Read Sharp AR-FN7 (serv.man14) Technical Bulletin online
below. As this is a high value item it is essential that customer/service personnel
are made aware of the correct procedure to install the staple cartridge to prevent
The stapler itself is not correctly located at the initial position.
The staple cartridge is not correctly installed
of the staple unit into the ARFN7, will cause the staple cartridge to dislodge. Because the stapler itself is
not at the initial position (Condition 1.) the stapler will try to return to the initial position when powered on.
As the staple cartridge is dislodged, when the stapler tries to staple sheets, the staple actuator will hit the
metal spigot (shown at B below) instead of the staples.
damage shown to the resin parts shown at the beginning of this bulletin.
staple cartridge is not correctly installed and halts the staple unit operation, again causing no damage.