Home
Lexmark
All in One Printer
X925
Lexmark X925 Service Manual
5
of 1
of 1 rating
488 pages
Give review
Manual
Specs
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
4-42
Servi
ce
Manual
7541-0
3x
Pape
r siz
e s
ensor
re
mov
al
This i
s the paper size sen
sor for
t
he top MPF tray.
1.
Remove the standa
rd paper tr
ay.
2.
Remove the
MPF p
aper t
ray.
3.
Remove the 15 screws (A
) securi
ng the sensor
suppor
t frame t
o
the pr
int engi
ne frame.
4.
Remove the pape
r size sensors
.
223
225
Table of Contents
Default Chapter
3
Table of Contents
3
Notices and Safety Information
13
Safety Information
15
Preface
18
Conventions
18
General Information
19
Maintenance Approach
19
Models
19
Printer Configurations
20
Options and Features
21
Print Engine Specifications
22
Power Specifications
22
Electrical Specifications
22
Clearances
22
Acoustics
23
Environment
23
Performance
24
Processor
24
Memory
24
Paper Specifications
24
Paper Sizes Supported by the Printer
24
Media Types
25
Media Weights
26
Media Guidelines
27
Paper
27
Paper Characteristics
27
Unacceptable Paper
28
Selecting Paper
28
Scan Fax and Copy Specifications
29
General Specifications
29
Fax Features
30
Scanner Specifications
31
MFP Scan Speed
32
Tools Required for Service
33
Acronyms
34
Diagnostic Information
37
Start
37
Flatbed / ICC Card NVRAM
38
Initial Check
38
POR (Power-On Reset) Sequence
39
Print Quality Issues
40
Repeating Defects
40
One Color Missing
41
Contaminated Background
41
Lowered Print Density
42
White Stripes
42
Uneven Print
42
Partial Dirt
43
Repeating Marks
43
Black Stripes
43
Unprinted Spots
44
Partially Dark or Light Print
44
Black Page
45
No Print
45
Stain on Back of Page
46
Failure to Fuse
46
Stains on Edge of Page
46
ADF & Scanner Print Quality
47
Image Quality Symptoms
47
Dark Image Quality (Using ADF or Scanner)
47
Vertical Lines (Process Direction Using the ADF)
48
Spots (Using Flatbed Scanner)
48
Skew (Using ADF)
50
Media Damage (Using ADF)
51
Black Page from Scanner
52
Paper Jams
53
Clearing and Troubleshooting Paper Jams
54
Paper Jam
54
Paper Jam
55
Paper Jam
56
Paper Jam
57
24X Paper Jam
58
Paper Jam
59
Duplex Unit Service Check
60
Paper Path Service Checks
60
Paperfeed Unit Service Check
63
MPF Service Check
64
Clearing and Resolving Scanner Jams
65
Paper Missing
65
Scanner Static Jam - Scan Sensor Jam
66
Scan Sensor Jam
67
Scanner ADF Eject Jam
68
Scanner ADF Cover Open Jam
69
Flatbed Cover Open
71
Scanner Carriage Locked
71
ADF Paper Jam Service Check
72
Error Codes
74
Abnormal Exit Motor
74
990 XX Service
75
976 XX Standard Network or Network Card X
75
Abnormal EEPROM
75
Service NCVRAM Mismatch
75
Service NV Failure
75
Service NVRAM Failure
75
Service Code CRC <Loc
75
Service System Board
75
Service NAND Failure
75
959,XX Service Invalid Firmware
75
Service Memory Error
75
Service Emulation Error
75
Fax T30 Log Error Codes
77
Service Checks
81
Black Printhead Error
81
Cyan Printhead Error
81
Magenta Printhead Error
81
Yellow Printhead Error
81
Thermistor 1 Error
82
Thermistor 2 Error
82
Thermistor 3 3 Error
83
Belt Thermistor Error
83
Fuser - Fuser Heater Error
84
Abnormal Fuser Temperature Error
84
Power Switch Error
84
High Voltage Power Supply Error
85
Density Sensor Error
85
Abnormal Theta Sensor
86
Temperature Humidity Sensor Error
86
Drive Motor Error
87
Fuser / Paper Exit Motor Error
87
Tray1Error
88
Tray 3 Error
88
Tray 4 Error
89
Tray 5 Error
90
Fuser Fan Error
90
Power Supply Unit Fan Error
91
Main Unit Fan Error
91
Rear Fan Error
91
Service Check
92
Invalid Configuration or ASIC Not Found
92
Invalid AFE Setting
92
Delayed Interrupt Detected
93
Failed Indirect Register Test
93
Failed External DRAM Test
93
Image Pipe Time-Out
93
Scanner DID Not Initiate Scan
94
No Response / 842.01 HW Protocol / 842.02 Logical Protocol
94
Carriage Home
95
Lamp Failure (Front Side)
95
