Read Sharp MX-DE15 / MX-16 Service Manual online
MX-DE16 OPERATIONAL DESCRIPTIONS 5 – 2
2. Paper empty detection
The paper empty detector (DPED, PPED2) checks whether there is paper in the tray when the tray is lifted and stopped at a position where it
can feed paper, as well as during paper feed operation.
can feed paper, as well as during paper feed operation.
3. Paper size detection
The size of paper contained in each tray is detected based on the
status of each of desk rear edge detectors (switches) 1 to 4 as well
as on the destination-specific settings.
status of each of desk rear edge detectors (switches) 1 to 4 as well
as on the destination-specific settings.
A/B sizes
{
{
: ON
✕: OFF
Inch-based sizes
{
{
: ON
✕: OFF
4. Paper level detection
The paper feeder detects the amount of paper remaining in the tray as one of four levels (100%, 67%, 33.3%, and zero), and displays the level
it has detected.
The paper feeder determines the remaining paper level based on how many times the paper level detector turns ON during the time between
the start of the lift-up of the paper feed tray and the activation (turning ON) of the upper limit detector.
it has detected.
The paper feeder determines the remaining paper level based on how many times the paper level detector turns ON during the time between
the start of the lift-up of the paper feed tray and the activation (turning ON) of the upper limit detector.
State transition chart: How the paper level detector state changes according to the amount of paper actually remaining during tray
lift-up
lift-up
DCSS12
DCSS22
DCSS11
DCSS21
DCSS13
DCSS23
DCSS14
DCSS24
Rear edge detection switches
1
2
3
4
A3
✕
{
✕
{
A4
{
{
✕
{
A4R
{
{
{
✕
B4
✕
{
{
{
B5
{
{
✕
✕
B5R
{
✕
✕
{
{
✕
{
{
8.5 x 13
✕
{
{
✕
Rear edge detection switches
1
2
3
4
11 x 17
✕
{
✕
{
8.5 x 11
{
{
✕
{
8.5 x 14
✕
{
{
{
7.25 x 10.5R
{
✕
✕
{
{
✕
{
{
8.5 x 11R
{
✕
{
✕
Paper empty detector detects
when there is no paper remaining.
1/3 range
Sensor: logical Low
2/3 range
Sensor: logical High
3/3 range
Sensor: logical Low
When there is no paper
Paper level 1/3 position
Paper level 2/3 position
Paper level 3/3 position
Rotary panel
Paper empty detector
(DPED)
Actuator for detecting the
amount of remaining paper
Paper level detector
(DCSPD)
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