HP Designjet T730, Designjet T830MFP Service Manual

HP DesignJet T730 Printer & HP DesignJet

T830 MFP

Service Manual

Edition 2	Legal notices
© 2015, 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.

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 procedures described in this manual are to be performed by P-quali ed service personnel only.

Electrical shock hazard

•Unplug the printer from the wall before performing any maintenance or servicing operation.

•Prevent water or any liquids form running onto electrical components or circuits.

Electrostatic discharge

See Electrostatic Discharge (ESD) Precautions on page 254 for actions you should take to prevent damage to the printer circuits from electrostatic discharge.

Safety symbols

Serious hazards leading to death, injury, or damage may result if you do not take the following precautions:

•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.

Using this manual

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

HP DesignJet T730 Printer	F9A29A
HP DesignJet T830 MFP	F9A30A

For information about using these printers, see the user's guide.

Readership

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

Part numbers

Part numbers for printer service parts are located in Parts and diagrams on page 227.

ENWW

v

vi

Using this manual

ENWW

Table of contents

1 Printer fundamentals ....................................................................................................................................	1
Overview ................................................................................................................................................................	1
Using the front panel .............................................................................................................................................	2
Start up process - preparing the ink system for the rst time .............................................................................	4
Start-up sequence .................................................................................................................................................	5
Subsystems ............................................................................................................................................................	7
2 Troubleshooting ..........................................................................................................................................	59
Printer troubleshooting flowchart: SFP ..............................................................................................................	60
Printer troubleshooting flowchart: MFP ..............................................................................................................	61
Printer startup troubleshooting ..........................................................................................................................	62
Basic printer troubleshooting ..............................................................................................................................	64
System error codes ..............................................................................................................................................	68
Paper troubleshooting ......................................................................................................................................	100
Communication troubleshooting ......................................................................................................................	111
Manual driver installation .................................................................................................................................	116
Drivers Troubleshooting ....................................................................................................................................	120
Ink-supplies troubleshooting ............................................................................................................................	122
Print-quality troubleshooting ...........................................................................................................................	133
Print mode summary table ...............................................................................................................................	149
Printer Emulation ..............................................................................................................................................	150
Scan and copy quality troubleshooting .............................................................................................................	151
The scanner diagnostic plot ..............................................................................................................................	168
Scanner jam removal .........................................................................................................................................	174
Scan media does not load .................................................................................................................................	176
Update the rmware .........................................................................................................................................	176
3 Support Menus, Diagnostic Plots & Calibrations ...........................................................................................	181
Support menus ..................................................................................................................................................	182
Entering the support menus .............................................................................................................................	182
Support menu ....................................................................................................................................................	185

ENWW

vii

Extended Support menu ....................................................................................................................................	216
7. Scanner diagnostics (included only in Extended Support Menu) .................................................................	219
Diagnostic Plots & Calibrations .........................................................................................................................	222
4 Parts and diagrams ....................................................................................................................................	227
Introduction .......................................................................................................................................................	228
Printer stand ......................................................................................................................................................	229
Stand HW SV kit .................................................................................................................................................	230
Covers HP DesignJet T730 Printer .....................................................................................................................	231
Covers HP DesignJet T830 MFP .........................................................................................................................	232
Roll covers .........................................................................................................................................................	233
Right-hand assemblies ......................................................................................................................................	234
Left-hand assemblies ........................................................................................................................................	236
Carriage assembly .............................................................................................................................................	238
Paper path (front) ..............................................................................................................................................	239
Paper path (rear) ................................................................................................................................................	240
Spindle ...............................................................................................................................................................	241
Sensor Kit ...........................................................................................................................................................	242
Cable Kit .............................................................................................................................................................	243
Ink tubes (RIDS) and Ink Supply Station (ISS) ....................................................................................................	244
Scanner Lid ........................................................................................................................................................	245
Scanner Bottom Mech .......................................................................................................................................	246
Scanner Bottom-EE ...........................................................................................................................................	247
Scanner Back .....................................................................................................................................................	248
Miscellaneous parts ...........................................................................................................................................	249
5 Removal and installation ...........................................................................................................................	251
Introduction .......................................................................................................................................................	254
Customer Self Repair parts ...............................................................................................................................	256
Videos available .................................................................................................................................................	257
Recommended checks after replacing parts ....................................................................................................	257
Top window SFP F9A29-67007 .........................................................................................................................	258
Front Cover ........................................................................................................................................................	261
Right Cover MFP SV Kit F9A30-67011 ...............................................................................................................	264
Left Cover MFP SV Kit F9A30-67012 .................................................................................................................	268
Roll Cover ...........................................................................................................................................................	272
Back Cover .........................................................................................................................................................	275
Front Panel SFP F9A29-67008 ..........................................................................................................................	278
Central Cover .....................................................................................................................................................	284
Upper-Roll Paper Guide .....................................................................................................................................	289
Left Roll Support ................................................................................................................................................	292

