Konica Minolta bizhub 20p User Manual

							Routine Maintenance
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Cleaning6
Clean the outside and inside of the printer regularly with a dry, lint-free cloth. When you replace the toner 
cartridge or the drum unit, make sure that you clean the inside of the printer. If printed pages are stained with 
toner, clean the inside of the printer with a dry, lint-free cloth.
Cleaning the outside of the printer6
WARNING 
Use neutral detergents. Cleaning with volatile liquids such as thinner or benzine will damage the surface of 
the printer.
 
DO NOT use cleaning materials that contain ammonia.
 
DO NOT use cleaning materials that contain ammonia, alcohol, any type of spray, or any type of flammable 
substance to clean the outside or inside of the machine. Doing this may cause a fire or electrical shock.
 
aTurn off the printer power switch and then unplug the printer.
bPull the paper tray completely out of the printer.
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							Routine Maintenance
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cWipe the outside of the printer with a dry, lint-free cloth to remove dust.
dRemove anything that is stuck inside the paper tray.
eWipe the inside of the paper tray with a dry, lint-free cloth to remove dust.
fPut the paper tray back in the printer.
gPlug the printer back in, and then turn on the power switch.
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							Routine Maintenance
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Cleaning the inside of the printer6
aTurn off the printer power switch and then unplug the printer.
bPress the front cover release button and then open the front cover.
cTake out the drum unit and toner cartridge assembly.
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							Routine Maintenance
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CAUTION 
After you have just used the printer, some internal parts of the printer will be extremely hot. Wait for the 
printer to cool down before you touch the internal parts of the printer.
 
IMPORTANT
 
We recommend that you put the drum unit and toner cartridge assembly on a piece of disposable paper or 
cloth 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 printer caused by static electricity, DO NOT touch the electrodes shown in the 
illustration.
 
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							Routine Maintenance
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dWipe the scanner window with a dry, lint-free cloth.
ePut the drum unit and toner cartridge assembly back in the printer.
fClose the front cover.
gPlug the printer back in, and then turn on the power switch.
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							Routine Maintenance
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Cleaning the paper pick-up roller6
If the paper pick-up roller is stained, the printer may not feed paper. In that case, clean the paper pick-up roller 
as follows:
aTurn off the power switch and unplug the printer. 
bUnplug the power cord and interface cable from the printer. 
cPull the paper tray out of the printer. 
dDampen a soft cloth with lukewarm water and wipe the separator pad (1) in the paper tray with it.
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							Routine Maintenance
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eWipe the two paper pick-up rollers (1) inside the printer. 
fPut the paper tray back in the printer. 
gMake sure that you have turned off the power switch, and then connect the power cord and interface 
cable to the printer.
hPlug in the power cord and turn on the power switch of the printer.
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							Routine Maintenance
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Cleaning the corona wires6
Cleaning the corona wire6
If you have print quality problems, clean the corona wire as follows:
aPress the front cover release button and then open the front cover.
bTake out the drum unit and toner cartridge assembly.
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							Routine Maintenance
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IMPORTANT
 
We recommend that you put the drum unit and toner cartridge assembly on a piece of disposable paper or 
cloth in case you accidentally spill or scatter toner.
 To prevent damage to the printer caused by static electricity, DO NOT touch the electrodes shown in the 
illustration.
 
cClean the primary 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 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 printer. Close the front cover.
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7
Troubleshooting7
You can correct most problems by yourself. If you need additional help, visit us at http://konicaminolta.com/.
Identifying your problem7
First, check the following:7
„The AC power cord is connected properly and the printer is turned on.
„ All of the protective parts have been removed.
„ The toner cartridge and drum unit are installed properly.
„ The front and back covers are fully closed.
„ Paper is inserted properly in the paper tray.
„ The interface cable is securely connected to the printer and the computer.
„ The correct driver for the printer has been chosen and is installed.
„ The computer is set up to connect to the correct printer port.
Printer does not print:
7
If you did not solve your problem with the above c hecks, identify your problem and then go to the page 
suggested below.
„ Printer LED is blinking
See  LEDs (Light Emitting Diodes)  on page 71.
„ Status Monitor Error Message appears
See  Error messages in the Status Monitor  on page 111.
„ Paper handling
See  Paper handling  on page 114 and  Paper jams and how to clear them  on page 115.
„ Other problems
See  Other problems  on page 131.
Pages are printed, but there are problems with:
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„ Print quality
See  Improving the print quality  on page 124.
„ Printout is incorrect
See  Solving print problems  on page 130.
Troubleshooting7
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