HP P3015 Service Manual

							Configuration page .......................................................................................... 172
Print quality troubleshooting tools .................................................................................... 173 Repetitive image-defect ruler .......................................................................... 173
Control-panel menus ....................................................................................................... 174 Use the menus ................................................................................................ 174
Show Me How menu ....................................................................................... 174
Retrieve job menu ........................................................................................... 175
Information menu ............................................................................................ 176
Paper handling menu ...................................................................................... 177
Manage supplies menu ................................................................................... 177
Configure device menu ................................................................................... 178Printing menu ................................................................................. 178
Print Quality menu .......................................................................... 180
System setup menu ........................................................................ 183
I/O menu ......................................................................................... 187
Resets menu .................................................................................. 194
Diagnostics menu ............................................................................................ 194
Service menu .................................................................................................. 196
Interpret control-panel messages .................................................................................... 197 Control-panel message types ......................................................................... 197
Control-panel messages ................................................................................. 197
Event-log messages ........................................................................................................ 215 Print an event log ............................................................................................ 215
Show an event log ........................................................................................... 215
Sample event-log page ................................................................................... 216
Clear an event log ........................................................................................... 216
Event-log messages ........................................................................................ 217
Clear jams .................................................................................................................... .................... 219
Common causes of jams ................................................................................................. 219
Jam locations ................................................................................................................. .. 220
Clear jams from the input trays ........................................................................................ 222
Clear jams from the duplexer ........................................................................................... 226
Clear jams from the output areas .................................................................................... 231
Clear jams from inside the product .................................................................................. 234 Registration and transfer area ......................................................................... 234
Jam causes and solutions ............................................................................................... 236
Avoid repeated jams  ....................................................................................................... 24 0
Change jam recovery ....................................................................................................... 241
Solve paper-handling problems ................................................................................................. ....... 242
Product feeds multiple sheets .......................................................................................... 242
Product feeds incorrect page size ................................................................................... 242
Product pulls from incorrect tray ...................................................................................... 243
Paper does not feed automatically .................................................................................. 243
Paper does not feed from Tray 2, 3, or 4 ......................................................................... 244
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							Transparencies or glossy paper will not feed .................................................................. 244
Envelopes jam or will not feed in the product .................................................................. 245
Output is curled or wrinkled ............................................................................................. 245
Product does not duplex or duplexes incorrectly (duplex models) .................................. 246
Solve image-quality problems .................................................................................................. ........ 247
Image defect examples .................................................................................................... 247
Clean the product ............................................................................................................. ................ 254
Solve performance problems .................................................................................................... ....... 257
Solve connectivity problems ................................................................................................... .......... 258
Solve direct-connect problems ........................................................................................ 258
Solve network problems .................................................................................................. 258
Service mode functions ........................................................................................................ ............ 259
Service menu .................................................................................................................. . 259
Product resets ................................................................................................................ .. 260
Restore factory settings .................................................................................. 260
Hard disk initialization ..................................................................................... 260
Skip disk-load .................................................................................................. 260
NVRAM initialization ........................................................................................ 260 Service ID ....................................................................................... 261
Restore service ID .......................................................................... 261
Convert the service ID to an actual date ........................................ 261
Reset serial number ....................................................................... 262
Reset page counts .......................................................................... 262
Product cold reset ........................................................................................... 262
Product updates ............................................................................................................... ................ 263
Determine the current firmware version ........................................................................... 263
Download new firmware from the HP Web site ............................................................... 263
Transfer the new firmware to the product ........................................................................ 263 Use the flash executable file to update the firmware ...................................... 263
Use FTP to upload the firmware through a browser ....................................... 264
Use FTP to upgrade the firmware on a network connection ........................... 264
Use HP Web Jetadmin to upgrade the firmware ............................................. 265
Use Microsoft Windows commands to upgrade the firmware ......................... 265
Upgrade the HP Jetdirect firmware .................................................................................. 265
4  Parts and diagrams Order parts by authorized service providers .............. ...................................................................... 268
Order parts, accessories, and supplies ........................................................................... 268
Related documentation and software .............................................................................. 268
Supplies part numbers ..................................................................................................... 268
Accessories part numbers ............................................................................................... 269
