Olivetti d-Copia 1600 Service Manual page 124

2HA/2HB
Problem
(11)
The original size is
not detected cor-
rectly.
(12)
The message
requesting paper to
be loaded is shown
when paper is
present in the drawer
or MP tray.
(13)
The size of paper in
the drawer is not dis-
played correctly.
(14)
A paper jam in the
paper feed, paper
conveying or fuser
section is indicated
when the power
switch is turned on.
(15)
The message
requesting covers to
be closed is dis-
played when the front
cover and left cover
are closed.
(16)
Others.
1-4-28
Causes
Original is not placed cor-
rectly.
Poor contact in the original
size detection sensor con-
nector terminals.
Defective original detection
switch.
Defective original size
detection sensor.
Poor contact in the paper
switch or MP paper switch
connector terminals.
Defective paper switch.
Defective MP paper switch.
Poor contact in the paper
length switch connector ter-
minals.
Defective paper length
switch.
A piece of paper torn from
copy paper is caught
around registration switch,
exit switch or feedshift
switch.
Defective registration
switch, exit switch or feed-
shift switch.
Poor contact in the connec-
tor terminals of safety
switch.
Defective safety switch.
Wiring is broken, shorted or
makes poor contact.
Noise.
Check procedures/corrective measures
Check the original and correct if necessary.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
If the level of YC18-5 on the engine PWB does not change when
the original detection switch is turned on and off, replace the origi-
nal detection switch.
Check if sensor operates correctly. If not, replace it.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
If the level of YC8-2 on the engine PWB does not change when
the paper switch is turned on and off, replace the paper switch.
If the level of YC8-1 on the engine PWB does not change when
the MP paper switch is turned on and off, replace the MP paper
switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if YC22-1,2,4 on the engine PWB goes low when the paper
length switch is turned on. If not, replace the paper length switch.
Check and remove if any.
Run maintenance item U031 and turn each switch on and off
manually. Replace the corresponding switch if indication of switch
is not light.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check for continuity across each switch. If there is no continuity
when the switch is on, replace it.
Check for continuity. If none, repair.
Locate the source of noise and remove.