Xerox XJ6C Service manual

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Xerox XJ6C Printer Service Manual

The Document Company

XEROX

701P13560 June, 1998

NOTICE

Printed in USA

All service documentation is supplied to Xerox external customers for informational purposes only. Xerox service documentation is intended for use by certified, product trained service personnel only. Xerox does not warrant or represent that such documentation is complete, nor does Xerox represent or warrant that it will notify or provide to such customer any future changes to this documentation. Customer performed service of equipment, or modules, components or parts of such equipment may affect the warranty offered by Xerox with respect to such equipment. You should consult the applicable warranty for its terms regarding customer or third party provided service. If the customer services such equipment, modules, components or parts thereof, the customer releases Xerox from any and all liability for the customer actions, and the customer agrees to indemnify, defend and hold Xerox harmless from any third party claims which arise directly or indirectly from such service.

Prepared by: Multinational Customer and Service Education Xerox Corporation, Rochester, New York 14644

TITLE PAGE INTRODUCTION

About This Manual.......................................iv

Organization ................................................iv

How To Use This Manual ..............................v

Reference Symbology..................................vi

Special Symbols ..........................................vi

Signal Nomenclature ................................... vii

DC Voltage Levels ......................................vii

1. Service Call Procedures

Section Contents..................................1-1

2. Status Indicator RAPs

Section Contents..................................2-1

3. Image Quality RAPs

Section Contents..................................3-1

4. Repair / Adjustment Procedures

Section Contents..................................4-1

Table of Contents

5. Parts List

Section Contents..................................5-1

6. General Procedures

Section Contents..................................6-1

7. Wiring Data

Section Contents..................................7-1

6/98

XJ6C iii Introduction

ABOUT THIS MANUAL

This manual contains Repair Analysis Procedures, Repair Procedures, Adjustment Procedures, Parts List, Diagnostic Procedures, and Wiring Data information that will enable a Service Representative to repair the XJ6C Printer.

ORGANIZATION

This manual is divided into seven sections. The title and description of each section is listed below.

A Publication Comment Sheet is provided at the end of this manual.

Section 1 - SERVICE CALL PROCEDURES

This section contains the following:

• Initial Actions / System Checks

• System Checkout

• Final Action

Initial Actions / System Checks

This diagram identifies how to collect the data necessary to decide how to proceed with the service call. It classifies the problem and refers you to the appropriate Repair Analysis Procedure.

System Checkout

The System Checkout procedure is used to verify that the printer is operating properly after a repair has been made.

Final Action

The Final Action procedure identifies the steps that must be performed before finishing the repair.

Section 2 - REPAIR ANALYSIS PROCEDURES (RAPs)

This section contains the Repair Analysis Procedures (RAPs) necessary to repair faults. When using a RAP, always exit the procedure when the fault is fixed. Do not perform the remaining steps.

Section 3 - IMAGE QUALITY REPAIR ANALYSIS PROCEDURES (RAPs)

This section contains the Repair Analysis Procedures (RAPs) necessary to repair print quality faults. The first RAP, IQ 1 Image Defect Entry RAP, is used to classify a print quality problem and will reference the RAP to be used to repair the problem. When using a RAP, exit the procedure when the fault is fixed. Do not perform the remaining steps.

Section 4 - REPAIR / ADJUSTMENT PROCEDURES

This section contains the repair and adjustment procedures for the XJ6C Printer.

Section 5 - PARTS LIST

This section contains the detailed Parts List for the XJ6C Printer.

Section 6 - GENERAL PROCEDURES

This section contains Diagnostic Procedures and Product Specifications for the XJ6C Printer. An XJ6C Printer Overview and Technical Overview section are also included.

Section 7 - WIRING DATA

This section contains Plug/Jack Location Drawings and BSDs.

6/98

Introduction iv XJ6C

HOW TO USE THIS MANUAL

The Service Call Procedures will direct you to the proper section of the Service Manual.

You should begin the service call with the Initial Actions / System Checks Procedure. From there, you will be referenced to either Section 2, Status Indicator RAPs or Section 3, Image Quality RAPs.

If you are sent to Section 3, you will perform the IQ 1 Image Defect Entry RAP to classify the print quality problem. You will then be directed to the proper RAP to begin your troubleshooting. From these RAPs you may be referenced to other sections of the manual to make checks, adjustments or to replace parts.

When you have made a repair, return to the System Checkout / Final Action to complete the call.

6/98

XJ6C v Introduction

REFERENCE SYMBOLOGY

SPECIAL SYMBOLS

Flag

Notes, adjustments, and parts lists support the checklists and the RAP information. The symbols symbols are included in order to aid in

that refer to this supportive data are shown below. Note

This symbol is used to refer to notes

Adiustments

Parts List

PL 10.6

found on the same page.

ADJ 4.1 This symbol refers to an adjustment procedure located in Section 4 of this Service Manual. The number adjacent to the symbol indicates the number that is assigned to that adjustment.

Refers to the parts list located in Section 5 of this Service Manual. The number after the PL designation indicates the number that is assigned to that part.

Descriptions

troubleshooting when using the RAP S.

Interrupt Horizontal Signal

Standby Power Input

+24

VDC

Left to Right Flow

Feedback

of all commonly used graphic

This indicates the continuation of a signal line which is interrupted in a horizontal direction.

This indicates the continuation of a stand by interrupted in the vertical direction.

This indicates the direction of signal flow.

This indicates a feedback signal.

power ’lrne

which

Ground

LED / Phototransistor Sensor

This is used to identify an area of a Circuit Diagram that you should check.

This indicates a machine ground.

This type of sensor is used in the paper path. It uses reflected light to switch the sensor off and on.

Introduction

6198

XJ6C

Without Tag Change

888

SIGNAL NOMENCLATURE

DC VOLTAGE LEVELS

This symbol indicates that the area the triangle points to has not been modified by the tag number in the circle.

This symbol indicates that the entire page has not been modified by the tag number in the circle.

With Tag Change

This symbol indicates that the area the triangle points to has been modified by the tag number in the circle.

This symbol indicates that the entire page has been modified by the tag number in the circle.

A warning is used to alert the personnel to an operating or maintenance procedure, practice, or

condition that, if not strictly observed, could result in injury or loss of life.

WARNING

The signal is named to imply the condition of the machine when the signal is available. For example:

DOCUMENT JAM SENSED (L) + 12 VDC

Signal Name

Logic state when the signal is available in its named state. In this case, the signal is Lo when a document jam is sensed.

Logic voltage when the signal is Hi.

DC voltages should be measured between the test point and machine GND, unless instructed otherwise. The table below shows the values of the voltages.

Nominal Voltage Logic

State

+5 VDC H

+42VDC H

Actual Voltage

Ranges

+4.8 to +5.2 VDC

0.0 to +1.0 VDC +39.0 to +44.0 VDC

0.0 to +3.0 VDC

Switches and Relay Contacts

Safety interlock switch that is open.

Safety interlock switch that is closed.

Switch or relay contacts with momentary contacts shown normally open.

CAUTION

A caution is used to alert the personnel to an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in damage to, or destruction of, equipment.

6/98

Switch or relay contacts with momentary contacts shown normally closed.

XJ6C vii/viii Blank Introduction

Section Contents

Title Page

Introduction..............................................1-3

Subsystem Maintenance

Printer Maintenance ...............................1-3

Initial Actions/System Checks

Initial Actions/System Checks.................1-4

Status Code Entry Chart......................... 1-5

System Checkout/ Final Action

System Checkout/Final

Action RAP.............................................1-6

1. Service Call Procedures

6/98 Service Call Procedures

XJ6C 1-1 Section Contents

Introduction

Use the Service Call Procedures as a maintenance guide when performing any service on the XJ6C Printer. The procedure has been designed for use with the XJ6C Printer Service Manual.

• Printer Maintenance - This section contains a list of the printer subsystem components to be cleaned and /or lubricated and the cleaning and lubricating materials to be used, when that subsystem is accessed during a repair.

• Initial Actions / System Checks - This diagram identifies and classifies the printer problem and refers you to the appropriate RAP in order to repair the problem. When the problem has been repaired, perform the System Checkout / Final Action.

• System Checkout / Final Action - This procedure should be completed at the end of every service call to ensure that the printer is operating properly

Service Call Procedures 6/98

Introduction 1-2 XJ6C

Printer Maintenance

Introduction

When the printer is being serviced, the following maintenance procedure should be performed.

Procedure

Clean the following parts every time the printer is serviced:

Description Procedure Cover Clean using a Lint

Free Tissue 35P2163 (USCO/ACO) or 600S4372 (RXL) and water.

Paper Feed roller Clean using a Lint

Free Tissue 35P2163 (USCO/ACO) or 600S4372 (RXL)

and water. Paper Feed Pinch rollers and Paper Feed Guide

Maintenance Station Clean using a Lint

Clean using a Lint

Free Tissue

35P2163

(USCO/ACO) or

600S4372 (RXL)

and water.

Free Tissue

35P2163

(USCO/ACO) or

600S4372 (RXL)

and water.

6/98 Service Call Procedures

XJ6C 1-3 Printer Maintenance

Initial Actions

1. QUESTION THE OPERATOR.

2. VERIFY, CLASSIFY AND REPAIR THE PROBLEM.

STATUS INDICATOR

• ERROR LED ON Go to Error LED On RAP

• LOW INK LED(s) ON

Go to Low Ink LEDs On RAP

• POWER LED BLINKING

Go to Power LED Blinking RAP

• NO LEDs ON

Go to the 1.1 Power On RAP

PRINT QUALITY

• IMAGE QUALITY PROBLEMS Go to IQ 1 Image Defect Entry RAP in Section 3

OTHER FAULTS

• DEAD MACHINE Go to 1.1 Power On RAP

• SELECTION/INDICATION PROBLEM

Go to 2.1 Selection/Indication RAP

• ALL OTHER PROBLEMS Go to Section 2 contents

Service Call Procedures 6/98

Initial Actions / System Checks 1-4 XJ6C

System Checkout / Final Action

Reset the Ink Level Sensing count to zero. Perform the following:

• Install a slave Color Printhead with empty ink cartridges.

• Run a Test Print.

• Remove the slave Printhead and install a

Color Printhead with full ink cartridges.

• Run a Test Print.

• The NVM counts are now set to zero.

Print a file.

Prints exit the printer. Y N

Refer to Initial Action / System Checks to begin your repair.

Evaluate the prints.

Image quality is acceptable. Y N

Go to the image quality RAP identified by the IQ 1 Image Defect Entry RAP (Section 3).

Print and check the “Printing Alignment Test Pattern”. The alignment is good.

Y N

Go to ADJ 2.0 Printhead Alignment Procedure.

Clean exterior of machine and provide a sample of the Test Print.

6/98 Service Call Procedures

XJ6C 1-5 System Checkout / Final Action

Section Contents

2. Repair Analysis Procedures (RAPs)

Title Page Status Indicators RAPS

Error LED On RAP....................................... 2-2

Power LED Blinking RAP .............................2-2

Low Ink LED(s) On RAP ...............................2-3

Error LED Flashing RAP ............................... 2-5

Title Page

Other Faults

1.1 Power on RAP ........................................2-6

2.1 Selection/Indication RAP........................2-8

6.1 Carriage RAP........................................ 2-10

6.2 Encoder RAP........................................ 2-10

8.1 Paper Feed RAP...................................2-12

9.1 Blank Print RAP....................................2-14

6/98 Status Code Indicators

XJ6C 2-1 Section Contents

Error LED On RAP

A B C D

Go to 8.1 Paper Feed RAP.

Power LED Blinking RAP

Initial Action:

Ensure a color print head is installed. Remove the power cord from the printer for 10

seconds, then reinstall it. Press the Power switch.

The Error LED is on steady. Y N

The Error LED is flashing. Y N

Press and hold the Resume/FF button for 2 seconds to print the demo print.

The Error LED is on steady. Y N

The error LED is flashing. Y N

Check the interface cable and connectors for an open wire or bad connection. If OK, replace the Main PWB.

Go to Error LED Flashing RAP.

Remove the power cord from the printer for 10 seconds, then reinstall it. Press and hold the Power switch for about 2 seconds.

The carriage was noisy. Y N

The print head stopped at each ink cartridge during the power-on cycle. Y N

Go to 6.2 Encoder RAP.

A B C D

Go to 6.1 Carriage RAP.

Go to Error LED Flashing RAP.

