Ricoh BR-C1a Basic Service Training page 169

 Be careful when operating the machine with the
rear controller box open:
 This machine has many fans and ventilation
 If you service the machine and then check
 Normally, process control can handle such minor
Slide 169
No additional notes
Cautions
Controller Box
ducts to expel ozone, paper dust, and hot air from
around the PCDU and other areas inside the
machine.
printing operation with the rear controller box
open, dust or gases may adhere to the drum and
cause problems with image output (white block
patterns for example).
problems, but if you want to recover the print
quality as soon as possible, print several sheets
with solid images.
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BR-C1 Training