Whole-unit replacement part numbers ............................................................................. 270
How to use the parts lists and diagrams ....................................................................................... ... 271
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							Assembly locations ........................................................................................................................... 272
Base product (no optional trays  or accessories) .............................................................. 272
Base product (optional trays or  accessories) ................................................................... 273
Covers ........................................................................................................................ ...................... 274
Internal assemblies (1 of 6) .................................................................................................. ............ 276
Internal assemblies (2 of 6) .................................................................................................. ............ 278
Internal assemblies (3 of 6) .................................................................................................. ............ 280
Internal assemblies (4 of 6) .................................................................................................. ............ 282
Internal assemblies (5 of 6) .................................................................................................. ............ 284
Internal assemblies (6 of 6) .................................................................................................. ............ 286
Input devices ................................................................................................................. ................... 288
500-sheet input tray (Tray 3 and Tray 4) ......................................................................... 288
Alphabetical parts list ....................................................................................................................... 290
Numerical parts list .......................................................................................................... ................. 293
Appendix A  Service and support Hewlett-Packard limited warranty statement ....................................................................................  298
HPs Premium Protection Warranty: LaserJet print cartridge limited warranty statement ................ 299
End User License Agreement .................................................................................................... ...... 300
Customer self-repair warranty service ......................................................................................... ..... 302
Customer support .............................................................................................................. ............... 303
Repack the product ............................................................................................................ .............. 304
Service information form ...................................................................................................... ............ 305
Appendix B  Specifications Physical specifications ....................................................................................................... .............. 308
Electrical specifications ..................................................................................................... ............... 308
Acoustic specifications ....................................................................................................... .............. 308
Environmental specifications .................................................................................................. .......... 309
Appendix C  Regulatory information FCC regulations ............................................................................................................... ................ 312
Environmental product stewardship program ............... .................................................................... 313
Protecting the environment .............................................................................................. 313
Ozone production ............................................................................................................ 3 13
Power consumption ......................................................................................................... 313
Toner consumption .......................................................................................................... 31 3
Paper use ..................................................................................................................... ... 313
Plastics ...................................................................................................................... ...... 313
HP LaserJet print supplies ............................................................................................... 313
Return and recycling instructions ..................................................................................... 314 United States and Puerto Rico ........................................................................ 314Multiple returns (more than one cartridge) ..................................... 314
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							Single returns ................................................................................. 314
Shipping .......................................................................................... 314
Non-U.S. returns .............................................................................................  314
Paper ......................................................................................................................... ......  314
Material restrictions ......................................................................................................... . 315
Disposal of waste equipment by users in private households in the European Union ....  315
Chemical substances ....................................................................................................... 315
Material Safety Data Sheet (MSDS) ................................................................................  316
For more information .......................................................................................................  31 6
Declaration of conformity ..................................................................................................... ............. 317
Safety statements ............................................................................................................. ................ 318
Laser safety .................................................................................................................. ...  318
Canadian DOC regulations .............................................................................................. 318
VCCI statement (Japan) ..................................................................................................  318
Power cord statement (Japan) ......................................................................................... 318
EMC statement (Korea) ...................................................................................................  318
Laser statement for Finland .............................................................................................  319
Substances Table (China) ...............................................................................................  320
Index ......................................................................................................................... ........................................ 321
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							1 Theory of operation
●Basic operation
●
Formatter-control system
●
Engine-control system
●
Image-formation system
●
Pickup, feed, and delivery system
●
Tray 1 or Tray 2
●
Additional tray
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							Basic operation
Major printer systems
The product contains the following five systems:
●Engine-control system
● Laser/scanner system
● Image-formation system
● Media feed system
● Option
Printer block diagram
Figure 1-1
  Printer block diagram
MEDIA FEED SYSTEM
LASER SCANNER SYSTEM
ENGINE CONTROL SYSTEM IMAGE-FORMATION SYSTEM
OPTION
2 Chapter 1   Theory of operation ENWW 
						

							Sequence of operation
The DC controller in the engine-control system controls the operational sequences of the printer. The
table below describes durations and operations for each period of a print operation from when the printer
is turned on until the motor stops rotating
Normal sequence of operation
Table 1-1  Sequence of operation
NameTimingPurpose
WAITFrom the time the power switch is turned on or the
door is closed until the printer is ready for a print
operation.Brings the product to printable condition. The product
performs the following during the operation:
●Detects the print cartridge
STBY (standby)From the end of the WAIT or LSTR period until either
a print command is sent or the power switch is turned
off.Maintains the product in printable condition.
INTR (initial
rotation)From the time the print command is received until the
temperature of the fuser unit reaches its targeted
temperature.Starts up the high-voltage biases, the laser/scanner
and the fuser unit for printing.
PRINTFrom the end of the INTR period until the last sheet
completes the fuser operation.Forms the image on the photosensitive drum based
on the VIDEO signals from the formatter. Transfers
and fuses the toner image to the paper.
