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Lexmark X543 X544 series 7525-xxx

Tags : LexmarkX543-X544series7525-xxx12G9825X543dn7525-1317525-1337525-138X544n7525-3567525-352X544dn7525-3367525-3327525-3377525-333X544dw7525-3867525-3827525-3877525-383X544dtn7525-3367525-3327525-3377525-333 
Lexmark X543 X544 series 7525-xxx Manuel de service

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Description

Lexmark  X543 - X544 series 7525-xxx Service Manual (12G9825)
Edition: January 9, 2009

The Lexmark X54x series MFPs are available in the following models:
Model Configuration Machine type / model
X543dn 7525-131 7525-133 7525-138
X544n 7525-356 7525-352
X544dn 7525-336 7525-332 7525-337 7525-333
X544dw 7525-386 7525-382 7525-387 7525-383
X544dtn 7525-336 7525-332 7525-337 7525-333


Table of contents . iii
Notices and safety information . xi
Laser notice . xi
Lithium warning.  xvii
Safety information. xvii
Preface xxi
Conventions. .  . xxi
General information . .  1-1
Models .  1-1
Options and features . .  1-2
Memory 1-2
Print quality 1-3
Connectivity (network support) 1-3
Operating modes . 1-4
Data streams 1-4
Dimensions . .1-5
Clearances 1-5
Power and electrical specifications . 1-6
Acoustics . 1-7
Environment specifications . 1-7
Media handling 1-8
Input and output sources . 1-8
Duplex capability 1-8
Media input size specifications 1-9
Media input type specifications . 1-10
Media output size and type . 1-11
Media guidelines . 1-13
Paper characteristics . 1-13
Unacceptable paper . 1-13
Selecting paper . 1-14
Selecting preprinted forms and letterhead 1-14
Storing paper . 1-14
Using recycled paper and other office papers 1-14
Digital imaging specifications . .  1-16
General specifications 1-16
ADF Scan speed 1-16
ADF Document handling 1-16
Resolution and color depth 1-16
Flatbed document specifications 1-16
Flatbed speed 1-16
Scanner operating environments . 1-16
Storage environments 1-16
Tilt . 1-16
Scan and copy specific specifications . 1-17
Scan Resolutions . 1-17
Output resolutions . 1-17
Duplex scan . 1-17
Scan file output formats 1-17
Supported compressions . 1-17
Supported scan destinations . 1-17
Multiple copies . 1-17
Reduce / Enlarge . 1-17
Fax specifications . .1-18
Phone network connectivity . .1-18
Fax resolutions . .1-18
Miscellaneous FAX specifications .1-18
Tools required for service . .1-19
Acronyms.1-20
Diagnostic information2-1
Start . .2-1
POR (Power-On Reset) sequence . .2-2
Symptom tables .2-3
Printer symptom table . .2-3
Scan / fax / copy symptom table . .2-4
Print quality symptom table . .2-5
Error codes and messages .2-6
User status and attendance messages . ..2-6
Paper Jam messages . .2-12
Service error messages .  .2-14
Fax error log codes . .2-28
Service checks . .2-32
Autocompensator mechanism service check . .2-32
90x.xx error . .2-32
. .2-32
920.xx–923.xx—Fuser temperature incorrect . .2-32
925.01—Fan error service check .2-33
930.xx–935.xx—Printhead errors service check . .2-34
936.xx, 937.xx—Transport motor service check . .2-34
950.xx EPROM mismatch failure service check . .  .2-35
Autocompensator mechanism service check . .2-35
Bin full sensor service check .2-36
Dead printer service check .2-37
Duplex/manual feed sensor (S1) service check .2-38
Front door sensor or switches service check . .2-39
Fuser exit sensor service check .2-40
Fuser service check . .  .2-41
Input sensor (S2) service check .2-42
Main drive gear assembly (EP drive) service check .2-43
Operator panel service check .2-44
One or more operator panel buttons fail .2-44
Operator panel display blank, five beeps . .2-44
Operator panel display blank, printer beeps five times and pauses . .2-45
Operator panel displays all diamonds, no beeps . .2-46
Operator panel displays all diamonds, five beeps .2-46
Operator panel display is dim and unchanging .2-47
Op panel USB cable service check .2-47