viii

ENWW

Right Roll Support .............................................................................................................................................	297
Encoder Strip .....................................................................................................................................................	300
Printer NVM backup PCA ....................................................................................................................................	305
Power Supply .....................................................................................................................................................	308
Main PCA ............................................................................................................................................................	311
Paper Motor .......................................................................................................................................................	317
Encoder PCA and Index ......................................................................................................................................	319
Encoder Disk ......................................................................................................................................................	323
Trailing Cable .....................................................................................................................................................	326
Service Station ...................................................................................................................................................	334
Prime Pump .......................................................................................................................................................	340
Carriage and Belt ...............................................................................................................................................	344
Carriage Belt ......................................................................................................................................................	351
Right Gear Train Module ....................................................................................................................................	353
Starwheel Assembly ..........................................................................................................................................	356
Output Shaft ......................................................................................................................................................	358
Output Tray ........................................................................................................................................................	365
Multi-Sheet Tray Assembly ................................................................................................................................	367
Multi-Sheet Tray Assembly Extensions .............................................................................................................	368
Output Platen ....................................................................................................................................................	370
Carriage Motor ...................................................................................................................................................	374
Cutter Assembly ................................................................................................................................................	378
Multi-Sheet Tray Sensor Assembly ...................................................................................................................	385
Out-Of-Paper Sensor .........................................................................................................................................	388
Out-Of-Paper Sensor Cable ...............................................................................................................................	392
Output Tray Sensor Assembly ...........................................................................................................................	395
Output Tray Extender Sensor Cable ..................................................................................................................	398
Carriage Line Sensor ..........................................................................................................................................	402
Bundle Board .....................................................................................................................................................	406
Bundle Board FFC cable .....................................................................................................................................	408
Pinchwheels .......................................................................................................................................................	414
Left Spittoon ......................................................................................................................................................	420
Scanner Top Cover F9A30-67015 ......................................................................................................................	423
Scanbars F9A30-67017 (HP DesignJet T830 MFP only) ...................................................................................	425
Top Cover Button Latch F9A30-67016 (HP DesignJet T830 MFP only) ............................................................	430
Bottom Platen F9A30-67042 ............................................................................................................................	431
Scan Bundle Board F9A30-67029 .....................................................................................................................	433
Scanner Feed Motor F9A30-67024 ...................................................................................................................	435
Hinges F9A30-67019 (HP DesignJet T830 MFP only) .......................................................................................	437
Scanner Feedshaft (Front) F9A30-67025 .........................................................................................................	440
Scanner Feedshaft (Rear) ..................................................................................................................................	446

