HP Designjet T9x0, Designjet T15x0, Designjet T25x0, Designjet T3500 Service Manual

4.4 (7)

Designjet T9x0, T15x0 ePrinter Series and

T25x0, T3500 eMultifunction Series

Service Manual

Edition 3, February 17, 2017

Legal notices

© 2016 HP Development Company, L.P.

This document contains proprietary information

 

that is protected by copyright. All rights are

 

reserved. No part of this document may be

 

photocopied, reproduced, or translated to

 

another language without the prior written

 

consent of HP Development Company.

Warranty

The information contained in this document is subject to change without notice.

HP makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and tness for a particular purpose.

HP shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

Safety

The Warning symbol calls attention to a procedure, practice, or the like, which, if not correctly performed or adhered to, could result in personal injury. Do not proceed beyond a Warning symbol until the indicated conditions are fully understood and met.

The Caution symbol calls attention to an operating procedure, practice, or the like, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the printer. Do not proceed beyond a Caution symbol until the indicated conditions are fully understood and met.

Table of contents

1 Printer fundamentals ...............................................................................................................................................................................

1

Introduction ...............................................................................................................................................................................

2

Theory of operation .................................................................................................................................................................

6

2 Troubleshooting .....................................................................................................................................................................................

34

The front panel .......................................................................................................................................................................

35

Service keys combination .....................................................................................................................................................

37

Troubleshooting tree (T920 and T1500 only) ...................................................................................................................

39

Product Troubleshooting trees (T2500 and T3500 only) ...............................................................................................

41

Scanner Troubleshooting Tree ............................................................................................................................................

42

Scanner CIS Troubleshooting ...............................................................................................................................................

43

Troubleshooting using board LEDs .....................................................................................................................................

44

Paper handling problems .....................................................................................................................................................

50

Ink supply problems ..............................................................................................................................................................

70

Print-quality problems ..........................................................................................................................................................

84

Connectivity problems ........................................................................................................................................................

104

Scanning Problems ..............................................................................................................................................................

109

HP 727 Printhead Troubleshooting ..................................................................................................................................

111

Videos for replacing CSR parts and HP 727 printhead ..................................................................................................

113

Firmware upgrades .............................................................................................................................................................

114

3 System error codes ..............................................................................................................................................................................

115

Introduction ..........................................................................................................................................................................

116

What to do if the front panel fails to initialize .................................................................................................................

118

System error codes in brief ................................................................................................................................................

121

System error codes in full ..................................................................................................................................................

124

Appendix A: How to troubleshoot system error 79:04 and 79.2:04 ...........................................................................

164

Appendix B: Updating rmware in boot mode ................................................................................................................

176

Appendix C: Obtaining the diagnostics package .............................................................................................................

177

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4 Diagnostics, Service Utilities and Calibrations .................................................................................................................................

179

Introduction ..........................................................................................................................................................................

180

Diagnostic Tests and Utilities .............................................................................................................................................

181

Service Utilities .....................................................................................................................................................................

203

Service Calibrations .............................................................................................................................................................

232

5 Parts and diagrams ..............................................................................................................................................................................

240

Introduction ..........................................................................................................................................................................

240

Printer support .....................................................................................................................................................................

241

Center and Roll covers ........................................................................................................................................................

242

Rear covers ...........................................................................................................................................................................

243

Cover Front Panel Side ........................................................................................................................................................

244

Cover SVS Side ......................................................................................................................................................................

245

Center Assemblies ...............................................................................................................................................................

246

Front Panel Side Assemblies ..............................................................................................................................................

248

SVS Side Assemblies ...........................................................................................................................................................

249

Scan Axis Assemblies ..........................................................................................................................................................

250

Paper Path Assemblies (Front) ..........................................................................................................................................

251

Paper Path Assemblies (Center) ........................................................................................................................................

253

Stacker Parts (Rear) .............................................................................................................................................................

255

Stacker Parts (Front) ...........................................................................................................................................................

256

Carriage Assembly ...............................................................................................................................................................

260

Electrical Parts .....................................................................................................................................................................

261

Miscellaneous Parts .............................................................................................................................................................

263

CIS Unit Construction ...........................................................................................................................................................

265

Scanner Control Unit ...........................................................................................................................................................

266

6 Removal and installation ....................................................................................................................................................................

