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How Long Does the Fan of Brother HL-660 Normally Run?

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Honghui Chen

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Aug 12, 1997, 3:00:00 AM8/12/97
to

I would like to know if there is anyone else on this
net owns a brother HL-660. I have purchased one in
April. I suspect that something is wrong with my
unit. The fan on my printer normally runs for around
20 more minutes after the printer goes into sleep
mode. This length of running time does not depend on
the amount of printing job, even after printing only
one regular page. Basically, whenever my printer
receives a job, the fan needs to run at least 25
minutes (5 minutes for it to be in sleep mode, 20
more minutes for the fan to stop).

I find this really annoying. I have seen some of HP
Laser printers and Apple Writers with sleep modes.
The fans on those models normally stops immediately
after light printing job. I have seeked help from
brother technical support. I am told that the fan
is normal because the interior of the printer needs
time to cool off. But 20 minutes for one page of
printing job seems to be too much for me!

Can someone tell me your experience with Brother
HL-660? I will appreciate your infomation.

Thanks a lot!


David

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Aug 12, 1997, 3:00:00 AM8/12/97
to

I think 20 minutes is an extremely long time for the fan to run. I have
had my HL-660 for over 2 years and it's fan will sometimes run for about 2
or 3 minutes after the printer goes to sleep. I assume you've checked the
setup properties sleep timer. You may also want to make sure nothing is
blocking the ventilation openings.

<dae...@ix.netcom.com>David<dae...@bigfoot.com>
"To live so that you would not be ashamed to sell the family parrot
to the town gossip, is to have lived well"--Anonymous Wise Person


Honghui Chen wrote in article <5sogm4$pj9$1...@solaris.cc.vt.edu>...

>I would like to know if there is anyone else on this

>net owns a brother HL-660. <snip>


Basically, whenever my printer
>receives a job, the fan needs to run at least 25
>minutes (5 minutes for it to be in sleep mode, 20
>more minutes for the fan to stop).
>

><snip, snip>

John Pierlot

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Aug 12, 1997, 3:00:00 AM8/12/97
to

20 minutes sounds nuts. Mine never runs that long even after a long (200
page) print job in mid-summer with no air conditioning and next to a
window with the afternoon sun beating in.

Has the fan always run this long, or has the time gradually increased?
If the latter, maybe the fan intake filter is plugged.

On the right hand side of the printer (looking at it from the output
tray), there's a dust filter for the fan intake. It's under a snap-off
cover. You could try taking the filter out and cleaning it. It's a
sponge thing, so you can wash it, running water through in reverse. Just
make sure it's good and dry before reinstalling it.

Note: there's what looks like a filter cover on the left side too, but
that's just a dummy, for symmetry or something. The real thing is on the
right side. Just press gently on the top edge of the cover and it'll
snap away. Then remove the filter for cleaning. (I've noticed that
recently new toner cartridges are supplied with a new filter and
instructions for replacement.)

If the problem has persisted since you bought the printer, it might be a
faulty EPROM. If that's the case, you need a technician.

Hope this helps,

John
s05...@aix1.uottawa.ca

Honghui Chen (hc...@vt.edu) wrote:
: I would like to know if there is anyone else on this
: net owns a brother HL-660. I have purchased one in

: April. I suspect that something is wrong with my
: unit. The fan on my printer normally runs for around

: 20 more minutes after the printer goes into sleep

: mode. This length of running time does not depend on
: the amount of printing job, even after printing only

: one regular page. Basically, whenever my printer

: receives a job, the fan needs to run at least 25
: minutes (5 minutes for it to be in sleep mode, 20
: more minutes for the fan to stop).

: I find this really annoying. I have seen some of HP

: Laser printers and Apple Writers with sleep modes.
: The fans on those models normally stops immediately
: after light printing job. I have seeked help from
: brother technical support. I am told that the fan
: is normal because the interior of the printer needs
: time to cool off. But 20 minutes for one page of
: printing job seems to be too much for me!

: Can someone tell me your experience with Brother

: HL-660? I will appreciate your infomation.

: Thanks a lot!

:


Honghui Chen

unread,
Aug 15, 1997, 3:00:00 AM8/15/97
to

I would like to thank John and David for their reply. The cooling time required by my printer
does not depend on the amount of job, nor does it depend on the length of sleep time I set. The
program of my printer came the day I bought it. In fact, I have sent the printer twice for
repairment, once to an authorized repair center, and once to the Brother Technical Support
Center. Brother Printer Support says that there is nothing wrong with my printer. They told me
that they checked all the specifications. I am also told that 15-20 minutes of cooling time is
normal. However, information provided by David and John reinforced my suspicion, my printer is
not normal. I would not say that they did not try to fix the problem. Still, I am quite
dissapointed and frustrated. I do not know what to do. Anyone has any suggestion?

In article <5sogm4$pj9$1...@solaris.cc.vt.edu>, hc...@vt.edu says...


>
>I would like to know if there is anyone else on this
>net owns a brother HL-660. I have purchased one in
>April. I suspect that something is wrong with my
>unit. The fan on my printer normally runs for around
>20 more minutes after the printer goes into sleep
>mode. This length of running time does not depend on
>the amount of printing job, even after printing only
>one regular page. Basically, whenever my printer
>receives a job, the fan needs to run at least 25
>minutes (5 minutes for it to be in sleep mode, 20
>more minutes for the fan to stop).
>

Howard Roberts

unread,
Aug 15, 1997, 3:00:00 AM8/15/97
to

There was a problem with HL-660s sometimes where the fan ran for too
long. It's quite a job to fix it. It requires a new fan, a new main
board, a new driver pcb (the one that runs the printer's motors) and the
latest firmware fitted to the main board.

Once the new parts are fitted, the printer would also need the main
board's NV RAM reprogrammed to initialise it for the correct scanner
(Copal or Matsushita) that Brother used and the correct number of
solendoids (one or two). I believe this is a job that only a Brother
workshop can do and that standard authorised service dealers aren't able
to do it.

--
Howard
e-mail: How...@vocks.demon.co.uk, remove "x" from header to reply

http://www.vocks.demon.co.uk/ - Jokes, rude and otherwise

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