One or more low ink LED(s) are blinking. Y N

Go to 6.1 Carriage RAP.

Go to Low Ink LED(s) On RAP.

Remove the power cord from the printer for 10 seconds, then reinstall it.

The Power LED blinks. Y N

Printer is OK.

Go to 2.1 Selection/Indication RAP.

Status Code Indicators 6/98

Error Lamp On RAP / Power LED Blinking RAP 2-2 XJ6C

Low Ink LED(s) On RAP

Initial Action:

Ensure all the ink cartridges are full and

properly seated. Go to Flags 1 and 2. Check the wires

connections for an open circuit. The wires

good.

Y N

Repair the wires or connections if poss If the problem still exists replace

I Printer. Replace the Ink Level Sensor (PL 2.1). If the problem still exists replace the Printer.

and

are

ble

the

MAIN PWB

IRELAY

PWB

PL 2.1

iSENSOR /PL

2.1

JIO 1

-k------l

SENSING ZIRCUIT

GND

VDC

Pulsed signal Low Ink sensed (2.5 to 4 VDC).

Notes ,

-2

_j-

JlO

GRY

VI0

GRY

Low Ink

Sensed

GRY

P/J2

T2-

I I I I I I

-L

I I

t-5

-l-j

-4

I I

PL 1.1

VDC

XJ6C

6198

2-3

Status Code Indicators

Low Ink LED(s) On RAP

PAGE INTENTIONALLY BLANK

Status Code Indicators 6/98

2-4 XJ6C

Error LED Flashing RAP

Note: This procedure will work only when the Error LED is flashing.

Note: In the following procedure, the Error LED and Power LED will be used to display an 8 bit binary error code. The second intervals. at a time.

The LED code is as follows (See Figure

=Both

Error and Power

The code will be displayed 4 bits

0 =Error LED only is lit

1. Press and release the Resume/FF button, while observing the Error and Power

2. 4 bits will be flashed in followed by a pause, then 4 more bits in second intervals. After the cycle, the Error LED will continue to flash.

Determine the code and go to the Error Code Chart (Table 1) for the corrective action.

Repeat step 1 as many times as necessary to determine the code.

LEDs

will flash in

LEDs

lit

LEDs.

l/2

second intervals

l/2

Resume/FF

Figure I. LED Code

Error Error Code

1000 1000

1000 1100

1100 1000

Description

ROM error

RAM error

EPROM error

1110 1000 CPU error

1100 1111

Carriage home Carriage position error RAP

Table 1. Error Code Chart

Corrective

Action

Replace

the

main

PWB Replace

the

main

PWB Replace

main

the

PWB Replace

the

main

PWB

Go to 6.1

XJ6C

6198

2-5

Status Code Indicators

Error LED Flashing RAP

1.1 Power on RAP

Refer to Figure 1. There is

the Main PWB. Y N

Disconnect the power cord. Check fuse Fl on the LVPS.

Fl is blown. Y N

Go to Flag 1 (Figure 2) and check the wires

for an open circuit. If good, replace the LVPS. If problem still exists, replace the Main PWB.

+42

VDC measured on

U23

xl!

UIO

- -

MAIN PWB

CNI

r-l

Replace the LVPS (PL 1

Refer to Figure I. There is +5 VDC measured on

the Main PWB. Y N

Go to Flag 2 and check for a short to ground. If OK, replace the LVPS. If problem still exists, replace Main PWB.

I Replace the Main PWB before replacing the Control

Console PWB.

.I).

CN3

’

Figure 1. Voltage Measurements

CN4

Fuse

CNl

Status Code Indicators

1.1 Power On RAP

6198

2-6

XJ6C

ACH

NEUTRAL

GROUND

_VPS ‘L

1.1

FUSE

WHT

Notes ,

ACH =

115VAC

= 220/240 VAC (50HZ)

’

+41.7 VDC

CN4. _ . _ . . . _

CN2

GRY

RlRRnN

CABLE

,CN-3 n

CN2

RED

‘_‘--I

PWB

J1 ” 2’1

PRINTHEAD RIBBON

CABLE PL 2.1

Encoder

i J2

Ink Level

Control Console PWB

Assembly

VDC

GND

XJ6C

Figure 2. Power distribution

6198

2-7

GND

Status Code Indicators

1.1 Power On RAP

2.1 Selection / Indication RAP

Load paper. Disconnect and then reconnect the power cord while observing the LEDs.

All LEDs light momentarily when the power cord is reconnected. Y N

One or more LEDs light. Y N

Go to 1.1 Power On RAP.

Go to Flag 1 and Flag 2 and check for an open wire. If OK, replace the Control Console PWB .

All LEDs go out in approximately 10 seconds. Y N

If the Power LED remains on (flashing), go to Flag 3 and check for an open wire. If OK, replace the Control Console PWB.

Press and hold the Power button for approximately 2 seconds to turn on the printer. Press and hold the Resume/FF button for 2 seconds.

Paper feeds. Y N

Go to Flag 5 and check for an open wire. If good, go to 8.1 Paper Feed RAP.

Press the Cartridge Change button.

The carriage moves to the center position. Y N

Go to Flag 4 and check for an open wire. If OK, replace the Control Console PWB.

For printer set up problems when printing from a DOS application, consult GP 2 Printing with DOS Procedure in Section 6.

Status Code Indicators 6/98

2.1 Selection / Indication RAP 2-8 XJ6C

CONTROL CONSOLE PWB

PL 1.1

GND

Power On

VDC

_~ A_ _ 1.

-_I- _ _~_ ____ ______. I

--I---

__~-.__!L_

CARTRIDGE CHANGE / CLEAN ACTUATED (L)

I I

I I GRY

__.__-GND-__.-._ __

PWR ON LED (H)

POWER / RESET ACTUATED

BLACK INK LED

CYAN INK LED (H) +5VDC

MAGENTA INK LED (H)

YELLOW INK LED (HI +5VDC

RED

+SVDC

GRY

ERROR LED (H)

RESUME ’ FF *CT”*TEDo+5VDC_:---.

GRY

GRN

VDC

GRY

GRN

+SVDC

(H) +SVDC

+SVDC

\ --

(L) +SVDC

+SVDC

’

;

+5 VDC

Power/Reset

I I

! I

;

I I

I I I

I I

VDC

Black

I 1

XJ6C

6198

2-9

Status Code Indicators

2.1 Selection I Indication RAP

6.1 Carriage RAP

6.2 Encoder RAP

Disconnect and then reconnect the power cord. Press and hold the Power switch.

The carriage moves. Y N

• Go to Flag 1 and check the ribbon cable for being open or damaged.

• Go to Flag 2 and check for an open circuit. If the wire is good, replace the Main PWB.

• If problem still exists, replace the printer.

Perform the following:

• Check that the Printhead ribbon cable going to CN4 on the Main PWB is connected properly.

• Go to Flag 2 and Flag 3 and check for an open circuit.

• If the wires are good, replace the Printhead Ribbon Cable (PL 2.1).

• If the problem continues, replace the Main PWB (PL 1.1).

• If the problem still exists replace the printer.

• Go to Flag 4 and check for an open circuit.

• Replace the Encoder.

• Go to 6.1 Carriage RAP.

Status Code Indicators 6/98

6.1 Carriage RAP / 6.2 Encoder RAP 2-10 XJ6C

MAIN PWB PL 1.1

+42 VDC

i7-

i8-

I 1

a--

p-t

-8

-66

ill

l-m

’

I I

I I I I

-26 I

’

-27 I

-i8 I

N/C

Led On (H)) +I .2 VDC

‘4’

I I

’

++2%ir

I I

-6-3’

6 7

I I I I I I

I I I I

, GRY

I I

J-

P/J4

GRY AI

I I I I I I I I

i GRN ” t

I I I I I

GRY

+42 VDC +42 VDC

Carriage Step 0 Signal

Carriage Step 1 Carriage Step 2 Signal Carriage Step 3 Signal

IENCODER

PL2.1

P/J9

I I

; 1

-;_

I I I

’

I Signal

--L3

Carriage Position

Signa’

Carriage Position

J+

RED

BRN

YEL

RED

BLK

ORN

Encoder

Carriage

Carriage Motor

MOT1

XJ6C

NOTES: ,

WHEN THE CARRIAGE IS NOT MOVING, THE VOLTAGE IS EITHER +5 VDC OR 0 VDC. WHEN THE CARRIAGE IS MOVING, THE VOLTAGE IS APPROXIMATELY 2.6 VDC.

6198

2-l 1

Status Code Indicators

6.1 Carriage RAP / 6.2 Encoder RAP

8.1 Paper Feed RAP

Clear any paper in the printer. Disconnect and then reconnect the power cord. Press and hold the Power switch for about 2 seconds. Press and hold the Resume/FF button for 2 seconds to print the demo print.

The paper feeds or partially feeds. Y N

• Check that the Paper Tray is installed correctly (REP 1.1)

• Go to Flag 1 and check the cam sensor circuit for an open.

• If OK, go to Flag 3 and check for an open circuit. If paper feed motor circuit is defective, replace the printer.

• If the wires are good, replace the Main PWB.

• Go to Flag 2 and check the paper feed switch circuit for an open.

• If OK, go to Flag 3 and check for an open circuit. If paper feed motor is defective, replace the printer.

• Replace the Retard Pad.

• If the problem still exists, replace the Main

PWB before replacing the printer.

Status Code Indicators 6/98

8.1 Paper Feed RAP 2-12 XJ6C

dAIN PWB ‘L

1.1

RIBBON

CABLE IRELAY PWB

CN3

P/J 1

-Go

l-6

1’7

I I

’

PL 2.1

WHT

Paper Sensed

(H) +SVDC

BLK

P/J6

i i

. 5

’

CAM SENSOR Ql

WHT

I I I I I

BLK

RED

+42 VDC +42 VDC

Paper Feed Step 0 Signal

Paper Feed Step 1 Paper Feed Step 2 Signal Paper Feed Step 3 Signal + BLK

Cam (L) +5 VDC

IPAPER FEED

RED

YEL

MOTOR MOT2

BRN

ORN

Paper Feed

Switch

Motor MOT2

XJ6C

6/98

2-13

Status Code Indicators

8.1 Paper Feed RAP

9.1 Blank Print RAP

Initial Action:

Ensure that the Printhead latch is positioned towards the rear.

Unlatch the Printhead, reset the Printhead and latch it back into position. If problem still exists:

• Replace the Printhead.

• Go to Flag 1 and check the ribbon cable for

being damaged.

• Check the terminals of J11 on the Carriage Assembly and J12 on the Ink Cartridge for being contaminated or damaged. Clean or repair as necessary.

• If the problem still exists, replace the Printhead Ribbon Cable (PL 2.1).

Status Code Indicators 6/98

9.1 Blank Print RAP 2-14 XJ6C

MAIN PWB

RIBBON

PL 2.1

PL 1.1

CONTROL

LOGIC

J11

CARRIAGE PL 2.1

IPRINTHEAD CARTRIDGE PL 2.2

J12

PRINTHEAD CONTROL LOGIC

IPRINTHEAD NOZZLES

J12

J11 (under carriage)

Carriage

PRINTHEAD

CABLE

CN4

6/98 Status Code Indicators

XJ6C 2-15 9.1 Blank Print RAP

Section Contents

Title Page Image Quality Analysis RAPs

IQ 1 Image Defect Entry RAP....................3-2

3. Image Quality

6/98 Image Quality RAPs

XJ6C 3-1 Section Contents

IQ 1 Image Defect Entry RAP

1. Print the Test Print: a. Load paper into the Paper Tray. b. Press and hold the Power on / Reset

button for approximately 2 seconds and then release, to switch the Printer power off.

c. While pressing and holding the

Resume/FF button press and release the Power on / Reset button. The printer

prints the test print shown in Figure 1. When the test print is complete, the printer initializes and returns to the Ready status.

d. If the test print fails to print, repeat steps a

through c.

2. Refer to the DEFECT Column in Table 1 that best describes the image quality problem.

3. If the problem is with external input only, replace the Main PWB.

Figure 1. Test Print

Image Quality RAPs 6/98

IQ1 Image Defect Entry RAP 3-2 XJ6C

DEFECT CAUSE SOLUTION

3. Image Quality

Blank print

White horizontal lines and Streaks

Print is faint or missing

Blurry or Jagged vertical lines

• Printhead

• The Printhead nozzles may be

blocked.

• A non recommended paper is being used or the paper is damp.

• Defective Cartridge

• The ink supply may be nearly

empty.