269

Parts list; all models ............................................................................................................................................................

270

Parts list; HP Designjet T2500 and T3500 eMultifunction Series only .......................................................................

272

Parts list; HP Designjet T2500 eMultifunction Series only ............................................................................................

273

Parts list; HP Designjet T3500 eMultifunction Series only ............................................................................................

274

Introduction ..........................................................................................................................................................................

275

Customer Self Repair parts ................................................................................................................................................

277

Service Calibration Guide to Removal and Installation ..................................................................................................

278

Main cover (front panel side) ..............................................................................................................................................

281

Main cover (service station side) .......................................................................................................................................

283

Center cover (T920 only) ....................................................................................................................................................

285

Converger Assembly ...........................................................................................................................................................

287

Cleanout ................................................................................................................................................................................

288

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Output platen .......................................................................................................................................................................

290

Fixed tray cover (Front Panel side) ....................................................................................................................................

291

Fixed tray cover (service station side) ..............................................................................................................................

292

Arch sidewall cover (front panel side) ...............................................................................................................................

293

Arch sidewall cover (service station side) ........................................................................................................................

294

Rear cover .............................................................................................................................................................................

295

Window Sensor ....................................................................................................................................................................

296

HP 727 Printhead installation tips and tricks ..................................................................................................................

298

Ink Service kit .......................................................................................................................................................................

303

Open the E-Box ....................................................................................................................................................................

304

E-Box fan ...............................................................................................................................................................................

308

Jester PCA .............................................................................................................................................................................

310

Power supply unit ................................................................................................................................................................

311

Hard disk drive .....................................................................................................................................................................

313

Engine PCA ............................................................................................................................................................................

314

Formatter PCA ......................................................................................................................................................................

315

Front panel ............................................................................................................................................................................

318

Carriage .................................................................................................................................................................................

322

Line Sensor ...........................................................................................................................................................................

326

Carriage PCA .........................................................................................................................................................................

327

Rail Oiler Kit ...........................................................................................................................................................................

329

PRS Actuator .........................................................................................................................................................................

330

Belt .........................................................................................................................................................................................

332

Encoder Strip ........................................................................................................................................................................

333

Scan Axis Motor ....................................................................................................................................................................

335

Drop Detector .......................................................................................................................................................................

338

Service Station with Drop Detector ...................................................................................................................................

339

Primer Assembly ..................................................................................................................................................................

343

ISS (Ink Supply Station) Front Panel Side .........................................................................................................................

346

ISS SVS Side ..........................................................................................................................................................................

350

Ink Tubes and Trailing Cable ..............................................................................................................................................

354

Media Sensor ........................................................................................................................................................................

357

Bottom Rewinder Support .................................................................................................................................................

359

Top Rewinder Support ........................................................................................................................................................

361

Top Tip Support ....................................................................................................................................................................

363

Bottom Tip Support .............................................................................................................................................................

364

Vertical Media Guide ............................................................................................................................................................

366

Center Support .....................................................................................................................................................................

368

Full Bleed ...............................................................................................................................................................................

369

Auto Pinch Lifter ...................................................................................................................................................................

370

Pinch Wheel Assembly ........................................................................................................................................................

376

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Motor Media Advance Transmission with Encoder .........................................................................................................

379

Starwheel Motor ..................................................................................................................................................................

387

Starwheel Support ...............................................................................................................................................................

392

Second Starwheel Rail ........................................................................................................................................................

394

Overdrive ...............................................................................................................................................................................

396

Cutter Platten .......................................................................................................................................................................

398

Sensor Valves .......................................................................................................................................................................

401

Valves Motor .........................................................................................................................................................................

404

Stacker ...................................................................................................................................................................................

405

Stacker adaptor for MFP .....................................................................................................................................................

407

Stacker Pinches ....................................................................................................................................................................

411

Stacker Hand O ..................................................................................................................................................................

412

Stacker Hand O Assy Service Kit (CR357-67041) ........................................................................................................

413

OPTO Sensor .........................................................................................................................................................................

417

REDI sensor ...........................................................................................................................................................................

419

OVD Transmission with Motor ...........................................................................................................................................

420

Ramps Motor ........................................................................................................................................................................

422

Stacker Arm Sensor .............................................................................................................................................................

