Epson® ActionLaserII Toner Unit Remanufacturing Instructions…
Epson® ActionLaser II Toner Unit
Reference Information:
OEM PN: S050002
OEM Yield: 5,000 (5% image area)
Recommended Tools:
Phillips head screwdriver
Small flathead screwdriver
Hot melt glue gun or RV silicone adhesive
Approximate Remanufacturing Time:
15 min.
Operational Theory (Figure 1):
The printer uses an electro-photographic process. A uniform negative charge
is applied to the OPC belt by the main charger. The negative charge dissipates
where the laser beam is exposed to the OPC belt surface. As a result, a latent
image is retained on the OPC belt surface. A doctor blade in the toner cartridge
limits the amount of toner applied to the developer roller. As the developer roller
comes in contact with the OPC belt, the negatively charged toner is attracted to
Figure 1
electrostatic latent image. This attraction occurs due to the low surface potential
of the exposed areas on the OPC belt in comparison to the unexposed areas.
This process makes latent image visible. The transfer charger applies a high
uniform charge to the back-side of the paper. As the paper passes between the
OPC belt and the transfer charger, the negatively charged toner particles are
attracted to the paper. After transfer, a quenching LED neutralizes the OPC belt surface
potential. Additionally, the cleaning blade scrapes the unused toner from the OPC belt
where it is collected in the unused toner compartment by the toner collection
spring. It drops into the toner cartridge through the toner collection hole and is
transported into the toner cartridge’s unused toner tank. The toner image on the
paper then passes between the hot roller and pressure roller to fuse the toner to
the paper surface.
Figure 2
The message “TONER LOW” appears on the LCD to warn the user that a low
toner condition exists and 20 more prints can be made before the printer will no
longer print. The message “TONER OUT” appears on the LCD to inform the user
that the toner cartridge must be replaced.
Instructions:
1. Remove the drain hole cover on the unused toner tank (Fig. 2). Open the
toner collection shutter and vacuum the waster toner.
Figure 3
2. Replace drain hole cover (using hot melt glue gun or RV silicone adhesive).
3. Flip the developer cover back (Fig. 3) and remove the two (2) screws hold-
ing the development roller. Lift the roller from the toner cartridge.
4. Clean the toner hopper through the opening of the development roller. Be
sure to remove all old toner. Also, be careful not to damage the quenching
brush or doctor blade.
5. Fill the toner hopper with toner through the opening of the development roller.
Spin the toner agitator to move the toner into the toner hopper.
6. Install the development roller (2 screws) into the toner cartridge. Flip the
developer cover closed.
Figure 4
7. Remove the clear, shield lens (located near the main charger). Clean the lens
of all toner. This will prevent hazy background prints.
8. Install clear shield lens.
Oasis Imaging Products, Inc. Technical Support: (800) 322-8992 ext 110
(118 pages)
(3 pages)
(4 pages)
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