Toshiba e-STUDIO2500c Service Manual page 87
Multifunctional digital color systems
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Also See for e-STUDIO2500c:
- Operator's manual (414 pages) ,
- Scanning manual (156 pages) ,
- Colour manual (8 pages)
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About developer material
The developer material is comprised of a mixture of toner and carrier. The toner is charged to a
negative polarity and the carrier to a positive polarity, due to the friction with each other caused
by mixing.
Toner:
Mainly consists of resin and coloring.
Carrier: Consists of ferrite, and over its surface resin coating to provide consistent frictional
electrification.
Note:
If the developer material is used for a long period of time (beyond its normal life span), toner will become
caked onto the carrier.
↓
The performance of the carrier is lowered.
Result:
1. Image density is lowered.
2. Toner scattering occurs.
3. Background fogging occurs.
Solution: Replace the developer material.
May 2006 © TOSHIBA TEC
Carbon
( 5-10% )
6.8 µm
Resin ( 90-95% )
[ Toner ]
Fig. 3-13
Toner
Where toner is caked, no
frictional electrification
occurs.
Fig. 3-14
3 - 7
Ferrite
30-100 µm
[ Carrier ]
Carrier
e-STUDIO2500c/3500c/3510c COPY PROCESS
3
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