424

Bump Cutter Actuator .........................................................................................................................................................

426

How to release Service Station Caps ................................................................................................................................

427

How to manually move Valves ..........................................................................................................................................

428

How to manually move Stacker Ramps ...........................................................................................................................

429

Scanner Controller Unit (SUP) ............................................................................................................................................

430

CIS Tiles .................................................................................................................................................................................

431

CIS Modules ..........................................................................................................................................................................

432

CIS FFC Cables ......................................................................................................................................................................

433

CIS Glass ................................................................................................................................................................................

434

Stepper Motor Assembly (taco sensor, and belt) ...........................................................................................................

435

Stepper Motor Assembly (cable) .......................................................................................................................................

437

Paper and Lid Sensors ........................................................................................................................................................

438

Paper and Lid Sensor Cable ...............................................................................................................................................

440

USB & Awake / Power Cable ..............................................................................................................................................

441

CIS Bridge Damper ...............................................................................................................................................................

443

CIS Scanner Latch ................................................................................................................................................................

445

Pressure Rollers ...................................................................................................................................................................

446

Front panel side scanner cover .........................................................................................................................................

447

Service station side scanner cover ....................................................................................................................................

448

Rear scanner cover ..............................................................................................................................................................

449

Bumper bracket ...................................................................................................................................................................

450

Deflector hinge .....................................................................................................................................................................

451

Lift assembly ........................................................................................................................................................................

452

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Scanner front beam bumper assembly ...........................................................................................................................

453

Scanner latch hook assembly ............................................................................................................................................

454

Top scanner cover ................................................................................................................................................................

455

Batch scanning piece ...........................................................................................................................................................

456

Card Reader Accessory .......................................................................................................................................................

457

7 Maintenance ..........................................................................................................................................................................................

458

Preventive Maintenance .....................................................................................................................................................

459

Preventive Maintenance Kits ..............................................................................................................................................

472

8 Customer Self Repair Flyers ...............................................................................................................................................................

473

Starwheel ..............................................................................................................................................................................

474

Cutter .....................................................................................................................................................................................

476

Stacker arm ..........................................................................................................................................................................

478

Ink covers ..............................................................................................................................................................................

479

Leg, front-panel side ...........................................................................................................................................................

481

Leg, service-station side .....................................................................................................................................................

484

Bottom roll cover .................................................................................................................................................................

487

Top roll cover ........................................................................................................................................................................

489

Carriage latch .......................................................................................................................................................................

491

Basket ....................................................................................................................................................................................

494

Pinch arm top roll ................................................................................................................................................................

496

Pinch arm bottom roll .........................................................................................................................................................

497

Scanner’s glass plate ..........................................................................................................................................................

498

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x

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1Printer fundamentals

Introduction

Theory of operation

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1

Introduction

This service manual contains information necessary to test, maintain, and service the following:

HP DesignJet T920 ePrinter

HP DesignJet T920 PostScript ePrinter

HP DesignJet T930 ePrinter

HP DesignJet T930 PostScript ePrinter

HP DesignJet T1500 ePrinter

HP DesignJet T1500 PostScript ePrinter

HP DesignJet T1530 ePrinter

HP DesignJet T1530 PostScript ePrinter

HP DesignJet T2500 eMultifunction

HP DesignJet T2500 PostScript eMultifunction

HP DesignJet T2530 eMultifunction

HP DesignJet T2530 PostScript eMultifunction

HP DesignJet T3500 Production eMultifunction

HP DesignJet T3500 Production PostScript eMultifunction For information about using these printers, see the user's guide.

Features overview

There are 13 versions of the HP DesignJet T9x0-T15x0–T25x0–T3500 series:

CR354A HP DesignJet T920 36-in ePrinter

CR355A/B HP DesignJet T920 36-in PostScript ePrinter

L2Y21A HP DesignJet T930 36-in ePrinter

L2Y22A/B HP DesignJet T930 36-in PostScript ePrinter

CR356A HP DesignJet T1500 36-in ePrinter

CR357A/B HP DesignJet T1500 36-in PostScript

L2Y23A HP DesignJet T1530 36-in ePrinter

L2Y24A/B HP DesignJet T1530 36-in PostScript

CR358A HP DesignJet T2500 eMultifunction

CR358A/B HP DesignJet T2500 PostScript eMultifunction

L2Y25A HP DesignJet T2530 eMultifunction

2 Chapter 1 Printer fundamentals

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L2Y26A/B HP DesignJet T2530 PostScript eMultifunction

B9E24A/B HP DesignJet T3500 Production eMFP

NOTE: As of August 2013 there are no plans for an upgrade to enable PostScript features from non-PostScript capabilities.