ENWW

ix

Bottom Cables F9A30-67034 ............................................................................................................................	448
OPT Wheel F9A30-60038 ..................................................................................................................................	453
Sensor SV Kit F9A30-67031 ..............................................................................................................................	454
Rear Cover (MFP only) ........................................................................................................................................	464
Scanbar FFC F9A30-67018 ................................................................................................................................	466
Printer Sensor Kit SV .........................................................................................................................................	473
Calibration Surface F9A30-67027 ....................................................................................................................	484
Calibration Slider ...............................................................................................................................................	487
Calibration Surface Gear Train F9A30-67028 ...................................................................................................	489
Lower Pinch Assembly with Mirror F9A30-67033 (HP DesignJet T830 MFP only) ...........................................	492
RIDS (Ink Tubes) .................................................................................................................................................	494
ISS ......................................................................................................................................................................	499
Front Window MFP SV Kit F9A30-67013 ...........................................................................................................	502
Refeed Preventer ...............................................................................................................................................	504
Scanner Module .................................................................................................................................................	505
Top Lid Mirror and Magnet (HP DesignJet T830 MFP only) ...............................................................................	511
Input platen SV F9A30-67039 (HP DesignJet T830 MFP only) .........................................................................	513
Diverter SV F9A30-67040 .................................................................................................................................	516
Diverter bottom part F9A30-67062 ..................................................................................................................	520
Latch (Right) F9A30-67030 ...............................................................................................................................	522
Latch (Left) F9A30-67030 .................................................................................................................................	524
Front Panel and Left Trim F9A30-67043 ..........................................................................................................	526
6 Preventive maintenance .............................................................................................................................	529
Preventive maintenance ....................................................................................................................................	530
Preventive maintenance kits .............................................................................................................................	537
7 Safety precautions ....................................................................................................................................	541
General safety guidelines ..................................................................................................................................	542
Electrical / Fire hazard .......................................................................................................................................	542
Mechanical hazard .............................................................................................................................................	542
Warning labels ...................................................................................................................................................	542
8 Appendices ................................................................................................................................................	543
Important links ..................................................................................................................................................	544
Support Menu and Extended Support Menu Tree .............................................................................................	545
How to check whether your computer is connected to your network ..............................................................	546
Wireless troubleshooting report error cases ....................................................................................................	549
Media Advance Calibration report (Tap 11) .......................................................................................................	557
Rugged Case Accessory .....................................................................................................................................	561

x

ENWW

CSR fliers ............................................................................................................................................................	567
FAQ: Tips & Tricks ..............................................................................................................................................	596

ENWW

xi

xii

ENWW

1Printer fundamentals

●Overview

●Using the front panel

●	Start up process - preparing the ink system for the rst time

●Start-up sequence

●Subsystems

Overview

Feature	HP DesignJet T730		HP DesignJet T830	More information
Paper source	Roll, Manual sheet, and Multi-sheet tray			See the user's guide
Hardware di erences	Single function printer		Multifunction printer with
			integrated scanner
Connectivity	Wi-Fi or Fast Ethernet Lan and USB Host (Printing from USB/Scan			Important! Cannot have both
		to USB)		WiFi and LAN at the same time
Web Services	Automatic	rmware upgrade		The printer needs to be
				Internet-connected: For some
	Printing by email			con gurations, the latest
				rmware release is needed.
				Manual rmware update is
	Customer Involvement Program (Printer use data sent regularly			available in both printers via HP
				Designjet Utility (Windows) or
	under customer acceptance)
				HP Utility (Mac OS) and also via
				USB host. The same rmware
				le is used for T730 and T830.
Mobility	Mobile "In-Os" Print support: (IOS, Android), HP AiO App			See user guide
Print speed	28 s per page on A1/D in		28 s per page on A1/D in
	Economode		Economode
Default print mode		Fast
Print resolution	Up to 1200 × 2400 dpi
Memory and languages	1 GB, HP-GL/2 (processing in printer)

ENWW	Overview 1

Feature	HP DesignJet T730	HP DesignJet T830	More information
Supplies	Ink supplies HP 728 40 ml and 130 ml Cyan, Magenta, Yellow		Ink cartridges and printhead
			can be replaced by the
	HP 728 69 ml and 300 ml Black		customer.
	HP 729. One on Axis PRINTHEAD for all colors

Using the front panel

The front panel is a touch-sensitive screen with a graphical user interface; it is located on the front left of the printer. It gives you complete control of your printer: from the front panel, you can print, view information about the printer, change printer settings, perform calibrations and tests, and so on. The front panel also displays alerts (warning and error messages) when needed.