LSTR (last
rotation) From the end of the PRINT period until the main motor
stops rotating. Moves the last printed sheet out of the product.
The product enters the INTR period as the LSTR
period is completed, if the formatter sends another
print command.
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Basic operation 3 
						

							Formatter-control system
The formatter is responsible for the following procedures:
●Controlling sleep mode
● Receiving and processing print data from the various product interfaces
● Monitoring control-panel functions and relaying product-status information (through the control
panel and the network or bidirectional interface)
● Developing and coordinating data placement and timing with the DC controller PCA
● Storing font information
● Communicating with the host computer through the network or the bidirectional interface
The formatter receives a print job from the network or bidirectional interface and separates it into image
information and instructions that control the printing process. The DC controller PCA synchronizes the
image-formation system with the paper-input and -output systems, and then signals the formatter to
send the print-image data.
The formatter also provides the electrical interface and mounting locations for one EIO card and an
additional DIMM.
Sleep mode
NOTE: In the SYSTEM SETUP  menu, this item is termed SLEEP DELAY.
This feature conserves power after the product has been idle for an adjustable period of time. When the
product is in SLEEP DELAY , the control-panel backlight is turned off, but the product retains all settings,
downloaded fonts, and macros. The default setting is for  SLEEP DELAY to be enabled, and the product
enters  SLEEP DELAY  after a 30-minute idle time.
The product exists  SLEEP DELAY and enters the warm-up cycle when any of the following events
occur:
● A print job, valid data, or a PML or PJL command is received
● A control-panel button is pressed
● A cover is opened
● A paper tray is opened
● The engine-test switch is pressed
NOTE:
Product error messages override the Sleep message. The product enters  SLEEP DELAY at
the appropriate time, but the error message continues to appear.
Input/output
The product receives print data primarily from the embedded HP Jetdirect print server. The product also
has a USB 2.0 port for connecting directly to a computer.
CPU
The formatter incorporates a 540 MHz Coldfire processor.
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							Memory
The random access memory (RAM) on the formatter PCA contains the page, I/O buffers, and the font
storage area. It stores printing and font information received from the host system, and can also serve
to temporarily store a full page of print-image data before the data is sent to the print engine. Memory
capacity can be increased by adding a DIMM to the formatter. Note that adding memory might also
increase the print speed for complex graphics.
NOTE:If the product encounters a problem when managing available memory, a clearable warning
message appears on the control-panel display.
Optional hard disk
This product supports an optional EIO hard disk or an optional secure hard disk as an accessory.
Firmware
The firmware is contained on NAND flash memory soldered on the formatter board. A remote firmware
upgrade process is available, which overwrites the firmware in the NAND flash.
Nonvolatile memory
The product uses nonvolatile memory (NVRAM) to store device and user configuration settings. The
contents of NVRAM are retained when the product is turned off or disconnected.
PJL overview
The printer job language (PJL) is an integral part of configuration, in addition to the standard printer
command language (PCL). With standard cabling, the product can use PJL to perform a variety of
functions such as these:
● Two-way communication with the host computer through a network connection or a USB
connection. The product can inform the host about such things as the control-panel settings, and
the control-panel settings can be changed from the host.
● Dynamic I/O switching. The product uses this switching to be configured with a host on each I/O.
The product can receive data from more than one I/O simultaneously, until the I/O buffer is full.
This can occur even when the product is offline.
● Context-sensitive switching. The product can automatically recognize the personality (PS or PCL)
of each job and configure itself to serve that personality.
● Isolation of print environment settings from one print job to the next. For example, if a print job is
sent to the product in landscape mode, the subsequent print jobs print in landscape mode only if
they are formatted for landscape printing.
PML
The printer management language (PML) allows remote configuration and status read-back through the
I/O ports.
Control panel
The formatter sends and receives product status and command data to and from the control-panel PCA.
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							Engine-control system
The engine-control system coordinates all product functions, according to commands that the formatter
sends. The engine-control system drives the laser/scanner system, the image formation system, and
the pickup/feed/delivery system.
The engine control system contains the following major components:
●Engine-control unit (ECU)
◦DC controller
◦ Low-voltage power supply
● High-voltage power supply
Figure 1-2   Engine-control system
Engine controller
DC controller
High-voltage
power suppl y Low-voltage
power suppl y
Formatter LASER SCANNER SYSTEM
IMAGE-FORMATION SYSTEM MEDIA FEED SYSTEM
ENGINE CONTROL SYSTEM
OPTION
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