IBM Printer LA75P User Manual

LA75Plus CompanionPrinter  
SheetFeederGuide  
digital equipment corporation  
 
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Loading the Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2–1  
2–4  
3 Operating and Removing the Sheet Feeder  
3.1  
3.2  
3.3  
Operating the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Using the Sheet Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Removing the Sheet Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3–1  
3–2  
3–2  
4 Maintaining the Sheet Feeder  
4.1  
4.2  
General Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Correcting Simple Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4–1  
4–3  
iii  
 
A Paper Specifications and Technical Data  
A.1  
Paper Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
A–1  
A–3  
Tables  
A–1  
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
iv  
 
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.  
Chapter 4 shows how to maintain the Automatic Sheet Feeder, and suggests  
how you can identify and solve simple problems.  
Appendix A indicates what sort of paper you should use and how you should  
store the paper. The appendix also provides technical data about the sheet  
feeder.  
v
 
Conventions Used in This Guide  
Cautions and Notes  
The cautions and notes in this guide have the following specific purposes:  
CAUTION  
NOTE  
Contains information about preventing damage to equipment.  
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.  
About the Automatic Sheet Feeder  
The optional Automatic Sheet Feeder is designed to give you easy and efficient  
handling of single-sheet paper on the LA75 Plus Companion Printer. You can  
stack up to 80 sheets of standard bond paper in the sheet feeder at one time,  
and a new sheet is automatically loaded whenever required.  
vi  
 
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.  
Assembling and Installing the Sheet Feeder 1–1  
 
Item Number  
Item Name  
1.  
2.  
3.  
4.  
5.  
Left Paper Guide  
Stacker Supports  
Right Paper Guide  
Tabs  
Printer Control Panel  
1–2 Assembling and Installing the Sheet Feeder  
 
1
2
3
4
4
LA75 Plus Companion Printer  
5
Assembling and Installing the Sheet Feeder 1–3  
 
1
Unpack and check the contents.  
Item Number  
Item Name  
1.  
2.  
3.  
4.  
5.  
Automatic Sheet Feeder  
Documentation  
Front Stacker Support  
Rear Stacker Support  
Rear Cover  
1
2
5
4
3
1–4 Assembling and Installing the Sheet Feeder  
 
2
Attach the front and rear stacker supports to the sheet feeder.  
Assembling and Installing the Sheet Feeder 1–5  
 
3
4
5
Turn the printer OFF.  
Remove the printer’s access cover and the access cover insert.  
Remove the printer’s paper cover.  
Keep the paper cover and the access cover insert within reach.  
LA75 Plus Companion Printer  
1–6 Assembling and Installing the Sheet Feeder  
 
1.2 Installing the Sheet Feeder  
1
Attach the sheet feeder to the printer as shown.  
LA75 Plus Companion Printer  
Assembling and Installing the Sheet Feeder 1–7  
 
2
3
4
Replace the printer’s access cover.  
Attach the sheet feeder’s rear cover to the sheet feeder.  
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.  
1–8 Assembling and Installing the Sheet Feeder  
 
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.  
Loading Paper into the Sheet Feeder 2–1  
 
2
3
Slide the left paper guide all the way to the left.  
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.  
LA75 Plus Companion Printer  
2–2 Loading Paper into the Sheet Feeder  
 
5
6
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.  
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.  
Loading Paper into the Sheet Feeder 2–3  
 
2.2 Loading the Paper  
1
2
Insert the paper along the left paper guide.  
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.  
LA75 Plus Companion Printer  
2–4 Loading Paper into the Sheet Feeder  
 
3
Push the rear tabs on both paper guides towards the back of the printer to  
secure the paper against the guide rollers.  
LA75 Plus Companion Printer  
Loading Paper into the Sheet Feeder 2–5  
 
 
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.  
Selecting Page (Form) Length  
For information on selecting page length, (the number of printable lines)  
see the Configuration and Reference Information chapters in the LA75 Plus  
Companion Printer Installation and User Guide.  
Solving Problems  
Again, consult the LA75 Plus Companion Printer Installation and User Guide  
(Maintenance chapter) for advice on solving simple problems.  
Software Operation  
When you switch between using continuous paper and the sheet feeder,  
you usually need to change the settings of your software program. To work  
properly, your program needs to know how many printable lines are available  
on the page. In addition to the number of printable lines (referred to as page  
length or form length, mentioned above), you may also need to set the top  
margin, bottom margin, and the actual number of lines to be printed on the  
page. Not all software is the same, so some experimentation may be needed  
before you find the best settings to use.  
Operating and Removing the Sheet Feeder 3–1  
 
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. When the printer is on-line, and receives print  
data from the computer, the first sheet is loaded automatically. Subsequent  
sheets are then loaded as necessary. When the paper bin is empty, the printer  
automatically goes off line, and the Ready indicator (RDY) begins to blink. To  
resume printing, stack more paper in the sheet feeder, press the Ready switch,  
and then the Form Feed (FF) switch.  
Caution: If you turn off the printer when the printer detects a paper out or  
paper jam condition, any data remaining in the printer’s buffer is lost.  
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.  
3.3 Removing the Sheet Feeder  
To remove the Automatic Sheet Feeder, carry out the following steps:  
1
Feed through any paper that may be wrapped around the platen (black  
roller) by pressing the FF switch.  
2
3
4
5
6
7
8
9
Turn the printer OFF.  
Remove the sheet feeder’s rear cover.  
Remove the printer’s access cover.  
Detach the sheet feeder from the printer.  
Replace the sheet feeder’s rear cover.  
Replace the printer’s paper cover.  
Replace the insert to the printer’s access cover.  
Replace the printer’s access cover.  
10 Turn the printer ON.  
3–2 Operating and Removing the Sheet Feeder  
 