The front panel has a large central area to display dynamic information and icons. At the top of the central area there is a dashboard that displays the Home screen icons. To interact with these icons swipe across the dashboard to access the Home screen.

On the left and right sides you can see up to six xed icons at di erent times. Normally they are not all displayed at the same time.

Left and right xed icons

● shows the status of the wireless connection: if the blue light is shining, the wireless connection is active.

●Press to return to the home screen.

●Press to view help about the current screen.

●Press to go back to the previous screen without discarding changes.

2 Chapter 1 Printer fundamentals

ENWW

Paper tab icons

The following items are displayed only on the paper tab screen:

●Press to load, unload, and change options for roll paper.

●Press to change options for the multi-sheet tray, or activate it.

●Press to load, unload, and change options for single sheets.

NOTE: The white tick in a blue box indicates the active paper source: in this example, the multi-sheet tray:

.

NOTE: It is not possible to use wireless and wired network connections simultaneously.

NOTE: If no tick appears, no paper is loaded in any source.

Dashboard icons

The following items are displayed only on the paper tab screen:

●Press to change printer settings.

●Press to eject paper from the scanner.

●Press to view information about ink supplies.

●Press to view information about the printhead.

●Press to view information about network status, and con gure the network (wireless or wired).

●Press to access access Web Services.

●Press to access WiFi Direct.

If the printer is left idle for some time, it goes into sleep mode and switches o the front-panel display. To change the time that elapses before sleep mode, slide , then Printer setup > Sleep mode. You can set a time between 5 and 240 minutes.

The printer wakes from sleep mode and switches on the front-panel display whenever there is some external interaction with it.

You can use the printer’s auto-o feature to turn the printer o automatically. For example, setting it to 2 hours turns the printer o after 2 hours of inactivity. In this way, you can save more energy. However, the auto-o feature is automatically disabled when the printer is connected to the network, to avoid inconveniencing network users.

The following table shows an overview of the two types of support menu available, for more details see Entering the support menus on page 182.

NOTE: The icons mentioned in this table will not be visible in the front panel: you must press the front panel in the places where they normally appear, as shown in the front panel illustration at the start of this section.

ENWW	Using the front panel 3

Label	Description
Support menu: This can be used by customers under the	From the Home screen, press the following icons one after the
guidance of phone call agents assisting remotely. Using this	other:	,	,	, .
menu, customers can perform troubleshooting tasks and access
printer information.	If there is a system error, you may not be able to reach the home
	screen. In this case, press the Power button and hold it down for
	15 seconds.
Extended Support menu: Service engineers only	From the Home screen, press the following icons one after the
	other:	,	,	,	.

Start up process - preparing the ink system for the rst time

The printer tubes and PHA are shipped dry. To ready them to print, they must be lled with ink, and need servicing to make the nozzles wet, and manage air within the PHA.

Three subsystems are primarily involved in this process: the ink supply station, the primer, and the service station.

●The ink supply station pumps ink from the supplies, through the tubes, to the PHA.

●The primer opens the PHA regulator to allow ink to enter the PHA. It also manages the air within the PHA, moving any air bubbles to the upper part of the PHA reservoirs (also known as NOAs).

●	The service station cleans the PHA nozzles after the process, readying the PHA for the rst print.

The process flow is as follows:

1.The primer activates to inflate the bag inside the printhead so that the regulator is open during start-up.

	The primer air circuit holds the regulator open during the start-up ink ll process.
2.	Once the regulator is open, the ink supply station starts pumping to push ink through the tubes. The rst
	ink is used to ll up the empty tubes. The air in the tubes is purged out of the one-time vent in the PHA.
3.	Once the tubes are lled, ink lls the NOA to the one-time vent. Air continues to purge out of the vent.
	When the ink reaches the one-time vent, it becomes wet and the air in the PHA remains. Extra ink is sent

4 Chapter 1 Printer fundamentals

ENWW

for fully wetting the vent, and purge the air from the pores at which point the vent is closed and remains closed for the life of the PHA.

