Printing Notes - Ricoh DDP70E-92 User Manual

Printing Notes

Paper jams (e.g. E134) may occur at the Switch Back Station, when using thick
(stiff) paper.
Banding may occur when printing half tones. This happens when paper enters the
fuser unit or exits the regist rollers.
Print position may gradually shift backward on the page when printing on thick
paper.
Multiple paper feed may occur if you are using paper that does not meet
specifications.
Paper jams (E118, E119, E128, E134, etc.), stacker jams, poor stacking accuracy
and poor staple accuracy may occur on paper with too much curl.
Print start position may change based on paper size and weight.
Print density may degrade when printing more than 30% print coverage.
Stacking accuracy may degrade when printing thin long paper.
The paper exit rollers on the Finisher may quickly become contaminated when
printing outside of the printable area.
Print density may darken after replacing the developer mix.
Scratches may occur if the OPC Drum is touched.
To avoid paper jams, print speed is reduced when printing with tray combinations.
Perform a test print to check print quality prior to starting daily print jobs and prior
to starting jobs requiring high print quality.
Continuous half-tone or solid black printing may cause print quality degradation.
Frequent high black-to-white ratio and high-density printing can cause print quality
to degrade. Check the print quality periodically and clean the inside of the printer.
A high black-to-white ratio on duplex print jobs can cause paper to stick to the
finisher. To avoid this problem, remove paper from the finisher stack frequently or
lower the print density.
Print density may be high for several thousand pages after powering on the printer.
If this is the case, set the print density to "Light" for several thousand pages, then
return the print density to "Medium".
Print density may be gradually decreased by continuous low-density printing. Print
several hundred pages of a half-tone pattern to increase print density.
After continuous printing of thick paper, the first sheet of a new print job may pick
up dirt from the fuser unit. Run a cross-pattern test print to remove dirt.
Print speed is decreased when paper thickness continuously alternates.
Troubleshooting 5-7