Path: utzoo!mnetor!uunet!husc6!uwvax!dogie!uwmcsd1!ig!agate!ucbvax!rainy.atmos.washington.EDU!harry
From: harry@rainy.atmos.washington.EDU (Harry Edmon)
Newsgroups: comp.laser-printers
Subject: Re: OPC belt degradation
Message-ID: <8803151527.AA20361@brillig.umd.edu>
Date: 7 Mar 88 16:26:49 GMT
References: <8803041924.AA15159@brillig.umd.edu>
Sender: usenet@ucbvax.BERKELEY.EDU
Organization: Dept. of Atmospheric Sciences, U. of Washington
Lines: 18
Summary: You can get more life out of your OPC
Approved: laser-lovers@brillig.umd.edu


We have a similar problem with the OPC on our TI2115, sometimes after as
little as 5,000 copies.  We then see a faded area about 1/4 of the way
from the bottom of the sheet.  At the suggestion of our TI service rep,
we put in a new OPC and saved the old OPC in the black plastic wrap with
the plastic clips on the roller to remove the tension from the belt.
When the new OPC develops a faded spot (usually after a month), we then
put in the old OPC.  Lo and behold, the faded spot has disappeared.
TI theorizes that the belt builds up an electrical charge over time,
causing the faded spot.  When removed from the printer, this charge
slowly disappears, and with it the faded spot.  TI is currently gathering
information on the behavior of OPC belts, but all knowledge so far is
empirical in nature.
-- 
Harry Edmon                   UUCP:   harry@rainy.atmos.washington.edu or
(206) 543-0547                        uw-beaver!geops!rainy!harry
Department of Atmospheric Sciences
University of Washington        BITNET: HARRY@UWARITA