Service manual

Page 5-5

Section 5. Mechanical Adjustments

PN 9001080

Rev. A

SATO M-8485Se Standard Print Engine

Service Manual

5.3 Ribbon Guide Plate Adjustments

STEP PROCEDURE

1. Check for even ribbon tension by watching the ribbon movement under the

guide plate as it moves upward toward the ribbon rewind spindle. If it

appears uneven, proceed to Step 2. Fig. 5-3 and 5-4

2. Loosen the (2) retaining screws and reposition the guide plate. Retighten the

screws. Fig. 5-5

3. Recheck the ribbon alignment and print. If results are not satisfactory or if

wrinkles appear behind the head, adjust the Ribbon Shaft Eccentric Nut (Fig.

5-6) with a 10mm wrench and Phillips screwdriver. For additional refinement,

perform Print Clutch Adjustment (Section 5.2), Print Head Balance

Adjustment (Section 5.4) and/or Print Head Alignment (Section 5-5).

Required Equipment:  10mm Open End Wrench

 #2 Phillips Screw Driver

If the ribbon is not smooth across the guide plate (ribbon wrinkle) and adjustment is required,

perform the following steps:

RIBBON WRINKLE

(EXAGERATED FOR

CLARITY)

GUIDE PLATE

ig. 5-3