Paper Size Control; Paper Pick Auto-Select; Toner Control - Xerox Phaser 3500 Service Manual

Paper Size Control

The paper size selection for Tray 2 and Tray 3 is set by moving the paper guide in the tray.
This in turn sets the plastic "fingers" on the side of the paper tray to a specific postion.The
position of the "fingers" activates the correct combination of the three paper size switches,
located in each paper tray slot, for the selected paper size. Additionally, the back of the tray
must be pulled down in order to select the two largest sizes; US Folio and Legal. Not all sizes
can be used in both trays. See
listing of the media types for each tray. Additional media types can be used in Tray 1 (MPT).
After inserting the media in Tray 1, use the Control Panel controls to select the media type.
Paper Size Switches are identified as SW1, SW2, and SW3
Paper Size
LEGAL 14"
US FOLIO (LEGAL 13")
A4
LETTER
EXECUTIVE
B5
B5, JIS-B5
A5
No Tray

Paper Pick Auto-Select

The default paper pick selection at power ON is Tray 2, Auto-Select ON is also default. If the
default tray is empty, the printer will automatically switch to any other tray that contains paper
unless Auto-Select is set to OFF.

Toner Control

Print Cartridge installation and Toner Level are detected by the Print Cartridge Interconnect
Board and the associated signals are supplied to the Main Board. The CRUM not only detects
cartridge presence, it also determines whether it is a genuine Xerox cartridge. When the toner
remaining falls to 15%, the printer displays a low toner message on the Control Panel display.
Media and Tray Specifications
Paper Size Switch
SW1 SW2
ON ON
OFF OFF
OFF ON
ON OFF
OFF ON
ON OFF
OFF OFF
ON ON
OFF OFF
Phaser® 3500 Laser Printer Service Manual
8-12
Theory of Operation
on page 6-9 for a complete
SW3
OFF
OFF
ON
OFF
OFF
OFF
ON
ON
OFF