HP (Hewlett-Packard) 9055 Printer User Manual


 
76 MFP unit explanation ENWW
*2 Paper size detection
Length: When paper pushes the paper
size detection actuator, the paper size
PS/2-1/2-2 (PS6/PS12) and the paper
size PS/1-1/1-2 (PS5/PS11) turn on.
Thus, the paper size is automatically
determined according to the
combination of the on/off states of these
PSs.
Width: When the side guides of the tray
are slid, the rack gear of the side guide
(front) turns the paper size VR/1/2 gear.
Thus, the paper size is automatically
determined according to the change in
the resistance value of the VR.
*3 First paper feed paper loop
mechanism
When paper feed starts, paper is fed to
the pre-registration roller by the feed
roller and pick rollers. The fed out paper
operates the actuator of the paper feed
PS/1 (PS1), the paper feed PS/2 (PS7)
turning it on. The feed and pick rollers
remain on for a specified time after the
actuation of the paper feed PS/1 (PS1)
and PS/2 (PS7), causing a paper loop to
form against the pre-registration rollers
which are not turning. In this way, paper
skew is corrected.
Coupling gear
[Main body side]
Coupling
[Tray side]
Paper size VR gear
Rack gear
Side guide (front)