4.The air circuit is vented and the PHA bag is deflated. Now ink pumps in to return to the volume to what the bag had before moving from full inflation to set point. This closes the regulator.

5.With the PHA full of ink, a series of lower pressure primes are run to expel all air from the PHA below the lter into the NOA.

6.Finally the servicing routine begins, and the PHA nozzles are cleaned and prepared to print.

Start-up sequence

There are 4 states between power-on and the Home screen:

1.Electronics initialization

2.Firmware initialization

3.Mechanical initialization

4.Scanner calibration

State 1: Electronics initialization

1.The front panel moves from flashing white light to turning dark.

2. The printer reads the rmware from the eMMC module.

NOTE: At this stage, if something is broken, it will not be possible to enter the Support menu. To diagnose what is happening, go to the front panel blank troubleshooting.The Front Panel is blank (the printer does not start) on page 64. Subsequently, you can enter the Support menu to troubleshoot if necessary.

State 2: Firmware initialization

1.HP logo appears on a white background.

2.Bundle board and ASICs are initialized. The Firmware is loaded.

ENWW	Start-up sequence 5

3.When complete, the screen changes to:

State 3: Mechanical initialization

1.A basic check of servos is run.

2.Next, it checks that the Scan Axis and Paper Axis are unobstructed by scraps of paper or other items.

3.Finally the media and ink system are initialized.

NOTE: During all steps, the screen "Checking the printer. Please wait..." is shown:

State 4: Scanner calibration (MFP only)

▲MFP only: Every time the unit starts up PRNU calibration (white balancing) is conducted to ensure best calibration and to improve IQ. During calibration, the following screen is shown:

NOTE: Initialization lasts around 2 minutes with clean power-o (Front Panel Power button). If there was a dirty power-o , the printer requires more time to inititialize to ensure the printhead is OK.

6 Chapter 1 Printer fundamentals

ENWW

Subsystems

Printer

Covers

Functionality

These parts cover the printing mechanism and act as protection from potential knocks or dust. They also prevent the customer from coming into contact with unsafe parts during the operation of the printer. Finally, the covers complement the style and aesthetics of the printer.

ENWW	Subsystems 7

Components

Other than the cosmetic aspects of the covers, there are several sensors related to the subsystem covers. The sensors are designed to detect the status of the cover, open or closed.

●The Ink Door Sensor senses whether the Ink Cartridge Cover is open or closed. Opening the Ink Cartridge Cover starts ink cartridge replacement automatically. The sensor is hosted in the printer chassis.

●HP Designjet T730 Printer only: The Central Cover hosts the Top Cover Sensor to sense whether the Central Window is open or closed.

IMPORTANT: HP Designjet T730 Printer only: Be careful to avoid damaging the sensor while removing the Central Cover. See Central Cover on page 284.

●The PHA Door sensor detects the door opening so that the printer is aware of the user’s intention of interacting with the PHI connector or PHA.

●The Output Tray Sensor senses whether the Output Tray is open or closed. To avoid paper jams while printing on roll paper, the tray should be closed.

IMPORTANT: Damage to the covers can cause the sensors to malfunction.

Removal and installation

In order to proceed with the removal and installation of the covers its important to bear in mind their cosmetic aspects. It is recommended that you use gloves for any service operation involving the covers.

Due to the layout of the covers, it is important to bear in mind that some parts require removal before you can remove a speci c cover.

●Right Cover requires Front Cover removal.

IMPORTANT: Right cover removal interacts with the ink tubes. There is only one way to remove the right cover; with the ink door open and the PHA door closed.

8 Chapter 1 Printer fundamentals

ENWW

Ink door cover interaction with chassis:

◦Right cover interaction with ink tubes:

● With the PHA door closed, the tubes move freely:

ENWW	Subsystems 9

●With the PHA door open, the tubes are held by a lever:

●Left Cover requires Front and Cutter Door Removal.

●Roll Cover requires Right and Left Cover removal.

●HP DesignJet T730 Printer only: Central Cover requires Right Cover and Left Cover removal.

Electronics

Other than the sensor boards, there are no electronics related to this subsystem.

Printhead health systems: Service Station, Primer system, and Left Spittoon

Functionality

The service station is responsible for printhead maintenance. It takes action to clean ink residues and service ink nozzles, and prevents ink from drying in critical zones by capping the printhead once printing has nished.

The Primer system provides the necessary air pressure to the printhead to perform initialization. This system also provides pressure to the necessary printhead service operations (by boosting air which pushes ink out through the printhead nozzles, cleaning residues of dried ink and other particles).

The Left spittoon is a small container located to the left of the print-zone area, this is the area used by the printhead to “spit” a small amount of ink at the end/beginning of the printing swath in order to ensure correct nozzle heath for left-to-right printing.

10 Chapter 1 Printer fundamentals

ENWW

Components

Item	Function
O -axis coupling assembly	This is a rubber spring link located on the side plate of the scan
	axis (area where the Carriage moves). It links the primer system
	with the Carriage when the Carriage is located in its maximum left
	position. This system ensures the pressure from the primer
	reaches the printhead for nozzle servicing.
Prime Pump	This is an air pump which provides the necessary pressure for
	printhead servicing and nozzle repair. The Prime Pump is
	suspended on a rubber holder to minimize the noise that the
	Prime Pump makes while in operation.
Primer Tubes	The tubes take the air from the Prime Pump to the o -axis
	coupling. There is a T link feature connected to a tube that goes
	inside the service station; the purpose of this tube is to release
	the air pressure from the system. The tube is pinched by the
	shuttle of the service station when reaching a certain position;
	this action closes the circuit and allows the system to be
	pressurized. With the movement of the service station the tube is
	released, allowing the pressure from the system to escape.

Notes and considerations

Any leakage in the primer system will generate poor or no priming, this will a ect nozzle heath (or even cause the printhead startup to fail). Bear in mind that the system is not just for the Prime Pump and tubes, the prime pressure is transmitted via the o -axis coupling to the Carriage and from there to the printhead assembly and from there to the cartridges.

ENWW	Subsystems 11

NOTE: There is no pressure sensor in the system. The Prime Pump operates at a certain time to reach a speci c pressure level, the system is depressurized by releasing the pinching of the release tube in the Service Station (by moving the service station).

NOTE: It is important to ensure the Carriage reaches the maximum left position; if not, the o -axis coupling will not connect the Prime Pump with the Carriage. Also, the coupling is made of a rubbery material, degradation of the material will a ect Primer performance due to air leaks.

Electronics

The control driver of the Prime Pump is located on the printer bundle board located on the right-hand side of the printer. There is no encoder for the Prime Pump. This pump is managed only by a DC motor activated for a certain period of time to create the required priming pressure.

Printhead assembly

Notes and considerations

The printhead operates as a full assembly, regulating ink flow in the NOA regulator, and warehousing air during the life of the PHA. This is done by balancing pressure between the inside of the NOA regulator and atmosphere. When ink is printed out, the pressure becomes more negative inside the chamber, causing the bag to open, which allows more ink into the system, putting it back into equilibrium and closing the regulator.

There are 4 colors on the die. With the PCA facing away from you, the color order is Black, Cyan, Magenta, and Yellow.

12 Chapter 1 Printer fundamentals

ENWW

When the PHA is empty when replaced. The system uses the startup routine to ll the PHA and prepare it for the rst page of printing. When performing a PHA replacement it is necessary to have enough ink in the cartridges, as prompted by the front panel. As noted in the section on the RIDS (Ink Tubes) on page 494; when the tubes are empty, a new, empty printhead must be used.

NOTE: HOT SWAP is not allowed: If the PHA is replaced with the printer turned ON, there is a risk of Main PCA damage if the printhead replacement front panel procedure is not followed.

Electronics

The PHA is controlled through the carriage PCA and trailing cables to power the printhead and transmit data. It is connected on the backside of the carriage.

