MP7502 sc220-00

[slimslob]

Attachment 50193
I replace the Laser unit box
server manual say do sp2115-001-005 but I can not find the lable on the LD unit (A)

The label is only present on a NEW laser unit from Ricoh parts.

[fuwei2422]

The label is only present on a NEW laser unit from Ricoh parts.

Now I have another mp7502 want to move LD unit to the show sc220-00 of mp7502 what can i do?

[slimslob]

[QUOTE=fuwei2422;1902861]Now I have another mp7502 want to move LD unit to the show sc220-00 of mp7502 what can i do?[/QUOTE

Just replace the polygon mirror motor. And possibly the polygon motor driver. Having swapped so many boards you might now also have 2 defective IPU boards as polygon motors have been known to take out the IPU.

[fuwei2422]

[QUOTE=slimslob;1902876]

Now I have another mp7502 want to move LD unit to the show sc220-00 of mp7502 what can i do?[/QUOTE

Just replace the polygon mirror motor. And possibly the polygon motor driver. Having swapped so many boards you might now also have 2 defective IPU boards as polygon motors have been known to take out the IPU.

as so IPU and polygon motor driver polygon motor must at same time

[slimslob]

[QUOTE=fuwei2422;1902892]

as so IPU and polygon motor driver polygon motor must at same time

Not always. A bad IPU usually will not take out the new motor. You could also have a bad cable from the IPU to the Polygon motor driver board.

[fuwei2422]

[QUOTE=slimslob;1902954]

Not always. A bad IPU usually will not take out the new motor. You could also have a bad cable from the IPU to the Polygon motor driver board.

cable from the IPU to the Polygon motor driver board replace .

[trc]

Also could be a Lens out of position

[luca72]

I have a MP7502 at power ON the diskplaer show sc220-00 so I replace the PSU、BCU、IPU、PFU、LSU unit、SBU unit and firmware 。now the machine sc220-00 boards is good ,because on aonther machine is working ,so I do not know why the machine

hello, be careful, during the replacing of the laser diode board, or especially the door switches, you may have inadvertently pulled the harness, (actually very short and pulled) and unclipped the small internal connector that goes from the diode, to the switches, to check it, (from the outside you can't see it) you have to remove the left plastic panel, (from the paper exit) and with a light check the gap between the frame with a flashlight, if so, you can either disassemble the whole scanner unit top, or as or discovered later, with a bit of manual dexterity, with a spring release and tweezers, reconnect the connector.

[fuwei2422]

I replace the LD、motor、IPU at a same time ,the sc220-00 is repair thanks very much