Re: hp Color Laserjet 4550 transfer belt error

On Thu, 1 Dec 2005 19:26:44 +0000, Clint Sharp
<clint@xxxxxxxxxxxxxxxxxxxx> wrote:

>In message <5fcuo192dn81rejr1vg0ek6slqp8ru3v4j@xxxxxxx>, Andy Cuffe
><baltimora@xxxxxxx> writes
>>I have a hp color laserjet 4550 that displays "check transfer belt"
>>and refuses to print. It shows this error after warm up, but before
>>calibration. I tried the belt in another 4550 and it worked fine. I
>>confirmed that the belt is moving by noting the location of a mark on
>>the belt. Someone else has already looked at the printer and
>>supposedly replaced "everything" without fixing it. I'm the last
>>effort before it's scrapped. Has anyone seen this error before?

>Yes, check the connector the transfer belt mates into on the printer to
>make sure there isn't a scrap of paper jammed in it, quite a common
>fault.


The connector is fine. I've checked the signal coming from the
optical sensor and there is a pulse every time the registration hole
passes the sensor. I've tried running the engine test without the
formatter board installed and it also fails to print. I swapped the
DC controller from my working 4550 into it and the results are the
same. I have the service manual, but I've already checked everything
it suggests for this error.

Andy Cuffe

baltimora@xxxxxxx <-- Use this address until 12/31/2005

acuffe@xxxxxxxxx <-- Use this address after 12/31/2005
.