Epson Mt532 Manual

							5-6   RepairRev. A
Confidential
Paper is not 
fed.Paper is not fed 
smoothly.(1)The paper roll 
supply module 
does not 
oscillate 
properly.B Check if the paper is 
pulled out smoothly. 
(The paper tension 
loading should be less 
than the rating value.)·Load the paper 
   properly.
·Replace the paper 
  roll supply module if 
  the oscillation 
  loading of the 
  paper supply 
  module is 
  excessive.
(2) The paper size is 
 not correct.A Check the paper 
diameter, width, and 
thickness.Use the specified 
paper.
Paper is not fed.
(1)Abnormal input 
signal or paper 
feed motor 
failureB Check the power 
supply voltage, input 
signal, and operation 
of each paper feed 
motor.·Replace the 
control circuit 
board module if 
there is any 
problem with the 
power supply 
voltage, input 
signal.
·Replace the motor 
if there is any 
problem with the 
motor operation.
(2)The paper feed 
connector is 
disconnected.A
Check if the each 
paper feed motor is 
connected properly.Connect the 
connector properly.
(3)Power 
transmission parts 
(gears) are 
damaged, or 
foreign matter is 
caught between 
gears.B
·Check the power 
transmission state of 
each gears.
·Check if no foreign 
matter is caught 
between geas.·Replace damaged 
gears.
·Remove foreign 
matter if there is 
any.
Table 5-1 Troubleshooting
Phenomenon Condition Cause Level Where/how to check Procedure 
						

							Rev. ARepair   5-7 EU-T532/T542 Technical Manual
Confidential
Paper feeding 
pitch is 
defective.The character 
spacing is not 
uniform.(1)The paper roll 
supply module 
does not 
oscillate
properly.B Check if the paper is 
pulled out smoothly. 
(The paper tension 
loading should be less 
than the rating value.)·Load the paper 
   properly.
·Replace the paper 
  roll supply module if 
  the oscillation 
  load of the paper 
  supply module is 
  excessive.
(2)Power  
transmission parts 
(gears) are 
damaged, or 
foreign matter is 
caught between 
gears.B
·Check the power 
transmission state of 
each gears.
·Check if no foreign 
matter is caught 
between gears.·Remove foreign 
 matter if there is 
 any.
·Replace damaged 
 gears .
(3)Abnormal input 
signal or paper 
feed motor 
failureB Check the power 
supply voltage, input 
signal, and operation 
of each paper feed 
motor.·Replace the 
control circuit 
board module if 
there is any 
problem with the 
power supply 
voltage, input 
signal.
·Replace the motor 
if there is any 
problem with the 
motor operation.
(4)Paper feed slip 
due to the 
platen wear and 
paper powderB Check the friction force 
of the platen surface.·Clean the platen if 
paper powder 
accumulates on it.
·Replace the platen 
if it is worn out.
(5)Operation failure 
of the paper roll 
tension unitB Check if the unit moves 
smoothly.If it does not 
operate properly, 
replace the paper 
roll tension unit.
Paper can not 
be cut.Paper is not cut 
automatically.(1)Foreign matter 
inside the
autocutterA Check whether foreign 
matter is inside the 
autocutter.Remove foreign 
matter if there is 
any.
(2)Abnormal input 
signal or inner 
mechanism 
damage of the 
autocutterB Check the power 
supply voltage, input 
signal, and operation 
of the cutter motor.·Replace the 
control circuit 
board module if 
there is any 
problem with the 
power supply 
voltage, input 
signal.
·Replace the motor 
if there is any 
problem with the 
autocutting 
operation. 
Table 5-1 Troubleshooting
Phenomenon Condition Cause Level Where/how to check Procedure 
						

							5-8   RepairRev. A
Confidential
Platen unit can 
not open/
close.Platen unit does 
not open.The cutter blade is 
not in the home 
position.B Check if the cutter 
blade is in the home 
position.Turn the knob to 
return the cutter 
blade to the home 
position.
Platen unit does 
not close.Foreign matter 
inside the printer.A Check whether foreign 
matter is inside the 
printer.Remove foreign 
matter if there is 
any.
Upper frame, 
cut sheet 
presenter unit 
can not open/
close.Upper frame, cut 
sheet presenter 
unit can not 
open/close.Foreign matter 
inside the cut sheet 
presenter moduleA Check whether foreign 
matter is inside the cut 
sheet presenter 
module.Remove foreign 
matter if there is 
any.
Table 5-1 Troubleshooting
Phenomenon Condition Cause Level Where/how to check Procedure 
						

