When using B4 or larger paper, paper that bends easily, or paper with its grain direction perpendicular to the paper feed direction, the sheet may become curled, resulting in premature full detection by the proof full detection sensor.
This can be solved by attaching the proof support tray [B] on the proof tray [A].
The problem that may occur after attaching this support tray:
When printing A4, LT or smaller paper with the support tray, the machine stacks only 200 sheets, which is less than the standard specification of 250 sheets.
When printing B4, LG or larger paper with the support tray, the machine stacks 50 sheets, which is the same as the standard specification.