ENWW	Subsystems 13

Service Station system

Functionality

Item	Function
Printhead Wipers	These are rubber paddles that are passed through the nozzle
	plate of the printhead with the Service Station movement. They
	clean the excess ink from the nozzle plate with a rubbing action.
Printhead Cap	This caps and protects the nozzles from drying when they are not
	printing.
Service Station Motor system	This moves the shuttle with the wiper and the cap so that these
	two items can perform their functions. The system is composed
	of a DC motor and an encoder disk with an encoder sensor to read
	the motor position.
Bottom Spittoon	This part acts as an ink reservoir when spitting and nozzle health
	operations are performed. It contains diapers that absorb ink and
	keeps it contained.

14 Chapter 1 Printer fundamentals

ENWW

Item	Function
Top Spittoon	This seals the reservoir and completes the main body of the
	service station.
Wiper Shuttle	This mobile part is propelled by the motor that contains the Wiper
	and Cap. Depending on the position, spitting, wiping, capping, or
	priming can take place:
	Spitting: The printhead “spits” a little ink into the spittoon to get
	the nozzles conditioned and ready for the next swath of printing.
	Wiping: A physical action to pass the rubber wipers through the
	printhead nozzles.
	Capping: Parking the printhead to maintain nozzle heath during
	printer inactivity, with a surrounding seal.
	Priming: Squirts ink through the nozzles to clean and unblock
	them.

Notes and considerations

The service station is o ered as a complete service part for full replacement. The failures from this subsystem are usually related to the mobile parts: motor or encoder failures that prevent the shuttle from reaching the positions for capping or uncapping.

With the life primer system, tube pinching can present an issue (although it is designed to function for the life of the printer).

When the Service Station is replaced, it is mandatory to reset the Preventive Maintenance Kit for the Service Station, this will trigger a simple calibration that is done with the Service Station on the next printer startup. The calibration measures the length of the Service Station (shuttle front bump to shuttle rear bump), which ensures a correct capping position.

Electronics

All the controlled movements for the Service Station are done from the Printer Bundle Board located on the right-hand side of the printer. Issues with the Service Station can also be related to this control board.

Ink system overview

The ink system consists on the Ink Supply Station to pump ink from the supplies and the Ink Tubes to carry ink to the printhead.

ENWW	Subsystems 15

Below the two main systems mentioned are described.

Ink Supply Station (ISS)

The Ink Supply Station (ISS) pumps ink from the supplies to tubes in order to print. The ISS acumen sensors identify HP ink supplies.

The ISS is mounted on the right of the printer so as to pump ink from the supplies to the PHA. Several of their main components are carry-over parts from other products.

The ISS is designed to admit di erent supply types: Mirasis (130 cc), Mirasis Plus (300 cc) and Oasis (69 cc), with four di erent colors; Cyan (C), Magenta (M), Yellow (Y), Black (PK).

The Printer Bundle Board that controls the Primer, Ink Door Sensor, PHA Cover Sensor, Pick motor, ISS motor, ISS acumen sensor, ISS home flag encoder and Service Station motor is located just next to the ISS. The cables must be routed correctly (by means of wire saddles xed in the Printer Bundle Board support), to prevent interference and wire pinching whenever the Right Cover is assembled.

16 Chapter 1 Printer fundamentals

ENWW

Ink Tubes (RIDS)

The tubes connect the Ink Supply Station with the printhead and ensure ink is transferred from the supplies to the printhead. The tubes are independent of the Trailing Cables.

The PHA connector is not connected to the carriage, but a floating connector and the septums come prelubricated. Good lubrication is essential for easy insertion in the printhead.

ENWW	Subsystems 17

The supplies end is embedded in the Ink Supply Station and its design is very similar to other products. There is a risk that when removing the tubes from the printer some ink spillage can occur.

Printhead-Ink Tubes connection

This latch allows for the removal and installation of the o -axis ink tubes that go to the printhead assembly.

The ink tubes come connected to the printhead and are pre-installed in the carriage, but manual connection must be performed by the customer when a printhead replacement is required.

18 Chapter 1 Printer fundamentals

ENWW