Setting Up
Chapter 2 Setting Up 2-43
LASER CLASS 3170 Series.
CFYA/YAH/YAN 120v US V1.0
Using the MP Tray
The MP (multi-purpose) tray can hold letter-, legal- or A4-size paper. The
capacity is approximately 100 sheets of cut-sheet paper (80 g/m2 or 21
lbs.). To use the MP tray as one of the input trays, you need to set USE
MP TRAY to ON in the FAX’S PRINTER SET menu. (➞2-48)
To use the MP tray with the LASER CLASS® 3170MS or the LASER
CLASS® 3170/3175 with the Printer Board I installed, follow the guide-
lines below. Otherwise, the paper-size-matching error occurs and the
message “CHECK PAPER SIZE” appears on the display.
❏Even when you use the MP tray for the fax function, it is necessary to
set the same paper size on the printer menus as on the fax menus.
For details about setting the paper size of the MP tray on the printer
menus, refer to “Printing from the Multi-Purpose Tray” in the Printer
User’s Guide.
❏If you use the MP tray for the printer function and load paper of
sizes other than letter, legal or A4, it is necessary to set USE MP
TRAY to OFF on the FAX’S PRINTER SET menu. (➞2-49)
The sizes and kinds of print media you can set on the MP tray differ
when you use it as an input tray for the printer function. For details on
the print media specifications for the printer function, refer to the “Print
Media Specifications” section in Appendix 4 of the Printer User’s Guide.
When not in use, the tray can fold up into the fax unit.

Loading the MP Tray

Before you load the paper, follow these general guidelines:
❏For high-quality printings, we recommend using Canon standard 17-
24 lb.(64-90g/m2) weight paper.
❏Use of print media not meeting the paper’s requirements may cause
severe paper jams or result in excessive mechanical wear of the fax.
❏Do not use the following paper in the MP tray:
–Moist paper
–Paper that is wavy, curled or damaged
–Folded, clipped or stapled paper
–Paper with cut-outs or perforations (not recommended)
–Paper containing materials that melt, vaporize, offset, discolor or
emit dangerous fumes at a temperature of 374°F (190°C) or higher