Device Had Modem Installed, but Config ID Indicates It Should Not
95
Device Had HD Installed, but Config ID Indicates It Should Not
95
System Software Error
96
SDRAM R/W Error
98
MDC Error
98
CPU Error
99
MDC Controller Error
99
EEPROM Error
99
950.29-EPROM Mismatch Failure
100
Service Invalid Firmware Error
101
User Attendance Messages
102
User Prompts
102
User Attendance Messages (0-99)
105
Other Symptoms
111
Print Engine
111
Scan / Copy
112
ADF Streaks
112
Clipped Image When Scanning to USB from the ADF
112
ADF Cover Open Service Check
113
Fax Symptoms
114
Faxes Fail to Transmit
114
Fax Reception Fails
116
Escalating a Fax Issue to Second-Level Support
118
Words on Fax Are Stretched
119
Incoming Fax Has Blank Spaces or Poor Quality
119
No Dial Tone
119
Fax Dials a Number, but no Connection Is Made
119
Other Service Checks
120
Networking Service Check
120
Option Card Service Check
122
USB Port Service Check
122
False Close Door Service Check
122
Operator Panel Service Check
123
Display Functions but the Keyboard Doesn't Work Properly
123
Display Fails to Illuminate
123
Insert Tray Service Check
124
Paper Skew Service Check
125
Imaging Unit (Photo Developer) Missing Service Check
125
Option Card Service Check
126
Serial Port
126
Flash Options
126
DRAM Options
126
Hard Disk Option
127
Network Card Option
127
Error Code 976 - Network Card X
127
Network <X> Software Error
127
Power Supply (Dead Machine) Service Check
128
Printhead Service Check
129
Transfer Belt up down Check
129
Unable to Print from USB Thumb Drive Service Check
130
Waste Toner Bottle Missing Service Check
130
Wrong Paper Size Service Check - Tray1
131
Wrong Paper Size Service Check - Tray2
131
Paper in ADF Size Service Check
132
Diagnostic Aids
133
Understanding the Operator Panel and Menus
133
Operator Panel (Need New Art)
133
Understanding the Home Screen
134
Using the Touch Screen
135
Administrative Menus
138
Accessing the Service Menus
139
Configuration Menu
141
Entering Config Menu
141
Reset Separator Roll and Pick Assembly Counter
142
Reset Fuser Counter
142
Reset Maintenance Counter
142
Reset Transfer Belt Counter
143
USB Scan to Local
143
Black Only Mode
143
Print Quality Pages
143
Fuser Speed
143
Reports
143
Color Trapping
143
Tray Insert Message
144
Size Sensing
144
Panel Menus
144
PPDS Emulation
144
Download Emuls
144
Demo Mode
144
Factory Defaults
144
Energy Conserve
145
Fax Low Power Support
145
Min Copy Memory
145
Numpad Job Assist
145
Format Fax Storage
145
Fax Storage Location
145
Auto Align Adj
145
Color Alignment
146
ADF Edge Erase
146
FB Edge Erase
147
Scanner Manual Registration
147
Disable Scanner
147
Paper Prompts
147
Envelope Prompts
147
Action for Prompts
147
Jobs on Disk
147
Disk Encryption
148
Erase All Information on Disks
148
Wipe All Settings
148
Font Sharpening
148
Require Standby
148
UI Automation
148
Key Repeat Initial Delay
148
Key Repeat Rate
148
Clear Custom Status
148
USB Speed
149
USB Pnp
149
Automatically Display Error Screens
149
Exit Config Menu
149
Diagnostics Mode
150
Entering Diagnostics Mode
150
Diagnostic Mode Menus
150
Scanner Calibration
152
Adjust Calibration Values
152
Reset Calibration Values
152
Print Tests
152
Print Tests (Input Sources)
152
Print Quality Pages
153
Hardware Tests
153
Panel Test
153
Button Test
153
DRAM Test
153
Serial Wrap Test
154
USB HS Test Mode
155
Device Tests
155
Quick Disk Test
155
Disk Test/Clean
155
Flash Test
156
Input Tray Tests
156
Printer Setup
156
Defaults
156
Page Counts
157
Serial Number
157
Engine Setting (1-16)
157
Model Name
157
Configuration ID
157
Reset Color Calibration
157
Cal Ref Adj
157
Par 1 Strobe Adj
158
Reports
158
Event Log
158
Display Log
158
Print Log
159
Clear Log
159
Scanner Tests
160
Scanner Calibration Reset
160
ASIC Test
160
Feed Test
160
Sensor Test
160
ADF Magnification
160
Exit Diagnostics
160
Theory of Operation