USB service check .  .2-47
Networking service check . .2-48
Print quality service check . .2-50
Print quality—background .2-51
Print quality—blank page . .2-52
Print quality—blurred or fuzzy print . .2-54
Print quality—half-color page .2-54
Print quality—horizontal banding . .2-54
Print quality—horizontal line . .2-55
Print quality—insufficient fusing .2-55
Print quality—missing image at edge .2-55
Print quality—mottle (2–5mm speckles) .2-55
Print quality—narrow vertical line . .2-56
Print quality—random marks .2-56
Print quality—residual image 2-57
Print quality—solid color page 2-58
Print quality—vertical banding 2-58
Printhead service check . 2-59
Toner meter cycle (TMC) card 2-60
Toner sensors (Y, C, M, K) on TMC card 2-60
Transfer roll service check . 2-61
Tray 1 sensor service check 2-62
840.xx service check 2-63
Black or blank page copy service check 2-65
CCD service check .2-65
Flatbed motor service check . 2-65
Flatbed home position service check 2-66
ADF cover open service check . .2-67
ADF streak service check 2-67
ADF paper jam service check .  2-68
ADF feed errors service check . .  2-69
ADF Duplex service check . 2-69
Modem / fax card service check .  2-70
Fax transmission service check .  2-71
Fax reception service check . .  2-73
Escalating a fax issue to second-level support 2-75
User operator panel, menus and messages 2-76
Understanding the operator panel . 2-76
Operator panel buttons 2-76
. .  2-77
Menu map .  2-78
Diagnostic aids 3-1
Menu key combinations. 3-1
Diagnostics Menu (Diag Menu) 3-2
Diagnostics menu structure . 3-2
Available tests 3-2
Registration 3-4
Printer . 3-4
Skew 3-5
Quick test 3-6
Alignment . 3-7
Factory Scanner 3-10
Factory Manual . 3-10
Miscellaneous Tests 3-10
Motor Detect . 3-10
Print Tests 3-11
Input source tests . 3-11
Print quality test pages (Prt Quality Pgs) . 3-11
Hardware Tests .3-13
Panel Test . 3-13
Button Test 3-13
DRAM Test 3-13
CACHE Test . 3-14
Duplex Tests 3-15
Quick Test (duplex) 3-15
Left Margin (duplex) . 3-15
Top Margin (duplex) . 3-16
Sensor Test (duplex) . 3-16
Input Tray tests 3-17
Feed Tests 3-17
Sensor Test 3-17
Base Sensor Test . .3-18
Device Tests . ..3-18
Flash Test . .3-18
Printer Setup . ..3-19
Defaults .3-19
Page Counts . .3-19
Serial Number . .3-19
Model Name . .3-19
Configuration ID .3-19
ITU Barcode . .3-20
Enable Edge to Edge Copy . .3-20
Reset Fuser Count .3-21
EP Setup .3-21
EP Defaults . .3-21
Fuser Temp . .3-21
DC Charge Adjust, Deve Bias Adj, Transfer Adj . .3-21
TPS Setup .3-22
Right or Left TPS . .3-22
Reset Color Cal .3-22
Cal Ref Adj .3-22
Reports . .3-22
Main Settings Page . .3-22
Event Log .3-23
Display Log .3-23
Print Log .3-23
Clear Log . .3-24
Scanner Tests .3-25
ASIC Test . .3-25
Feed Test . .3-25
Sensor Test . .3-25
EXIT Diags . .3-30
Configuration Menu .  .3-31
Available tests ..3-31
USB Scan to Local . .3-31
Prt Quality Pages . ..3-31
Color Trapping .3-32
Reports . ..3-32
Menu Settings Page . .3-32
Event Log . .3-32
Panel Menus .3-32
PPDS Emulation ..3-32
Demo Mode ..3-33
Factory defaults . .3-33
Energy Conserve .3-33
Min Copy Memory . ..3-34
Format Fax Storage . ..3-34
Auto Color Adj . .3-34
ADF Edge Erase .3-34
FB Edge Erase . ..3-35
Scanner Manual Registration .3-35
To manually register a Duplex ADF, perform the following steps: .3-35
To manually register the flatbed, perform the following steps: . .3-36
Disable Scanner ..3-36
Font Sharpening . .3-37
Pel Blurring . .3-37
Exit Config Menu ..3-37
SE Menu .3-38
Print SE Menus .3-38
General . .3-38
Code Revision Info .3-38
History 3-38
MAC . 3-38
NVRAM . 3-38
NPAP 3-38
TCP/IP 3-38
Paper jams 3-39
Avoiding jams . 3-39
Understanding jam numbers and locations . 3-40
200 paper jams . 3-41
201 paper jam 3-41
202 paper jam 3-42
230 paper jam 3-43
235 paper jam 3-43
24x paper jam 3-43
250 paper jam 3-43
29x ADF paper jam 3-44
291.xx ADF paper jams . 3-45
Theory of operation .3-46