							Rev. A Assembly and Disassembly   6-1 EU-T532/T542 Technical Manual
Confidential
Chapter 6
Assembly and Disassembly
Small Parts Abbreviation
All small parts are represented by the abbreviations listed below.
Assembly
oOnly assembly steps for the printer module are in this section. For assembly steps for other 
modules, follow the disassembly procedures in “Disassembly” in reverse sequence. Also, 
see  in “Disassembly procedure” while assembling.
oPerform assembly while referring to the component shapes and mounting positions shown 
in the exploded diagrams at the end of this manual.
oThe H symbols in the “Reassembly step” indicate places where checks are required. Make 
sure to follow the instructions given in these places.
oCircled numbers in the “Reassembly step” indicate that lubrication is required during the 
reassembly of that component and that such lubrication will be difficult unless performed 
during reassembly.
oRefer to “Lubrication” in Chapter 4 for lubrication details on the printer module and other 
modules. Also, see the lubrication diagrams at the end of this manual for the places to 
lubricate.
Table 6-1   Small Parts Abbreviations
Abbreviation Part name
R.E Retaining ring E-type
C-ring Crescent ring
C.B. (M2 ´ 2.5)Cross-recessed binding head screw, 2 ´ 2.5, F/Zn
C.B. (M2.3 ´ 3) Cross-recessed binding head screw, 2.3 ´ 3, F/Zn
C.B. (M2.5 ´ 4) Cross-recessed binding head screw, 2.5 ´ 4, F/Zn
C.B. (M3 ´ 4) Cross-recessed binding head screw, 3 ´ 4, F/Zn
C.B. (M3 ´ 6) Cross-recessed binding head screw, 3 ´ 6, F/Zn
C.P. (M1.6 ´ 5) Cross-recessed pan head screw, 1.6 ´ 5, F/Zn
C.P (P2) Cross-recessed pan head (S-P1) screw, 3 ´ 6, F/Zn
C.B.B-tite (M2 ´ 6) Cross-resessed binding head B-tite self tapping screw, 2 ´ 6, F/Zn
C.B.S-tite (M2.5 ´ 4) Cross-recessed binding head S-tite self tapping screw, 2.5 ´ 4, F/Zn
C.B.S-tite (M3 ´ 5) Cross-recessed binding head S-tite, 3 ´ 5, F/Zn
C.C.P-tite (M2.5 ´ 6) Cross-resessed cup head P-tite self tapping screw, 2.5 ´ 6, F/Zn
C. P-tite. F screw (M2 ´ 3) Cross-recessed P-tite self tapping flat end screw, 2 ´ 3, F/Ni 
						

							6-2   Assembly and Disassembly Rev. A
Confidential
Pre-assembly A Paper guide,straight, back unit
Reassembly 
stepPart name Assembly procedure
1
Paper detector assembly
2
Paper guide, straight, back 
(for the EU-T532)
*For the EU-T542, attach the 
Paper guide, straight, 
back, B.o
 Slide the
 paper detector assembly onto the 
paper guide, straight, back*.
H

o
 Make sure that the 
paper detector assembly is installed securely, as shown 
below. 
paper detector 
assembly
paper guide, straight, back
Install securely. 
						

							Rev. A Assembly and Disassembly   6-3 EU-T532/T542 Technical Manual
Confidential
Pre-assembly B Frame, platen, straight unit
Reassembly 
stepPart name Assembly procedure
1
Frame, platen
2
Lock lever assembly
C.B.B-tite (M2 ´ 
´ ´  ´ 
6)´ 1o
 Install the
 lock lever assembly on the
 frame, platen, and secure it with a 
screw.
H