• The Print Head nozzles may be blocked.

• Print Head alignment

• Paper

1. Remove and reinstall the Print Head.

2. Press the Cartridge Change / Clean button for 2 seconds to clean and restore the Print Head. Repeat if necessary.

If the problem still exists go to the 9.1 Blank Print RAP. Perform the following:

1. Press the Cartridge Change / Clean button for 2 seconds to clean and restore the Print Head.

2. Make another Test Print. If the print still has lines and streaks repeat the above process up to 5 times.

3. If the problem still exists, replace the Print Head.

Replace the paper.

Perform the following:

1. Press and hold the Cartridge Change / Clean button for 2 seconds to clean and restore the Print Head..

2. Run a Test Print. If the print is still faint, Repeat the process 2 more times.

3. If the problem is still not corrected replace the Print Head.

Perform ADJ 2.0 Printhead Alignment Procedure If the problem still exists switch the printer to the High Quality print mode. Turn the paper over to print on the opposite side.

Print image is clipped or off edge of media

• Print off edge of media

• Document margins may exceed

printer margins.

Ensure that the Print Driver setup has the correct selection of media size and type.

Adjust margins in the application as necessary.

Table 1. Image Defect Table

6/98 Image Quality RAPs

XJ6C 3-3 Section Contents

Section Contents

Title Page

Repairs

REP 1.0 Printhead.................................4-2

REP 1.1 Paper Tray..............................4-3

REP 1.2 Top Cover............................... 4-4

REP 1.3 Main Cover..............................4-5

REP 1.4 Exit Guide...............................4-7

REP 1.5 Paper Feed / Carriage Assy.....4-8

REP 1.6 LVPS Assembly.....................4-11

REP 1.7 Main PWB.............................4-12

REP 1.8 Waste Ink Pad.......................4-14

REP 1.9 Pump ....................................4-15

REP 1.10 Maintenance Station..............4-16

REP 1.11 Encoder.................................4-18

4. Repairs / Adjustments

REP 1.12 Control Console PWB ...........4-20

REP 1.13 Paper Tray Switch (SW 1).....4-21

REP 1.14 Retard Pad............................4-22

REP 1.15 Printhead Ribbon Cable.........4-24

REP 1.16 Ink Level Sensor ...................4-27

REP 1.17 Carriage Latch Lever.............4-28

Adjustments

ADJ 2.0 Printhead Alignment.............. 4-29

6/98 Repairs / Adjustments

XJ6C 4-1 Section Contents

REP 1.0 Printhead

lock lever

Parts List on PL 2.2

Removal

1. Open the Top Cover (PL 1.1).

2. Center the carriage using either of the following procedures:

• Press the Cartridge Change / Clean

button.

WARNING

Switch off the power. Disconnect the power cord from the wall outlet.

• Grasp and manually move the belt

(PL 2.1) in order to center the Printhead (Figure 1).

Printhead

CAUTION

Store the Printhead in the Storage Box. Leaving the Printhead removed for long periods of time will cause the ink nozzles to dry out. Image quality defects or a blank page could result. If necessary, prime the Printhead after reinstallation .

3. Move the Printhead lock lever toward the front of the printer.

4. Lift and remove the Printhead. Store it in the Storage Box.

Replacement

1. Install the Printhead onto the Printhead vertical guide.

2. Move the Printhead lock lever toward the rear of the printer.

3. Close the Top Cover.

4. Press the Resume / FF button to prime the Printhead.

belt

Printhead

0400101A-LAT

Figure 1.

Repairs 6/98

Cartridge Change / Clean

Resume / FF

REP 1.0 4-2 XJ6C

REP 1.1 Paper Tray

0400112A-LAT

Parts List on PL 1.1

Removal

1. Remove the Paper Output Shelf (PL 1.1).

2. Press the two handles toward the rear of the printer to release the latches (Figure 1).

3. Pivot the Paper Tray toward the back of the printer to disengage the three tabs at the bottom of the Paper Tray from the tabs on the Paper Feed / Carriage Assembly.

4. Lift the Paper Tray from the printer.

Paper

Tray

Handles

Replacement

1. Retract the moveable face of the Paper Tray by pressing it toward the back of the Paper Tray.

2. Insert the Paper Tray into the printer ensuring the moveable face is behind the cam (Figure 2).

3. Engage the three tabs at the bottom of the Paper Tray with the tabs on the Paper Feed / Carriage Assembly.

4. Rotate the Paper Tray toward the front of the printer.

5. Engage the two latches by gently pulling the handles downward and toward the front of the printer until the latches snap into position.

6. Reinstall the Paper Output Shelf.

Cam must be positioned here

0400111A-LAT

Figure 1.

Figure 2.

6/98 Repairs

XJ6C 4-3 REP 1.1

REP 1.2 Top Cover

Parts List on PL 1.1

Removal

1. Open the Top Cover (PL 1.1).

2. Utilizing a screwdriver or similar tool, slightly separate the Top Cover and Main Cover at either pivot to release the Top Cover pivot from the Main Cover (Figure 1).

3. Lift the Top Cover from the printer.

Top Cover

Replacement

1. Insert either Top Cover pivot into the corresponding Main Cover pivot hole.

2. Utilizing a screwdriver or similar tool, slightly separate the Top Cover and Main Cover at the opposite pivot.

3. Position the Top Cover pivot to engage with the pivot hole of the Main Cover.

4. Close the Top Cover.

Main Cover

0400121A-LAT

Figure 1.

Repairs 6/98

REP 1.2 4-4 XJ6C

REP 1.3 Main Cover

Parts List on PL 1.1

Removal

CAUTION

Store the Printhead in the Storage Box. Leaving the cartridge removed for long periods of time will cause the ink nozzles to dry out. Image quality defects or a blank page could result. If necessary, prime the Printhead after reinstallation .

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord from the wall outlet.

2. Remove the Paper Output Shelf (PL 1.1).

3. Remove the Paper Tray (REP 1.1).

4. Remove the Top Cover (REP 1.2).

5. Lay the printer on it’s back; release the three front latch tabs (Figure 1).

CAUTION

While removing the Main Cover from the printer, take care not to damage the ribbon cable that is connected to the Control Console PWB, which is located inside the Main Cover.

NOTE: The rear of the Main Cover has three locator tabs and two latch tabs.

6. Return the printer to its normal operating position. Lift and hold the front of the cover slightly while releasing the two rear latch tabs. Then lift the rear of the cover and pivot towards the FRONT of the printer to remove.

Replacement

1. Ensure the ribbon cable is properly routed and not twisted during Main Cover installation.

2. If previously disconnected, reconnect ribbon cable to the Control Console PWB.

3. Position the Main Cover on the printer. Align and latch the rear latches; then the front latches.

4. Reinstall the following: a. Top Cover (REP 1.2)

b. Paper Tray (REP 1.1) c. Paper Output Shelf (PL 1.1) d. Printhead (REP 1.0)

latch tabs

Figure 1.

6/98 Repairs

0400131A-LAT

XJ6C 4-5 REP 1.3

PAGE INTENTIONALLY BLANK

Repairs 6/98

4-6 XJ6C

REP 1.4 Exit Guide

apply

Parts List on PL 2.2

Removal

CAUTION

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord from the wall outlet.

2. Remove the Paper Output Shelf (PL 1.1).

3. Remove the Top Cover (REP 1.2).

4. Position both thumbs at the lower, front corners of the Exit Guide (Figure 1). Apply modest pressure simultaneously toward the rear and up to unlatch the Exit Guide.

5. Rotate the guide approximately 90° up and toward the rear of the printer.

6. Lift the Exit Guide from the printer.

Replacement

1. Hold the Exit Guide so the star wheels (10) are facing the front of the printer.

2. Lower the Exit Guide into the printer to engage the pivots with the slots in the Paper Feed / Carriage Assembly.

3. Rotate the Exit Guide completely toward the front of the printer.

4. Position both thumbs at the lower, front corners of the Exit Guide (Figure 1). Apply moderate pressure simultaneously toward the rear and down to latch the Exit Guide.

5. Reinstall the Top Cover (REP 1.2).

6. Reinstall the Paper Output Shelf (PL 1.1).

7. Reinstall the Printhead (REP 1.0).

Exit Guide

pressure

here

Figure 1.

0400141A-LAT

6/98 Repairs

XJ6C 4-7 REP 1.4

REP 1.5 Paper Feed / Carriage Assembly

Parts List on PL 2.1

Removal

CAUTION

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Remove the Paper Output Shelf (PL 1.1).

3. Remove the Paper Tray (REP 1.1).

4. Remove the Top Cover (REP 1.2).

5. Remove the Main Cover (REP 1.3).

6. Loosen screw; disconnect ground wire from ground plate near front, left corner of Paper Feed / Carriage Assembly (Figure 1).

7. Disconnect ground wire from grounding plate at right side of printer (Figure 2).

ground wire

Figure 1. Left side

ground wire

0400151A-LAT

Figure 2. Right side

0400152A-LAT

Repairs 6/98

REP 1.5 4-8 XJ6C

REP 1.5 Paper Feed / Carriage

remove

disconnect

Assembly con’t.

Replacement

8. Remove the screws (2) from the two front corners of the Paper Feed / Carriage Assembly (Figure 3).

9. Lift the front of the assembly slightly, then slide the assembly toward the front of the printer until it contacts the front wall of the base.

10. Lift the front of the assembly to access the Main PWB ribbon cable connectors, CN3 & CN4; disconnect from the Main PWB (Figure 4).

11. Remove the assembly from the base.

1. Lift the front of the assembly to access the Main PWB ribbon cable connectors, CN3 & CN4; reconnect to the Main PWB (Figure 4).

2. Allow the Paper Feed / Carriage Assembly to rest on the printer base. Slide the assembly rearward to engage the rear mounts.

3. Reinstall the two front screws

4. Reconnect the ground wire to the ground plate on the right side of the printer.

5. Reconnect the ground wire to the ground plate on the left, front corner of the printer; tighten screw.

6. Reinstall the following: a. Main Cover (REP 1.3) b. Top Cover (REP 1.2) c. Paper Tray (REP 1.1) d. Paper Output Shelf (PL 1.1) e. Printhead (REP 1.0)

Main PWB

screw

Figure 3.

6/98 Repairs

connectors CN3 & CN4

0400154A-LAT

Figure 4.

XJ6C 4-9 REP 1.5

PAGE INTENTIONALLY BLANK

Repairs 6/98

4-10 XJ6C

REP 1.6 LVPS Assembly

0400161A-LAT

1. disconnect

3. disengage

Parts List on PL 1.1

Removal

CAUTION

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the Power. Disconnect the power cord at the wall outlet.

2. Remove the Paper Output Shelf (PL 1.1).

3. Remove the Paper Tray (REP 1.1).

4. Remove the Top Cover (REP 1.2).

5. Remove the Main Cover (REP 1.3).

6. Remove the Paper Feed / Carriage Assembly (REP 1.5).

7. Disconnect LVPS power cord connector CN1 from the LVPS (Figure 1).

8. Remove the four mounting screws.

9. Slide the LVPS toward the right side of the printer to disengage LVPS connector CN2 from the Main PWB connector CN1; lift the LVPS from the printer.

Replacement

1. Position the LVPS into the printer base.

2. Slide the LVPS toward the left side of the printer to engage LVPS connector CN2 with the Main PWB (Figure 1).

3. Install the four mounting screws.

4. Reconnect the LVPS power cord connector CN1.

LVPS

CN2

Main PWB

5. Replace the following: a. Paper Feed / Carriage Assembly

(REP 1.5) b. Main Cover (REP 1.3) c. Top Cover (REP 1.2) d. Paper Tray (REP 1.1) e. Paper Output Shelf (PL 1.1) f. Printhead (REP 1.0)

CN1

XJ6C 4-11 REP 1.6

2. remove

screws (4)

6/98 Repairs

Figure 1.

REP 1.7 Main PWB

Parts List on PL 1.1

Removal

CAUTION

1. Remove the Printhead (REP 1.0). Store the cartridge in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Remove the Paper Output Shelf (PL 1.1).

3. Remove the Paper Tray (REP 1.1).

4. Remove the Top Cover (REP 1.2).

5. Remove the Main Cover (REP 1.3).

6. Remove the Paper Feed / Carriage Assembly (REP 1.5).

7. Remove the LVPS (REP 1.6).

8. Disconnect Main PWB connector CN2 from the Main PWB (Figure 1).

NOTE: The two screws securing the PC interface cable connector to the Main PWB are longer than the others. Ensure to replace them in their correct positions.

