SATO CL608e Guide

CL608e/612e
Mechanical Adjustments
SATO CL608/CL612 printers contain adjustable sub-assemblies. T is means t at during
your regular maintenance, your service tec nicians are able to make adjustments to
reset t e printer to factory specifications t ereby ensuring optimum performance of
your printer.
T e main mec anical sub-assemblies are:
•Ribbon Unwind/Rewind Assembly's
•Ribbon Guide Roller Assembly
•Print Head Assembly
•Drive Belt Assembly's
In t is section you will find procedures for:
•Ribbon Unwind/Rewind Clutch Adjustment
•Print Head Position Adjustment
•Print Head Balance Adjustment
•Ribbon Roller Adjustment
•Ribbon Tension Balance Adjustment
•Feed Roller Adjustment
•Timing Belt Tension Adjustment
•Head Latch Adjustment
•Notch/Gap Sensor Adjustment
SATO America, Inc
545 Weddell Drive
Sunnyvale, CA 94089
Main Phone: [phone]
Tech Support Hotline: [phone]
Fax: [phone]
®
Proc 64

2SATO CL608e/CL612e Mechanical Adjustments
Excessive ribbon unwind and rewind tension will result in variable ribbon motion and
could be t e cause of print quality problems.
Follow t e procedures 1 and 2 to verify t at t e ribbon unwind and rewind tensions are
wit in specifications or if adjustment of eit er clutc is necessary.
Proc 1 Ribbon Unwind Clutch Adjustment
Required Equipment:  1 Kg Tension Gauge
 Ribbon Core, empty
 String
 12mm Wrenc
 #2 Pozidrv Screwdriver
STEP PROCEDURE
1. Connect t e power cable to t e printer and AC outlet. Turn t e printer
ON.
2. Raise t e access door and remove t e ribbon and label stock if installed.
Fig. 1
3. Attac string to an empty ribbon core and place on t e Ribbon Unwind
Spindle. Wind t e string tig tly around t e ribbon core in a single layer
and in a clockwise direction. Attac t e free end of t e string to t e
tension gauge. Fig. 2 & 3
4. Gradually lift t e tension gauge, pulling t e string to unwind it from t e
core. Once t e spindle begins to move, t e gauge s ould indicate 450 to
550 grams of tension. Excessive or insufficient tension must be corrected
by adjusting t e Ribbon Unwind Clutc . Fig. 2 & 3
5. To adjust t e clutc , loosen t e locking screw and move t e adjust nut CW
for more tension and CCW for less tension. Tig ten t e locking screw and
repeat Steps 3 and 4 until t e correct tension is ac ieved.
Fig. 1
REMOVE THE
RIBBON AND
LABEL STOCK
Ribbon Clutch Adjustments

3
SATO CL608e/CL612e Mechanical Adjustments
Ribbon Clutch Adjustments
Fig. 3
RIBBON UNWIND
SPINDLE
ADJUST NUT
LOCKING SCREW IS
INSIDE ADJUST NUT
950-1050g
REWIND
STRING
EMPTY RIBBON
CORES
RIBBON REWIND
SPINDLE
Fig. 4
Fig. 2
450-550g
UNWIND
TENSION GAUGE
TENSION GAUGE
STRING
REWIND CLUTCH UNWIND CLUTCH

4SATO CL608e/CL612e Mechanical Adjustments
STEP PROCEDURE
1. Connect t e power cable to t e printer and AC outlet. Turn t e printer
ON.
2. Raise t e access door and remove t e ribbon and label stock if installed.
Fig. 1
3. Attac string to an empty ribbon core and place on t e Ribbon Rewind
Spindle. Wind t e string tig tly around t e ribbon core in a single layer
and in a clockwise direction. Attac t e free end of t e string to t e
tension gauge. Fig. 2 & 4
4. Gradually lift t e tension gauge, pulling t e string to unwind it from t e
core. Once t e spindle begins to move t e gauge s ould indicate 950 to
1050 grams of tension. Excessive or insufficient tension must be corrected
by adjusting t e ribbon unwind clutc . Fig. 2 & 4
5. To adjust t e clutc , loosen t e locking screw and move t e adjust nut CW
for more tension and CCW for less tension. Tig ten t e locking screw and
repeat Steps 3 and 4 until t e correct tension is ac ieved.
Proc 2 Ribbon Rewind Clutch Adjustment
Ribbon Clutch Adjustments

5
SATO CL608e/CL612e Mechanical Adjustments
STEP PROCEDURE
1. Run a test print. Fig. 5
2. By adjusting t e Allen ead screws on t e rear of t e Stay, you can move
t e print ead forward or backward. T is allows you to position t e
burnline of t e print ead directly and evenly over t e apex of t e platen
surface. Fig. 6 & 7
3. W ile printing t e test pattern, adjust t e Allen adjustment screws for t e
best print quality. NOTE: It is vital t at a known good platen be in t e
unit.
4. Verify t e image is even on t e label by measuring t e distance from t e
bottom of t e barcode to t e bottom of t e label on bot sides. Refer to
Fig. 5. If uneven, adjust t e Allen adjustment screws to correct t e
alignment. T is may affect t e print quality and may need to be
readjusted.
5. If you are unable to get t e unit to produce good print quality, proceed to
Print Head Balance Adjustment and perform t e adjustment; t en return
to t is section and redo t e Print Head Position Adjustment. NOTE: You
may ave to do bot of t ese adjustments concurrently several times to
ac ieve proper print quality and alignment.
Required Equipment:  Allen Wrenc 2.5mm
 Ruler
5.3 Print Head Position Adjustment

