Epson Mt532 Manual

							3-6   HandlingRev. A
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Loading/Removing Paper
Loading Paper
See the sticker on the paper roll hold unit
 for the paper loading.
Figure 3-3  Paper loading display on sticker
Note:
Use only the paper specified in the EU-T532 and the EU-T542 specifications issued by Seiko Epson 
Corporation.
Loading paper for the paper roll supply module
Follow the steps below to load the paper for the paper roll supply module.
1. Lift the plate, fixed
 upward to release the lock with the shaft, paper roll
.
2. Open the paper roll hold unit
.
3. Attach a holder, paper roll
 which meets the inside diameter of the paper core to the shaft, 
paper roll
; then secure it with a C-ring.
Note:
At the default setting, the holder, paper roll A
 (for the inner diameter of the paper core is 25.4 mm 
{1}) is attached to the paper roll supply module. Since two holders, the holder, paper roll B
 (if the 
inner diameter of the paper core is 50.8 mm {2}), and the holder, paper roll C
 (if the inner 
diameter of the paper core is 76.2 mm {3}), are also packed in the box, use the appropriate holder, 
paper roll
 that meets your paper core size.
4. Load the paper roll to the holder, paper roll
 with the printing surface of the paper facing 
upwards.
5. Close the paper roll hold unit
 to secure the paper roll. At this time, make sure that the 
plate, fixed
 is securely engaged with the shaft, paper roll
.
plate, fixed
paper roll hold unit 
						

							Rev. AHandling   3-7 EU-T532/T542 Technical Manual
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Loading paper for printer module
Follow the steps below to load the paper for the printer module from the paper roll supply 
module.
1. Cut the edge of the paper as shown in Figure 3-4.
Figure 3-4  Shape of paper edge
2. Pull out the paper and pass it under the roller, paper roll tension
.
3. After inserting the paper edge straight into the paper slot of the printer module so that the 
paper is along the upper side of the plate, lower paper guide
, push the paper with your 
hand.
4. When the inserted paper is detected by the paper-end detector
 of the printer module, the 
paper is fed automatically in the semi-autoloading mode.
5. When the semi-autoloading is finished, the extra paper is automatically cut.
6. Remove the extra paper from the paper exit
.
Note:
• Performing operations other than above can cause improper paper feeding and jamming.
• Make sure that the paper is not wrinkled or torn.
• To avoid paper jams, do not fold the edge of the paper.
• Paper curled in the opposite direction from the paper entrance might be difficult to insert.
• If the paper is not inserted at a right angle, paper jams or paper folding may occur. In this case, 
open the platen unit
, and load the paper properly after removing a paper jam.
• Do not apply excessive pressure to the shaft, paper roll
; otherwise the paper roll hold unit
 
may not open/close properly because of deformation or damage of the shaft. 
						

							3-8   HandlingRev. A
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Removing Paper
Follow the steps below to remove the paper roll.
Removing paper using command
While the printer is online, the paper can be removed using a FS ( z
 command. Using this 
command, the paper is fed in the reverse direction and detached from the platen
; then you can 
pull the paper backward and remove it.
Manual paper removing
1. Turn the lever, platen
 to open the platen unit
. (See “Opening/Closing the platen unit” on 
page 3-4.)
2. Pull out the paper from the paper slot of the printer module.
3. Open the paper hold unit
 of the paper roll supply module and remove the paper roll from 
the shaft, paper roll
.
Note:
Do not apply excessive pressure to the shaft, paper roll
; otherwise the paper roll hold unit
 may 
not open or close properly because of deformation or damage of the shaft.
Removing Jammed Paper
CAUTION:
 Since the thermal head area and the paper feed motor surface of the printer module 
and the paper feed motor surface of the cut sheet presenter module can become hot 
right after printing, never touch them with your bare hands; allow about 15 minutes for 
them to cool.
Note:
oNever pull the paper out with the platen unit
 of the printer module or the upper frame, cut 
sheet presenter unit 
of the cut sheet presenter module down.
oWhen using tools such as tweezers to remove paper pieces, avoid touching the head heating elements 
or the elements of each paper detector with them.
Removing Jammed Paper in the Cut Sheet Presenter Module
Open the upper frame, cut sheet presenter unit
 or the cut sheet presenter module, and 
remove a paper jam. (See “Opening/Closing Units and Module” on page 3-4.)
Removing Jammed Paper in the Printer Module
1. Open the cut sheet presenter module.
2. Turn the lever, platen
 to open the platen unit
 and remove a paper jam. (See “Opening/
Closing Units and Module” on page 3-4.) 
						