9. Remove the eight mounting screws and ground wire (Figure 1).

ground wire

NOTE: It may be necessary to unsecure the ribbon cable and ferrite from the printer base before removing the Main PWB.

NOTE: Exercise care not to deform the two PC interface cable connector wire-form locks during Main PWB removal.

10. Remove the Main PWB.

connector CN2

mounting screws (8)

Repairs 6/98

ferrite

0400171A-LAT

Figure 1. Main PWB

REP 1.7 4-12 XJ6C

REP 1.7 Main PWB (con’t)

Parts List on PL 1.1

Replacement

NOTE: There are 2 different length screws securing the Main PWB. Be sure to reinstall the two longer screws through the PC interface cable connector.

1. Position the Main PWB into the printer base.

2. Reinstall the ground wire as per Figure 1.

3. Reinstall mounting screws.

4. Reconnect connector CN2 to the Main PWB.

5. If previously unsecured, resecure ribbon cable and ferrite to the printer base.

6. Replace the following: a. LVPS (REP 1.6) b. Paper Feed / Carriage Assembly

(REP 1.5) c. Main Cover (REP 1.3) d. Top Cover (REP 1.2) e. Paper Tray (REP 1.1) f. Paper Output Output Shelf (PL 1.1) g. Printhead (REP 1.0)

6/98 Repairs

XJ6C 4-13 REP 1.7

REP 1.8 Waste Ink Pad

Parts List on PL 1.1

Removal

CAUTION

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Remove the following: a. Paper Output Shelf (PL 1.1)

b. Paper Tray (REP 1.1) c. Top Cover (REP 1.2) d. Main Cover (REP 1.3) e. Paper Feed / Carriage Assembly

(REP 1.5)

Replacement

1. Ensure flange on one end of the pad retainer is toward the right side of the printer.

2. Snap the retainer into position.

Waste Ink Pad retainer

Waste Ink Pad

3. Replace the following: a. Paper Feed / Carriage Assembly

(REP 1.5) b. Main Cover (REP 1.3) c. Top Cover (REP 1.2) d. Paper Tray (REP 1.1) e. Paper Output Shelf (PL 1.1) f. Printhead (REP 1.0)

locking tab (4)

3. Remove Waste Ink Pad retainer by releasing the four locking tabs with screwdriver or other similar tool (Figure. 1).

0400181A-LAT

Figure 1.

Repairs 6/98 REP 1.8 4-14 XJ6C

REP 1.9 Pump

outlet

inlet tube

mounting

Parts List on PL 2.1

Removal

CAUTION

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Remove the following: a. Paper Output Shelf (PL 1.1)

b. Paper Tray (REP 1.1) c. Top Cover (REP 1.2) d. Main Cover (REP 1.3) e. Paper Feed / Carriage Assembly

(REP 1.5)

Replacement

1. Install the pump onto the motor shaft.

2. Reinstall the two mounting screws.

CAUTION

Ensure the pump tubing is not kinked or otherwise restricted during reinstallation.

3. Route inlet tube as shown in Figure 1; reconnect; clamp into position.

4. Route outlet tube as shown in Figure 1; install two cable ties on tube at either side of frame to ensure tube exits onto Waste Ink Pad.

5. Reinstall the following: a. Paper Feed / Carriage Assembly

(REP 1.5) b. Main Cover (REP 1.3) c. Top Cover (REP 1.2) d. Paper Tray (REP 1.1) e. Paper Output Shelf (PL 1.1) f. Printhead (REP 1.0)

3. Remove the Pump from the Paper Feed / Carriage Assembly.

a. Note routing of inlet tube; disconnect tube

at connector beneath Maintenance Station (Figure 1).

b. Note routing of outlet tube; remove cable

tie; slide tube through frame.

c. Remove two Pump mounting screws.

(Figure 2).

d. Slide pump from motor shaft.

connector

Figure 1.

6/98 Repairs

tube

Pump

0400191A-LAT

screw

0400192A-LAT

Figure 2.

XJ6C 4-15 REP 1.9

REP 1.10 Maintenance Station

Parts List on PL 2.1

Removal

CAUTION

Store the Printhead in the Storage Box. Leaving the Printhead removed for long periods of time will cause the ink nozzles to dry out. Image quality problems or a blank page could result. If necessary, prime the Printhead after reinstallation.

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Remove the following: a. Paper Output Shelf (PL 1.1)

b. Paper Tray (REP 1.1) c. Top Cover (REP 1.2) d. Main Cover (REP 1.3)

3. Observe the routing of the tube from the Maintenance Station to the connector located below the Maintenance Station. Disconnect this tube at the tube connector.

4. Move the Printhead carriage to the extreme right side of the printer.

5. Remove the mounting screw (Figure 1).

6. Lift and hold the left side of the paper pressure baffle approximately six millimeters (mm) away from the Maintenance Station.

NOTE: Observe the tube routing during Maintenance Station removal.

7. Slide the Maintenance Station toward the front of the printer to disengage the mounting tabs, then lift upward to remove Maintenance Station from the printer.

mounting screw

paper pressure baffle

Maintenance Station

0401101A-LAT

Figure 1.

Repairs 6/98

REP 1.10 4-16 XJ6C

REP 1.10 Maintenance Station (con’t)

Replacement

CAUTION

Ensure the Printhead carriage is positioned to the extreme right side of the printer.

1. Route the Maintenance Station tube as observed during removal.

2. Lift and hold the left side of the paper pressure baffle approximately six millimeters away from the Maintenance Station.

3. Lower the Maintenance Station into position to insert the mounting tabs.

4. Slide the Maintenance Station toward the rear of the printer to engage the mounting tabs.

5. Secure with mounting screw (machine threads).

6. Connect tube to its mating connector.

7. Ensure tube is routed between the pinch arm and the Maintenance Station body (Figure 2).

8. Reinstall the following: a. Main Cover (REP 1.3) b. Top Cover (REP 1.2) c. Paper Tray (REP 1.1) d. Paper Output Shelf (PL 1.1) e. Printhead (REP 1.0)

tube

pinch arm

paper pressure baffle

Figure 2.

0401102A-LAT

6/98 Repairs

XJ6C 4-17 REP 1.10

REP 1.11 Encoder

connector (J4)

Parts List on PL 2.1

Removal

CAUTION

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

5. Rotate the carriage shaft cams so that their flats are aligned with the sides of the slot on each side frame (Figure 1).

NOTE: Expect moderate to heavy resistance when removing carriage end cams from printer side frames.

CAUTION

Ensure no portion of carriage is beneath ink level sensor during carriage removal. Simultaneously slide both cams from their respective slots (Figure

2).

6. Remove the carriage from printer side frames (Figure 2).

7. Position the Paper Feed / Carriage Assembly as shown in Figure 3..

8. Disconnect the Encoder connector (J4) from the Relay PWB (Figure 3).

carriage

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Remove the following: a. Paper Output shelf (PL 1.1)

b. Paper Tray (REP 1.1) c. Top Cover (REP 1.2) d. Main Cover (REP 1.3) e. Paper Feed / Carriage Assembly

(REP 1.5)

f. Maintenance Station (REP 1.10).

3. Remove the belt (PL 2.1) from the carriage motor pulley (right end).

4. Remove the belt from the Encoder pulley (left end).

CAUTION

Be aware there is a ribbon cable attached to the bottom of the carriage assembly. Ensure not to damage it while removing carriage assembly.

CAUTION

Take care not to damage ribbon cable while removing the carriage.

slot

side frame

cam

0401111A-LAT

Figure 1.

ink level sensor

Figure 2.

Encoder

Relay PWB

Repairs 6/98

REP 1.11 4-18 XJ6C

0401113A-LAT

Figure 3.

REP 1.11 Encoder (con’t)

Encoder plate

0401115A-LAT

Parts List on PL 2.1

NOTE: Observe Encoder harness routing before removing Encoder.

9. Release the Encoder harness from the carriage tabs.

10. Return the Paper Feed / Carriage Assembly to its upright position.

11. Remove the screw and ground strap (Figure 4).

12. Remove the two Encoder plate mounting screws; remove the Encoder plate and Encoder (Figure 4).

13. Disconnect harness from Encoder.

14. Remove the screw securing Encoder to Encoder plate; remove Encoder; retain spring.

ground strap

Replacement

1. Position and hold the spring on the plate; install Encoder on the plate; reinstall the screw securing Encoder to the plate, but DO NOT tighten.

2. Route the Encoder harness through Paper Feed / Carriage Assembly.

3. Reinstall Encoder on Paper Feed / Carriage Assembly; install two mounting screws and the ground strap.

4. Reconnect Encoder harness (J4) to Relay PWB; secure harness to carriage tabs.

5. Reinstall Maintenance Station; reinstall the machine screw.

6. Reconnect Maintenance Station tube.

7. Ensure tube is properly located behind the pinch arm. Consult Maintenance Station Replacement, REP 1.10.

8. Reinstall carriage into Paper Feed / Carriage Assembly. Ensure carriage ribbon cable is properly secured and not twisted.

9. Rotate both carriage shaft cams to align pointer with index mark (Figure 5).

10. Reinstall carriage belt onto Encoder pulley (left side).

11. Reinstall carriage belt onto drive motor pulley.

12. Tighten screw that secures Encoder to the plate.

13. Ensure both ground straps (left and right side) are firmly contacting the carriage shaft. Reform straps as required.

14. Reinstall the following: a. Paper Feed / Carriage Assembly

(REP 1.5) b. Main Cover (REP 1.3) c. Top Cover (REP 1.2) d. Paper Tray (REP 1.1) e. Paper Output Shelf (PL 1.1) f. Printhead (REP 1.0)

XJ6C 4-19 REP 1.11

Figure 4.

mounting screws

pointer

index mark

Figure 5.

6/98 Repairs

REP 1.12 Control Console PWB

0401121A-LAT

Control

ribbon cable

mounting

Parts List on PL 1.1

Removal

CAUTION

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Remove the following: a. Paper Output Shelf (PL 1.1)

b. Paper Tray (REP 1.1) c. Top Cover (REP 1.2) d. Main Cover (REP 1.3)

3. Position the Main Cover on its top.

NOTE: There is non-captured hardware under the Control Console PWB. DO NOT reposition the Main Cover with the PWB removed.

Replacement

1. Connect the ribbon cable to the Control Console PWB.

2. Ensure the buttons and lenses are properly positioned in the Main Cover. Carefully install the PWB into the Main Cover. Secure with the three mounting screws.

Console PWB

3. Reinstall the following: a. Reinstall the Main Cover (REP 1.3).

b. Reinstall the Top Cover (REP 1.2). c. Reinstall the Paper Tray (REP 1.1). d. Reinstall the Paper Output Shelf

(PL 1.1).

e. Reinstall the Printhead (REP 1.0).

4. Remove the mounting screws (3) from the Control Console PWB; remove the PWB (Figure 1).

5. Disconnect the ribbon cable from the PWB.

Repairs 6/98

connector

screws (3)

Figure 1.

REP 1.12 4-20 XJ6C

REP 1.13 Paper Tray Switch (SW

Parts List on PL 2.1

Removal

CAUTION

Store the Printhead in the Storage Box. Leaving the Printhead removed for long periods of time will cause the ink nozzles to dry out. Image quality problems or a blank print could result. If necessary, prime the Printhead after reinstallation.

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Remove the following: a. Paper Output Shelf (PL 1.1)

b. Paper Tray (REP 1.1) c. Top Cover (REP 1.2) d. Main Cover (REP 1.3) e. Exit Guide (REP 1.4) f. Paper Feed / Carriage Assembly

(REP 1.5)

3. Position the Paper Feed / Carriage Assembly as shown in Figure 1.

4. Disconnect J3 from the Relay PWB). See Figure 1.

5. Remove mounting screw.

6. Remove Paper Tray Switch.

Replacement

1. Position the Paper Tray Switch (SW 1) in the Paper Feed / Carriage Assembly. Reinstall the mounting screw.

2. Connect J3 to the Relay PWB.

J 3

3. Reinstall the following: a. Paper Feed / Carriage Assembly

(REP 1.5) b. Exit Guide (REP 1.4) c. Main Cover (REP 1.3) d. Top Cover (REP 1.2) e. Paper Tray (REP 1.1) f. Paper Output Shelf (PL 1.1) g. Printhead (REP 1.0)

Paper Tray Switch

mounting screw

Figure 1.