6SATO CL608e/CL612e Mechanical Adjustments
Print Head Position Adjustment
ALLEN WRENCH ADJUST SCREWS
Fig. 7
STAY
STAY Fig. 6
NELLAFONOITATOR HCNERW DAEHTNIRPFOTNEMEVOM
ESIWKCOLCTNORFEHTOT
ESIWKCOLC-RETNUOCDRAWKCAB
TURN SCREWS
CW/CCW
TEST PRINT Fig. 5
MEASURE FROM
BOTTOM OF BARCODE
TO BOTTOM OF LABEL
MEASURE FROM
BOTTOM OF BARCODE
TO BOTTOM OF LABEL

7
SATO CL608e/CL612e Mechanical Adjustments
Print Head Balance Adjustment
Required Equipment:  #2 Pozidrv Screwdriver
 10mm wrenc
STEP PROCEDURE
1. Connect t e power cable to t e printer and AC outlet. Turn t e printer
ON.
2. Raise t e access door and load t e ribbon and label stock.
NOTE: It is vital t at a known good platen be in t e unit.
3. Loosen t e locking screws. Fig. 8
4. W ile printing, adjust t e eccentric wit a 10mm wrenc . Turn t e
eccentric clockwise to increase t e density (darker impression) of t e inner
side of t e image or counter-clockwise to increase t e density (darker
impression) of t e outer side of t e image.
5. Hold t e eccentric in place wit t e 10mm wrenc and tig ten t e locking
screws loosened in Step 3 above.
6. After adjustment, verify t at label and ribbon are still tracking correctly.
7. If you are unable to get t e unit to produce good print quality, return to
Print Head Position Adjustment and perform t e adjustment; t en return to
t is section and redo t e Print Head Balance Adjustment. NOTE: You
may ave to do bot of t ese adjustments concurrently several times to
ac ieve proper print quality and alignment.
NOTE: On t is printer, t e platen roller under t e print ead is adjustable wit an
eccentric to make print quality and pressure consistent across t e label.
LOCKING
SCREWS
ADJUST PLATE
Fig. 8
ECCENTRIC

8SATO CL608e/CL612e Mechanical Adjustments
Required Equipment:  #2 Pozidrv Screwdriver
 10mm wrenc
STEP PROCEDURE
1. Connect t e power cable to t e printer and AC outlet. Turn t e printer
ON.
2. Raise t e access door and load t e ribbon and label stock. Fig. 1
3. Loosen t e locking screws. Fig. 9
4. Turn eccentric wit wrenc .
5. W en t e carbon ribbon moves evenly wit out wrinkling, tig ten t e
locking screws.
LOOSEN
LOCKING
SCREWS
TURN ECCENTRIC
Fig. 9
NOTE: Only do t is adjustment after adjusting ribbon wind and
unwind tension.
Ribbon Roller Adjustment

9
SATO CL608e/CL612e Mechanical Adjustments
Ribbon Tension Balance Adjustment
Required Equipment:  #2 Pozidrv Screwdriver
 Flat Blade Screwdriver
STEP PROCEDURE
1. Connect t e power cable to t e printer and AC outlet. Turn t e printer ON.
2. Remove (3) screws olding t e left side cover to t e printer. Raise t e
access door and loosen t e (2) screws on t e inside top of t e printer. Lift
off t e left side cover. Fig. 11
3. Unload t e ribbon and label stock.
4. Refer to Figs. 12.
Ribbon Rewind Spindle A must be parallel wit Ribbon Roller B.
Ribbon Rewind Spindle C must be parallel wit Ribbon Roller D.
Loosen (2) locking screws astride s afts A & B. Insert a flat blade screw
driver into eac slot and adjust until s afts are parallel wit ribbon rollers B
& D. Tig ten t e locking screws astride s afts.
5. Rec eck t e ribbon alignment and printouts. If necessary, redo step 4.
NOTE: T is procedure s ould only be attempted by a qualified tec nician.
T e ribbon s ould flow evenly along t e lengt of t e STAY to avoid ribbon
wrinkles and maintain optimum print quality. If ribbon wrinkles appear as
in Fig. 10, perform t e following steps:
NOTE: Only do t is adjustment after adjusting ribbon
wind and unwind tension.
RIBBON REWIND
SPINDLE
RIBBON UNWIND
SPINDLE
RIBBON SHOWN
WITH WRINKLES
STAY
Fig. 10

10 SATO CL608e/CL612e Mechanical Adjustments
Ribbon Tension Balance Adjustment
Figs. 12
ADJUST PLATES
MOVE THE ADJUST
PLATES UP/DOWN
LOCKING SCREWS
A
RIBBON ROLLER
RIBBON REWIND
SPINDLE
RIBBON ROLLER
RIBBON REWIND
SPINDLE
STAY
"A" MUST BE
PARALLEL
WITH "B"
"C" MUST BE
PARALLEL
WITH "D"
Fig. 11
D
C
B
REMOVE (3) SCREWS
RAISE THE ACCESS DOOR
AND LOOSEN (2) SCREWS
ON THE INSIDE TOP OF
THE PRINTER