							Rev. AHandling   3-9 EU-T532/T542 Technical Manual
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Paper NE Detector Setting
This detector is mounted on the paper roll tension unit 
of the paper roll supply module. By 
adjusting the position of the detector, the detector can detect the amount remaining on the paper 
roll at the setting value. At the default setting, the amount remaining is set to be about 5 m 
{196.85} when the paper tip is detected, and when using the paper which has 25.4 mm {1} inner 
diameter of the core, 33.4 mm {1.3} outer diameter of the core and the 65 mm paper thickness. 
When you want to change the setting, follow the steps below.
1. If the paper is loaded, open the paper roll hold unit
, and remove the paper roll. (See 
“Removing Paper” on page 3-8.)
2. Loosen the screw, NE detector
 so that the paper NE detector
 can be moved in the 
direction of arrow.
3. Tighten the paper NE detector 
with the screw, NE detector
 at the given fixing hole for 
the paper NE detector
. For further adjustment, use the paper NE detector
 fixing groove. 
The hole numbers for the paper NE detector
 fixing hole and the paper roll diameters 
detected by the paper NE detector
 are as follows:
Note:
oBecause the amount remaining on the paper roll will vary with the paper types (thickness), make sure 
to check before setting.
oDo not touch the light emission or receiving surfaces of the paper NE detector
 with your hands or 
any objects since dirt may stick to them, or cause damage by static electricity.
Figure 3-5  Setting of the paper NE detector Table 3-1 Setting of the Paper NE Detector
Hole No. 1 Hole No. 2 Hole No.3 Hole No.4 Hole No. 5 Hole No. 6 Hole No. 7
Detected paper diameter  45 mm
{1.77}50 mm
{1.97}60 mm
{2.36}70 mm
{2.76}80 mm
{3.15}90 mm
{3.54}100 mm
{3.94}
paper NE fixing hole
paper NE fixing groove
paper NE detector
screw, paper NE detector
1234567 
						

							3-10   HandlingRev. A
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Self Test
The EU-T532/542 have self test functions. Follow the steps below to perform the self tests.
Performing the Self Test
1. Loosen two screws to remove the cover, circuit board B
.
Figure 3-6  Performing the self test
2. With the paper loaded, turn on the power while holding down the paper feed switch on the 
circuit board. (If the power is already on, turn it off first before performing the self test with 
the paper loaded.)
3. The current printer status is printed.
4. When the printing is complete, the message, “Self test printing, please press 
FEED button,” is printed; then the PAPER OUT LED starts to flash.
5. Press the paper feed button again while the PAPER OUT LED is flashing; then the printing 
(for the test pattern printing) is resumed.
Self Test End
1. After a number of lines are printed, the message, ***completed***, is printed at the end 
of the self test; then the unit enters the normal operational mode, with all settings initialized.
2. When the self test is completed, attach the cover, circuit board B
 with screws.
Note:
During the self test, check each LED on the circuit board. If an error occurs during the self test, see the 
following section and “Troubleshooting” in Chapter 5 for details.
cover, circuit board B
screws
paper feed switch
(See also Figure 3-7.) 
						