161
Printer Engine
161
Electrophotographic Process (EP Process)
161
MFP Electrophotographic Process Basics
161
Step 1: Charge
162
Step 2: Expose
163
Step 3: Develop
164
Step 4A: First Transfer
165
Step 4B: Second Transfer
166
Step 5: Fuse
167
Step 6: Clean/Erase
168
Cleaning Blade
169
Paper Path Components
170
Paper Feed
170
Feeding Paper from a Tray
172
Feeding Paper from the MPF
173
Scanner
176
Duplex ADF
176
Color Theory
179
What Is RGB Color
179
What Is CMYK Color
179
How Is Color Specified in a Document to be Printed
179
How Does the Printer Know What Color to Print
179
Should I Use Postscript or PCL Emulation? What Settings Produce the Best Color
179
Why Doesn't the Printed Color Match the Color I See on the Computer Screen
179
The Printed Page Appears Tinted. Can I Adjust the Color
179
My Color Transparencies Seem Dark When They Are Projected. Is There Anything I Can Do to Improve the Color
180
What Is Manual Color Correction
180
How Can I Match a Particular Color (such as a Corporate Logo)
180
What Are Detailed Color Samples and How Do I Access Them
181
Repair Information
183
Handling ESD-Sensitive Parts
183
Flatbed / ICC Card NVRAM
184
RIP Board/Operator Panel Replacement
184
Printhead Controller Board / Engine Board Replacement
184
Esf Solutions Backup
185
Removal Procedures
186
Arrangement of Removals in this Chapter
186
Cover Removals
187
RIP Cover
187
Scanner Power Supply Access Cover
188
Cord Cover
188
Rear Cover
189
Front Op Panel Cover
193
Op Panel Top Cover
195
Op Panel Bottom Cover
197
Upper Right Cover
198
Output bin (Print Engine Top) Cover
199
Back Cave Cover
200
Inner Right Cover
201
Left Cover Removal
204
Speaker Removal
207
Top Removals
208
Output bin Full Sensor Actuator Removal
208
LED Assembly Removal
211
LED Print Head Removal
213
Op Panel Paper Exit Guide Removal
214
Paper Exit Guide Removal
215
Bin Full Sensor Removal
218
Paper Exit Sensor Removal
219
Printhead Controller Board Removal
219
Top EMI Sheild Removal
221
Front Removals
222
Transfer Belt - CRU
222
Transfer Belt Position Sensor Removal
223
Paper Size Sensor Removal
224
Photoconductor Lock Removal
225
Cassette Stopper Removal
226
Left Side Removals
227
Left EMI Shield Removal (Not a FRU)
227
Low Volt Power Supply Removal
233
Main Fan Removal
235
Power Supply Fan Removal
237
Theta Sensor Removal
238
Density Sensor Removal
239
Main Switch
240
Scanner Power Supply Removal
240
Right Side Removals
243
Fuser Removal
243
Handle Cover Removal
244
Duplex Removal
245
Paper Feed Unit Removal
250
Transfer Roll - CRU
254
Rear Removals
255
RIP Board Removal
255
Crossbar Removal (Not a FRU)
256
Engine Board and Mount Removal (Not a FRU)
257
Drive Unit Cover (Not a FRU)
259
Drive Unit
261
Drive Unit Motor C/M/Y/K
265
Sub Drive Unit Removal
266
Door Interlock Switch Removal
271
Duplex Solenoid Removal
272
Fuser Entry Sensor Removal
273
Engine Board (MDCONT)
274
Fuser Fan
274
Fuser Exit Drive Unit Motor Removal
275
Modem Removal
276
Papertray Lift Motor Removal
276
RIP Cage Removal
277
Toner Sensor Removal
279
Transfer Belt Motor Removal
282
Temperature and Humidity Sensor Removal
283
Rear Fan
284
Sub Frame Unit
286
Paper Size Switch Removal
287
Rear EMI Shield - Not a FRU
288
Paper Feed Motor Removal
292
HVPS Removal
293
Waste Toner Sensor Removal
294
Scanner Area Removals
295
ADF Assembly Removal
295
ADF Pick Roll Removal
296
ADF Separator Roll Removal
297
Flatbed Assembly Removal
298
Flatbed Front Cover
299
UICC Removal
302
Touchscreen Assembly Removal
303
ADF Relay Board
304
ICC Board
305
CCD Chassis
306
CCD Belt
308
Optical Paper Size Sensor
309
ADF Cable
310
ADF Motor Frame
311
ADF Solenoid
314
ADF Drive Clutch
314
ADF Input Tray
315
ADF Main Feeder
316
ADF Clutch
319
ADF Hinge
319
FB Hinge
320
Tray Paper Size Sensors
320
ADF Cover Open / ADF Pick Sensor
324
ADF Cover Open Sensor Actuator
325
