The SP-275 system, can be used to perform
a clean-up of excess carbon from your artwork - useful where solid/ bold
areas are present - to further prepare your artwork.
Flashing your design against Clean-Up
Paper removes excess/ ridges of carbon present on your design - ideal for
all laser prints.
Cleaning Up your
artwork in the SP-275
1. Turn on the SP-275 to a setting of 5 in
the PPC range
2. Cut out 2 pieces of Artwork Clean-Up
paper, slightly larger than your design area
3. Place the Clean-Up Paper down over the
SP-275 Stage Glass (both sides of the paper are the same)
4. Place your artwork over the paper, face
down, so as the paper covers ALL your design area.
NB: If your paper does not cover the design
area and the image the design, you risk burning the design into your Stage
Glass - avoid this at all costs. Place a piece of white paper over the design
if the Clean-Up Paper does not cover all areas.
5. Push the handle down to flash the
machine, lift handle and remove artwork/ paper
6. Gently peel the Clean-Up Paper off the
design
7. Repeat steps 3-6 on the second piece of
Clean-Up Paper
If the second piece removes a heavy load of
carbon this process can be repeated a third time.
The final setting for imaging your
artwork can vary as artwork type, temperature, humidity and RISO
ScreenMaster type all influence the imaging setting.
* The PPC range is a lower range than the
NON-PPC settings. 5 PPC is approx. 1 NON-PPC
Imaging photocopy designs using the a NON-PPC
setting is not outlined in the RISO Operation Manual, however testing in the
Australian environment has proven perfect results are attainable.
The following should be used as a guide only
for machine setting.
Photocopy & Hand Drawn
- Clean-Up twice @ 5 PPC - Image once @ 2 NON-PPC
Laser Print
- Clean-Up twice @ 5 PPC - Image once @ 1.5 NON-PPC Check if design requires
additional flash
RISO Artwork Book
- Image once @ 6 NON-PPC Check if design requires additional flash
How do I know if
the setting needs to be increased?
After you have imaged the design, look at
it. Before you peel back a corner, look at the entire design area - does
it look patchy, has all the film been exposed?
Peel back a corner - DO NOT REMOVE MORE
THAN HALF THE DESIGN - Look at the design, is it a clear image? - hold it
up to the light.
When the design area is not clearly imaged
[mesh strands visible in solid areas] maintain the same setting and image
again.
If there is still film to be exposed and
the design is clearly underexposed, increase the setting.
When using
the NON-PPC setting NEVER increase by more than 1 before flashing and
re-testing.
Once you settle into a routine of using a set
type of artwork in a controlled environment you will not normally be required
to alter your machines settings.