Konica Minolta bizhub 20 User Manual

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Paper is jammed in the MP trayC
If the LCD shows Jam MP Tray, follow 
these steps:
aRemove the paper from the MP tray.
bRemove any jammed paper from in and 
around the MP tray.
 
cClose the MP tray. Then open the front 
cover and close it to reset the machine.
Open the MP tray again.
dFan the paper stack, and then put it back 
in the MP tray.
 
eWhen loading paper in the MP tray, 
make sure that the paper stays under 
the maximum paper height guides on 
both sides of the tray.
 
Paper is jammed in Paper Tray 1 or 
Tray 2
C
If the LCD shows Jam Tray 1 or 
Jam Tray 2, follow these steps:
aPull the paper tray completely out of the 
machine.
For Jam Tray 1:
 
For Jam Tray 2: 
bUse both hands to slowly pull out the 
jammed paper.
 
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C
cMake sure the paper is below the 
maximum paper mark (b) of the paper 
tray. While pressing the blue paper-
guide release lever, slide the paper 
guides to fit the paper size. Make sure 
that the guides are firmly in the slots.
dPut the paper tray firmly back in the 
machine.
IMPORTANT
DO NOT take out the standard paper tray 
while paper is feeding from a lower paper 
tray as this will cause a paper jam.
 
Paper is jammed inside the machineC
aPull the paper tray completely out of the 
machine.
bUse both hands to slowly pull out the 
jammed paper.
 
cPress the front cover release button and 
open the front cover. 
 
dSlowly take out the drum unit and toner 
cartridge assembly. The jammed paper 
may be pulled out with the toner 
cartridge and drum unit assembly, or 
this may release the paper so you can 
pull it out of the paper tray opening.
 
IMPORTANT
We recommend that you place the drum 
unit and toner cartridge assembly on a 
clean, flat surface with a sheet of 
disposable paper or cloth underneath it in 
case you accidentally spill or scatter toner.
To prevent damage to the machine from 
static electricity, DO NOT touch the 
electrodes shown in the illustration.
 
 
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ePut the drum unit and toner cartridge 
assembly back in the machine.
 
fClose the front cover.
gPut the paper tray firmly back in the 
machine.
Paper is jammed inside the drum unit 
and toner cartridge assembly
C
aPress the front cover release button and 
open the front cover. 
 
bSlowly take out the drum unit and toner 
cartridge assembly.
 
IMPORTANT
We recommend that you place the drum 
unit and toner cartridge assembly on a 
clean, flat surface with a sheet of 
disposable paper or cloth underneath it in 
case you accidentally spill or scatter toner.
 
cPush down the blue lock lever and take 
the toner cartridge out of the drum unit. 
Take out the jammed paper if there is 
any inside the drum unit.
 
IMPORTANT
• Handle the toner cartridge carefully. If 
toner scatters on your hands or clothes, 
wipe or wash it off with cold water at once.
• To avoid print quality problems, DO NOT 
touch the shaded parts shown in the 
illustrations below.
 
 
dClear the jammed paper if there is any 
inside the drum unit.
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C
ePut the toner cartridge back into the 
drum unit until you hear it lock into place. 
If you put it in correctly, the blue lock 
lever will lift automatically. 
 
fPut the drum unit and toner cartridge 
assembly back in the machine.
 
gClose the front cover.
Paper is jammed at the back of the 
machine
C
aPress the front cover release button and 
open the front cover. 
 
bSlowly take out the drum unit and toner 
cartridge assembly.
 
IMPORTANT
We recommend that you place the drum 
unit and toner cartridge assembly on a 
clean, flat surface with a sheet of 
disposable paper or cloth underneath it in 
case you accidentally spill or scatter toner.
 
cOpen the back cover (back output tray).  
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dPull the tabs at the left and right hand 
sides toward you to open the fuser 
cover (1).
 
ePull the jammed paper out of the fuser 
unit.
 
fClose the fuser cover and back cover 
(back output tray).
gPut the drum unit and toner cartridge 
assembly back in the machine.
 
hClose the front cover.
Paper is jammed in the duplex trayC
aPull the duplex tray completely out of the 
machine.
 
bPull the jammed paper out of the 
machine or the duplex tray.
 
cPut the duplex tray back in the machine. 
1
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C
Routine maintenanceC
WARNING 
Use neutral detergents.
  
DO NOT use any flammable substances, 
spray or organic solvent/liquids containing 
alcohol/ammonia to clean the inside or 
outside of the machine. Doing this may 
cause a fire or electrical shock. (For more 
information see Important safety 
instructions on page 97.)
 
IMPORTANT
The drum unit contains toner, so handle it 
carefully. If toner scatters on your hands 
or clothes, wipe or wash it off with cold 
water at once.
 
