Konica Minolta magicolor 4750EN User Manual

Cleaning the Printer 8-8
Cleaning the Media Transfer Rollers for Tray 3
1Open the right side cover of 
Tray 3.
Before opening the right 
side cover of Tray 3, fold 
up Tray 1.
2Clean the media transfer rollers 
by wiping them with a soft, dry 
cloth.
3Close the right side cover of 
Tray 3.
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Cleaning the Printer8-9 Cleaning the Laser Lens
This printer is constructed with four laser lenses. Clean all lenses as 
described below. The laser lens cleaning tool should be attached to the inside 
of the tray 2.
1Pull out the tray 2.
2Remove the cover.
Since the cover will be used 
later, do not return it to its 
original position.
3Remove the cleaning tool from 
the tray 2. 
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Cleaning the Printer 8-10
4Close the tray 2.
5Open the printer’s front cover.
6Remove the waste toner bottle 
and the toner cartridge and 
imaging unit for the color of laser 
lens to be cleaned.
For details on removing the 
toner cartridge, imaging unit 
or waste toner bottle, refer to 
“Replacing a Toner Car-
tridge” on page 7-7 or 
“Replacing a Imaging Unit” 
on page 7-12.
Do not tilt removed toner car-
tridge, otherwise toner may 
spill.
Do not tilt removed waste toner box, otherwise waste toner...

Cleaning the Printer8-11
7Attach the cover to the removed 
imaging unit.
8Insert the laser lens cleaning 
tool into the imaging unit open-
ing, pull it out, and then repeat 
this back and forth movement 2 
or 3 times.
9Install the removed toner car-
tridge, imaging unit and waste 
toner bottle.
For details on installing the 
toner cartridge, imaging unit 
or waste toner bottle, refer to 
“Replacing a Toner Car-
tridge” on page 7-7 or 
“Replacing a Imaging Unit” 
on page 7-12.
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Cleaning the Printer 8-12
10Close the front cover.
When closing the front 
cover, press the area of 
the cover with small pro-
jections.
11Pull out the tray 2.
12Return the laser lens cleaning 
tool to its holder on the inside of 
the tray 2.
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Cleaning the Printer8-13
13Close the cover.
14Close the tray 2.
15Clean between each of the laser lenses in the same way.
The laser lens cleaning tool is included with the printer.
Safely store the laser lens cleaning tool so that it will not be lost.
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Cleaning the Printer 8-14
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Troubleshooting
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Introduction 9-2
Introduction
This chapter provides information to aid you in resolving printer problems you 
may encounter, or at least guide you to the proper sources for help. 
Printing a Configuration Page
Print a configuration page to verify the printer is printing correctly, or to check 
the printer configuration.Printing the Configuration Page page 9-2
Preventing Media Misfeeds page 9-3
Understanding the Media Path page 9-4
Clearing Media Misfeeds page 9-5
Solving Problems with Media Misfeeds page...

Preventing Media Misfeeds9-3
Preventing Media Misfeeds
Make sure that...
Media matches the printer specifications.
Media is flat, especially on the leading edge.
The printer is on a hard, flat, level surface.
You store media in a dry location away from moisture and humidity.
You always adjust the media guides in the tray after inserting the media (a 
guide that is not properly adjusted can cause poor print quality, media mis-
feeds, and printer damage).
You load the media printing-side up in the tray...