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.  
Caution: Platen cleaner dissolves plastic. Do not use platen cleaner on the  
plastic parts of the sheet feeder.  
Maintaining the Sheet Feeder 4–1  
 
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.  
ii Check that the paper stack is in the correct operating position.  
If it is not, push the rear tabs into the correct operating position.  
iii Check whether the platen motion is transferring to the sheet feeder.  
If it is not, follow the installation procedure as described in Chapter 1  
in this guide.  
iv Check that the paper release lever is in friction mode. If it is not, set  
the lever in the correct position by pushing it towards the back of the  
printer.  
There is no paper feed.  
i
If the sheet feeder is out of paper, reload the paper bin.  
ii If there is a paper jam, remove the jammed paper.  
More than one sheet feeds at a time.  
i
Check that the paper is sufficiently fanned.  
If it is not, fan, then reload the paper stack.  
ii Check that the paper conforms to the required specifications, or that it  
is not damaged.  
If it does not conform, or is damaged, replace with new paper that does  
conform to the specifications.  
iii If the paper bin is misaligned, readjust, then reload the bin.  
Maintaining the Sheet Feeder 4–3  
 
There is a paper skew.  
If the paper is damaged, replace with new paper.  
i
ii If the paper bin is not properly adjusted, readjust, then reload the bin.  
iii 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. In such a case,  
refer to the Maintenance chapter in the LA75 Plus Companion  
Printer Installation and User Guide EK-LA75S-UG-001.  
There is a paper eject malfunction.  
i
Check the state of the output stacker. If it is full, empty it.  
ii If the printhead has been incorrectly adjusted for paper thickness,  
readjust the printhead adjustment lever. (See Section 3.3 in the LA75  
Plus Companion Printer Installation and User Guide.)  
iii Check that the paper conforms to the required specifications.  
If it does not conform, replace with new paper that does conform to the  
specifications.  
4–4 Maintaining the Sheet Feeder  
 
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. If this is not possible, test a sample of the paper in the  
sheet feeder first.  
Most paper is sensitive to temperature and humidity conditions. Extremes in  
these conditions may affect the performance of the paper in the feeder and  
printer.  
Paper Type and Quality  
Plain bond, typewriter quality paper with a light wood pulp content should be  
used for optimum performance. The maximum allowable cotton or rag content  
is 25%. Papers which should be operationally tested before regular use are  
those with a textured, embossed or glossy surface, or a "hammered" type paper.  
Paper must be well cut and in pristine condition with no creases or surface  
or edge damage. The paper must be flat, not curled or curved. An existing  
curl may not exceed +-0.12" (+- 3.1 mm), that is, face and back curl. The  
paper should be noted with the natural curl going the same way for all sheets.  
Inspect and "fan" the paper prior to loading it into the paper hopper.  
Paper Specifications and Technical Data A–1  
 
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 must be cut at an angle of 90 degrees and the deviation must not be  
greater than 3 angular minutes.  
Paper Weight  
Single sheets 16-24 lbs (64 - 96g/m²).  
Paper Storage Recommendation  
64°F - 75°F  
18°C - 24°C  
40% - 60% relative humidity  
Multi-part Forms  
Multi-part forms are more complex than single sheets and adherence to  
tolerances and environmental conditions is more critical. You should use  
snap-out or top-glued form sets. You should test them before use.  
Top-glued Forms The top edge of top-glued forms must be flat, smooth, and  
free of glue vestiges. Form sets should be cut against the grain. On each side  
of the form there should be an unglued 0.7" (20mm) wide.  
Snap-out Forms The snap-out perforation ratio hole to paper must be 7:0.8  
(first sheet and copies) and 3:0.8 (last sheet). An alternative can be micro-  
perforation for the first and last sheet. (Recommended 72 dots/inch).  
A–2 Paper Specifications and Technical Data  
 
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 (0.8kgs)  
Paper Bin Capacity:  
Output Stacker Capacity:  
Paper Dimensions:  
A maximum of 80 sheets of 20lbs (80g/m²) paper weight  
A maximum of 80 sheets of 20lbs (80g/m²) paper weight  
Length: max. 14" (355mm);  
min. 8" (203mm)  
Width: 4" to 9" (100mm to  
229mm)  
Weight: 16lbs-24lbs (64-96  
g/m²)  
Operating Temperature  
Range:  
50°F to 104°F  
Relative Humidity:  
40% to 80%  
Temperature Variation:  
max. 15°F (8°C) per hour  
-22°F to 158°F  
Storage Temperature  
Range:  
Relative Humidity:  
max. 95% non-condensing  
Paper Specifications and Technical Data A–3  
 
 

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