Solid Image Or Halftone Image Error - Ricoh D143 Field Service Manual

6. Troubleshooting
• Replace the toner bottle detection board (
• When replacing the toner bottle detection board, be sure not to deform the toner bottle detection
terminals. This error does not occur if the toner bottles are replaced correctly.

Solid Image or Halftone Image Error

The toner density of a solid image or halftone image may not be uniform ([A]: problem output, [B]:
normal output) if a large amount of sheets is printed at low coverage. If this occurs, follow the
countermeasure below.
Recovery Procedure
1. Enter the SP mode.
2. Set SP3-044-xxx (Toner Supply Type) to "1: PID (Vref Fixed)".
• Chose a target color SP number from -001 (Bk), -002 (Magenta), -003 (Cyan), and -004
(Yellow).
3. Set SP3-222-xxx (Vtref: Display/Set) to "4V".
• Chose a target color SP number from -001 (Bk), -002 (Magenta), -003 (Cyan), and -004
(Yellow).
4. Set SP2-109-003 (Test Pattern; Pattern Selection) to "23: Full Dot Pattern".
5. Set SP2-109-005 (Test Pattern; Color Selection) to "1: All Color (black)", "2: Magenta", "3:
Cyan", or "4: Yellow".
• Chose a target color selection number.
6. Press "Copy Window" on the LCD.
890
p.338).