6/98 Repairs

0401131A-LAT

XJ6C 4-21 REP 1.13

REP 1.14 Retard Pad

Parts List on PL 2.1

Removal

CAUTION

Leaving the Printhead removed for long periods of time will cause the ink nozzles to dry out. Image quality problems or a blank print could result. If necessary, prime the Printhead after reinstallation.

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Remove the following: a. Paper Output Shelf (PL 1.1)

b. Paper Tray (REP 1.1) c. Top Cover (REP 1.2) d. Main Cover (REP 1.3) e. Exit Guide (REP 1.4) f. Paper Feed / Carriage Assembly

(REP 1.5)

3. Position the Paper Feed / Carriage Assembly as shown in Figure 1

4. Remove the Retard Pad mounting screw (Figure 1).

5. Remove the retainer bracket and spring.

6. Remove the Retard Pad.

Replacement

1. Position the Retard Pad in the Paper Feed / Carriage Assembly.

2. Reinstall the spring; then the mounting bracket.

3. Reinstall the mounting screw.

4. Reinstall the following: a. Paper Feed / Carriage Assembly

(REP 1.5) b. Exit Guide (REP 1.4) c. Main Cover (REP 1.3) d. Top Cover (REP 1.2) e. Paper Tray (REP 1.1) f. Paper Output Shelf (PL 1.1) g. Printhead (REP 1.0)

retainer bracket

Retard Pad mounting screw

0401141A-LAT

Figure 1.

Repairs 6/98

REP 1.14 4-22 XJ6C

PAGE INTENTIONALLY BLANK

6/98 Repairs

XJ6C 4-23

REP 1.15 Printhead Ribbon Cable

Parts List on PL 2.1

Removal

CAUTION

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Remove the following: a. Paper Output Shelf (PL 1.1)

b. Paper Tray (REP 1.1) c. Top Cover (REP 1.2) d. Main Cover (REP 1.3) e. Paper Feed / Carriage Assembly

(REP 1.5)

3. Remove the belt (PL 2.1) from the carriage motor pulley (right end).

4. Remove the belt from the Encoder pulley (left end).

5. Rotate the carriage shaft cams so that their flats are aligned with the sides of the slot on each side frame (Figure 1).

CAUTION

Ensure no portion of carriage is beneath Ink Level Sensor during carriage removal. During removal / replacement, it is necessary to simultaneously slide both cams from / to their respective slots. Be aware there is a ribbon cable attached to the carriage PWB. Ensure not to damage the jack or connector lock while removing carriage (Figure 2).

slot

side frame

cam

0401151A-LAT

Figure 1.

carriage

Ink Level Sensor

Figure 2.

NOTE: Expect moderate to heavy resistance when removing carriage from printer side frames.

Repairs 6/98

REP 1.15 4-24 XJ6C

REP 1.15 Printhead Ribbon Cable

connector

cable

(con’t)

Parts List on PL 2.1

6. Remove the carriage from the Paper Feed / Carriage Assembly.

7. Remove the carriage shaft from carriage.

8. Position the carriage upside down (Figure 3).

9. Slide the lock to the unlocked position.

10. Disconnect the ribbon cable from the carriage PWB.

11. Slide the ribbon cable from the carriage cable restraint.

12. Note the installed position of the ribbon cable on the Paper Feed / Carriage Assembly in the area shown in Figure 4c.

13. Release the cable from the two cable edge restraints.

14. Slide the cable to the left through the 45° slot; then pull the cable upward and out through the slotted opening.

slotted opening

Figure 4a.

Figure 4b.

45°

connector

ribbon cable

restraint

lock

0401153A-LAT

Figure 3.

slot

edge restraints

Figure 4c.

0401154A-LAT

6/98 Repairs

XJ6C 4-25 REP 1.15

REP 1.15 Printhead Ribbon Cable

0401115A-LAT

(con’t)

Parts List on PL 2.1

Replacement

1. Insert the appropriate end of the ribbon cable through the slotted opening in the Paper Feed / Carriage Assembly approximately three inches (Figure 4a).

2. Gently maneuver the cable to the right through the 45° slot until positioned as shown in Figure 4b.

3. Pull the cable downward through the slotted opening until the 45° fold is positioned as shown in Figure 4c.

4. Lock the cable beneath the cable edge restraints. The printed side of the ribbon cable should be facing upward.

5. Insert the free end of the cable into the carriage PWB connector; slide the connector lock to the locked position. Ensure the cable is below the molded cable restraint (Figure

3).

6. Reinstall the carriage shaft into the carriage.

CAUTION

Ensure the ribbon cable is not twisted after the carriage has been reinstalled in it’s normal operating position.

7. Reinstall the cams on the carriage shaft; reattach carriage to the Paper Feed / Carriage Assembly; position the cams as shown in Figure 5.

Figure 4a.

45° slot

Figure 4c.

slotted opening

edge restraints

8. Reinstall the Paper Feed / Carriage Assembly (REP 1.5).

9. Reinstall the Main Cover (REP 1.3).

10. Reinstall the Top Cover (REP 1.2).

11. Reinstall the Paper Tray (REP 1.1).

12. Reinstall the Paper Output Shelf (PL 1.1).

Figure 4b.

pointer

index mark

0401154A-LAT

Figure 5.

Repairs 6/98

REP 1.15 4-26 XJ6C

REP 1.16 Ink Level Sensor

0401161A-LAT

Parts List on PL 2.1

Removal

CAUTION

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Remove the following: a. Paper Output shelf (PL 1.1)

b. Paper Tray (REP 1.1) c. Top Cover (REP 1.2) d. Main Cover (REP 1.3)

3. Disconnect the ribbon cable from the Ink Level Sensor PWB (Figure 1).

4. Remove the screw; remove the Ink Level Sensor.

Ink Level Sensor

screw

Figure 1.

6/98 Repairs

XJ6C 4-27 REP 1.16

REP 1.17 Cartridge Latch Lever

Parts List on PL 2.1

3. While still squeezing the carriage, lift up on the latch and tilt it to the right as you move the bottom of the latch to the left (Figure 2).

4. Place the cartridge latch lever cam pin in the cartridge latch lever as shown (Figure 3).

Removal

CAUTION

1. Remove the Printhead (REP 1.0). Store the Printhead in the Storage Box.

WARNING

Switch off the power. Disconnect the power cord at the wall outlet.

2. Squeze the sides of the carriage together (Figure 1).

Latch

Figure 2. Removing the Lever and Pin

Cartridge Latch Lever

Cartridge Latch Lever Cam Pin

Figure 3. Assembling the Lever and Pin

5. Squeeze the carriage together and insert the lever and pin into the carriage (Figure 2).

Figure 1. Squeezing the Carriage

Repairs 6/98

REP 1.17 4-28 XJ6C

ADJ 2.0 Printhead Alignment

Adjust Test Pattern

Purpose

The purpose is to ensure the vertical print alignment is within specification.

Adjustment

1. Print the Bi-Directional Printing Alignment Test Pattern:

NOTE: Before this adjustment can be performed, electrical power must be disconnected from the printer for at least 10 seconds.

a. Disconnect the power cord from the wall

outlet for at least 10 seconds, then

reconnect. b. Load paper into the Paper Tray. c. While pressing and holding the Cartridge

Change / Clean button, press and release

the Power On / Reset button. The printer

will print the test pattern shown in Figure 1. d. If the test pattern fails to print, repeat steps

a through c.

2. Check for correct vertical alignment of the center grid line set (00). If OK, press the Power On / Reset button to exit the test. Otherwise, adjust as necessary.

NOTE: Figure 1 shows the test pattern. Each vertical line is formed by three short lines. If the three lines are properly aligned, perfectly straight lines will be printed. The adjustment moves only the middle line of the three lines. The adjustment range is-16 to +16.

NOTE: The grid line set numbering on the test pattern is relative to the actual setting (0 to +16). If the actual setting is 10, then grid line set at 00 equals 10 and grid line set at

-1 equals 9, etc. Observe the Bi-directional Grid Adjust Test Pattern to determine whether the value needs to be increased or decreased.

3. Change the current value to a setting that will align the three short lines of the center grid line set.

a. Press the Resume / FF button to decrease

the current value.

b. Press the Cartridge Change / Clean button

to increase the current value.

c. Store the new value by pressing the Power

On / Reset button.

4. Press the Power On / Reset button to save the new setting and exit the test.

Figure 1. Bi-directional Grid

6/98 Adjustments

XJ6C 4-29 ADJ 2.0

Center Grid Line Set (current setting)

Repairs 6/98

REP 1.17 4-30 XJ6C

PAGE INTENTIONALLY BLANK

6/98 Adjustments

XJ6C 4-31 ADJ 2.0

Section Contents

Title Page Parts List

PL 1.1 Printer Components........................5-2

PL 2.1 Paper Feed / Carriage

Assembly Components (Part 1 Of 2)......... 5-3

PL 2.2 Paper Feed / Carriage

Assembly Components (Part 2 Of 2)..........5-4

Part Number Index...................................5-5

5. Parts List

6/98 PARTS LIST SECTION

XJ6C 5-1 Section Contents

PL 1.1 PRINTER COMPONENTS

‘r

ITEM

PART #

DESCRIPTION

EXPLODED ON PL 2.1

IPL

2.2

“‘---.-----1

i”-

7 8 9

50K35130 50K35140 48K78958 48E42860

101

K29360

60K1011

16OK31980

105Kl6290

19E40730

PAPER OUTPUT SHELF PAPER TRAY MAIN COVER TOP COVER CONTROL CONSOLE PWB PAPER FEED/CARRIAGE

ASSEMBLY (NOT SPARED) STORAGE BOX MAIN PWB (ADJ 2.1) PRINTER BASE

(NOT SPARED) LOW VOLTAGE

POWER SUPPLY WASTE INK PAD

(NOT SPARED)

PARTS LIST SECTION

PLI .I

OOCOOO1A-LAT

6/98

5-2

XJ6C

PL 2.1 PAPER FEED / CARRIAGE ASSEMBLY COMPONENTS (PART 1 OF 2)

ITEM PART # DESCRIPTION

1 -- PART OF PAPER FEED /

CARRIAGE ASSEMBLY

(REF: PL1.1 ITEM 6) 2 97K25461 MAINTENANCE STATION 3 -- BELT (P/O ITEM 1)

4 -- GROUND STRAP

(P/O ITEM 1) 5 146K490 ENCODER (ADJ 2.1 2.2) 6 -- ENCODER PLATE

(P/O ITEM 1) (ADJ 2.1 2.2) 7 -- CARRIAGE (P/O ITEM 1)

(ADJ 2.1 2.2) 8 127K22240 PUMP 9 -- RELAY PWB (P/O ITEM 1) 10 130K56490 PAPER FEED SWITCH (SW1) 11 -- RETARD PAD RETAINER

(P/O ITEM 1) 12 -- SPRING (P/O ITEM 1) 13 19E35770 RETARD PAD 14 -- PAPER FEED / CARRIAGE

HOUSING (P/O ITEM 1) 15 12E8630 RIBBON CABLE PRINTHEAD 16 130K58470 SENSOR INK LEVEL 17 29E29490 CARTRIDGE LATCH LEVER

CAM PIN 18 11E09080 CARTRIDGE LATCH LEVER

6/98 PARTS LIST SECTION

XJ6C 5-3 PL2.1

PL 2.2 PAPER FEED / CARRIAGE ASS,EMBLY (PART 2 OF 2)

ITEM

PART # DESCRIPTION

1{ 2 -

14)

2 3

5 6

7 8

38Kl1210 8R7638

8R7871 8R7660 8R7661 8R7662 8R7663

PART OF PAPER FEED / CARRIAGE ASSEMBLY (REF: PLI .I ITEM 6)

EXIT GUIDE BLACK PRINTHEAD PAPER FEED / CARRIAGE

HOUSING (PART OF ITEM 1) COLOR/PHOTO PRINTHEAD BLACK INK CARTRIDGE CYAN INK CARTRIDGE MAGENTA INK CARTRIDGE YELLOW INK CARTRIDGE

PARTS LIST SECTION

PL2.2

6/98

5-4

XJ6C

Part Number Index Part PL

Number LOC.

