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The sheet is not cut properly
Are the blade and blade holder installed correctly and securely ?
Install these so that there is no looseness (see “1-4-2 Installing the cutter” on page 7).
Is the blade chipped ?
If it is, replace it with a new one (see “1-4-2 Installing the cutter” on page 7).
Check if there are any dirty deposits on the blade.
If dirty, remove and clear the blade.
Are blade speed, blade compensation, and cutting speed appropriate for the sheet being cut?
Perform a cutting test and use the display menu to select the appropriate values (refer to “1-4-5 Cutting Test” on page 15).
Is a thick sheet being used?
If you are using a thick sheet, use the display menu to set “SHEET WEIGHT” to “HEAVY” (refer to “SHEET WEIGHT
Cutting thicker sheets” on page 25).
The sheet slips away from the pinch rollers during the cutting process
Are the sheet loading lever on both the left and right sides raised?
If a sheet loading lever has not been raised, then the sheet has not been secured in place. Make sure that the pinch rollers on
the left and right sides are within the boundaries of the sheet, and raise the sheet loading levers. (Refer to “1-4-3 Loading the
Sheet” in on page 8).
Make sure the sheet is parallel with the grit roller.
If the front edge of the sheet you are working with is at an angle, cut off the odd-shaped part to make it straight, then align it
so that it is parallel with the grit roller.
If the sheet is fed for a long distance, the sheet will be less likely to slip out of alignment if the pinch rollers are moved
inward slightly (5 to 25 mm).
When a roll sheet is loaded, use the display menu “AREA” function to feed a sheet by the length to be used (ensure a
small margin by setting a length that is about 0.1 m longer than the cutting data), make sure the pinch rollers are still
in contact with the sheet (not off the left or right edges, or on the edges), and then cut.
If the sheet is pulled while cutting it is more likely that sheet misalignment and motor errors will occur.
If a sheet with holes for sprocket feed is being used, placing the pinch roller above the hole portion may cause the
sheet to slip. Be sure to set the pinch roller over the sheet to the inner side of the hole portion.
If a flat sheet (such as a standard-size sheet or cut sheet) has been loaded, has the “PIECE” setting been selected
for the sheet type?
When loading the sheet, select “PIECE” for the “SELECT SHEET” display menu (refer to “1-4-3 Loading a Sheet” on page
8).
Make sure that the left and right edges of the sheet do not touch the inner surfaces, front cover and guard bars of the
PNC-1850/1200 during cutting. Such contact may not only damage the sheet, but could also make normal sheet
advancing impossible and cause the sheet to slip.
