Konica Minolta bizhub 420 User Manual

							Troubleshooting12
bizhub 500/420/360 (Phase 3) 12-13
Is a double-sided doc-
ument being copied?If a thin double-sided document 
is being copied, the information 
on the back side may be repro-
duced in the copy. Touch [Light-
er] on the Background Removal 
Screen to select a lighter back-
ground density. (page 4-16)
The image is not 
aligned properly on the 
paper.Is the document incor-
rectly positioned?Correctly position the document 
against the measuring guide. 
(page 4-11)
Load the document into the 
ADF, and slide the adjustable 
document guides to fit the size 
of the document. (page 4-9)
Is the document incor-
rectly positioned in the 
ADF?If the document cannot be fed 
correctly through the ADF, make 
copies by positioning the docu-
ment on the original glass. 
(page 10-15)
Is the original glass 
dirty (while using the 
ADF)?Wipe the glass with a soft, dry 
cloth. (page 13-3)
Are the adjustable doc-
ument guides incor-
rectly positioned 
against the edges of 
the document?Slide the document guides 
against the edges of the docu-
ment.
Was curled paper load-
ed into the paper tray?Flatten the paper before loading 
it.
The printed page is 
curled.Was paper that curls 
easily (as with recycled 
paper) used?Remove the paper from the pa-
per tray, turn it over, and then 
load it again.
Replace the paper with paper 
that is not damp.
The edge of the printed 
output is dirty.Is the document pad 
dirty?Wipe the document pad with a 
soft, dry cloth. (page 13-4)
Was the selected paper 
size larger than the 
document (with a 
Zoom setting of 
×1.000)?Select a paper size that is the 
same size as the document.
Otherwise, select the Auto 
Zoom setting to enlarge the 
copy to the selected paper size. 
(page 4-54)
Is the orientation of the 
document different 
from the orientation of 
the paper (with a Zoom 
setting of ×1.000)?Select a paper size that is the 
same size as the document. Oth-
erwise, select a paper orienta-
tion that is the same as that of 
the document.
Was the copy reduced 
to a size smaller than 
the paper (with a re-
duced zoom ratio 
specified)?Select a zoom ratio that adjusts 
the document size to the select-
ed paper size. Otherwise, select 
the Auto Zoom setting to re-
duce the copy to the selected 
paper size. (page 4-54)
SymptomPossible CauseRemedy
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							12Troubleshooting
12-14 bizhub 500/420/360 (Phase 3)If any message other than those listed above is displayed, perform the 
operation described in the message. If the problem is not corrected after the 
described operation is performed, contact your service representative.
Even though the paper 
misfeed was cleared, 
copies cannot be pro-
duced.Are there paper mis-
feeds at other loca-
tions?Check the touch panel for JAM 
location display and then re-
move any misfeed paper at all 
other locations. (page 12-6)
Copying is not possible 
even though the pass-
word is entered on a 
machine with user au-
thentication/account 
track set.Did the message Your 
account has reached 
its maximum allow-
ance. is displayed?Contact your administrator.
ADF The document is not 
fed.Is the ADF slightly 
open?Securely close the ADF.
Is the document one 
that does not meet the 
specifications?Replace the document with one 
that meets the specifications. 
(page 10-15)
Is the document cor-
rectly loaded?Position the document correctly. 
(page 4-9)
Finisher The finisher cannot be 
used.Is there a paper mis-
feed in the finisher?If there is a paper misfeed, clear 
it.
Is the finisher door fully 
closed?Securely close the finisher door.
The pages cannot be 
stapled.Have the staples run 
out?Replace the staple cartridge. 
(page 11-9)
The staple is incorrect-
ly positioned by 90 de-
grees.Are the staples posi-
tioned as specified?Select the desired position for 
the staples. (page 7-12)
The pages that were 
fed out were not uni-
formly loaded and the 
punched holes or sta-
ples are incorrectly po-
sitioned.Is the paper curled? Remove the paper from the pa-
per tray, turn it over, and then 
load it again.
Is there a gap between 
the lateral guides in the 
paper tray and the side 
of the paper?Slide the lateral guides in the pa-
per tray against the side of the 
paper so that there is no gap.
Even though a Punch 
setting was selected, 
holes are not punched. 
(when PU-501 is in-
stalled on FS-510)Did the message Re-
move Punch Scraps. 
is displayed?Empty the punch dust box.
SymptomPossible CauseRemedy
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							Troubleshooting12
bizhub 500/420/360 (Phase 3) 12-15
12.5 Main Messages and Their Remedies
MessageCauseRemedy
Original left on glass. The document was left on the 
original glass.Remove the document from 
the original glass.
Matching paper size is not 
available.
Select paper size.Paper of a suitable size is not 
loaded in a paper tray. Either select paper of a differ-
ent size or load paper of a 
suitable size.
Original size cannot be de-
tected.