8R7638..........2.2

8R7660..........2.2

8R7661..........2.2

8R7662..........2.2

8R7663..........2.2

8R7871..........2.2

11E09080......2.1

12E8630........ 2.1

19E35770......2.1

19E40730......1.1

29E29490......2.1

38K11210......2.2

48E42860......1.1

48K78958......1.1

50K35130......1.1

50K35140......1.1

60K1011........ 1.1

97K25461......2.1

101K29360....1.1

105K16290....1.1

127K22240....2.1

130K56490....2.1

130K58470....2.1

146K490........ 2.1

160K31980....1.1

6/98 Parts List Section

XJ6C 5-5 Part Number Index

Section Contents

6. General Procedures

Title Page

Diagnostics ....................................................6-2

GP 1 Printhead Test..................................... 6-2

GP 2 Printing with DOS................................ 6-3

Product Specifications ..................................6-4

Physical Characteristics ................................ 6-4

Electrical Requirements ................................ 6-4

Printer Capabilities ....................................... 6-4

Supplemental Tools and Supplies ................. 6-5

Printer Overview and Technical

Overview Introduction...................................6-7

Printer Overview...........................................6-8

Printer Specifications ................................ 6-8

Features and Operation.............................6-8

Introduction/safety notes ........................... 6-8

Printer installation .....................................6-8

Printer Operation.......................................... 6-8

Loading the paper ..................................... 6-8

Test print mode.........................................6-8

Connecting the printer to a computer.........6-8

Control panel.............................................6-8

Printing .....................................................6-8

Printer Maintenance......................................6-9

Cleaning....................................................6-9

Removal / Replacement of the

printer components....................................6-9

Technical Overview......................................6-10

Power and Control...................................... 6-10

Standby power ........................................ 6-10

Run control functions...............................6-10

Printing and Priming................................... 6-11

Printing ...................................................6-11

Cleaning and Priming..............................6-12

Ink Level Sensing.................................... 6-12

Title Page

Carriage Drive............................................. 6-14

Carriage drive..........................................6-14

Encoder...................................................6-15

Status code ............................................. 6-15

Paper Supply / Paper Feed.........................6-16

Paper supply............................................ 6-16

Paper feed...............................................6-16

Load and eject mechanism......................6-16

Sensors and Status Indicators..................... 6-17

Sensors................................................... 6-17

Status indicators......................................6-17

6/98 General Procedures

XJ6C 6-1 Section Contents

Diagnostics

GP 1 Printhead Test

Procedure

1. Print the Test Print: a. Load paper into the Paper Tray. b. Press and release the Power On / Reset

button to switch the Printer power off.

c. While pressing and holding the Resume /

FF button, press and release the Power On / Reset button. The printer prints the

test print shown in Figure 1. When the test print is complete, the printer initializes and returns to the Ready status.

d. If the test print fails to print, repeat steps

a through c.

Figure 1. Test Print

General Procedures 6/98

GP1 6-2 XJ6C

GP 2 Printing with DOS

Procedure

DOS mode operation requires the DOS application to send CMYK data to the DocuPrint XJ6C as if it were a HP 550c.

Note: The following procedure is required only if printing in DOS, not in Windows.

Note: You will need to have suitable HP 550c capable printer drivers for their DOS applications.

Note: Please refer to readme.txt in the DOS Panel setup for issues concerning this product.

Your DocuPrint XJ6C printer comes with an additional utility that has been designed for the DOS user. This utility is called the DOS Printer Panel. The DOS Printer Panel utility allows you to communicate with the printer directly from your computer. With this utility, you can do the following:

• Review and modify the current printer settings.

• Determine printer status and any error conditions.

Note: The following procedure is required only if printing in DOS, not in Windows 1. Please use the following steps to install your Xerox DOS printer panel onto your computer:

1. Start at MS-DOS and insert the DOS diskette supplied with the printer into the A drive.

2. Type ‘A:install’ and press the Enter key. The installer message is displayed.

Note: If you insert the floppy disk to the B drive, type ‘B:install.' Hit any key to display the DOS PRINTER PANEL Installer menu. The Install Directory menu is displayed. The factory default settings are shown.

Xerox DocuPrint XJ6C Printer

Control Panel Installer Source Drive A: Install Directory C:\Xerox\InkJet\ Exit Start Install

Make any necessary changes to the DOS PANEL Installer menu. To change any of this information, press the up and down arrow keys until the option you want to change is highlighted, then press the Enter key. Enter your new choice, then press the Enter key to exit the option.

3. If no change is made to the Install menu Press the Enter key to begin installation.

• If the Installer menu has been changed, use

the ¯ key until Start Installation is highlighted. Press the Enter key to begin installation. The directory of the name specified in the message will be created and the program on the disk will be copied in the specified directory.

• The files will be copied and a message will

appear that the installation has been successfully completed.

4. Press any key to return to the DOS prompt.

Note: The Installation ERROR message will be displayed if an error occurs during the installation. Press the ESC key to exit installation and return to the DOS prompt. If any other key is pressed, the screen returns to the Installer menu and the Install Directory will be highlighted. This error message generally occurs when the program on the floppy disk could not be copied to the specified drive and directory. Verify the directory name.

Refer to “Setting up the Printer for DOS” section for information on how to set up the printer.

Check if:

• directory name is too long → rename

• illegal characters are used → rename

• directory already exists → rename

6/98 General Procedures

XJ6C 6-3 GP 2

Product Specifications

Physical Characteristics

WIDTH 16.6 Inches (416 mm) DEPTH 11.3 Inches (289 mm) HEIGHT 7.6 Inches (193 mm) WEIGHT 11.2 Pounds (5.1 kg)

Electrical Requirements

107 - 125 VAC (USCO) 220/240 VAC ± 10% (RXL) POWER CONSUMPTION:

RUNNING 0.5A 110V POWER SAVER 0.1A 110V RUNNING 0.3A 230V POWER SAVER 0.08A 230V

Printer Capabilities

Type

Print Paper Size

Copy Paper Weights

Paper Tray Capacity

Output Tray Capacity

Throughput

Table 1. Printer capabilities

Desktop Ink Jet Printer (Portable) Minimum3.9" x 5.8" (100 mm x 149 mm)

Maximum 8.5" x 14" (216 mm x 356 mm) Paper: 16 to 24 lb. (60 - 90 gsm)

Paper: 24 to 36 lb. (91 - 135 gsm) Optimum paper: 20 lb. (75 gsm) Envelopes: 20 to 24 lb. (75 -90 gsm) Cards: 110 lb. MAX (110 - 200 gsm) 125 Sheets 20lb (75 gsm)

50 Sheets 20lb (75 gsm)

Black with High Capacity Printhead - 7 ppm Black with color Printhead - 5ppm Color with color Printhead - 2.5 ppm

General Procedures 6/98

Product Specifications 6-4 XJ6C

Supplemental Tools and Supplies

Tools USCO/ACO RXL

Cleaner 42E590 42E590 Formula A 43P48 8R90175 Lint Free

Tissues 35P2163 600S4372 Lens / Mirror

Cleaner 43H12 8R90178 Film Remover 43P45 8R90176 Towel 35P3191 8R90019 Lubricant 70P27 70P27

Supplies

Black Ink Printhead 8R7638 Color/Photo Ink Printhead 8R7871 Color Ink Cartridges

Black 8R7660 Cyan 8R7661 Magenta 8R7662 Yellow 8R7663

Printhead Storage box 60K01011

Print Drivers and Tour Guides

English (US)

Print Driver 300K75670

Brazilian Portuguese

Print Driver 300K75680

Latin American Spanish

Print Driver 300K75690

French

Print Driver 300K75490

German

Print Driver 300K75510

Italian

Print Driver 300K75500

Russian

Print Driver 300K75530

Related Information

User Guide (USCO) 701P97999 User Guide (ACO-Spanish) 701P98012 User Guide (ACO-Portuguese) 701P98014

Spanish Europe

Print Driver 300K75528

6/98 General Procedures

XJ6C 6-5 Supplemental Tools and Supplies

PAGE INTENTIONALLY BLANK

6/98

6-6 XJ6C

Printer Overview and Technical Overview Introduction

Printer Overview

• This section provides a brief overview of the DocuPrint XJ6C Printer. Also included are the operator activities that will help you to become familiar with the printer features. This section is divided into the following categories:

− Printer overview

− Printer operation

− Printer maintenance

Technical Overview

• This section provides a brief technical overview of the DocuPrint XJ6C Printer. This section is divided into the following categories:

− Power and Control

− Printing and priming

− Carriage Drive

− Paper Supply / Paper Feed

− Sensors and Status Indicators

6/98 General Procedures

XJ6C 6-7 Printer Overview / Technical Overview

Printer Overview

Printer Specifications

Read the "Printer specifications" information in the technical data section of the DocuPrint XJ6C User Guide. (The specifications are located in Chapter 8 of the user guide.)

Features and Operation

For detailed description of the following features and operation refer to the user guide.

Introduction/safety notes

Read the "Introduction," and the "Safety Notes" sections in the user guide.

Printer installation

Refer to the "Getting Started Checklist" section of the user guide for the following information and activities:

Read the information listed below in the user guide. If your printer is not installed, perform the steps indicated.

• "Selecting a location for your printer"

• "Unpacking the printer"

• "Removing the packing materials"

If your printer is already installed, familiarize yourself with the following information in the user guide.

• Read the "Printer part names" information. Refer to the illustrations and locate each part on the printer.

• Read the "Attaching the power cord” information. Attach the power cord.

Points to remember:

• The power cord must be disconnected from the wall outlet to completely shut off the power to the printer.

• Some or all of the lights on the control panel may come on and go off when you plug in the printer.

Printer Operation

Read the "Installing the Printhead and Ink Cartridges for the first time" information.

Install the Ink Cartridges into the Printhead if they are not installed. (If the Ink Cartridges are already installed, do not remove them) You will practice removing and reinstalling the Printhead later in this module.

Loading the paper

Read the “Loading paper“ information. Load several sheets of paper into the Paper Tray.

Be sure that the paper guide is correctly positioned to match the size of the paper being used.

Test print mode

Read the introduction of "Run a Demo Print" information. A host computer is not required to run the demo prints. A demo print should be run each time the printer is moved or when a Printhead or Ink Cartridge is replaced.

• Read the “Run a Demo Print“ information.

• Perform the Demo Print test.

Note: The test may be canceled by pressing the Power On / Reset button.

Connecting the printer to a computer

If a computer is available, read and perform the "Connecting the printer to the computer "information.

• Read the "Install the Windows Printer Driver and Tour Guide" information.

• Perform the “To Install on Windows 3.1®” or the “To Install on Windows 95®” printer driver

Control panel

Read the following information and locate the buttons and lights on the printer:

• Power On / Reset button

• Power On LED

• Cartridge Change / Clean button

• Error LED

• Low Ink LED(s)

You will have an opportunity to use these buttons and observe these lights later in this module.

Printing

Read the “Selecting Printer Options” information. Points to remember:

• The Paper Tray may be used for media such as plain paper, paper faced labels, transparencies, photo glossy, fabric transfer, or envelopes.

• Envelopes should not be placed on top of other print media. The envelope guide must be raised to position the envelopes.

General Procedures 6/98

Printer Overview / Technical Overview 6-8 XJ6C

Printer Maintenance

Cleaning

Briefly familiarize yourself with the “Cleaning the printer cover“ in the "Printhead Care" section of the user guide.

Points to remember

• Printer power should be turned off and the power cord should be unplugged before cleaning the printer.

• Use only water, not detergent or alcohol, to clean the printer. Be sure not to drop water inside the printer.

Replacing the Printhead

Read the “Replacing / Swapping the Printhead“ information in the "Printhead Care" section of the user guide.

Practice removing the Printhead by following the removal steps. Reinstall the Printhead by following the replacement steps.

Troubleshooting

Briefly familiarize yourself with the "Troubleshooting" section of the user guide.

Removal / Replacement of the printer components

Refer to the “Repair / Adjustment,“ section in this service manual (Section 4) and perform the following removal and replacement procedures:

• Printhead

• Paper Feed / Carriage assembly

• Main Cover assembly

• Top Cover assembly

To perform the exercises in the next section, Reinstall the Main Cover assembly.

Points to remember:

• The user should try all the steps before calling for service. The user should also be prepared to report a description of the problem accurately when calling for service.

6/98 General Procedures

XJ6C 6-9 Printer Overview / Technical Overview

Technical Overview

Power and control

The power and control functions provide electrical power from the wall receptacle to all the printer components. These functions also control the operation of all the electrical components during the print cycle.

