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Table 5-5. Print media and feed speeds
Print mode Medium type Feed speed
Normal Plain paper Normal
OHT OHT one-quarter speed
Thick 1 Thick paper half-speed
Thick 2 Thick paper half-speed
Gloss 1 Gloss paper half-speed
Gloss 2 Gloss paper one-third speed
Gloss film Gloss film one-third speed
Envelope Envelope Normal
Thin paper Thin paper Normal
Label Label half-speed
Auto Plain paper/OHT ---
The printer can detect the type of media (see Media detection on the following page).
The DC controller controls the print mode as follows according to the selected print mode, if
the selected print mode does not agree with the detected media. The types of media that the
printer can detect are plain paper, gloss paper, gloss film, and OHT (overhead
transparency). The printer can not identify envelope, thick paper, thin paper, or label. They
are judged as normal paper.
When the selected print mode is either normal paper, envelope, thick paper, label, or auto,
the mode remains unchanged.
● When in OHT print mode: If plain paper, gloss paper, or gloss film is detected, the DC
controller judges it media mismatch. When judged as a mismatch, the DC controller
sends the error message to the formatter, cuts off the secondary transfer bias, delivers
the paper, and stops the printer engine. The DC controller lets printing process continue
under the OHT mode only when an OHT is detected. The same applies to the following
pages in continuous printing.
● When in AUTO print mode: If a plain paper, gloss paper, gloss film or OHT is detected,
the DC controller selects and switches the print mode to the appropriate one (gloss
paper, gloss film, or OHT mode) and continues printing. When auto mode is selected,
the printer starts at a normal mode. In continuous printing, the print mode remains
unchanged from the one selected for the first page, unless it detects a media different
from the first page, when it judges it media discrepancy.
● When in OTHER print modes than the above two: If a plain paper, gloss paper, or gloss
film is detected, the DC controller lets the printing process continue without changing the
selected print mode. If an OHT is detected, the DC controller judges it media
discrepancy. The same applies to the following pages in continuous printing.
Skew control mechanism
The skew control, which corrects the position of paper fed askew, is controlled by the
registration shutter.
The skew control performs the following sequence of tasks. (See
Figure 5-60. Skew control
mechanism.)
ENWW Pickup/feed system 187