Ricoh CL7200 not printing color sc203-01 after printing

[tinfox]

A friend gave me this printer because someone traded it in and he is a Konica dude.

It prints in B&W fine. But throws, I forget, it was 203-01 or 230-01 when printing color or the demo fishy page.

It seems like there is no yellow getting printed.

I don't really care it I get this fixed, I was just curious as to what might cause this.

Also does this machine come with a Post script chip? This one did.

[Fearless V K]

SC 230 FGATE error
230-001: Y
230-002: M
230-003: C
230-004: K

•

The BCU generates the
FGATE signal based on the
registration sensor ON
timing. Then it sends the
signal to the LD units. The
LD units send a feedback
signal to the BCU. When the
LD units start emitting laser
beams, the feedback signal
changes from High to Low.

•

The SC code generates
when the BCU receives no
feedback signal (stays High)
from the LD unit 1 second
after paper reaches the
position where the laser
should start writing.

•

Poor connection
between BCU and LD
units

•

Defective BCU

•

Defective LD unit
1. Turn the main switch off and on.
2. Check the cables between the LD
units and the BCU.
3. Replace the laser optics-housing
unit.
4. Replace the BCU.