Paper Present / Paper in Sensor
326
Paper Present Sensor Actuator
327
Paper in Sensor Actuator
327
Paper Path Sensor
328
Scan Sensor
328
Scan Sensor Actuator
330
Scan Sensor Cover (Not a Fru)
331
Duplex Timing Sensor
334
Duplex out (Scan Out) Sensor
339
Duplex out Sensor Actuator
340
Flatbed Cover Closed Sensor
341
Flatbed Upper Cover
343
Outer ADF Top Cover
345
Inner ADF Top Cover
346
ADF Relay Card Cover
349
Left ADF Cover
349
Right ADF Cover
352
Duplex Unit Component Removals
354
Duplex Clutch Removal
354
Duplex Timing Belt Removal
355
Duplex Exit / MPF Sensor Removal
355
MPF Clutch Removal
356
MPF Tray Assembly Removal
357
Paperfeed Unit Component Removals
359
Separating the MPF Tray and Main Tray Paperfeed Units
359
Paperfeed Unit Clutch Removal
361
Registration Sensor (MPF Tray) Removal
361
Registration Sensor Actuator Removal
362
Static Discharge Brush Removal
362
Torque Limiter Removal
363
Upper and Lower Registration Springs Removal
363
Paperfeed Maintenance Kit Removals
364
Pick Roll Removal
364
Separator Roll Removal
365
Registration Roll Removal
366
MPF Roll Removal
367
MPF Pad Removal
369
Exit Guide (Paper Exit) Roll Removal
372
Option Paper Feed Removals
378
Paper Feed Roll Removal
378
Pick Roll Removal
378
Separator Roll Removal
379
Paper Size Switches Removal
379
Paper Level Sensor Removal
380
Transport Sensor Removal
380
Paper Empty Sensor Removal
381
Paper Full Sensor Removal
381
Option Controller Board Removal
382
Stepper Motor Removal
382
Tray Lift Motor Removal
383
Option Door Inter Lock Switch Removal
384
Paper Feed Clutch Removal
385
Adjustments
387
Calibrating the Scanner
387
Adjusting ADF Magnification
388
Adjusting Scanner Registration
388
Locations
389
Print Engine Cross Section
389
Flatbed / ADF Sensors
391
Adf
391
Flatbed Sensors
391
Rip Board Connectors
392
Scanner (Secondary) Power Supply
413
Scanner ICC Board Connectors
414
ADF Relay Card Connectors
419
UICC Connectors
422
Option Feeder Locations
423
Option Feeder Layout
423
Option Board Layout
424
Option Board Connector Values
425
Preventive Maintenance
427
Safety Inspection Guide
427
Lubrication Specifications
427
Scheduled Maintenance
427
Parts Catalog
429
How to Use this Parts Catalog
429
Assembly 1: Covers
430
Assembly 2: Flatbed and ADF
432
Assembly 3: Flatbed
434
Assembly 4: ADF 1
436
Assembly 5: ADF 2
438
Assembly 6: Duplex Components 1
440
Assembly 7: Duplex Components 2
442
Assembly 8: Paper Exit
444
Assembly 9: Base 1
446
Assembly 10: Base 2
448
Assembly 11: Base 3
450
Assembly 12: Paper Feed
452
Assembly 13: Electrical 1
454
Assembly 14: Electrical 2
456
Assembly 15: Upper Assembly
458
Assembly 16: Printhead Controller Board Cables
460
Assembly 17: Paper Trays
462
Assembly 18: Fuser
464
Assembly 19: 550 Sheet Option Feeder Covers
466
Assembly 20: 550 Sheet Option Feeder Base
468
Assembly 21: 550 Sheet Option Feeder Paper Feed
470
Assembly 22: 550 Sheet Option Feeder Tray
472
Assembly 23: Maintenance Kits, Power Cords, and Options
474
Index
474
Part Number Index
481
Other manuals for Lexmark X925
User Guide
334 pages
Quick Reference
18 pages
Maintenance Guide
18 pages
Ftp Guide
3 pages
Supplies Guide
2 pages
Installation
2 pages
5
Based on 1 rating
Ask a question
Give review
Questions and Answers:
Need help?
Do you have a question about the Lexmark X925 and is the answer not in the manual?
Ask a question
Lexmark X925 Specifications
Weight and Dimensions
Package weight
227 g
Related product manuals
Lexmark X945
272 pages
Lexmark X940E
272 pages
Lexmark X945e
272 pages
Lexmark x9350
22 pages
Lexmark X950de
8 pages
Lexmark X952DTE
372 pages
Lexmark X95 series
1164 pages
Lexmark X950 Series
362 pages
Lexmark X422
250 pages
Lexmark X543
359 pages
Lexmark X2470
70 pages
Lexmark X2600
69 pages
To Next PageTo Next PageTo Previous PageTo Previous Page
Loading...
Need help?
Weight and Dimensions