Cleaning the outside of the 
machineC
aTurn off the machine. Unplug the 
telephone line cord first, disconnect all 
cables, and then unplug the power cord 
from the electrical socket.
bPull the paper tray completely out of the 
machine.
 
cWipe the outside of the machine with a 
dry, lint-free soft cloth to remove dust.
 
dRemove any paper that is in the paper 
tray.
eWipe the inside and the outside of the 
paper tray with a dry, lint-free soft cloth 
to remove dust.
 
fRe-load the paper and put the paper tray 
firmly back in the machine.
gPlug the machine’s power cord back into 
the electrical socket first, and reconnect 
all cables and telephone line cord. Turn 
on the machine.
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							138
Cleaning the scannerC
aTurn off the machine. Unplug the 
telephone line cord first, disconnect all 
cables and then unplug the power cord 
from the electrical socket.
bLift the document cover (1).
Clean the white plastic surface (2) and 
scanner glass (3) underneath it with a 
soft lint-free cloth moistened with water.
 
cIn the ADF unit, clean the white bar (1) 
and the scanner glass strip (2) 
underneath it with a soft lint-free cloth 
moistened with water.
 
dPlug the machine’s power cord back into 
the electrical socket first, and reconnect 
all cables and telephone line cord. Turn 
on the machine.
Note
In addition to cleaning the scanner glass 
and glass strip with a soft lint-free cloth 
moistened with water, run your finger tip 
over the glass to see if you can feel 
anything on it. If you feel dirt or debris, 
clean the glass again concentrating on 
that area. You may need to repeat the 
cleaning process three or four times. To 
test, make a copy after each cleaning.
 
Cleaning the laser scanner 
windowC
WARNING 
Use neutral detergents.
  
DO NOT use any flammable substances, 
spray or organic solvent/liquids containing 
alcohol/ammonia to clean the inside or 
outside of the machine. Doing this may 
cause a fire or electrical shock. For more 
information see Important safety 
instructions on page 97.
 
IMPORTANT
DO NOT touch the laser scanner window 
with your fingers.
 
aBefore you clean the inside of the 
machine, turn off the machine. Unplug 
the telephone line cord first, and then 
unplug the power cord from the 
electrical socket.
1
3
2
12
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C
bOpen the front cover and slowly take out 
the drum unit and toner cartridge 
assembly.
 
CAUTION 
HOT SURFACE
After you have just used the machine, some 
internal parts of the machine will be 
extremely hot. To prevent injury, when you 
open the front or back cover (back output 
tray) of the machine DO NOT touch the 
shaded parts shown in the illustration. If you 
do this you may get burned.
 
 
IMPORTANT
• To prevent damage to the machine 
caused by static electricity, DO NOT touch 
the electrodes shown in the illustration.
 
• We recommend that you place the drum 
unit on a clean, flat surface with a sheet of 
disposable paper or cloth underneath it in 
case you accidentally spill or scatter toner.
 
cWipe the laser scanner window (1) by 
wiping it with a dry lint-free soft cloth.
 
dPut the drum unit and toner cartridge 
assembly back in the machine.
 
eClose the front cover.
fPlug the machine’s power cord back into 
the electrical socket first, and then plug 
in the telephone line cord.Turn on the 
machine.
1
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Cleaning the corona wireC
If you have print quality problems, clean the 
corona wire as follows:
aTurn off the machine. Unplug the 
telephone line cord first, disconnect all 
cables, and then unplug the power cord 
from the electrical socket.
bOpen the front cover and slowly take out 
the drum unit and toner cartridge 
assembly.
 
IMPORTANT
• We recommend that you place the drum 
unit and toner cartridge assembly on a 
clean, flat surface with a sheet of 
disposable paper or cloth underneath it in 
case you accidentally spill or scatter toner.
• Handle the toner cartridge carefully. If 
toner scatters on your hands or clothes, 
wipe or wash it off with cold water at once.
• To prevent damage to the machine 
caused by static electricity, DO NOT touch 
the electrodes shown in the illustration.
 
 
cClean the corona wire inside the drum 
unit by gently sliding the blue tab from 
right to left and left to right several times.
 
Note
Be sure to return the blue tab to the home 
position (a) (1). If you do not, printed 
pages may have a vertical stripe.
 
dPut the drum unit and toner cartridge 
assembly back in the machine.
 
eClose the front cover.
1
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C
fPlug the machine’s power cord back into 
the electrical socket first, and then 
reconnect all cables and telephone line 
cord. Turn on the machine.
IMPORTANT
To avoid print quality problems, DO NOT 
touch the shaded parts shown in the 
illustrations below.
 
 
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