Lexmark MS431dn Manuals

Manuals and User Guides for Lexmark MS431dn. We have 1 Lexmark MS431dn manual available for free PDF download: Service Manual

Lexmark MS431dn Service Manual (187 pages)

Brand: Lexmark | Category: Printer | Size: 20 MB

Product Information
2
Edition Notice
2
Table of Contents
3
Notices, Conventions, and Safety Information
9
Laser Notice
9
Avis Relatif à L'utilisation du Laser
9
Aviso de Láser
9
Conventions
10
Safety Information
11
Consignes de Sécurité
12
Información de Seguridad
13
Change History
15
General Information
17
Printer Model Configurations
17
Supported Paper Sizes, Types, and Weights
17
Supported Paper Sizes
17
Supported Paper Types
19
Supported Paper Weights
20
Tools Required for Service
20
Diagnostics and Troubleshooting
23
Troubleshooting Precautions
23
Troubleshooting Overview
25
Performing the Initial Troubleshooting Check
25
Using Safe Mode
25
Fixing Print Quality Issues
26
Gray Background or Toner Fog Check
26
Blank Page Check
27
Print Is too Dark Check
29
Print Is too Light Check
30
Paper Curl Check
33
Folded or Wrinkled Paper Check
34
Solid Black Pages Check
35
Skewed Print Check
37
Streaked Vertical Lines Appear on Prints During a Print Job Check
39
Horizontal Light Bands Check
40
Vertical Light Bands Check
41
Vertical Dark Bands Check
42
Vertical Dark Streaks with Print Missing Check
43
White Streaks and Voided Areas Check
44
Clipped Pages or Images Check
45
Incorrect Margins on Prints Check
47
Toner Rubs off Check
47
Toner Specks Appear on Prints During a Print Job Check
48
Repeating Defects Check
50
Paper Jams
51
Paper Jam Messages
51
Sensor (Input): Static Jam Service Check
58
202 Paper Jams
58
Sensor (Fuser Exit): Static Jam Service Check
63
232 Paper Jams
64
242 Paper Jams
66
User Attendance Messages
66
Unsupported or Unresponsive Toner Cartridge Service Check
68
Unsupported or Unresponsive Imaging Unit Service Check
69
Mismatched Supplies Error Service Check
70
Supplies Low Service Check
70
Printer Hardware Errors
71
111 Errors
71
Error Messages
71
Printhead Service Check
72
Errors
73
Fuser Service Check
74
126 Errors
75
LVPS Service Check
75
140 Errors
76
162 Errors
77
6Yy Errors
79
Procedure before Starting the 9Yy Service Checks
80
Collecting the History Information from the SE Menu
81
Collecting the Firmware Logs (Fwdebug and Logs.tar.gz) from the SE Menu
81
Collecting the Settings from the Menu Settings Page
81
Collecting Information from the User
82
912 Errors
82
938-992 Errors
86
NVRAM Mismatch Failure Service Check
86
Other Symptoms
87
Base Printer Symptoms
87
Tray Near Empty Service Check
88
False bin Full Error Service Check
89
Service Menus
91
Understanding the Printer Control Panel
91
Using the Control Panel
91
Understanding the Status of the Indicator Light
91
Diagnostics Menu
92
Entering the Diagnostics Menu
92
Reports
92
Advanced Print Quality Samples
92
Event Log
92
Print Log
93
Print Log Summary
93
Input Tray Quick Print
93
Output bin Quick Feed
94
Printer Setup
94
Engine Setting [X]
95
Printer Diagnostics & Adjustments
96
Sensor Tests
96
Motor Tests
96
Config Menu
97
Entering the Config Menu
97
Config Menu
98
Service Engineer (SE) Menu
99
Entering the SE Menu
99
General SE Menu
99
Network SE Menu
99
Entering Invalid Engine Mode
100
Entering Recovery Mode
101
Parts Removal
103
Data Security Notice
103
Removal Precautions
103
Handling ESD-Sensitive Parts
105
Critical Information for Controller Board or Control Panel Replacement
106
Updating the Printer Firmware
106
Using a Flash Drive
106
Using a Network Computer
107
Using a USB Cable Connection
107
Ribbon Cable Connectors
108
Low Insertion Force (LIF) Connector
108
Removal Procedures
109
Left Side Removals
109
Left Cover Removal
109
Main Drive Gears Removal
110
Pick Roller Clutch Removal
114
Left Front Door Link Removal
115
Right Side Removals
117
Right Cover Removal
117
Controller Board Removal
119
LVPS Removal
120
HVPS Removal
120
Sensor (MPF Paper Present) Removal
122
Sensor (Front Door Interlock) Removal
123
Right Front Door Link Removal
124
MPF Solenoid Cable Removal
124
Main Fan Removal
125
Front Removals
126
Control Panel Removal
126
Control Panel Cable Removal
127
Upper Front Cover Removal
128
Front Door Removal
128
Transfer Roller Removal
129
MPF Pick Roller Removal
130
Pick Separator Roller Removal
131
Rear Removals
132
Rear Door Removal
132
Fuser Removal
133
Top Removals
134
Top Cover Removal
134
Printhead Removal
135
Redrive Removal
137
Bin Full Sensor Actuator Removal
138
Bottom Removals
140
Duplex Guide Removal
140
Component Locations
143
Printer Configuration
143
Controller Board Connectors
143
Maintenance
149
Cleaning Printer Parts
149
Cleaning the Printer
149
Parts Catalog
150
Legend
150
Assembly 1: Covers
151
Assembly 2: Electronics
153
Assembly 3: Gears
155
Assembly 4: Paper Path
157
Assembly 5: 550-Sheet Optional Tray
159
Assembly 6: Miscellaneous
161
Printer Specifications
163
Power Consumption
163
Product Power Consumption
163
Sleep Mode
163
Hibernate Mode
164
Off Mode
164
Total Energy Usage
164
Selecting a Location for the Printer
164
Noise Emission Levels
165
Temperature Information
165
Theory of Operation
167
POR Sequence
167
Print Cycle Operation
167
Print Engine Layout
167
Print Cycle
168
Printer Operation
174
Printer Sections
174
Printer Paper Path
175
Printer Paper Path Sensors
177
Main Drive
178
Tray Drive
179
Index
180
Part Number Index
183
Part Name Index
185

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Lexmark MS431dn Service Manual (187 pages)

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