Ricoh DD 5450, Руководство по обслуживанию на месте, Страница: 132 / 403

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Chapter 3 Paper Feed Section
(4) Escaping the Guide Roller
About 40mm
After the press roller is pressed to the drum, the printing paper is gripped firmly with the drum and
press roller, the guide roller is released from the timing roller. This is called "escaped". Escape
timing is within a period when the printing paper is conveyed about 40 mm after it is gripped with
the drum and Press roller.
● If the timing is too late, the printing paper is gripped at two places for longer time, causing master
elongation and slippage.
● On the contrary, if the timing is too early, the printing paper is not gripped at all, resulting in
unstable. This causes creasing of paper and dispersion of the printing position.
Escape cam
Guide roller
Paper
Timing roller
About 40mm
Drum
Press roller
IMPORTANT
3