Sharp PC-1600 Service Manual page 87

15 ROllers of the pulley support rests
(R &
L) do not rotate
16 Slider unit is in contact with the
paper guide or its rollers
Improper relation between the two
17
gears of the pulley gear unit
18 The lead wire of the Z· m otor is cut
19 Deformed Z· c am gear
20 Foreign materials in the teeth of
the Z-drive gear
21
B igger pen stro ke
22 Smaller pen stroke
23 Removed or deformed color-change
lever spring of the slider unit
24 Defective switch of the switch unit
25 The lead wire of the switch unit
is cut
26 Deformation or breakage of the
penreturn spring of the slider unit
..,.
oe
Deformed or broken detent plate
27
I of the slider unit
28 Removed holder ring of the slider
unit
29
The lead wire of the Yrnotor is
cut
30 Mulfunction of the Y-rnotor unit
31 Deformed or broken V -idler gear
32 Platen roller does not rotate
Foreign materials in the teeth of
33
the V -drive gear
34
The rollers of the paper guide do
not rotate smoothly
35 Foreign .materials in the paper gu ide
36 Deformed paper-holder installing
plates (L & R)
37 Unspecified paper is used
38 Improper relation betweem the two
gears of the platen roller unit
39 Worn bearing part of the rubber
roller
0
0 0
0 0
0 0 0 0
0 0 0 0
0 0 0 0
0
0
0 0
0 0 0 0
0
0
0
0
0
0 0 0
0 0
0 0
0 0
0
0 0
0 0 0
0 0
0 0
0 0
B
Remove the wire and check that the
pulleys rotate smoothly.
B
Check for contact
slider from side to side when the
release lever is
A Check the relative position
gears of the pulley gear.
0 0
C Check that the proper current
into each phase of the motor.
0 0
C Check for the deformation
Z-cam gear, especially thegrooveson
0 0
A
Check for foreign materials.
0
C Measure the pen stroke of the specified
pen (length: 23.3 +0 or -0.1
make sure that the gap is 0.7 to
0.8mm.
0
C Measure the pen stroke of the specified
pen (length: 23.3 +0 or -0.1 mm) to
make sure that the gap is 0.7 to
0.8mm.
0
0
B Check whether
spring is either removed
0
B
0
B Check that the proper current
into the switch.
0 0 0
B Check for deformation
of the pen-return
0 0 B
Check for deformation
of the detent plate.
0 0
A
Check if the holder ring is removed
from the rotary holder.
B
Check that the proper current
into each phase of the motor.
B Remove the Yvidler gear and check the
rnotor gear for any unsual load by
turning it slowly.
A Check the V-idler gear.
B
Remove the Y-idler gear and check the
rotation of the platen roller.
A Check for foreign materials.
Check that the rollers of the paper
A
guide rotate smoothly.
A Check for foreign materials.
A Check if the paper-holder
plate unit is deformed
slider unit or the platen roller.
A Check the paper size, thickness,
quality.
A Check the relative position
gears of the platen gear.
A Check for a bigger backlash
shaft and the bearing.
Replace the pulley support
unit.
bv moving the Replace the slider unit. If the roller
spring of the paoer guide is
ON. deformed, replace the spring.
of the two
Put the two gears together
correctly.
flows Replace the Z-motor
of the Replace the Z· c am
it.
Remove foreign materials.
Adjust the pen stroke correctly.
mm) to
Adjust the pen stroke correctlv,
the cotor-chanqe lever Replace the color-change
or deforrned, spring.
Replace the switch unit.
flows Replace the switch unit.
or breakage
Replace the slider unit.
spring.
or breakage Replace the slider unit.
Set the holder ring in the rotary
holder properly. Replace the
holder ring, if its dick
flows Replace the Y-mctor
Replace the V -motor u nit.
Replace the V-idler gear.
Replace the platen roller,
Remove foreign rnaterials,
Replace the printer
Remove foreign materials.
installing Replace the paper-holder
and touches the plate unit.
and Use specified paper.
of the two Pu t the two gears together
correctly.
of the R Replace the platen roller unit.
rest
unit.
gear.
lever
I
is broken.
I
unit. I
I
mechanism.
installing
~I