The di erent sku features are:

 

 

 

 

 

 

 

 

 

CR358A HP

 

 

 

 

 

 

 

 

 

 

DesignJet T2500

 

 

 

 

 

 

 

 

 

 

eMultifunction,

 

 

 

 

 

 

 

 

 

 

CR358A/B HP

 

 

 

 

 

 

 

 

 

 

DesignJet T2500

 

 

 

 

 

CR355A/B HP

 

 

 

 

PostScript

 

 

 

 

 

DesignJet T920

 

 

 

CR357A/B HP

eMultifunction,

 

 

CR354A HP

 

36-in PostScript

 

CR356A HP

 

DesignJet T1500

L2Y25A

 

 

DesignJet T920

 

ePrinter and

 

DesignJet T1500

 

36-in PostScript

DesignJet T2530

 

 

36-in ePrinter

 

L2Y22A/B HP

 

36-in ePrinter

 

and L2Y24A/B

eMultifunction

 

 

and L2Y21A HP

 

DesignJet T930

 

and L2Y23A HP

 

HP DesignJet

and L2Y26A/B

B9E24A/B HP

 

DesignJet T930

 

36-in PostScript

 

DesignJet T1530

 

T1530 36-in

T2530 PostScript

DesignJet T3500

Feature

36-in ePrinter

 

ePrinter

 

36-in ePrinter

 

PostScript

eMultifunction

Production eMFP

 

 

 

 

 

 

 

 

Paper source

One 36-in roll, and single sheets

 

Two 36-in rolls, and single sheets

 

 

 

 

 

 

 

 

Paper output

Stacker, accepting up to 50 A1 plain-paper sheets, and basket

 

 

 

 

 

 

 

 

 

 

Connectivity

Gigabit Ethernet LAN (1000 base T)

 

 

 

 

 

 

 

One USB HS host connector in the front panel, for USB flash drives

 

 

 

IPv4, IPv6, IPSec, TCP9100, LPR, DHCP, AutoIP/Zeroconf, Bonjour, SNMP/v3, Airprint

 

 

 

 

 

Web services

Automatic rmware upgrade, HP DesignJet ePrint & Share, printing by email

 

 

 

 

 

 

Speed

Line-drawing, fast, plain paper: 21.6 s mono or color on A1&D

 

 

 

Color image, normal, plain paper: 69 s on A1&D

 

 

 

 

Color image, best, glossy paper: 246 s on A1&D

 

 

 

 

 

 

 

 

Resolution

Up to 2400×1200 optimized dpi from 1200×1200 input ppi

 

 

 

 

 

Memory

1.5GB RAM (2.5GB RAM T3500);1GB in Formatter and 512MB in Engine PCA), 320 GB hard disk (500 GB hard disk for

 

T1530 and T2530), 32 GB Dedicated

le-processing memory, 32GB (T920 series), 64 GB (T1500 series), and 128 GB

 

(T2500 and T3500 series), Virtual Memory

 

 

 

 

 

 

 

 

 

 

 

 

Supplies

O

-axis ink cartridges:

 

 

 

 

 

 

 

Introductory supplies: 69 ml (40 ml T3500) matte black, photo black, gray, cyan, magenta, yellow

 

Replacement supplies: 69 ml / 300 ml (130 ml T3500) matte black, for other colors 40 ml / 130 ml; photo black,

 

 

gray, cyan, magenta, yellow

 

 

 

 

 

 

 

Can be replaced by the customer

 

 

 

 

One printhead for all colors:

 

 

 

 

 

 

 

9/8-in length

 

 

 

 

 

 

 

 

Drop size: 9 pl matte black / 6 pl other inks

 

 

 

 

Can be replaced by the customer

 

 

 

 

 

 

 

 

 

 

 

 

 

Hardware

 

 

 

 

 

X

 

X

X

X

di erentiation:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Introduction 3

 

 

 

 

