Ricoh J-P3 Service Manual page 119

20 February 2004
2801 [PA Roller Cur.] Paper Attraction Roller Current
([Color], Simplex or Duplex, Process Speed): Current Adjustment
(Paper or By-pass): Paper Size Correction
Adjusts the paper attraction roller current for color printing.
If paper misfeeds occur at the transfer unit in color mode, check and/or adjust the
paper attraction roller current.
NOTE: The magenta development section is close to the paper attraction roller.
Decreasing the current may not cause paper misfeed.
If the current is increased too much, the following image problems may occur
depending on the humidity.
High humidity:
Insufficient image transfer in magenta due to current flow to the magenta OPC drum
Low humidity:
Offset image in magenta halftone areas due to paper charged positive too much
When adjusting the current with this SP mode, the value should be lower than
transfer current.
2801 006 [FC] S: L
2801 007 [FC] S: M
2801 008 [FC] D: L
2801 009 [FC] D: M
2801 014 [K] B TH S
2801 015 [FC] B TH S
2801 016 [K] B OHP
2801 017 [FC] B OHP
2801 018 [K] B TH D
2801 019 [FC] B TH D
2801 020 [K] SP S
2801 021 [K] SP D
2801 022 [FC] SP S: L
2801 023 [FC] SP S: M
2801 024 [FC] SP D: L
2801 025 [FC] SP D: M
2801 026 [K] S: L
2801 027 [K] S: M
2801 028 [K] S: H
2801 029 [K] D: L
2801 030 [K] D: M
2801 031 [K] D: H
2801 032 [K] SP S: L
2801 033 [K] SP S: M
2801 034 [K] SP S: H
2801 035 [K] SP D: L
2801 036 [K] SP D: M
2801 037 [K] SP D: H
2802 [PA Cur. Size] Paper Attraction Roller Current - Paper Size Correction
Paper Type -> N: Normal, TH: Thick, OHP
Adjusts the correction, depending on the paper size.
When small-width paper is used for printing, the paper attraction roller current flows
to the non-image areas of OPC drum where the transfer belt touches the drum. This
may cause paper misfeed due to insufficient current.
To increase the current by 1.5 times, set the SP mode to "15".
NOTE: Adjust only when a paper misfeed occurs with a small paper size. Increasing
the current too much may cause image offset in magenta halftone areas.
2802 001 N LT SEF
*BCU [0 to 50 / 1 / 1 µA/step]
*BCU [0 to 50 / 1 / 1 µA/step]
*BCU [0 to 50 / 5 / 1 µA/step]
*BCU [0 to 50 / 10 / 1 µA/step]
*BCU [10 to 30 / 5 / 0.1/step]
*BCU [10 to 30 / 1 / 0.1/step]
*BCU [10 to 30 / 5 / 0.1/step]
*BCU [10 to 30 / 1 / 0.1/step]
*BCU [10 to 30 / 5 / 0.1/step]
*BCU [10 to 30 / 1 / 0.1/step]
*BCU [10 to 30 / 8 / 0.1/step]
*BCU [10 to 30 / 12 / 0.1/step]
*BCU [10 to 30 / 1 / 0.1/step]
*BCU [10 to 30 / 1 / 0.1/step]
*BCU [10 to 30 / 1 / 0.1/step]
*BCU [10 to 30 / 1 / 0.1/step]
*BCU [0 to 50 / 5 / 1 µA/step]
*BCU [0 to 50 / 8 / 1 µA/step]
*BCU [0 to 50 / 8 / 1 µA/step]
*BCU [0 to 50 / 5 / 1 µA/step]
*BCU [0 to 50 / 8 / 1 µA/step]
*BCU [0 to 50 / 8 / 1 µA/step]
*BCU [0 to 50 / 5 / 1 µA/step]
*BCU [0 to 50 / 8 / 1 µA/step]
*BCU [0 to 50 / 8 / 1 µA/step]
*BCU [0 to 50 / 5 / 1 µA/step]
*BCU [0 to 50 / 8 / 1 µA/step]
*BCU [0 to 50 / 8 / 1 µA/step]
*BCU [10 to 40 / 15 / 0.1/step]
5-23
ENGINE SERVICE MODE