Riso HC5500 Series Reference Manual page 24

Let's Start Printing
Duplex Printing = [Switch Back] + [Stackless] System
By default, the HC5500 can do duplex printing* in any size
varying from postcards to A3W (ledger) (46g/m
The printer uses the "switch back" method that consists of
printing the front page first, reversing the paper and then
printing the back page. This method tries to alleviate the
burden suffered by the paper and carefully considers the
size of the body. Furthermore, in order to take advantage of
high speed, the "stackless" method is used. Soon after
printing the front page and reversing the paper, the sheet
passes through the back of the print head. This mechanism
permits efficient duplex printing without losing speed.
After printing the front page of the sheet, it passes through
the vertical paper feeder and is turned over at the Switch
Back Paper Guide.
The reversed sheet enters the space between the sheets
fed by the feed trays and then passes under the print head
again.
The front and back pages are printed alternately. The back
page is printed according to the print unit specified by the
printer driver command, and the sheet is output to the
stacking tray.
*Except envelopes and special paper
Printing envelops
- The [Paper Size Entry] is necessary for printing envelopes.
The size (length) of the envelope to be registered must include
its flap.
Differently from the case of usual paper, the Maximum Print
Area (Image Area) corresponds to the registered value sub-
tracted by a margin of 10mm (
- Load the envelope on the Standard Paper Feed Tray with the
flap on the left side.
- Some types of envelopes cannot be used for printing.
Example: windowed envelopes
For details, contact your local dealer (or sales representative).
Be careful not to let the data be printed
beyond the flap of the envelope.
When the dashed area of the figure is
covered with the data to be printed, the
transportation belt inside the HC5500
gets soiled and may cause malfunction.
US/UK-22
2
- 210g/m
3
/ ").
8
10mm
2
).
Switch Back
Paper
Width
(Vertical)
10mm
10mm
Paper feed
direction
10mm
10mm
Vertical
Paper feeder
Print head
Paper
Paper
Paper: Front side
Paper: Back side
Length (Horizontal)
10mm
Print area
10mm
10mm