Transparencies

[Wendy]

I am investigating the printing facilities within a large department. We
will be requiring something that allows for high volumes periodically. It
also needs to do colour printing onto both paper and overhead projector
transparencies and be networked for the whole departments use.
Could anyone suggest printers, either laser or inkjet, that have performed
well using transparencies for OHP's?
We have found that our HP color laserjet 4500 has melted transparencies
(designed for inkjets, user error, what else!), or it doesn't respond well
to certain makes of transparencies. Obtaining this kind of data from
companies is proving difficult.
What have been other peoples good or bad experiences?

Wendy

 

[jbuch]

I am investigating the printing facilities within a large department. We
will be requiring something that allows for high volumes periodically. It
also needs to do colour printing onto both paper and overhead projector
transparencies and be networked for the whole departments use.
Could anyone suggest printers, either laser or inkjet, that have performed
well using transparencies for OHP's?
We have found that our HP color laserjet 4500 has melted transparencies
(designed for inkjets, user error, what else!), or it doesn't respond well
to certain makes of transparencies. Obtaining this kind of data from
companies is proving difficult.
What have been other peoples good or bad experiences?

Wendy

Yes, you can melt transparencies. Not all transparent plastics are
"equal". There is no Political Correctness in melting points.

Besides melting points to mess things up, some printers are designed to
have an opaque edge, like paper, to start certain electronic technical
things that happen in the printer.

For example, the optical electronic detector for the paper edge may
require an opaque plastic strip because the electronic edge detector
operates in the visible wavelengths.

On the other hand, an electronic edge detector based on infared
technology will often not need an opaque strip on the edge because in
the invisible infared, the transparency is opaque.

OPAQUE STRIP..... is important too.

You can look on the box of transparencies and often see a list of
printer manufacturers that the transparencies are compatible with. This
means usually both the melting point and the need for an opaque edge
strip or not.

When a manufacturer uses a certain kind of edge detector in one printer,
he will tend to use it in all of his printers.... It is easier for him
to manage his products that way.

Read the ------ box instructions. Or ask the manufacturer of the
transparency what it will work in. Be sure to find somebody competent.
You might ask them why some printers need the opaque strip and some
don't. If you don't get a clear crisp answer, go get somebody else who
knows what they are doing. If they read it to you off the box, that
probably (as Martha Stewart would say) "Is A Good Thing".

Jim Buch

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