o
 Tightening torque: 294 to 343 mN·m {3.0 to 3.5 kg·cm}
o
 Make sure that the screw does not skew during tightening.
3
Cover, fixed blade
4
Fixed blade, Ho
 Install the
 cover, fixed blade and the
 fixed blade, H on the 
frame, platen; 
then
 secure them with 
shouldecs.
5
Spring, fixed blade
Shouldec (2 ´ 
 ´  ´   ´ 
6 ´ 
´ ´  ´ 
2) 
    ´ 2At this time, install the 
spring, fixed blade on one of the 
shouldecs, as
shown below.
H

o
 Tightening torque: 147 to 196 mN·m {1.5 to 2.0 kg·cm}
o
 Make sure to install the 
fixed blade, H right-side-up.
o
 Make sure that the dowels on the 
frame, platen fit securely into the holes 
on the 
cover, fixed blade.
o
 Make sure to install the 
spring, fixed blade in the correct position.
C.B.B-tite (M2 ´ 6)
lock lever assembly
frame, platen
shouldecs
spring, fixed blade
fixed blade
mounting dowels
cover, fixed blade, H
frame, platen 
						

							6-4   Assembly and Disassembly Rev. A
Confidential
Pre-assembly B
Reassembly
stepPart name Assembly procedure
6
Push plate, platen, B
C.C.P-tite (M2.5 ´ 
´ ´  ´ 
6) ´ 1o
 Install the 
push plate, platen, B to the 
frame, platen and secure it with a 
screw.
H

o
 Tightening torque: 392 to 490 mN·m {4 to 5 kg·cm}
7
Spring, lock levero
 Hook the ends of the 
spring, lock lever onto the 
lock lever assembly and 
C.B.B-tite (M2 ´ 
 ´  ´   ´ 
6) from the inside of the 
frame, platen.
H

o
 Make sure that the 
spring, lock lever is hooked securely.
push plate, platen, B
frame, platen
C.C.P-tite (M2.5 ´ 6)
C.B.B-tite (M2 ´ 6)
spring, lock lever
lock lever assembly
frame, platen 
						

							Rev. A Assembly and Disassembly   6-5 EU-T532/T542 Technical Manual
Confidential
Pre-assembly B
Reassembly
stepPart name Assembly procedure
8
Platen, straight assembly
9
µ
Bearing, platen
R.E. (2.5)´ 1o
 After Installing the 
platen, straight assembly to the
 frame, platen, install the 
bearing, platen from the outside of the 
frame, platen; then secure it with 
an 
R.E.
o
 Lubricate with G-15 two points where the screw on the 
lock lever 
assembly is secured.
platen, straight 
assembly
bearing, platen
R.E.(2.5)
bearing,
 platen
frame, platen
G-15 
						

							6-6   Assembly and Disassembly Rev. A
Confidential
Pre-assembly C Cutter motor assembly
Reassembly
stepPart name Assembly procedure
1
Microswitch
2
Lead wire, paper cuttero
 Solder the white lead wire of the 
lead wire, paper cutter to the 
microswitch.
3
Cutter motor sub-assemblyo
 Solder the red wire of the 
Lead wire, paper cutter to the red marked 
terminal side of the 
Cutter motor sub-assembly, and solder the black lead 
wire to the other terminal.
H

o
 Make sure to arrange the lead wires properly.
microswitch
whitelead wire, paper cutter
blackred
*No polarity
red markred
blacklead wire, 
paper cuttercutter motor sub-assembly 
						

							Rev. A Assembly and Disassembly   6-7 EU-T532/T542 Technical Manual
Confidential
Pre-assembly D Cutter, cover sub-unit
Reassembly
stepPart name Assembly procedure
1
Cutter, cover sub-assembly
ÁGear, cutter worm, Ho
 Lubricate with G-36 the bore of the 
gear, cutter worm, H and the point 
where the 
gear, cutter worm, H comes in contact with the 
cutter, cover 
sub-assembly; then install it on the 
cutter, cover sub-assembly.
3
Shaft, reduction A/Co
  Insert the 
shaft, reduction A/C to the bores of the 
gear, reduction A/C 
and the 
gear, cutter worm, H.
H

o
 Make sure that the 
shaft, reduction A/C is oriented properly before 
insertion.
gear, cutter worm, H
G-36
cutter, cover sub-assembly
G-36G-36
shaft, reduction A/Cgear, cutter worm