 

CR358A HP

 

 

 

 

 

 

DesignJet T2500

 

 

 

 

 

 

eMultifunction,

 

 

 

 

 

 

CR358A/B HP

 

 

 

 

 

 

DesignJet T2500

 

 

 

CR355A/B HP

 

 

PostScript

 

 

 

DesignJet T920

 

CR357A/B HP

eMultifunction,

 

 

CR354A HP

36-in PostScript

CR356A HP

DesignJet T1500

L2Y25A

 

 

DesignJet T920

ePrinter and

DesignJet T1500

36-in PostScript

DesignJet T2530

 

 

36-in ePrinter

L2Y22A/B HP

36-in ePrinter

and L2Y24A/B

eMultifunction

 

 

and L2Y21A HP

DesignJet T930

and L2Y23A HP

HP DesignJet

and L2Y26A/B

B9E24A/B HP

 

DesignJet T930

36-in PostScript

DesignJet T1530

T1530 36-in

T2530 PostScript

DesignJet T3500

Feature

36-in ePrinter

ePrinter

36-in ePrinter

PostScript

eMultifunction

Production eMFP

 

 

 

 

 

 

 

Second roll

 

 

X

X

X

X

 

 

 

 

 

 

 

Borderless

 

 

X

X

X

X

printing on roll

 

 

 

 

 

 

photo media

 

 

 

 

 

 

 

 

 

 

 

 

 

Other

 

 

X

X

X

X

di erentiations:

 

 

 

 

 

 

 

 

 

 

 

 

 

Languages

HP-GL/2, HP-

Adobe PostScript

HP-GL/2, HP-

Adobe PostScript 3, Adobe PDF 1.7ext3 HP-GL/2, HP-

supported

RTL, TIFF, JPEG,

3, Adobe PDF

RTL, TIFF, JPEG,

RTL, TIFF, JPEG, CALS G4, HP PCL 3 GUI, URF

 

CALS G4, HP PCL

1.7ext3 HP-

CALS G4, HP PCL

 

 

 

 

3 GUI, URF

GL/2, HP-RTL,

3 GUI, URF

 

 

 

 

 

TIFF, JPEG, CALS

 

 

 

 

 

 

G4, HP PCL 3 GUI,

 

 

 

 

 

 

URF

 

 

 

 

 

 

 

 

 

 

 

Virtual Memory

32

32

64

64

128

128

[GB]

 

 

 

 

 

 

 

 

 

 

 

 

 

1 job in queue

X

 

 

 

 

 

(last job reprint)

 

 

 

 

 

 

 

 

 

 

 

 

 

Job queues

 

X

X

X

X

X

 

 

 

 

 

 

 

Job preview from

 

X

X

X

X

X

queue

 

 

 

 

 

 

 

 

 

 

 

 

 

Crop marks and

 

 

X

X

X

X

nesting

 

 

 

 

 

 

 

 

 

 

 

 

 

EWS job

 

 

X

X

X

X

submmital

 

 

 

 

 

 

 

 

 

 

 

 

 

Job on-hold for

 

X

X

X

X

X

media

 

 

 

 

 

 

(mummify)

 

 

 

 

 

 

 

 

 

 

 

 

 

Auto rotate,

X

X

X

X

X

X

automatic blank

 

 

 

 

 

 

area removal

 

 

 

 

 

 

 

 

 

 

 

 

 

Accounting in

 

 

X

X

X

X

EWS

 

 

 

 

 

 

 

 

 

 

 

 

 

Readership

The procedures described in this service manual are to be performed by HP Certi ed service personnel only.

4 Chapter 1 Printer fundamentals

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Part numbers

Part numbers for printer service parts are located in Parts and diagrams on page 240.

Warning labels

Electric shock hazard

Hazardous voltage inside the printer (built-in power supply) could result in death or serious personal injury. See the installation instructions before connecting power. Ensure that the input voltage is within the printer's rated voltage range. Use only earthed mains outlets and the power cords supplied by HP with the printer. There are no operator-serviceable parts inside the printer. Refer servicing to quali ed service personnel. Disconnect the power cord before servicing. Voltage is still present in the built-in power supply after the main switch is turned o .

