
3: Operation
3-82
Colorwriter LSR 2000 Printer
Service Guide
OHP (Overhead projector) sheet detection
When an OHP sheet is used in this printer, the dedicated A4/letter
size OHP sheets must be used with a white band on the leading
edge. The following assumptions are made by measuring the period
of time the that light emitted from the paper top sensor (PS303) is
shielded by this band:
•
Whether it is the dedicated OHP sheet, other OHP, or paper.
•
Whether it is placed properly.
•
Whether it is placed with the proper edge leading.
If any non-dedicated OHP sheet is used or the dedicated OHP
sheet is placed with the wrong side up or the wrong edge leading,
the mechanical controller will notify the DC controller which will
detect a paper jam.
Figure 3-64
OHP sheet
White band
White band
(The white band disappears when
heated in the fixing process)
Feed direction