This topic is divided into the following sections:

• Standby power

• Run control

Standby power

The purpose of standby power is to provide the printer with AC power and low voltage DC power. Figure 1 shows the standby power components.

When the power cord is plugged into the power receptacle, ACH (AC High) and ACN (AC Neutral) are sent to the Low Voltage Power Supply (LVPS).

The LVPS converts the AC voltage to +42 VDC and +5 VDC. The +42 VDC is used by the Main PWB and the motors in the printer. The +5 VDC is used by the Main PWB and other components in the printer.

The Power On/Reset switch does not remove DC power from the printer. It merely enables and disables the printer operation.

Figure 1 shows the location of the LVPS.  Locate the LVPS in the printer.

Run control functions

The run control components perform the following principle functions:

• Monitor the input signals during standby.

• Provide the output signals to switch the

printer components on and off at the correct time during the print cycle.

• Monitor the input signals to detect a printer malfunction during the print cycle.

Main PWB

The Main PWB is the principal printer control component. The Main PWB contains the control logic, which sends signals that are preprogrammed to synchronize the mechanical drive systems and the electrical functions that control the printer. Figure 2 shows the location of the Main PWB.

 Locate the Main PWB in the printer.

Main PWB

LVPS

0400161A-LAT

Figure 1. LVPS

0400171A-LAT

Figure 2. Main PWB

General Procedures 6/98

Printer Overview / Technical Overview 6-10 XJ6C

Control console

The Control Console on the front of the printer contains the pushbuttons, which allow the user to operate the printer, and indicators, which show the user the status of the printer.

The Control Console PWB, located behind the front of the Main Cover, is connected to the Main PWB by a ribbon cable.

When the operator selects a mode, the Control Console PWB sends a signal to the Main PWB. The Main PWB interprets the signal and provides a signal to switch on the corresponding LEDs on the console, which indicates the current mode and the printer status.

 Locate the Control Console PWB on the

printer.

Bi-Directional Cable

The Printer is connected to the PC via a parallel cable. If a unidirectional cable is used, only basic Printer status information is transmitted to the PC. In order to achieve the best results from the DocuPrint XJ6C printer, a Bi-directional cable must be used. A Bi-directional cable provides for complete two way communications between the Printer and the PC. Printer Status (Ready, Not Ready, Printhead and Ink levels) and error signals are communicated to the PC via the cable.

Printing and priming

The purpose of the printing subsystem is to supply and deliver ink for the printing process.

This topic is divided into the following sections:

• Printing

• Print Control

• Cleaning and Priming

Printing

The Printhead, located on the Carriage, contains

paper. The Printhead, Ink Cartridges, and the nozzles are shown in Figure 3.

Printhead

Nozzles

Ink Cartridges

Figure 3. Printhead, Ink Cartridges, and

the nozzles

the nozzles and the Ink Cartridges. The black Printhead has a single row of 128 microscopic nozzles. The color Printhead has 120 nozzles, evenly divided for each of the four colors. Ink is ejected from the nozzles to form an image on the

6/98 General Procedures

XJ6C 6-11 Printer Overview / Technical Overview

Note: Be sure not to touch the exposed nozzles.

 Locate the following components on your

printer:

• Printhead

• Ink Cartridge(s)

• Nozzles

General Procedures 6/98

Printer Overview / Technical Overview 6-12 XJ6C

Cleaning and Priming

A microheater is located inside each nozzle. Current is applied to the microheater, which heats the ink inside the nozzle. As the ink heats, a bubble forms, as shown in Figure 4. The pressure from the expanding bubble ejects the ink from the nozzle. After the ink has been ejected from the nozzle, the current is turned off. When the ink cools, the bubble disappears, and the nozzle fills with ink again.

Ink

Bubble

Ink

Microheater

Figure 4. Ink ejection from the nozzle

The cleaning and priming functions are used to clean the Ink Cartridges and the nozzles in order to maintain optimum print quality. When the Cartridge Change / Clean button is pressed, the ink that is clogging the nozzles is ejected and removed by the cleaning components. Also, when an Ink Cartridge is replaced and the button is pressed, the priming function takes place automatically. The cleaning and priming components are shown in Figure 5. When the Cartridge Change / Clean button is pressed, the Carriage and the Printhead move to the right into position for Printhead removal and replacement.

Pump

Maintenance Station

When the button is pressed again, the Carriage and Printhead move to the left into to the parked position. At the same time the waste ink tube is clamped by the pinch arm on the Maintenance Station and temporarily restricted. As the paper feed motor rotates, it actuates the pump. The pump action creates a small vacuum on the blocked tube. This creates suction that pulls ink from the Printhead. The waste ink tube moves the ink to the waste ink pad located in the printer base.

The pump is actuated whenever the Paper Feed Motor rotates, creating flow from the Printhead to the pump.

Ink Cartridge

Tube

Print control

The print control logic in the Main PWB sends the print signals to the Ink Cartridge control logic in the Ink Cartridge through a ribbon cable. The ink control logic then turns on the microheaters to eject the ink from the appropriate nozzles. This forms the characters or the graphics as the Carriage scans. The power and ground signals are also sent to the Ink Cartridge. An enable signal is sent from the cartridge to inform the Main PWB that a cartridge is present.

Paper Feed Motor

Waste Ink Pad

Figure 5. The cleaning and priming components

6/98 General Procedures

XJ6C 6-13 Printer Overview / Technical Overview

Printhead

Cam

Vacuum Head

To prevent excessive ink use, the Printhead is moved from the maintenance station whenever the paper feed motor is on (except during priming).

 Ink that remains on the nozzles is removed by

the wiper, shown in Figure 6.

 Locate the following components on your

printer:

• Maintenance station

• Pump

• Tubes

• Wipers

Wiper

Figure 6. The Maintenance Station

Tube

Ink Level Sensing

The Ink Level Sensor measures for a color printhead being present, low, and out of ink conditions. Two angled reflective surfaces are molded into each cartridge. The Ink Level Sensor contains two emitters (ink cartridge present and ink level) and a shared detector.

Cartridge

Ink Ink level emitter

Figure 7. Ink Sensing

Present emitter

Detector

the printer will display a cartridge missing error condition.

Low Ink Detection: The Ink Level Sensor scans the cartridge ink levels. The sensors level emitter is energized and signals for each cartridge are checked by the shared detector. Infrared light from the emitter is absorbed by the ink in the rear reservoir. If the rear reservoir is empty, the reflective surfaces return a low signal. The printer will display a low ink condition, warning the user that the cartridge will soon be empty.with approximately 10% of the usable ink remaining.

Out of Ink Detection: As printing continues, after the low ink condition is detected, the number of drops printed is reduced by a NVM counter. This value is communicated to the printer status display via a bi-directional parallel cable and is reflected in the ink level “Gas Gauge “ on the users PC screen. This low ink counter is reset to full, when the “not low” to low state change is first detected. Once the counter has reached zero, the printer status screen will display an out of ink error condition. The user must then replace the empty ink cartridge to continue printing. After the user performs a Cartridge change in the printer, the cartridge levels are scanned and the state change is detected by the Ink Level sensor. The state changes from low ink to not low and resets the counters in NVM and clears the out of ink error.

Ink Cartridge Present

As the carriage is moved, the Ink Level Sensor scans the printheads four color cartridges. The Ink Sensors ink cartridge present emitter is energized and its beam reflects off both surfaces and returns to the shared detector (See Figure

7.). If an ink cartridge is not present, or is incorrectly installed, no beam will be reflected and

General Procedures 6/98

Printer Overview / Technical Overview 6-14 XJ6C

Carriage Drive

The purpose of the Carriage subsystem is to position the Printhead for the printing process.

This topic is divided into the following sections:

• Carriage drive

• Encoder

Carriage drive

The Carriage Motor, MOT1, is a stepper motor that is controlled by the Main PWB.

The motor moves the Carriage from right to left and left to right on the Carriage shaft via the Carriage belt and pulleys. The pulleys are mounted on the Encoder (discussed later in this module) and the Carriage Motor. A spring on the Encoder prevents slack in the Carriage belt.

The Carriage Home Sensor, detects the Carriage at the home position. The sensor is mounted on the underside of the Carriage. At power on, or after an error has been cleared, the Carriage moves to the right and then to the left. When the Carriage moves to the home position, the Home Sensor detects the Carriage home plate, which is located on the Encoder plate, and a home position detection signal is sent to the Main PWB. The Carriage drive components are shown in Figure 7.

Carriage Home Plate

Encoder

Carriage Home Sensor

(underside)

Figure 7. Carriage drive components

 Locate the following components on the

printer:

• Carriage

• Carriage Home Sensor

• Carriage Shaft

• Carriage belt and pulleys

Carriage

Carriage Shaft

Carriage Motor, MOT1

6/98 General Procedures

XJ6C 6-15 Printer Overview / Technical Overview

Carriage movement at power on

disk

The Carriage movement sequence at power on is described below:

1. The Carriage moves to the right to activate the Carriage Home Sensor. This action also wipes the ink nozzles.

2. The Paper Feed Motor turns on and rotates the cam gear to move the Paper Tray up and down. This prepares the first sheet of paper to feed into the printer.

3. The Carriage moves to the right about three inches. The Carriage stops for approximately one second. Then the Carriage increments to the left, where the ink level in the Ink Cartridges is monitored by the Ink Level Sensor. The Carriage then returns to the home position.

Pulley

Encoder

Photosensor

Carriage motor

4. A page is printed and ejected into the Paper Output Shelf. When print data is received, the Carriage moves to the right, the Paper Feed Motor turns on, and the paper is fed to the printing position.

5. The process is repeated for additional pages.

6. When the printing is finished, the Carriage returns to the home position.

General Procedures 6/98

 Switch off the printer power. Switch on the

printer power and observe the Carriage movement described in steps 1 through 3 above.

 Refer to steps 1 through 5 in the “Replacing /

Swapping the Printhead“ section of the user guide and remove the Printhead. (Do not discard the Printhead.) Be careful not to touch the uncovered nozzles or nozzle area.

 Refer to the “Replacing/Swapping the

Printhead“ section of the user guide and reinstall the Printhead.

Figure 8. Encoder

Encoder

The Encoder, shown in Figure 8, tracks the Carriage position. The Encoder contains a disk that has 480 radial lines. The disk is mounted on the same shaft as the Encoder pulley that is moved by the Carriage belt. (See “Carriage drive“ information in this module.) The photosensor detects each radial line and sends a reference signal to the Main PWB for each 1/300 of an inch of Carriage movement from the home position. The Main PWB uses this signal to position the Carriage.

Printer Overview / Technical Overview 6-16 XJ6C

 Locate the following components on your

printer:

• Encoder

• Carriage motor

Status code

Error Lamp On (steadily) -- The Main PWB monitors the Encoder signal by comparing the current Carriage position to the expected Carriage position. If the Carriage is not at the expected position, the error lamp will illuminate.

6/98 General Procedures

XJ6C 6-17 Printer Overview / Technical Overview

Paper Supply / Paper Feed

The purpose of the paper supply and paper feed subsystem is to store, transport and eject the paper from the printer.

This Topic is divided into the following sections:

• Paper supply

• Paper feed

• Load/Eject mechanism

Paper Supply

For multisheet feeding, paper is supplied to the printer via the Paper Tray. The Paper Tray holds up to 125 sheets of paper 20LB. (See Table 1. Printer Capabilities). Paper guide in the Paper Tray are adjusted to match the size of the paper. Envelopes and cards can be inserted into the Paper Tray for printing by flipping the envelope guide to match the size of the envelopes. Extremely thin paper and chemically processed paper, such as thermal paper, should be avoided as they may result in paper misfeeds.

Paper feed

The paper feed assembly feeds and ejects the paper. The rotational force of the Paper Feed Motor, MOT 2, drives the loading and paper feed mechanisms for registering, feeding and ejecting the paper. Each of these functions is controlled independently by changing the direction of the motor rotation.

Load and eject mechanism

The Paper Feed Motor, MOT 2, when turning in the clockwise direction rotates the paper loading gears and the cam. These gears and cam operate at power up. The cam gear also rotates when paper is loaded (before it is fed). When the cam rotates, the bottom of the Paper Tray moves in and out to position the paper stack in the tray. At the same time the retard pad is energized and moves into the path to prevent more than one sheet of paper being fed at a time. The Retard pad is retracted after the lead edge of the sheet reaches the Paper Feed Switch, SW1.

