mpc 4500 - sc code 443

[andrewdecruz]

hi fellow techs,
i got a machine mpc 4500 throwing out sc code 443. i tried replacing the whole transfer unit but the problem still shows sc443. Any help is greatly apporeciated...thanks in advance

[TonerMunkeh]

Did you replace the unit with a brand new one, part number B223 6034 or one from another machine? Apparently a new transfer unit was released with added "ribs" to stop the PCU's touching the encoder board and causing this SC.

Also, from Goose Guide:

SC 443	Image transfer unit error - set transfer unit correctly
SC 443	Image transfer unit error - check CN223-1 for 5vdc sensor opertion, replace IOB if OK
SC 443	Image transfer unit error - check for binds in belt rotation
SC 443	Image transfer unit error - replace transfer unit assembly (bad sensor)
SC 443	Image transfer unit error - replace ITB unit-TB #28

[meldwo]

replace the transfer belt motor

[sandmanmac]

replace the transfer belt motor

I'm sure after 2 + years he's likely found a solution

[Zaxxon]

I'm sure after 2 + years he's likely found a solution

You'll never know, perhaps he is thinking "finally"

[bob marley]

It could be a defective encoder sensor or defective image transfer unit motor