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HP 2420 Service Manual - Page 288

Printer Dialog Extensions PDEs, Macintosh, removing HP Toolbox

UPC - 829160289205

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primary charging stage 72 print cartridge door, removing 130 print cartridges cleaning near 58 error messages 197, 199 features 6 life expectancy 54 low toner message 55 memory tag 76 non-HP 53 operations 71 out of toner message 55 paper jams, clearing 175 recycling 18 status, viewing with embedded Web server 41 status, viewing with HP Toolbox 45 storing 53 supplies status page 51, 153 supply level, checking 54 warranty 17 print jobs formatted incorrectly 147 not printing, troubleshooting 146 stopped, troubleshooting 147 print quality, troubleshooting 201 Printer Dialog Extensions (PDEs), Macintosh 27 printer drivers. See drivers printer languages 5 Printer Status and Alerts 156 processor speed 5 ProRes 4 PS error pages troubleshooting 146 PS font list, printing 52 Q quality, troubleshooting 201 R RAM disk errors 198 Range Check, troubleshooting 221 Ready light 33 recycling supplies 18 registration assembly diagrams 222 removing 134 regulatory statements 19 removing HP Toolbox 48 removing parts 78, 79 repeating defects, troubleshooting 207 repeating images, troubleshooting 212 replacing parts 78, 79 reset, cold 163 Resets menu 159 resolution features 4 troubleshooting quality 201 274 Index right-side cover locating 2 removing 81 right-side handle, removing 106 rollers diagrams 223 face-down shaft, removing 128 locating 63 transfer, removing 133 tray 1 pickup, removing 137 tray 2 pickup, removing 138 S Save + Restore 165 screwdrivers, required 78 screws, replacing 78 self test 165 sensors diagrams 224 operations 69 separation pad locating 63 removing 140 separation stage 74 serial cables, troubleshooting 146 serial number 49 service ID 161 Service menu 161 setting up printer 24 settings cold reset 163 configuration page, printing 49 Resets menu 159 Settings tab, embedded Web server 41 size specifications paper 11 printer 8 skewed pages 182, 208 skip disk-load 165 Sleep mode power specifications 9 settings 159 slow printing, troubleshooting 147, 170 smeared toner, troubleshooting 206 software HP Toolbox 44 Linux 26 Macintosh, included 27 operating systems supported 25 ordering 234 Printer Status and Alerts 156 solenoids diagrams 225 operations 69 tray 1, removing 124 tray 2, removing 125 space requirements 24 ENWW