							Rev. AHandling   3-11 EU-T532/T542 Technical Manual
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Errors
LED Display 
The control circuit board module has three LEDs: the POWER LED for power supply error, the 
PAPER OUT LED for paper-out error and the ERROR LED for various kind of errors. For recovery 
from errors, see “Troubleshooting” in Chapter 5.
Figure 3-7  LED positions
POWER LED (Power Supply Error): Green
When the POWER LED is lit, the power is supplied. The LED indicates the following:.
Table 4-4 POWER LED Error
Error type LED flashing pattern Cause
Power supply error Not lit
The power supply connector is unplugged.
The fuse (F1) is blown out.
POWER LED
PAPER OUT LEDERROR LED
PAPER FEED switch 
						

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PAPER OUT LED (Paper-End Error): Red
When the PAPER OUT LED is not lit, the paper roll has enough paper on it. The LED indicates the 
following:
ERROR LED (Error): Red
ERROR LED has three error types: the automatic recovery error, the possible recovery error, and 
the recovery impossible error. The LED indicates the following:
Automatic recovery error
Note:
The high temperature error of the print head is not an abnormality. When the head is cooled down to 60
°C 
or less, the unit recovers automatically.
Table 4-5 PAPER OUT LED Error
Error type LED flashing pattern Cause
Paper-end error Lit
·
 The amount of remaining on the paper roll is little, or 
   no paper is loaded.
· A 
paper jam occurs around the detector.
· 
Detector failure has occurred.
· 
The connector of the detector is unplugged.
Waiting for self test 
printing to be continued 
or macro execution 
ready stateFlashingSelf test printing is in the ready state during self test.
Table 4-6 Automatic recovery error
Error type LED flashing pattern Cause
Print head high 
temperature errorThe head temperature has reached at 70°
C or more.
Approx. 320 ms
®Approx. 320 ms 
						

							Rev. AHandling   3-13 EU-T532/T542 Technical Manual
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Possible recovery error
Recovery impossible error
Note:
When any error shown above occurs, turn off the power as soon as possible.
Table 4-7 Possible Recover Error
Error type  LED flashing pattern Cause
Platen open error Platen unit is open during printing.
Autocutter error Autocutter malfunction
Black mark sensor 
detection errorNo black mark is detected even after a certain amount 
of paper with black mark is fed.
Presenter error A paper jam has been detected in the cut sheet 
presenter module.
Table 4-8 Impossible recover error
Error type LED flashing pattern Cause
CPU execution error The CPU executes an incorrect address.
R/W error in 
memory or G/AAfter R/W checking, the printer does not work correctly.
High voltage error The power supply voltage is extremely high.
Low voltage error The power supply voltage is extremely low.
PCB connection 
errorThe printer is not connected or the head wiring is 
disconnected.
Approx. 5.12 s
Approx. 320 ms
Approx. 320 ms
Approx. 5.12 s
Approx. 5.12 s
Approx. 5.12 s
Approx. 320 ms
Approx. 5.12 s 
						

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							Rev. AMaintenance   4-1 EU-T532/T542 Technical Manual
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Chapter 4
Maintenance
To keep the printer in peak working condition, extend its life for a long term and prevent 
operational failures, follow the maintenance procedures below.
Cleaning
CAUTION:
• Never clean the thermal head with solvents other than the specified ones, since 
other solvents could damage the thermal head or cause the malfunction of 
parts.
• Since the head area and each motor surface can become hot right after 
printing, allow about 15 minutes for them to cool.
Thermal Head Cleaning
The head heating elements of the printer module will collect dust after printing for a long period 
of time because of heat sensitive materials contained in the paper, that could affect printing 
quality. In this case, clean the thermal head using the steps below.
1. Turn off the power.
2. Open the cut sheet presenter module. (See “Opening/Closing Units and Modules” on page 
3-4.)
3. Open the platen unit
 using the lever, platen
, and remove the paper.
4. Wipe off the dust on the head heating elements using a cotton swab dampened with alcohol 
solvent, such as ethanol, or IPA.
Figure 4-1  Thermal head cleaning
5. After the alcohol evaporates completely, turn the lever, platen
 or push the push plate, 
platen B
 to close the platen unit
. 
head heating elements
cotton swab
lever, platen
push plate, platen B