Printer Test; Disk Drive Test (M1700A And M1701A Only) - HP PageWriter XL M1705B Service Manual

If the CPU assembly fails the test, the message CPU assembly test
failed. appears on the keyboard display.
Note .I
w?
The printer door must be closed to properly test the CPU assembly.
Printer Test
The printer test exercises the printhead and paper drive mechanism
by printing a test pattern on the page four times, once for each
printer speed. The pattern consists of a rectangular box that
contains the entire character font, a column of numbers, and a black
& white pattern. While the test patterns are printing, the message
Printing test pattern . . . appears in the keyboard display.
When the printout is complete, inspect it for:
n
straight diagonal lines
H consistent print quality for all four patterns
n
constant width for all four patterns
N visible separation between the close parallel lines
H accurate rendition of all characters
H clean black bars with no dropout in black areas
n
perforation aligned with tear bar
If the printer assembly fails the test (not including the visual
verification of the printout), the message Printer test failed.
appears on the keyboard display.
Disk Drive Test (M1700A and M1701A only)
Caution
This test destroys any data previously recorded on the disk. Be sure
that any data on the disk is expendable, or use a blank disk.
Suggestion .I
t?
c
The disk drive test formats, writes to, and reads from a disk installed
in the drive. When you select the disk drive test, the following
display appears requesting confirmation of the selection:
Disk test destroys disk data. Select?
Yes No
Yes Allows the test to be selected.
No
Prevents the test from being selected.
Clearly label and set aside a test disk to help avoid the possibility of
accidently destroying valuable data.
If the disk drive fails the test, the messa.ge Disk drive test failed.
appears on the keyboard display.
4-4 Performance Verification and Maintenance