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Lexmark X264 Service Manual - Page 215

Toner level sensor removal

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7013-XXX Toner level sensor removal 1. Open the front access door. 2. Remove the right side printer cover. See "Right side printer cover removal" on page 4-73. 3. Disconnect the toner level sensor cable (A) from J5 on the controller board. 4. Squeeze the lower tabs (B) of the toner level sensor, and push it from its holder. B A 5. Remove the toner level sensor through the inside of the printer. Note: The toner level sensor must be installed properly, or the printer will not function. Repair information 4-77

Section	Page
Table of contents	3
Notices and safety information	9
Laser notice	9
Preface	18
Change history	18
1. General information	21
Maintenance approach	21
Overview of the operator panel	22
Specifications	23
Memory	23
Print quality settings	24
Compatibility and connectivity	25
Media trays and supply capacity	26
Types of print media	27
Digital imaging specifications	29
General specifications	29
Scan and copy specific specifications	30
Fax specifications	31
Tools	32
Acronyms	32
2. Diagnostics information	35
Start	35
Overview of the operator panel and menus	36
Understanding the operator panel	36
Operator panel buttons	36
Diagram of the printer menus	39
Messages and error codes	40
User attendance messages	40
Cartridge error messages	45
Paper jam error codes (200-series)	45
Service error codes	51
Symptom tables	57
POST symptom table	57
Printer symptom table	58
Scan/fax /copy symptom table	59
Service checks	60
Controller board service check	60
Cooling fan service check	61
Cover interlock switch service check	61
Dead machine service check	62
Fuser service check	63
LVPS/HVPS service check	63
Main motor service check	64
Media feed clutch service check	64
Operator panel service check	65
Paper feed service checks	65
USB port service check	67
Networking service check	68
Print quality service checks	70
Printhead service check	77
Transfer roll service check	77
Tray 2 service check	78
840.xx service check	78
Black or blank page copy service check	80
CCD service check	80
Flatbed motor service check	80
Flatbed home position service check	81
ADF cover open service check	82
ADF streak service check	82
ADF paper jam service check	83
ADF feed errors service check	84
ADF Duplex service check	85
Modem / fax card service check	86
Fax transmission service check	87
Fax reception service check	89
Escalating a fax issue to second-level support	91
3. Diagnostic aids	93
Menu key combinations	93
Diagnostics Menu (Diag Menu)	94
Diagnostics menu structure	94
Available tests	94
Registration	96
Print tests	97
Miscellaneous Tests	98
Print Tests	98
Hardware Tests	99
Duplex Tests	101
Input Tray tests	103
Output Bin Tests	103
Base Sensor Test	104
Printer Setup	104
EP Setup	106
Reports	107
Event Log	107
Scanner Tests	109
EXIT Diags	114
Printhead assembly electronic adjustment	115
Printhead assembly mechanical adjustment	116
Configuration Menu	118
Available tests	118
USB Scan to Local	118
Prt Quality Pages	118
Reports	119
Panel Menus	119
PPDS Emulation	119
Demo Mode	120
Factory defaults	120
Energy Conserve	120
Min Copy Memory	121
NumPad Job Assist	121
Format Fax Storage	121
ADF Edge Erase	121
FB Edge Erase	122
Scanner Manual Registration	122
Disable Scanner	123
Font Sharpening	124
Reduced Curl	124
USB Speed	124
Exit Config Menu	124
SE Menu	125
Paper jams	126
Avoiding jams	126
Understanding paper jam codes and locations	127
Updating printer firmware	134
Using a USB flash drive	134
Using a networked computer to update the MFP firmware over a network	134
Using the host computer to update the MFP firmware over USB	135
Scanner theory	137
4. Repair information	139
Handling ESD-sensitive parts	139
Removal procedures	140
ACM pick tire roller removal	141
ADF removal	142
ADF cable removal	145
ADF input tray removal	146
ADF scanner assembly removal	147
ADF separator pad removal	149
ADF separator roll assembly removal	150
Controller board removal	151
Cover open sensor removal	152
Door mount removal	153
Duplex removal	154
Duplex ADF rear cover removal	156
Duplex/main motor gear drive interface removal	157
Fan removal	160
Fax card removal	161
Flatbed removal	162
Front door access cover blank removal	166
Front scanner cover removal	167
Fuser removal	168
Left side printer cover removal	171
Left side scanner cover removal	173
Lower access door assembly removal	175
LVPS/HVPS removal	177
Main motor gear drive removal	180
Manual feed clutch removal	182
Manual feed solenoid removal	184
Media ACM ASM feeder removal	186
Media feed clutch removal	189
Media manual input sensor removal	193
Multipurpose feeder (MPF) removal	196
MPF tray removal	199
Multipurpose feeder (MPF) feed clutch removal	200
Nameplate blank cover removal	202
Operator panel removal	203
Operator panel cable removal	204
Paper input and duplex sensor assembly removal	205
Printhead removal	206
Rear door and cover removal	207
Rear exit guide assembly with sensor and reversing solenoid removal	209
Right side printer cover removal	211
Right side scanner cover removal	213
Toner level sensor removal	215
Top printer cover removal	216
Transfer roll removal	217
Upper front guide assembly removal	218
Wear strip (tray 1 and 250-sheet tray 2) removal	219
Wear strip (550-sheet tray 2) removal	220
Wireless antenna removal	221
Wireless card removal	222
5. Locations and connections	223
Locations	223
Front view	223
Rear view	224
Controller board connector pin values	225
6. Preventive maintenance	229
Safety inspection guide	229
Lubrication specifications	229
Maintenance kits	229
7. Parts catalog	231
How to use this parts catalog	231
Assembly 1: Covers	232
Assembly 2: Scanner	234
Assembly 3: Electronics	237
Assembly 4: Frame	239
Assembly 5: Options	241
Assembly 6: Power cords	242
Index	243