Double pole/neutral fusing

Electric shock hazard. The built-in power supply incorporates a fuse on each conductor, therefore the printer could be energized even when one fuse has blown. There are no operator-replaceable fuses inside. Refer servicing to quali ed service personnel. Disconnect the power cord before servicing.

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Introduction 5

Theory of operation

Schematics

Electronics are based on 3 main components:

E-box - contains the power supply and all the PCAs (driving the printer), plus the Ethernet port.

Carriage PCA - drives the printhead.

Front Panel - user interface and USB port.

The following diagram describes the connections between components and electronic boards and the data line type for T920, T1500 and T2500.

Block Diagram

(HP DesignJet T3500 eMultifunction Series only)

6 Chapter 1 Printer fundamentals

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Theory of operation 7

Block Diagram

(HP DesignJet T2500 and T3500 eMultifunction Series only)

Wiring Diagram

(HP DesignJet T2500 and T3500 eMultifunction Series only)

Scanner Controller Board Layout (SULG)

(HP DesignJet T2500 and T3500 eMultifunction Series only)

 

Voltage

Min limit

Max limit

 

 

 

 

TP1

5V-Main (Always on when there

4.75

5.25

 

is power to the board)

 

 

 

 

 

 

TP2

5V

4.75

5.25

 

 

 

 

TP3

1.2V

1.1

1.3

 

 

 

 

TP8

3.3V

3.2

3.4

 

 

 

 

TP6

2.5V

2.4

2.6

 

 

 

 

TP7

1.8V

1.7

1.9

 

 

 

 

8 Chapter 1 Printer fundamentals

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Voltage

Min limit

Max limit

 

 

 

 

TP15

0.9V

0.8

1.0

 

 

 

 

IC201

3.3VLDO

3.1

3.5

 

 

 

 

IC203

3.3VLDO

3.1

3.5

 

 

 

 

IC204

3.3VLDO

3.1

3.5

 

 

 

 

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Theory of operation 9

10 Chapter 1 Printer fundamentals

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Theory of operation 11

12 Chapter 1 Printer fundamentals

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Printer Initialization

There are 3 main blocks to be initialized before the printer can be operated:

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Theory of operation 13

Electronic components init

1.The front panel shows a white background and blue HP logo.

2.The upper LED in the formatter is ON, indicating that the formatter has been initialized.

3.The middle LED in the formatter blinks, indicating that the HDD has been initialized.

NOTE: Steps 2&3 are the same when waking from Sleep Mode except the 3 LEDs are not on but; ON- Blinking-OFF

OS & Firmware init

1.The OS is loaded into RAM. The Front Panel blinks for a second.

2. If boot up is after a bad power-o , the boot sequence automatically runs a le system check. a. The Front Panel shows the FSCK, text.

b.First, FSCK runs on the root partition.

c.If FSCK is successful, the OS boots up from the root partition and runs FSCK on the data partition.

3. After FSCK, the OS nishes booting from the HDD.

4.The home button lights up to allow stopping the boot sequence, and entry to the diagnostics menu, see Diagnostics, Service Utilities and Calibrations on page 179.

Mechanical components init

1.The Front Panel shows a black background with a blue circle in the middle. The “Initializing” message appears. A progress bar shows the percentage of subsystems that have been initialized.

2.The printer moves the carriage from side to side to validate its position within the scan axis. The printer initializes the service station, moving the caps from bumper to bumper.

14 Chapter 1 Printer fundamentals

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3.The pinches move down into position.

4.T2500 and T3500 only: The printer will initialize the Scanner and start checking it.

5.The carriage and service station move to the home position

6.The printer checks the status of supplies and the printhead, and then initializes the Ink Supply Stations.

7.Servicing routines are launched. The routines refresh the printhead depending on the time that the printer has been o . The Front Panel shows “Preparing Print System”.

8.The paper path subsystems are initialized by exercising the ramps and rewinder, checking if there is media present over the Media Sensor.

9.At the end of the process, the home screen appears in the Front Panel.

Front Panel Menu Map

The following tables show the front panel menu layout.

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Theory of operation 15

16 Chapter 1 Printer fundamentals

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Theory of operation 17

HP Designjet T9x0, Designjet T15x0, Designjet T25x0, Designjet T3500 Service Manual

18 Chapter 1 Printer fundamentals

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Theory of operation 19

20 Chapter 1 Printer fundamentals

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