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Lexmark X342N Service Manual - Page 68

Using the test copy rulers to determine correct scanner registration with build 67 firmware

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7003-XXX Using the test copy page rulers to determine correct scanner registration with build 67 firmware The test copy sheet contains rulers that are used to determine the correct margin position. The following diagrams show where the margins for letter and A4 paper need to line up on the flatbed or ADF to determine correct scanner registration. Correct letter and A4 flatbed registration Flatbed registration is correct when the left margin equals 0 for letter and A4 paper, and the right margin equals 0 for letter and 15 for A4. Correct ADF registration with letter paper The ADF registration for letter paper is correct when the left and right margins equal 0. The following illustration shows the correct registration. Correct ADF registration with A4 paper The ADF registration for letter paper is correct when the left margin equals 8 and right margin equals -8. The following illustration shows the correct registration. 3-8 Service Manual manuals4you.com

Section	Page
Cover Page-Service	1
Table of contents	3
Safety notices	7
1. General information	15
Maintenance approach	15
MFP Specifications	15
Minimum clearance requirements	15
Memory	15
Print speed	15
Supported operating systems	16
Connectivity and compatibility	16
Supported external network connections	16
Fonts	16
Media trays and supply capacity	17
Types of print media	18
Scanner specifications	19
Fax Specifications	20
Tips on preventing jams	20
Tools	21
Acronyms	22
2. Diagnostic information	23
Start	23
Power-On Reset (POR) sequence	23
Symptom tables	24
POST symptom table	24
POST symptom table	24
MFP symptom table	24
Understand the operator panel	26
Buttons	26
Using the MFP menus	28
Messages and error codes	29
Service error codes	29
Non 9xx service errors	30
Error	30
Description	30
Action	30
Paper jam messages	31
User attendance messages	32
Sub error codes	35
Displayed error codes	35
Values	36
Disconnects on the controller card	40
Service checks	41
ADF service check	41
CCD service check	42
Cold fuser service check	42
Cooling fan service check	42
Controller card service check	43
Cover interlock switch service check	44
Dead machine service check	44
Fax quality service check	45
Diagnosing fax problems	45
Fuser service check	45
Fuser service check (continued)	46
Hot fuser service check	46
LVPS/HVPS service check	47
Main motor service check	47
Modem service check	48
Network card service check	48
Operator panel service check	49
Paperpath sensor service check	50
Printhead service check	50
Paper feed service checks	51
Paper jam error indication during POST	51
Paper picks during POST and/or continuously	51
Paper picks but stops half way through the MFP	51
Paper never picks	51
Paper occasionally picks or picks multiple sheets at once	52
Paper “trees,” wrinkles, stacks poorly or curls	52
A4, oversized paperfeed service check	52
Print quality service checks	53
Using print quality test pages	53
Blank page	53
Black page	53
Heavy background	54
Partial blank image/white spots (no periodic pattern)	54
Variation in image density horizontally across page	54
Poor fusing of image	54
Light print	55
White or black lines or bands	55
Toner on back of page	55
Solving print quality problems	56
Scan quality service checks	59
Image unclear	59
Irregular movement	59
No image	59
Toner sensor service check	60
Transfer roll service check	60
3. Diagnostic aids	61
Accessing service menus	61
Printing menus	61
Diagnostics mode	62
Available menu items	62
Serial number	63
USB	63
Printer Model	64
Power supply ID	64
Count reset	64
Page Count	64
Fax Usage	65
Scan Usage	65
Network menu	65
Print Debug	65
Force Speed	65
NVRAM Reset	66
Registration	66
Printer Registration	66
Scanner Registration	67
Using the test copy page rulers to determine correct scanner registration with build 67 firmware	68
Scanner calibration	69
ATM menu	69
Fax settings	69
Fax Modulations	69
Detect EOLs	69
AutoPrint T30 Log	69
Print T30 Log	70
Print All T30 Logs	70
Print CND logs	70
Print Stack Info	70
Station ID	70
Faxtrace Mask	70
Homologation settings	71
Utilities	71
Fax NVRAM	71
Clr Phonebook	71
ERASE FFS	71
4. Repair information	73
Handling ESD-sensitive parts	73
Removal procedures	74
Covers	74
Extender cover removal	74
Front access cover removal	74
Left side cover removal	75
Rear cover removal	77
Upper right side cover removal	80
Lower right side cover removal	82
Top cover removal	83
Card cage removal	84
Controller card removal	85
Cover open sensor removal	87
Developer drive coupling assembly removal	88
Exit sensor removal (on the fuser)	89
Fan removal	90
Feed rollers (autocompensator tires) removal	91
Fuser removal	92
Fuser idle gear links removal	93
Fuser power cable removal	94
Input roller clutch and lever removal (autocompensator clutch)	95
Input sensor #1 removal	96
Input sensor #2 (manual feed) removal	97
LVPS/HVPS card assembly removal	98
LVPS/HVPS to controller card cable removal	99
Manual feed clutch assembly removal	100
Network card removal	101
Operator panel assembly removal	102
Paper exit guide assembly removal	103
Printhead removal	104
Transfer roll removal	105
Transport motor cable removal	106
Scanner ADF paper tray removal	107
Scanner ADF top assembly removal	108
Scanner ADF top cover removal	110
Scanner ADF separator pad removal	110
Scanner ADF pick roll assembly removal	111
Scanner ADF pick roll hinge removal	113
Scanner ADF assembly removal	114
Scanner ADF cable removal	117
Scanner flatbed cover removal	120
Scanner top removal	120
Scanner CCD assembly removal	121
Scanner base assembly removal	123
Modem card removal	126
Modem speaker assembly removal	127
5. Locations and connections	129
Locations	129
Front view	129
Rear view	129
ADF	130
Connections	131
Power supply board	131
Power supply board connections	131
Controller card	132
Controller card connections	133
Modem card	134
Wiring diagram	135
Controller card pin assignments	136
J3 ADF	136
J 69 Modem	137
J5 Operator panel	138
J1 Flatbed motor	139
J4 CCD module	140
6. Preventive maintenance	141
Printer engine	141
Scanner	141
Parts	143
How to use this parts catalog	143
Assembly 1: Covers	144
Assembly 2: Scanner	146
Assembly 2 (continued): Scanner	148
Assembly 3: Electronics	149
Assembly 4: Frame	151
Assembly 5: Miscellaneous	153
Index	155
Part number index	159

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3-8

Service Manual

7003-XXX

Using the test copy page rulers to determine correct scanner registration with build

67 firmware

The test copy sheet contains rulers that are used to determine the correct margin position. The following

diagrams show where the margins for letter and A4 paper need to line up on the flatbed or ADF to determine

correct scanner registration.

Correct letter and A4 flatbed registration

Flatbed registration is correct when the left margin equals 0 for letter and A4 paper, and the right margin equals

0 for letter and 15 for A4.

Correct ADF registration with letter paper

The ADF registration for letter paper is correct when the left and right margins equal 0. The following illustration

shows the correct registration.

Correct ADF registration with A4 paper

The ADF registration for letter paper is correct when the left margin equals 8 and right margin equals -8. The

following illustration shows the correct registration.

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