Select paper size.The document is not posi-
tioned correctly.Position the document cor-
rectly.
A document with a non-stand-
ard size or with a size too 
small to be detected is load-
ed.Select the correct paper size.
This mode cannot be set with 
XXX.A setting was selected that 
gives priority to the setting se-
lected first.Make copies using only one of 
the settings, for example, by 
canceling the setting selected 
first.
The Exit Tray has reached its 
capacity.
Please remove all pages from 
% section tray.Since the maximum amount of 
copies for the indicated finish-
er exit tray has been exceed-
ed, the machine is unable to 
make copies.Remove all copies from the in-
dicated tray.
Input User Name and Pass-
word to login.User authentication settings 
have been specified. Copies 
cannot be made unless a user 
name and its correct pass-
word are entered.Type in your user name and 
password. (page 3-45)
Input Account Name and 
Password to login.Account track settings have 
been specified. Copies cannot 
be made unless an account 
name and its correct pass-
word are entered.Type in your account name 
and password. (page 3-49)
Your account has reached its 
maximum allowance.The limit on the number of 
copies that can be made has 
been reached.Contact your administrator.
Section % is open.
Close % Section properly.Since a machine door or cover 
is open or an option is not in-
stalled correctly, the machine 
is unable to make copies.Make sure that all doors and 
covers are closed and that all 
options are installed correctly.
Replenish paper. The indicated tray has run out 
of paper.Load paper into the indicated 
tray. (page 3-52)
Replace the Toner Cartridge. Since the toner has run out, 
the machine is unable to make 
copies.Replace the toner cartridge.
Stapler empty. Replace Staple 
Cartridge or cancel Staple 
mode.The staples have run out. Replace the staple cartridge. 
(page 11-9)
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							12Troubleshooting
12-16 bizhub 500/420/360 (Phase 3)If any message other than those listed above is displayed, perform the 
operation described in the message. If the problem is not corrected after the 
described operation is performed, contact your service representative.
Misfeed detected. Since a paper misfeed oc-
curred, the machine is unable 
to make copies.Clear the paper misfeed.
Malfunction detected.
Please call your Service Rep-
resentative.The machine malfunctioned 
and is unable to make copies.Turn OFF the main and sub 
power switch and unplug the 
machine. Then inform your 
service representative of the 
code displayed on the touch 
panel.
MessageCauseRemedy
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							13Machine Maintenance
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							Machine Maintenance13
bizhub 500/420/360 (Phase 3) 13-3
13 Machine Maintenance
13.1 Cleaning
This section describes the procedures for cleaning each part.
Cleaning the left partition glass
Keep the glass clean; otherwise soil marks 
may be copied, resulting in dark lines on 
the copies.
%Raise the ADF, and clean the left 
partition glass by wiping it with a 
soft, dry cloth.
2
Reminder 
Never use solvents, such as benzene or thinner, to clean the left partition 
glass.
Cleaning the original glass
Keep the glass clean; otherwise spots may 
be copied.
%Raise the ADF, and clean the surface 
of the original glass by wiping it with 
a soft, dry cloth.
2
Reminder 
Never use solvents, such as benzene or thinner, to clean the original 
glass.
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							13Machine Maintenance
13-4 bizhub 500/420/360 (Phase 3)Cleaning the document pad
Keep the pad clean; otherwise spots may 
be copied
%Raise the ADF, and clean the 
document pad by wiping it with a 
soft, dry cloth.
2
Reminder 
Never use solvents, such as benzene or thinner, to clean the document 
pad.
Cleaning the paper take-up roller
Keep the roller clean; otherwise soil marks 
may be copied, resulting in dark lines on 
the copies.
%Clean the paper take-up rollers by 
wiping them with a soft, dry cloth.
2
Reminder 
Never use solvents, such as benzene or thinner, to clean the paper take-
up roller.
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							Machine Maintenance13
bizhub 500/420/360 (Phase 3) 13-5Cleaning the writing unit glass and the electrode wires
Keep the writing unit glass and the electrode wires clean; otherwise soil 
marks may be copied, resulting in dark lines on the copies.
1Open the main front door, then 
withdraw and push in the writing unit 
glass cleaning knob and the corona 
wire cleaning knob, several times.
2Firmly push in these knobs, then 
close the machine front door.
Cleaning the main unit
%Clean the surface of the main unit by 
wiping it with a soft cloth dampened 
with a mild household detergent.
2
Reminder 
Be sure to turn off the main power switch before cleaning it.
Never use solvents, such as benzene or thinner, to clean the main unit.
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							13Machine Maintenance
13-6 bizhub 500/420/360 (Phase 3)Cleaning the control panel
%Clean the control panel by wiping it 
with a soft, dry cloth.
2
Reminder 
Pressing too hard on the control panel or the touch panel may damage 
them. Never use a mild household detergent, glass cleaner, benzin or 
thinner to clean the control panel or touch panel.
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