Service manual

5. Then the revolver must move the next color development section into
position. For Green, the next color is Yellow, and the revolver has to turn
180 degrees.
Even when copying on paper that is A4/LT sideways or shorter, there is
not enough time for the revolver to rotate the complete 180 degrees all in
one step before areas of the drum corresponding to an image area on
the belt arrive at the revolver position. Therefore, the revolver rotates 90
degrees, and waits until the non-image areas come around the next time
before rotating the other 90 degrees. This means that the belt has to
rotate one more time for 2C Green mode.
In addition, for paper longer than A4/LT sideways, another extra belt
rotation is needed for the same reasons explained for 2C Red/Blue mode.
6. Between copies of a multi-copy run, the revolver has to rotate 180
degrees to move the first color section back into position. The transfer
belt rotates once while this is done, so there is also a belt rotation
between copies.
4. 4C Mode
The revolver rotates 90 degrees between each color cycle. The process for
revolver and transfer belt rotation is the same as for 2C mode for Red or
Blue (except that the revolver only has to turn 90 degrees between copies of
a multi-copy run).
5. OHP/Thick Paper Mode
In OHP/thick paper mode, the drum speed changes to half after the last color
image is transferred to the transfer belt. After the drum speed is changed,
the transfer belt also rotates at half-speed. Then the machine waits for
transfer belt home position to align the image on the paper and to allow the
transfer belt speed to stabilize at half-speed. Half-speed is used for OHP or
thick paper after toner transfer because fusing temperature and pressure
have to be applied for a longer time.
Detailed
Section
Descriptions
TRANSFER BELT UNIT
SM 2-99 A166/A187/A189
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA