

Memory upgrade

One DIMM slot available for a 16, 32, 64, or 128 MB RAM DIMM

(HP LaserJet 1320 Series

 

printer only)

 

Print resolution

1200 dpi: (HP LaserJet 1320 Series printer only) This setting

 

uses ProRes 1200 to provide fine-linedetail at

 

1200 x 1200 dpi.

 

1200 effective dpi: This setting provides 1200 dpi effective

 

output quality using FastRes 1200.

 

600 dpi: This setting provides 600 x 600 dpi output with

 

Resolution Enhancement technology (REt) for improved text.

Duty cycle

10,000single-sidedpages per month (maximum)

 

1,000single-sidedpages per month (average)

PCL

PCL 5e, PCL 6

HP postscript (HPLJ 1320)

Level 2 emulation

Memory specifications

Table 1-4.Memory

Base memory

16 MB RAM

Memory upgrade

100-pin,66 MHz minimum speed

Port availability

Table 1-5.Port availability

USB

Compatible with USB 2.0 specifications

Network

RJ-45,Ethernet 10/100

(HP LaserJet 1320n,

 

HP LaserJet 1320tn, and

 

HP LaserJet 1320nw printers

 

only)

 

Wireless

802.11b/g

(HP LaserJet 1320nw printer

 

only)

 

Parallel

IEEE-1284Breceptacle

(HP LaserJet 1160 and

Set host computer to ECP

HP LaserJet 1320 printers only)

 

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Specifications 7

Electrical specifications

WARNING! Power requirements are based on the country/region where the printer is sold. Do not convert operating voltages. Doing so might damage the printer and void the product warranty.

Table 1-6.Electrical specifications, HP LaserJet 1160 printer

Power requirements, 110-127V models

Power requirements, 220-240V models

Power consumption

Minimum recommended circuit capacity for typical product

110-127V(+/-10%),50/60 Hz(+/-2)

220-240V(+/-10%),50/60 Hz(+/-2Hz)

During printing (20 ppm): 340 watts (average)

During Ready (Standby) and PowerSave (instant-onfuser technology) modes: 4 watts

Off: <1 watt

4.5 amps at 115 V

2.6 amps at 230 V

Table 1-7.Electrical specifications, HP LaserJet 1320 printer

Power requirements, 110-127V models

Power requirements, 220-240V models

Power consumption

Minimum recommended circuit capacity for typical product

110-127V(+/-10%),50/60 Hz(+/-2)

220-240V(+/-10%),50/60 Hz(+/-2Hz)

During printing (22 ppm): 340 watts (average)

During Ready (Standby) and PowerSave (instant-onfuser technology) modes: 6 watts

Off: <1 watt

4.5 amps at 115 V

2.6 amps at 230 V

Table 1-8.Electrical specifications, HP LaserJet 1320n printer

Power requirements, 110-127V models

Power requirements, 220-240V models

Power consumption

Minimum recommended circuit capacity for typical product

110-127V(+/-10%),50/60 Hz(+/-2)

220-240V(+/-10%),50/60 Hz(+/-2Hz)

During printing (22 ppm): 345 watts (average)

During Ready (Standby) and PowerSave (instant-onfuser technology) modes: 6 watts

Off: <1 watt

4.5 amps at 115 V

2.6 amps at 230 V

8 Chapter 1 Product Information

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