Detecting The Height Of Stack On The Tray - Sharp AR-FN8 Service Manual

CHAPTER 2 FINISHER UNIT BASIC OPERATION
H.

Detecting the Height of Stack on the Tray

1. Outline
The number of sheets delivered to the tray and the number of sets (number of stapling opera-
tions) are stored in memory by the finisher controller PCB. The height of the stack is checked by
the height sensor (PS1). See Table 2-201 for the maximum loading capacity of each tray.
The finisher controller PCB stops its operation when the conditions in Table 2-201 occur,
informing the host machine that the tray is full.
Stacking
mode
Tray Small-size
Tray 1 147 mm high
(1000 sheets)
Tray 2 147 mm high
(1000 sheets)
Notes: 1. The capacity for the non-staple sort mode is approximate and computed based on 80 g/m
2. Alignment for stacks containing of 750 sheets or more is not guaranteed.
3. Stacking height precision is ±7 mm.
Note:
1. The term "small-size" stands for A4, A5-R, B5, LT, ST-R.
2. The term "large-size" stands for A3, B4, A4-R, B5-R, L , LG, LT-R, FOLIO,
COMPUTER.
2-40
Non-staple sort
Large-size Mixed sizes
74 mm high 74 mm high
(500 sheets) (500 sheets)
74 mm high 74 mm high
(500 sheets) (500 sheets)
Table 2-201
Staple sort
Small-size Large-size
110 mm high 74 mm high
(750 sheets/ (500 sheets/
50 sets) 50 sets)
110 mm high 74 mm high
(750 sheets/ (500 sheets/
50 sets) 50 sets)
Mixed sizes
74 mm high
(500 sheets/
50 sets)
74 mm high
(500 sheets/
50 sets)
2
paper.