Ricoh MP C6502SP Field Service Manual page 1451

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PTR voltage is

set too low.

(Fluctuation of

the waveform

is too small.)

[A]: V (target)

[B]: V (low AC)

[C]: Risk of poor toner transfer

PTR transfer

current is set

too high and

shift to the

negative. As a

occurs at the

[A]: V (low DC)

[B]: Risk of electrical discharge

Troubleshooting for Uneven glossiness when feeding large size paper after small size

The glossiness is uneven at the left and right sides of the paper, along the paper feed direction

(outside the width of the small-sized paper types), when printing onto wide paper types after

making many prints onto narrow paper.

PTR voltage waveform (AC + DC)

Image Quality

Insufficient toner

Excess toner

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