When the motor rotates in the counterclockwise direction, the paper feed gears, paper feed and exit rolls turn. Paper is fed by the paper feed roller until it is in position for the Printhead to begin placing ink on the paper. At the end of the job, the paper is pressed against the exit roller by the starwheels in the exit guide and is ejected into the paper output shelf. Signals from the Main PWB control the incremental movement of the Paper Feed Motor and the Carriage Motor. This control of the Paper Feed Motor and Carriage Motor allows for precise placement of the ink on the paper.

 Locate the following components on your

printer:

• Paper Feed Motor

• Cam

• Paper Tray

 Run the Demo Print. Observe the

operation of the Paper Tray and the Paper Feed mechanism during the print cycle.

6/98 General Procedures

XJ6C 6-18 Printer Overview / Technical Overview

Sensors and status indicators

Sensors

The Paper Feed Switch, SW1, detects the presence of the paper and sends a signal to the Main PWB. This signal is used as a reference for the top margin. If the top margin is not detected, no signal is sent to the Main PWB. If the top margin is not detected, the error lamp will light, indicating there is no paper in the Paper Tray. The Paper Feed Switch is shown in Figure 9.

The Cam Sensor, Q1, is located on the cam shaft. The sensor detects the movement of the cam shaft during the power on cycle and sends a cam sensor signal to the Main PWB. The Main PWB uses this signal to control the Paper Feed Motor during the paper loading cycle. The Cam Sensor is shown in Figure

Status indicators

Error LED on (steady). The error LED comes on when the sensor does not detect the cam rotating (Paper Feed Motor is not on).

 Locate the Paper Feed Switch and the

Cam Sensor on the printer:

Cam Sensor

Paper Feed Switch

Figure 9. Paper Feed Switch and Cam Sensor

6/98 General Procedures

XJ6C 6-19 Printer Overview / Technical Overview

Section Contents

Title Page

Plug / Jack Location Index ............................7-2

Plug / Jack Location Drawings.......................7-3

Block Schematic Diagrams (BSDs)............... 7-7

7. Wiring Data

6/98 Wiring Data

XJ6C 7-1 Section Contents

Plug / Jack Location Index

P/J NO. LOCATION FIG.

CN1 On Main PWB................................7-1

CN1 On LVPS........................................7-1

CN2 On Main PWB

to Control Console PWB................7-1

CN2 On LVPS........................................7-1

CN4 On Main PWB................................7-1

J1 On Distribution PWB

to Main PWB .................................7-2

J2 On Distribution PWB to

Low Ink Sensor Q2......................... 7-2

J3 On Distribution PWB to

Paper Feed Switch SW1................7-2

J4 On Distribution PWB to P/J9..........7-2

J5 On Distribution PWB to

Carriage Motor MOT1....................7-2

J6 On Distribution PWB to

Paper Feed Motor MOT2 ............... 7-2

J7 On Distribution PWB to

Cam Sensor Q1.............................7-2

J9 On Encoder Assembly ..................7-2

J10 On Low Ink sensor Q2.................... 7-4

J11 On Carriage ..................................7-3

J12 On Carriage...................................7-3

Wiring Data 6/98

Plug / Jack Location Index 7-2 XJ6C

Plug / Jack Location Drawings

U23

U10

U26 U27

MAIN PWB

CN-1

CN2

LVPS PWB

CN1

CN3

CN4CN2

12 34

Figure 7-1. Main PWB and LVPS

6/98 Wiring Data

XJ6C 7-3 Plug / Jack Location Drawings

(Encoder)

J4 (To Encoder)

J2 (To Low Ink Sensor)

J6 (To Paper Feed Motor MOT2)

J7 (To Cam Sensor Q1)

J5 (To Carriage

Motor MOT1)

(To Main PWB)

J3 (To Paper Feed Switch SW1

040022A-LAT0

Figure 7-2. Carriage Assembly (Bottom View)

Wiring Data 6/98

Plug / Jack Location Index 7-4 XJ6C

J12

Figure 7-3. Carriage

J11 (Under Carriage)

J10

0400153A-LAT

Figure 7-4. Front View

6/98 Wiring Data

XJ6C 7-5 Plug / Jack Locational Drawings

PAGE INTENTIONALLY BLANK

Wiring Data 6/98

Plug / Jack Location Index 7-6 XJ6C

Block Schematic Diagrams (BSDs)

A B C D E F G H J

1.1 AC/DC Power Generation

LVPS PL 1.1

CN1

ACH

NEUTRAL

GROUND

BLK

WHT

FUSE

3.15A

DC POWER

GENERATION

+41.

VDC

NOISE FILTER

CN2

CN1

MAIN PWB PL 1.1

+41.7 VDC

+5 VDC

CN2

GRY

RIBBON

CABLE

CN-3

30 30

CN2

RED

RELAY PWB PL

Control Console PWB

Encoder Assembly

Ink Level

Paper Feed Switch

Tray Cam Sensor

Ink Level

Encoder Assembly

Control Console PWB

VDC

GND

CN4

7 13 163 4

Notes:

= 115 VAC = 220/240 VAC

PRINTHEAD RIBBON

CABLE PL 2.1

CARRIAGE

3 4

7 13 16

GND

STANDBY POWER

CHAIN 1 LEVEL

SHEET 1 OF

LAT-1000

6/98 Wiring Data

XJ6C 7-7 Chain 1 AC/DC Power Generation

PAGE INTENTIONALLY BLANK

Wiring Data 6/98

Plug / Jack Location Index 7-8 XJ6C

A B C D E F G H J

2.1 MODE SELECTION AND INDICATION

MAIN PWB PL 1.1

GND

CONTROL

LOGIC

CONTROL CONSOLE PL 1.1

GND

+5 VDC

CN2

CARTRIDGE CHANGE / CLEAN ACTUATED (L) +5VDC

GND

RED

PWR ON LED (H) +5VDC

GRY

ERROR LED (H) +5VDC

GRY

RESUME / FF ACTUATED (L) +5VDC

POWER / RESET ACTUATED (L) +5VDC

MAGENTA INK LED (H) +5VDC

YELLOW INK LED (H) +5VDC

GRY

GRN

+5 VDC

GRY

BLACK INK LED (H) +5VDC

GRY

CYAN INK LED (H) +5VDC

GRY

GRN

+5 VDC

Change/Clean

Black

Resume/FF

Power On /

Cartridge

Power On

Error

Reset

GND

Cyan

+5 VDC

Magenta

Yellow

MODE SELECTION

CHAIN 2 LEVEL 2

SHEET 1 OF 1

LAT-1001

3/97 Wiring Data

XJ6C 7-9 Chain 2 Selection and Indication

A B C D E F G H J

3.1 Centronics 8-Bit Parallel Interface

MAIN PWB

PL 1.1

CONTROL

LOGIC

SIGNAL DESCRIPTIONS ARE AS

NOTES:

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

STROBE

DATA 1 DATA 2 DATA 3 DATA 4 DATA 5 DATA 6 DATA 7 DATA 8

ACK

BUSY

SELECT NOT USED NOT USED

SIGNAL GND FRAME GND

+5 VDC SIGNAL GND SIGNAL GND SIGNAL GND SIGNAL GND SIGNAL GND SIGNAL GND SIGNAL GND SIGNAL GND SIGNAL GND SIGNAL GND SIGNAL GND SIGNAL GND

PRIME

ERROR

NOT USED NOT USED NOT USED NOT USED

STROBE Data strobe signal with negative logic sent from the

DATA 1- DATA 8 Input signals with positive logic corresponding to each

ACK Pulse signal to acknowledge input of data. BUSY Output signal to inform the host computer that the

PE Output signal to inform the host computer that the

SELECT Output signal indicating that the printer is in the on line

SIGNAL GND Reference ground for logic signals. FRAME GND Safety frame ground. +5 VDC +5 VDC signal sent to the host computer. PRIME Pulse signal to initialize and return the printer to its

ERROR Conditions under which the signal level becomes low

FOLLOWS:

host computer for reading data.

bit of data.

printer cannot receive data (Busy) (Positive Logic).

printer is in the paper empty state (Positive Logic) or a paper jam has occured.

or off line state (Positive Logic).

power on state.

(Error) are as follows:

• Paper empty

• Paper jam error

• Carriage position error

• Paper mechanism initial error

• RAM check error

MACHINE RUN CONTROL

CHAIN 3 LEVEL 2

SHEET 1 OF 1

CAT-1002

Wiring Data 3/97

Chain 3 Machine Run Control 7-10 XJ6C

6.1 Carriage Drive

MAIN PWB PL1.1

A B C D E F G H J

PRINTHEAD

RIBBON

CABLE

CN4

PL 2.1

CARRIAGE PL 2.1

CARRIAGE HOME SENSOR

16 12

PRINTHEAD

RIBBON

CABLE

PL 2.1

Carriage Home Sensed (H) +5 VDC

CN4

MAIN PWB PL 1.1

+42 VDC

CONTROL

LOGIC

RIBBON

CABLE

CN3

23 24 25

26 27 28

+5 VDC

GND

7 7 4

+5 VDC

P/J1

RELAY PWB PL 2.1

23 24 25

26 27 28

Led On (H)) +1.2 VDC

N/C

CARRIAGE

P/J5

1 2 3

4 5 6 7

P/J4

GRY

GRN

GRY

+42 VDC +42 VDC

Carriage Step 0 Signal

Carriage Step 1 Signal Carriage Step 2 Signal Carriage Step 3 Signal

ENCODER ASSEMBLY PL 2.1

P/J9

Carriage Position Signal

RED RED BRN

YEL BLK ORN

MOTOR MOT1

MOT 1

ENCODER CIRCUIT

+5 VDC

Carriage

Encoder Assembly

Carriage Motor MOT1

NOTES:

WHEN THE CARRIAGE IS NOT MOVING,

THE VOLTAGE IS EITHER +5 VDC OR 0 VDC. WHEN THE CARRIAGE IS MOVING, THE VOLTAGE IS APPROXIMATELY 2.6 VDC.

CARRIAGE DRIVE

CHAIN 6 LEVEL 2

SHEET 1 OF 1

LAT-1003

6/98 Wiring Data

XJ6C 7-11 Chain 8 Paper Feed

A B C D E F G H J

8.1 Paper Feed

MAIN PWB PL 1.1

CONTROL

LOGIC

+5 VDC

RIBBON

CABLE

CN3

P/J1

RELAY PWB PL2.1

P/J7

LED On (H) +1.2 VDC

WHT

CAM SENSOR Q1

Cam Sensed (L) +5 VDC

+5 VDC

+42 VDC

Paper Sensed (H) +5VDC

WHT

BLK

15 16 17

18 19 20

15 16 17

18 19 20

1 2 3

4 5 6

P/J3

P/J6

BLK

RED

PAPER FEED SWITCH SW1 PL2.1

+42 VDC +42 VDC

Paper Feed Step 0 Signal

Paper Feed Step 1 Signal Paper Feed Step 2 Signal

Paper Feed Step 3 Signal

RED RED BRN

YEL

BLK

ORN

PAPER FEED MOT2

MOT 2

Paper Feed

Switch SW1

Cam

Sensor

Paper Feed

Motor MOT2

040022A-LAT

PAPER FEED

CHAIN 8 LEVEL 2

SHEET 1 OF 1

LAT-1004

Wiring Data 6/98

Chain 8 Paper Feed 7-12 XJ6C

PAGE INTENTIONALLY BLANK

6/98 Wiring Data

XJ6C 7-13 Chain 8 Paper Feed

A B C D E F G H J

9.1 Print Control

INK LEVEL SENSOR PL 2.1

MAIN PWB PL 1.1

RELAY PWB PL2.1

RIBBON

INK LEVEL SENSING CIRCUIT

GND

+5 VDC +5 VDC

Low Ink

J10J10

Sensed

GRY

P/J2 CN3J1

CABLE

+5 VDC

CONTROL

LOGIC

PRINTHEAD RIBBON

CABLE PL 2.1

CN4

CARRIAGE PL 2.1

J12

INK CARTRIDGE PL 2.2

INK HEAD CONTROL LOGIC

INK HEAD NOZZLES

GRY

VIO

J12

GRY

J11 (Under Carriage)

Carriage

PRINT CONTROL CHAIN 9LEVEL 2

SHEET 1 OF

LAT-1005

Wiring Data 6/98

Chain 9 Print Control 7-14 XJ6C

Xerox XJ6C Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1. Service Call Procedures

3. Image Quality

4. Repairs / Adjustments

5. Parts List

6. General Procedures

7. Wiring Data