Improve The Print Quality - Konica Minolta Bizhub 4000i User Manual

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Improve the Print Quality

If you have a print quality problem, print a test page first. If the printout looks good, the problem is probably not
the machine. Check the interface cable connections and try printing a different document. If the printout or test
page printed from the machine has a quality problem, check the examples of poor print quality in the table and
follow the recommendations.
IMPORTANT
Using non-genuine supplies may affect the print quality, hardware performance, and machine reliability.
1. To get the best print quality, we suggest using recommended print media. Make sure you use paper that
meets our specifications.
2. Check that the toner cartridge and imaging unit are installed correctly.
Examples of poor print quality
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Gray background
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Toner specks
> Improve the Print Quality
CDEF
cdefg
B C
b c d
1 2 3
Faint
Ghost
Recommendation
• If the machine indicates Replace Toner status, install a
new toner cartridge.
• Check the machine's environment. Conditions such as
humidity, high temperatures, and so on, may cause
this print fault.
• Clean the imaging unit.
• Clean the corona wire on the imaging unit.
• Replace the toner cartridge with a new toner cartridge.
• Replace the imaging unit with a new imaging unit.
• Check the machine's environment. Conditions such as
high temperatures and high humidity can increase the
amount of background shading.
• Clean the imaging unit.
• Replace the toner cartridge with a new toner cartridge.
• Replace the imaging unit with a new imaging unit.
• Check the machine's environment. Conditions such as
low humidity and low temperatures may cause this
print quality problem.
• Select the appropriate media type in the printer driver.
• Select the appropriate media type in the menu setting.
• Clean the imaging unit.
• Replace the imaging unit with a new imaging unit.
• Replace the toner cartridge with a new toner cartridge.
• The fuser unit may be contaminated.
Contact customer support.
• Make sure the media type setting in the driver
matches the type of paper you are using.
• Clean the imaging unit.
• The toner cartridge may be damaged.
Replace the toner cartridge with a new toner cartridge.
• The imaging unit may be damaged.
Replace the imaging unit with a new imaging unit.
• The fuser unit may be contaminated.
Contact customer support.
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