Specifications For 1050 Recording Media - IBM 1050 Reference Manual

4. Lift the ribbon cartridge straight up and ease the
ribbon out of the slots in the ribbon guide.
5. Rewind the excess ribbon by inserting a wooden
pencil in either of the cartridge holes and turn in
the direction of the arrow.
6. Position the new cartridge with the exposed ribbon
facing the platen.
7. Slide the ribbon through the slots in the ribbon
guide.
8. Position the cartridge on the cartridge posts and
press into place.
9. To rewind excess ribbon, turn either cartridge post
in the direction of the arrow.
10. Move the ribbon change lever to its extreme left
position. This lowers the ribbon guide into proper
typing position.
Platen Removal
To remove the platen for changing or cleaning,
1. Turn the main-line switch off.
2. Lift the top cover.-
3. Move the paper release lever and the paper bail to-
ward the operator.
4. Press the platen latches at both ends of the platen
assembly (see Figure 21) and lift the platen out.
Platen Replacement
1. Position the ratchet teeth to the right.
2. Center the end plate in the groove in the right end
of the platen shaft. Press the platen into position,
and check for a click when it locks.
Cleaning the Print-Element
Two specially designed brushes are available from
IBM
for cleaning the
IBM
1052 and 1053 Printers. They are:
the dual-purpose brush, and the print element brush.
To clean the print element:
1. With the mainline switch on, set the print-element
carrier in lower case.
2. Turn the mainline switch off.
3. Remove the print element.
4. Clip the print element to the end of the dual-pur-
pose brush.
5. Brush away from you and toward the top of the
print element, using the element brush.
76 1050 Detailed Information
Specifications for 1050 Recording Media
1052/1053 Document Printing Recommendations
Continuous Card-Stock Forms
Consistently high-quality printing is possible on all of
the form area except for the area directly adjacent
to the top and bottom edges ( 12-11 punching area and
the 8-9 punching area). These areas are subject to some
variation in print quality due to a tendency of the
card to leave the platen as the card edge meets the
printing line. The use of continuous forms with binder
strips between the cards helps to alleviate this con-
dition.
Single Card-Stock Forms
The single-card form is subject to the same printing
variation along the top and bottom edges as the
continuous-card forms. Otherwise, consistently high-
quality printing is possible on the remainder of the
card.
Multiple-Copy Forms
When this type of form is used, the best form-feeding
results are obtained when the sheets are either stapled
or glued together. Multiple-copy forms that are
crimped together are not as satisfactory. The direction
of the forms paper-grain should be parallel to the print
line. Maximum forms weight should not exceed 12 lbs.
paper.
Roll Paper Specifications
Maximum width: 15"
Maximum outside diameter:
5-W'
Minimum diameter of center hole: %"
Specifications for Paper• Tape and
Edge-Punch Documents
The 1050 system is capable of using paper tape, Mylar*
laminated paper tape, Mylar coated aluminum tape,
and edge-punched documents. These specifications
apply to all of these document types.
Width:
Length:
Thickness:
Tape l" (± .003")
Document, 12" Maximum, 2" Minimum
(Width cannot exceed length)
Single Document, 4" to 16" (feeding edge, in
increments of .100 inch)
Paper, .004" (± .0003")
Mylar, .003" (± .0003")
Document, .004" to .010"
(including folds)
*Trademark of
E.
I. duPont deNemours Company