Charge Corona - Ricoh B064 SERIES Service Manual

3.1.6 CHARGE CORONA

1. Clean the corona wires with a dry cloth. Do not use sandpaper or solvent.
2. Clean the charge corona casing with water first to remove NOx based
compounds. Then clean it with alcohol if any toner still remains on the casing.
3. Clean the end block with a blower brush first to remove toner and paper dust.
Then clean with alcohol if any toner still remains.
4. Do not touch the corona wires with bare hands. Oil stains from fingers may
cause uneven image density on copies.
5. Make sure that the wires are correctly positioned between the cleaner pads
and that there is no foreign material (iron filings, etc.) on the casing.
6. When installing new corona wires, do not bend or scratch the wire surface.
Doing so may cause uneven charge. Also be sure that the corona wires are
correctly positioned in the end blocks.
7. Clean the grid plate with a blower brush only (not with a dry cloth).
8. Do not touch the charge grid plate with bare hands. Also, do not bend the
charge grid plate or make any dent in it. Doing so may cause uneven charge.
3.1.7 DEVELOPMENT
1. Be careful not to nick or scratch the development roller.
2. Place the development unit on a sheet of paper after removing it from the
copier.
3. Never disassemble the development roller assembly. The position of the doctor
plate is set with special tools and instruments at the factory to ensure the
proper gap between the doctor blade and the development roller.
4. Clean the drive gears after removing used developer.
5. Dispose of used developer in accordance with local regulations.
6. Never load types of developer and toner into the development unit other than
specified for this model. Doing so will cause poor copy quality and toner
scattering.
7. Immediately after installing new developer, the TD sensor initial setting
procedure should be performed with SP2801 (TD Sensor Initialization) to avoid
damage to the copier. Do not perform the TD sensor initial setting with used
developer. Do not make any copies before doing the TD sensor initial setting.
8. When using a vacuum cleaner to clean the development unit casing, always
ground the casing with your fingers to avoid damaging the toner density sensor
with static electricity.
9. When replacing the TD sensor, replace the developer, then execute SP2801
(TD Sensor Initialization) and SP2962 (Adjustment of Drum Conditions).
SM
CÓPIA NÃO CONTROLADA
3-3
CÓPIA NÃO CONTROLADA
GENERAL CAUTIONS
B064 Series/B140 Series
/B246 Series/D052 Series