Ricoh M199, Service Manual

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Laser Unit
M199/M200/M203/M204 3-28 SM
After replacing the laser optics housing unit
1. Open the front cover and turn on the machine.

Do the following 2 steps with the front cover of the machine open.
1. On the LCD, access “LSU Adjustment” inside the “Engine Maintenance” menu.
2. Manually input the corresponding LSU data from your supervisor into the space
provided on the LCD.
2. Close the front cover.
3. Perform “Color Registration” in the “Engine Maintenance” menu.
4. Turn the power off and on.

MUSIC will be performed automatically.
5. Print out the test chart, and make sure that MUSIC was performed successfully (see
‘Printing out the Test Chart” and ‘Checking that MUSIC was Performed Correctly’
below).
6. If necessary, adjust the registration settings for each tray and for the front and rear
sides of the paper with the "Engine Maintenance" menu.

When the MUSIC error persists, contact your supervisor, and get a set of LD
parameters for the unit. After that, enter them with “LSU Adjustment” in the
Maintenance Mode Menu (“If MUSIC has not been performed successfully” below).