Ricoh Aficio BP20N, Service Manual

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TONER CARTRIDGE
SM 4-25 G144/G145
Trouble-
shooting
4.9.3 TONER CARTRIDGE DETAILS
Description Signs Cause and Check and Solution
Light image/partially
blank image
(cartridge has
reached end of life) •
Printed image is
light, dirty, or not
clear.
•
Parts of the image
are not printed.
• A ‘tick-tick’ noise is
periodically heard
within the machine.
1. If the image is light, shake the toner
cartridge and try to print again. If the
problem persists, the cartridge has
reached end of life. Replace the toner
cartridge.
2. Shake the toner cartridge, if some parts of
the image do not get printed. If the
problem persists, clean the LSU window
and try to print again. If the problem still
persists, the cartridge has reached end of
life.
3. Measure the time between ‘ticks’, if you
hear this sound. If the time interval is
about 2 seconds, the toner has almost
reached end of life. Replace the toner
cartridge.
4.
Shake the toner cartridge, if white vertical
bands show, and try to print again. If the
problem persists, the cartridge has
reached end of life. Replace the toner
cartridge.
Toner contamination
• Toner
contamination is
visible at regular
intervals on the
output print.
•
Toner
contamination is
visible at random
intervals over the
whole, or parts, of
the output print.
1. Contamination at regular intervals
• A) Check the distance between
contamination marks.
•
B) Check both ends of the toner
cartridge OPC drum. If both ends are
contaminated with toner, the waste
toner collector is full.
2. Random page contamination.
• A) Ensure that the terminal contact
points of the toner cartridge are clean.
Clean all HV contacts if they are dirty.
Replace the toner cartridge if the
problem persists.
•
B) Ensure that the terminal contact
points of the toner cartridge are not
damaged. Replace the toner cartridge if
there is damage to the contact
terminals.