Print engine theory . 3-46
Electrophotographic Process (EP Process) . 3-46
MFP electrophotographic process basics . 3-46
Step 1: Charge . 3-47
Step 2: Expose . 3-48
Step 3: Develop . 3-49
Step 4a: First transfer 3-50
Step 4b: Second transfer . 3-51
Step 5: Fuse . 3-52
Step 6: Clean/Erase . 3-53
Paper path, transport components 3-55
Paper path Information . 3-55
Transport components . 3-56
Duplexing (models with duplex support only) 3-56
Scanner theory 3-58
Duplex ADF 3-58
Color theory .3-60
What is RGB color? 3-60
What is CMYK color? 3-60
How is color specified in a document to be printed? . 3-60
How does the printer know what color to print? 3-60
Should I use PostScript or PCL emulation? What settings produce the best color? . 3-60
Why doesn't the printed color match the color I see on the computer screen? 3-60
The printed page appears tinted. Can I adjust the color? . 3-60
My color transparencies seem dark when they are projected. Is there anything I can do to improve the color? 3-61
What is manual color correction? . 3-61
How can I match a particular color (such as a corporate logo)? 3-62
What are detailed Color Samples and how do I access them? . 3-62
Repair information4-1
Handling ESD-sensitive parts . .  . 4-1
Testing generic FRUs 4-1
Removal procedures .4-2
Print engine removal procedures . 4-2
Front cover assembly removal . 4-2
Front middle cover removal . 4-4
Left cover removal . 4-4
Right cover removal . 4-7
Rear shield removal . 4-7
AIO back cable cover removal . 4-8
Top cover assembly removal . .4-9
Installation .4-11
Autocompensator mechanism (ACM)—standard tray removal . .4-12
Bin full sensor .4-15
Controller board removal .4-16
Duplex sensor removal . .4-17
Fuser assembly removal .4-19
Fuser drive motor assembly removal .4-22
Fuser exit sensor removal . .4-23
High-voltage power supply (HVPS) assembly removal .4-24
Image transfer unit (ITU) .4-26
Imaging unit (IU) removal .4-28
Developer unit removal . .4-30
Low-voltage power supply (LVPS) assembly .4-31
Lower frame removal, right and left . .4-33
Left lower frame .4-33
Right lower frame . .4-35
Main drive gear assembly with motor removal .4-39
Pick tires removal—integrated 250-sheet media tray . .4-41
Printhead removal ..4-42
Imaging unit contacts . ..4-43
Toner meter cycle (TMC) card removal . .4-45
Toner patch sensor (TPS)—left and right removal . .4-47
Tray present sensor removal ..4-48
USB connector removal . ..4-49
Waste toner bottle ..4-49
Wireless network antenna . .4-50
Wireless network card ..4-52
Scanner component removal procedures . ..4-53
Flatbed removal . .4-53
Preparing and installing re new flatbed .4-59
Duplex ADF rear cover .4-62
Duplex ADF removal ..4-63
Simplex ADF rear cover . .4-64
Simplex ADF removal . .4-64
ADF input tray . ..4-64
ADF cable ..4-65
ADF separator pad . ..4-66
ADF separator roll assembly . .4-67
Bezel cover ..4-68
Redrive unit ..4-70
Cover scanner left ..4-71
Cover scanner right .4-72
AIO release lever .4-74
AIO link .4-75
AIO toner cover ..4-76
Operator panel removal . .4-77
Op panel bezel removal . .4-79
Op panel cable .4-80
Logo cover ..4-80
Fax card removal .4-81
Fax interface cable .4-81
Output bin tray .4-82
Bin full flag removal .4-82
Locations 5-1
Exterior views . ..5-1
Front .5-1
Rear .5-2
Interior view 5-3
Printer boards 5-4
Controller Board . 5-4
Connectors . 5-5
HVPS . .  5-15
Connectors 5-16
LVPS 5-17
Connectors 5-18
Toner meter card 5-19
Toner meter card connectors 5-19
Wireless card 5-20
Connectors 5-20
Preventive maintenance. 6-1
Safety inspection guide . .6-1
Lubrication specifications 6-1
Parts catalog . .7-1
How to use this parts catalog 7-1
Assembly 1: Covers . 7-2
Assembly 2: Scanner 7-4
Assembly 3: Paperpath . 7-8
Assembly 4: Electronics 1 . .7-10
Assembly 5: Electronics 2 . 7-12
Assembly 6: Options . 7-13
Index I-1
Part number index . I-7





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