Valentin Solo type Manuale utente
English
Service manual
Thermal Transfer Printer
Solo type
79.25.025 •12 December 1997
Carl Valentin GmbH •Neckarstraße 78-80 & 94 •78056 VS-Schwenningen
Table of contents
I
Table of Contents
1. Block circuits ......................................................................................................................................1
1.1. Block circuit baseboard (CPU & network)....................................................................................1
1.2. Block circuit option board.............................................................................................................2
1.3. Wiring diagram .............................................................................................................................3
2. Electronics ..........................................................................................................................................4
2.1. Check-points ................................................................................................................................4
2.1.1. Voltage supply baseboard.................................................................................................4
2.1.2. Voltage supply option board .............................................................................................4
2.1.3. Photocells..........................................................................................................................5
2.1.4. Clock-signals.....................................................................................................................8
2.1.5. Strobe-signals...................................................................................................................9
2.1.6. Motor signals...................................................................................................................12
2.1.7. External control inputs / outputs (option board)..............................................................12
2.2. Component parts of baseboard..................................................................................................13
2.3. Component parts of option board...............................................................................................14
2.4. Changing of fuses ......................................................................................................................15
2.4.1. Primary fuse....................................................................................................................15
2.4.2. Secondary fuse...............................................................................................................15
2.5. Service monitor ..........................................................................................................................16
2.5.1. Valuation of label parameters .........................................................................................16
2.5.2. Error message: label error ..............................................................................................17
2.5.3. Error elimination..............................................................................................................18
2.5.4. Monitor ............................................................................................................................18
3. Mechanics .........................................................................................................................................19
3.1. Exchange of print head ..............................................................................................................19
3.2. Adjustment of print head ............................................................................................................20
3.2.1. Pressure..........................................................................................................................20
3.2.2. Print quality .....................................................................................................................20
3.3. Cleaning of print head................................................................................................................21
3.4. Exchange of pressure roll...........................................................................................................22
3.5. Exchange of ribbon unwinding roll .............................................................................................23
3.6. To oil and lubricate.....................................................................................................................24
3.7. Option dispenser ........................................................................................................................25
3.7.1. Exchange dispenser........................................................................................................25
3.8. Option cutter...............................................................................................................................26
3.8.1. Cleaning/ servicing/changing of cutter............................................................................26
3.9. Options winder PR 25 / PR 26 ...................................................................................................27
3.9.1. Exchange motor..............................................................................................................27
3.10. Option memory-card.................................................................................................................28
3.10.1. Mounting of MC plug-in unit..........................................................................................28
4. Possible sources of error ................................................................................................................29
4.1. Error messages on the display...................................................................................................29
4.2. General errors ............................................................................................................................32
Service manual
1
1. Block circuits
1.1. Block circuit baseboard (CPU & network)
The corresponding plan is available on demand.
Service manual
2
1.2. Block circuit option board
The corresponding plan is available on demand.
Service manual
3
1.3. Wiring diagram
The corresponding plan is available on demand.
Service manual
4
2. Electronics
2.1. Check-points
2.1.1. Voltage supply baseboard
Check-point description value
JP6,7 PIN 1a,c VCC 5V
JP16 PIN 1,2 VDD 5V
JP6,7 PIN 32a , c GND 0V
JP24 PIN 1-3 VH 18V (printhead solo 51)
21V (printhead solo 80)
JP24 PIN 4-6 GND 0V
JP30 PIN 1 12V 12V
JP25 PIN 1 VM ~35V
R47 upper PIN VG ~35V
R47 lower PIN VR 7,2V
2.1.2. Voltage supply option board
Check-point description value
JP2,3 PIN 1a, c VCC 5V
JP2,3 PIN 32a, c GND 0V
JP2,3 PIN 2c V OUT 5V
JP2,3 PIN 3c V Batt 0V
Service manual
5
2.1.3. Photocells
Label photocell: Transmission
JP2: PIN 1 VSS ~1,2V
PIN 2 INP
PIN 3 INP }see below
PIN 4 GND 0V
Depending on the transparency of the label res. backing paper the voltage at the input of the
AD-converter is changing.
In sketch 1 a typical voltage wave form at "INP" is shown ( measurable at U6 PIN3 too).
In case the adjusted value of the sending current of the photocell is not sufficient, e.g. when
using extremely thick or thin backing paper, it can be adjusted by changing P1.
Rotation to the right adjustment for thick backing paper
Rotation to the left adjustment for thin backing paper
The "INP"-level can be displayed in the menu item "Parameter of the label photocell" under
"Transmission photocell" (see chapter "2.5.4. Monitor").
measurement of photocell
Service manual
6
label photocell: reflection
JP3: PIN 1 VCC 5V
PIN 2 INP see sketch
PIN 3 VSS ~ 2V
PIN 4 GND 0V
The voltage wave form at "INP" is similar to the one described under A ( measurable at U6 PIN4 too).
It has to be considered that the marking for the reflection photocell must be in a distance of 32,5 mm
to the interior rim, so that the photocell recognizes the marking.
The "INP"-level can be displayed in the menu item "Parameter of the photocell" under "Reflection
photocell" (chapt. "2.5.4. Monitor"). The marking should have a size of at least 7 mm x 3 mm or bigger.
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