September 1997 © TOSHIBA CORP.
3 - 3
2460 SUPPLIES
3.4
Checking and Replacing Cleaning Felt Roller
(1)
Precautions for Handling
Never allow solvents such as thinner, etc, to adhere to the cleaning felt roller.
(2)
Poor Heat-Roller Cleaning and Countermeasures
Poor heat-roller cleaning should be judged by the deposited toner on the roller. When the felt roller
has heavy toner deposits, the heat-roller surface may be stained with toner. If this happens, replace
the cleaning felt roller.
The cleaning felt roller will be gradually degraded due to subjection to the heat from the heat roller
over a long period of time; therefore, replace it preferably after about 80,000 copies have been made.
3.5
Checking and Cleaning Upper and Lower Heat Rollers
(1)
Precautions for Handling
A Upper Heat Roller
1
Do not leave oil (fingerprints, etc.) on the heat roller.
2
Be extremely careful not to allow a hard object to hit on or rub against the roller because the
thin Teflon layer coated on the aluminum substrate is easily damaged and, if damaged, will
result in poor drum cleaning.
B Lower Pressure Roller
1
Do not leave oil (fingerprints, etc.) on the roller surface.
(2)
Checking
1
Check for staining and damage to the heat roller and clean or replace if necessary.
2
Clean the separation claws and check for chipped claws.
3
Check for cleaning condition of cleaning felt roller.
4
Check the thermistor for proper contact with the heat roller.
5
Check the fused condition of the toner image.
6
Check the heat rollers for proper rotation.
(3)
Cleaning Procedure for Heat Rollers
When the heat roller becomes dirty, it will cause paper jamming. In that case, wipe the roller surface
clean with cotton soaked in alcohol or heat-roller cleaner “RC60” which contains silicone oil. For a
better cleaning effect, clean the roller while it is still warm.
Notes: 1. Be careful not to rub against the Teflon-coated surface with fingernails or hard objects because it
is easily damaged. Do not use silicone oil on the upper heat roller.
2. When the heat roller has been replaced, 0 (zero) must be input to clear the power-on time counter
(mode “08”, code “402”) and the fuser running counter (mode “08”, code “403”).
