LA75 Plus Companion Printer Sheet Feeder Guide digital equipment corporation
First Printing, July 1991 The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document. The software described in this document is furnished under a license and may be used or copied only in accordance with the terms of such license.
Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v 1 Assembling and Installing the Sheet Feeder 1.1 1.2 Assembling the Sheet Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installing the Sheet Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1 1–7 2 Loading Paper into the Sheet Feeder 2.1 2.2 Preparing to Load the Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A Paper Specifications and Technical Data A.1 Paper Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–1 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface About This Guide The LA75 Plus Companion Printer Sheet Feeder Guide explains how to install and operate the Automatic Sheet Feeder. This guide is intended for someone with little or no computer experience. The guide contains four chapters and one appendix. Chapter 1 shows how to assemble and install the Automatic Sheet Feeder. Chapter 2 explains how to load paper into the Automatic Sheet Feeder. Chapter 3 shows how to operate and remove the Automatic Sheet Feeder.
Conventions Used in This Guide Cautions and Notes The cautions and notes in this guide have the following specific purposes: CAUTION Contains information about preventing damage to equipment. NOTE Contains general information of which you should be aware. Associated Documentation The LA75 Plus Companion Printer Installation and User Guide contains information on installing and using the LA75 Plus Companion Printer.
1 Assembling and Installing the Sheet Feeder 1.1 Assembling the Sheet Feeder The first diagram shows the complete Automatic Sheet Feeder attached to the LA75 Plus Companion Printer. The following table lists the numbered items in the diagram.
Item Number Item Name 1. Left Paper Guide 2. Stacker Supports 3. Right Paper Guide 4. Tabs 5.
1 2 3 4 4 LA7 5 Plu s Co mpa nion Prin ter 5 Assembling and Installing the Sheet Feeder 1–3
1 Unpack and check the contents. Item Number Item Name 1. Automatic Sheet Feeder 2. Documentation 3. Front Stacker Support 4. Rear Stacker Support 5.
2 Attach the front and rear stacker supports to the sheet feeder.
3 Turn the printer OFF. 4 Remove the printer’s access cover and the access cover insert. 5 Remove the printer’s paper cover. Keep the paper cover and the access cover insert within reach.
1.2 Installing the Sheet Feeder 1 Attach the sheet feeder to the printer as shown.
2 Replace the printer’s access cover. 3 Attach the sheet feeder’s rear cover to the sheet feeder. 4 Push the paper release lever towards the rear of the printer to set the printer in friction mode. 5 Turn the printer ON Note: If you have installed the sheet feeder with the power ON, switch the power OFF, then ON again, for the sheet feeder to be automatically selected by the printer’s firmware.
2 Loading Paper into the Sheet Feeder 2.1 Preparing to Load the Paper 1 Pull the right and left rear tabs towards the front of the printer, until the paper bin locks open to allow for paper loading.
2 Slide the left paper guide all the way to the left. 3 Slide the right paper guide so that it roughly matches the width of your paper. 4 Center the front stacker support between the two paper guides.
5 Take a stack of paper and fan it. This keeps the paper from sticking, and prevents the sheet feeder from feeding more than one sheet at a time. 6 Tap the side and bottom edges of the paper on a flat surface to even up the stack. Note: To avoid possible damage to the print head, ensure that your paper size is not smaller than the print area. For best results, use typewriter-quality paper. Refer to Appendix A for further information on paper specifications.
2.2 Loading the Paper 1 Insert the paper along the left paper guide. 2 Adjust the position of the right paper guide until the paper is held firmly, but not so tightly that it causes the paper to bunch.
3 Push the rear tabs on both paper guides towards the back of the printer to secure the paper against the guide rollers.
3 Operating and Removing the Sheet Feeder 3.1 Operating the Printer Testing the Printer To ensure that you have installed the sheet feeder correctly, you can run the printer’s self-test. See the LA75 Plus Companion Printer Installation and User Guide (Installation chapter) for more information.
Many programs give you two ways to change these settings: You can change the settings in each individual file you print. You can change the program’s default settings so that every time you use the program, these new settings are in effect. 3.2 Using the Sheet Feeder After stacking paper in the sheet feeder, make sure that the Ready indicator (RDY) on the printer’s control panel is lit up, indicating that the printer is on-line and ready to print.
4 Maintaining the Sheet Feeder 4.1 General Maintenance The Automatic Sheet Feeder is designed to operate reliably over a long period of time with minimal attention. Preventive maintenance is both necessary and easy to accomplish. You should regularly do the following: Dust the sheet feeder, first removing the feeder from the printer. Clean all pick-up rollers (see diagram) with a lint-free cloth and platen cleaner. (See the DEC Direct Catalogue for the appropriate cleaner). Clean the printer’s platen.
4–2 Maintaining the Sheet Feeder
4.2 Correcting Simple Problems This section lists possible fault symptoms and suggests tests and actions to help you clear those symptoms. Refer also to the Maintenance chapter in the LA75 Plus Companion Printer Installation and User Guide. The feeder does not operate. i It is possible that you have installed the sheet feeder with the power ON. Switch the printer OFF, then ON, for the sheet feeder to be automatically selected by the printer’s firmware.
There is a paper skew. i ii iii If the paper is damaged, replace with new paper. If the paper bin is not properly adjusted, readjust, then reload the bin. The feeder pick-up rollers may not be gripping the paper properly. Check the paper surface for defects. Clean the pick-up rollers. Note: If the feeder inserts paper correctly on to the printer platen but the paper then skews, there is a printer fault.
A Paper Specifications and Technical Data This appendix describes what paper you should use and how you should store it. The appendix also provides technical data about the sheet feeder including the following: Physical dimensions of the sheet feeder Paper hopper capacity Paper dimensions Environmental conditions A.1 Paper Specifications To ensure that the sheet feeder works properly, use paper that conforms to the following specifications.
Paper Surface Smoothness A single sheet of paper must have a surface within a smoothness range of 18 to 30 Bekk or 180 to 140 Sheffield. The under side of the last page in a multi-form set must have a smoothness range of 18 to 30 Bekk or 180 to 140 Sheffield. Tolerance Since variable length paper may be used in the sheet feeder, only width is specified. The paper width tolerance in the same stack is 0.020" (0.51 mm).
Paper Weight Multi-part forms with carbon (max. 2 copies) First/last sheet 17.50-20.00 lbs (70-80g/²) Copies 8.75-10.00lbs (35-40g/²) Carbon approx. 6.25 lbs (25g/²) Note The uncoated surface of the carbon paper has to be rough. Pressure-sensitive multi-part forms (max. 2 copies) First/last sheet 17.50-20.00 lbs (70-80g/²) Copies 10.00-15.00 lbs (40-60g/²) Table A–1 Technical Data Physical Dimensions: Height: 7.48" (190mm) Depth: 11.50" (292mm) Width: 12.75" (324mm) Weight: 1.76lbs (0.
