Ricoh FT7770 Service Manual page 480

- Stapler motor -
When the grippers reach the home position, the stapler motor turns on [A].
This moves the hammer [B] up and down via the cam [C], and link [D]. The
motor also drives the stapler feed belt [E]. The motor turns off when the
stapler HP sensor [F] is actuated.
- Paper sensor -
The paper sensor [G] detects whether copies gripped by the grippers are at
the staple position just before stapling.
- Staple end sensor -
The staple end sensor [H] located underneath the staples cartridge [I]
detects when staples run out.
sent to the CPU.
Staple End indicator is displayed on the copier operation panel and a message
to the operator is displayed on the copier guidance display. Stapling is
then inhibited even if the main switch is turned off and on.
If the staple cartridge is empty, a signal is
After all the copies stacked in the bins are stapled, the
If not, the CPU inhibits stapling.
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30 April, '89