Section	Page
Product Information	15
Chapter contents	15
Printer configurations	16
HP LaserJet 2400 Series printer base models	16
Features	18
Specifications	22
Physical specifications	22
Electrical specifications	23
Acoustic emissions	24
Operating environment	24
Media specifications	25
Supported types and sizes of print media	25
Paper and print media	26
Printing and paper storage environment	27
Envelopes	28
Envelopes with double side seams	28
Envelopes with adhesive strips or flaps	28
Envelope margins	29
Envelope storage	29
Labels	29
Transparencies	29
Hewlett-Packard limited warranty statement	30
Print Cartridge Limited Warranty Statement	31
HP LaserJet printing supplies	32
Declaration of conformity	33
Country-/region-specific safety statements	34
Laser safety statement	34
Canadian DOC statement	34
Japanese VCCI statement	34
Korean EMI statement	34
Finnish laser statement	35
Installation	37
Chapter contents	37
Operating environment	38
Interface ports	38
Software	39
Operating systems and printer components	39
Printer drivers	40
Software for Macintosh computers	41
Operation	43
Chapter contents	43
Control panel	45
Control-panel layout	45
Control-panel buttons	46
Control-panel lights	47
Control-panel language	48
Printing control-panel menus	48
Selecting which tray is used for printing	49
Understanding tray order	49
Customizing tray 1 operation	50
Printing by type and size of media (locking trays)	51
Feeding media from tray 1 manually	52
Selecting the correct fuser mode	53
Using the embedded Web server	54
Opening the embedded Web server	54
Information tab	55
Settings tab	55
Networking tab	56
Other links	56
Using HP Web Jetadmin software	57
Using the HP Toolbox	58
Supported operating systems	58
Supported browsers	58
To view the HP Toolbox	59
Status tab	59
Troubleshooting tab	60
Alerts tab	60
Documentation tab	61
Device Settings window	61
Toolbox links	61
Other links	61
Uninstalling the HP Toolbox	62
To uninstall the HP Toolbox by using the Windows desktop shortcut	62
Checking the printer configuration	62
Menu map	62
Configuration page	63
Supplies status page	65
PS or PCL font list	66
Managing the print cartridge	67
HP print cartridges	67
Non-HP print cartridges	67
Print-cartridge authentication	67
Print-cartridge storage	67
Print-cartridge life expectancy	68
Checking the supply level	68
Cartridge-low and cartridge-out conditions	69
Maintenance	71
Chapter contents	71
Cleaning the printer	72
Cleaning the outside	72
Cleaning the paper path and print-cartridge areas	72
Cleaning the fuser	74
Theory of operation	75
Chapter contents	75
Introduction	76
Internal components	77
Timing	78
Engine control system	80
Laser/scanner system	82
Pickup/feed/delivery system	83
Image-formation system	85
Step 1: Primary charging	86
Step 2: Laser beam exposure	86
Step 3: Developing	87
Step 4: Transfer	87
Step 5: Separation	88
Step 6: Fusing	88
Step 7: Drum cleaning	89
Print cartridge memory system	90
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	94
Covers	95
Right-side cover	95
Back cover	96
I/O cover	99
Left-side cover	100
Top, right cover	102
Top cover	103
Front, right cover	104
Control panel	106
Formatter	108
Fuser	112
Laser/scanner	117
Right-side handle	120
ECU	122
Access plate	128
Power supply	129
Gear assembly	134
Tray 1 solenoid	138
Tray 2 solenoid	139
E-label reader (memory tag)	140
Face-down-roller shaft	142
Cartridge door	144
Transfer roller	147
Registration assembly	148
Tray 1 pickup roller	151
Tray 2 pickup roller	152
Separation pad	154
Troubleshooting	155
Chapter contents	155
Troubleshooting tree	157
Troubleshooting flowchart	158
1. Does the control-panel display show READY?	158
2. Can you print a configuration page?	159
3. Can you print from a program?	160
4. Does the job print as expected?	161
5. Does the printer select the correct trays?	162
Troubleshooting tools	163
Information pages	163
Embedded Web server	168
Gaining access to the embedded Web server	168
Printer Status and Alerts software	170
Control-panel menus	172
Using control-panel menus	172
Resets submenu	173
Diagnostics menu	173
Service menu (service PIN codes)	175
Printer resets and power-on modes	177
Cold reset	177
NVRAM initialization	178
Hard-disk initialization	178
Power-on bypass	179
Save + Restore	179
Test pages	180
Engine-test page	180
Formatter test page	180
Interface troubleshooting	181
Communications checks	181
EIO troubleshooting	181
Solving general printing problems	183
Clearing jams	187
Avoiding jams	187
Typical jam locations	188
Media handling problems	195
Multiple pages feed	195
Pages are wrinkled or folded	196
Pages are skewed	196
Understanding printer messages	197
Using the printer online Help system	197
Resolving persistent messages	197
Correcting print-quality problems	215
Print-quality checklist	215
Image-defect examples	215
Light print (partial page)	217
Light print (entire page)	217
Specks	218
Dropouts	218
Lines	219
Gray background	219
Toner smear	220
Loose toner	220
Repeating defects	221
Repeating image	221
Misformed characters	222
Page skew	222
Curl or wave	223
Wrinkles or creases	223
Vertical white lines	224
Tire tracks	224
White spots on black	225
Scattered lines	225
Blurred print	226
Random image repetition	226
Troubleshooting common Windows problems	227
Troubleshooting common Macintosh problems	228
Troubleshooting common PostScript problems	234
General problems	234
Specific errors	234
Printer component locations	236
Main assemblies	236
Main parts	237
Sensors and switches	238
Motors, fans, and solenoids	239
PCAs	240
500-Sheet paper feeder	241
Wiring diagrams	242
General timing diagrams	245
Parts and diagrams	247
Chapter contents	247
Ordering parts and supplies	248
Parts	248
Related documentation and software	248
Supplies	248
Accessories	249
Covers	252
Internal components	254
Tray 2 pickup assembly	268
Alphabetical parts list	270
Numerical parts list	276

Match case Limit results 1 per page

primary charging stage

print cartridge door, removing

130

print cartridges

cleaning near

error messages

197, 199

features

life expectancy

low toner message

memory tag

non-HP

operations

out of toner message

paper jams, clearing

175

recycling

status, viewing with embedded Web server

status, viewing with HP Toolbox

storing

supplies status page

51, 153

supply level, checking

warranty

print jobs

formatted incorrectly

147

not printing, troubleshooting

146

stopped, troubleshooting

147

print quality, troubleshooting

201

Printer Dialog Extensions (PDEs), Macintosh

printer drivers.

See

drivers

printer languages

Printer Status and Alerts

156

processor speed

ProRes

PS error pages

troubleshooting

146

PS font list, printing

quality, troubleshooting

201

RAM disk errors

198

Range Check, troubleshooting

221

Ready light

recycling supplies

registration assembly

diagrams

222

removing

134

regulatory statements

removing HP Toolbox

removing parts

78, 79

repeating defects, troubleshooting

207

repeating images, troubleshooting

212

replacing parts

78, 79

reset, cold

163

Resets menu

159

resolution

features

troubleshooting quality

201

right-side cover

locating

removing

right-side handle, removing

106

rollers

diagrams

223

face-down shaft, removing

128

locating

transfer, removing

133

tray 1 pickup, removing

137

tray 2 pickup, removing

138

Save + Restore

165

screwdrivers, required

screws, replacing

self test

165

sensors

diagrams

224

operations

separation pad

locating

removing

140

separation stage

serial cables, troubleshooting

146

serial number

service ID

161

Service menu

161

setting up printer

settings

cold reset

163

configuration page, printing

Resets menu

159

Settings tab, embedded Web server

size specifications

paper

printer

skewed pages

182, 208

skip disk-load

165

Sleep mode

power specifications

settings

159

slow printing, troubleshooting

147, 170

smeared toner, troubleshooting

206

software

HP Toolbox

Linux

Macintosh, included

operating systems supported

ordering

234

Printer Status and Alerts

156

solenoids

diagrams

225

operations

tray 1, removing

124

tray 2, removing

125

space requirements

274

Index

ENWW