Ricoh A229 Service Manual page 590

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SUBJECT: BLACK COPIES
SYMPTOM:
Black copies are generated without a service code being generated. The copier stops operating with the
message "Please wait" appearing in the display. If the condition persists, the SBICU board, Xenon Lamp
Board and the two Lamp Regulators may become damaged.
CAUSE:
The Lower Insulating Sheet (P/N A2291806) is not installed (See Figure A below). As the insulation on the
Xenon Lamp Flexible Board (Ribbon Cable) (P/N A2295463) becomes worn, it will eventually short to the
metal frame if the Lower Insulating Sheet is not installed.
SOLUTION:
At the next service call, check that the Lower Insulating Sheet is installed on the top left rear of the Optics
Frame. If it is not installed, as a temporary solution, put an insulating tape or mylar under the Ribbon Cable
of the Xenon Lamp Flexible Board. Install a new Lower Insulating Sheet at the following visit. Please
contact the TSD Hotline if the sheet is missing.
REFERENCE
PART NUMBER. DESCRIPTION QTY PAGE ITEM
A2291806 Lower Insulating Sheet 1 47 14
NOTE: Please be advised that a limited quantity of A229's may exhibit black copies.
RICOH GROUP COMPANIES CONTROL NO. 346